Back-end utvecklare - Lediga jobb

Vi söker en erfaren och metodstark backendutvecklare som är van att arbeta med komplexa, redundanta och realtidskritiska system i större organisationer.

Du kommer att arbeta med ett avancerat expertsystem bestående av flera samverkande komponenter, där hög kvalitet, stabilitet och noggrannhet är avgörande. Rollen passar dig som trivs med komplex problemlösning och som har förmåga att förstå hur olika, oberoende komponenter samverkar i ett större system.

Du arbetar självständigt och tar ansvar för att planera och prioritera dina arbetsuppgifter utifrån verksamhetens behov. Som person är du strukturerad, metodisk och analytisk, med ett lösningsorienterat arbetssätt.

Uppdraget genomförs på plats på kundens kontor i Stockholm. Du kommer att ingå i ett team med svenska som arbetsspråk, både i tal och skrift.

Skallkrav:

• Minst fem års dokumenterad erfarenhet av utveckling av backendtjänster i .NET Core-ramverket i C#, varav minst två (2) år med .NET 6.0 i C# eller senare.
• Minst två års dokumenterad erfarenhet av testdriven utveckling och utveckling med automatiserade enhetstester.
• Minst två års dokumenterad erfarenhet av utveckling i distribuerade system med minst 5 separata komponenter eller tjänster, där kandidaten haft en aktiv utvecklande roll av dessa.
• Minst två års dokumenterad erfarenhet av utveckling med Entity Framework samt användning av Dependency Injection i .NET-applikationer.
• Minst ett års dokumenterad yrkeserfarenhet av eventbaserade system, t.ex. MQTT, Kafka, RabbitMQ, SignalR eller liknande.
• Minst två års dokumenterad erfarenhet av utveckling och förvaltning av verksamhetskritiska system där hög tillgänglighet och driftsäkerhet varit centrala krav.
• Minst tre års dokumenterad erfarenhet av systemintegration mellan flera system, inklusive utveckling av integrationslösningar (t.ex. API-integrationer eller liknande).

Din ansökan

Låter rollen intressant och passande? Ansök i så fall omgående för vi intervjuar löpande och rollen kan tillsättas innan sista ansökningsdatum. Vi kan enbart ta emot och bearbeta din ansökan genom att du registrerar ditt CV i vår portal. Med avseende på GDPR kan vi ej ta emot ansökningar via e-post. Varmt välkommen med din ansökan! Uppdraget är en del av Quest Consulting personaluthyrning.

Om oss

Quest Consulting är ett auktoriserat konsultbolag med kollektivavtal, försäkringar, friskvård och tjänstepension. Vi är specialiserade inom IT, Teknik, HR, Administration och Ekonomi. Vår målsättning är att vara din personliga samarbetspartner och just därför är det så viktigt för oss att arbeta efter våra kärnvärden där våra ledord är att vara Personliga, Nyskapande och Professionella.  

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.

nShift is the leading global provider of cloud delivery management solutions (SaaS), we enable the frictionless shipment and return of almost one billion shipments across 190 countries each year. We are headquartered in London and Oslo and have over 500 employees across offices in Sweden, Finland, Norway, Denmark, the United Kingdom, Poland, the Netherlands, Belgium, and Romania.

Our software is used by many of the world leading e-commerce, retail, manufacturing, and 3PL shippers due to us having over 1000 carriers integrated into our platform, nearly 3 times more than our competitors!

If you buy goods online, there is a strong chance that nShift has powered that delivery, so come and join us as we shape the future of shipping, one frictionless journey at a time.

About the role We’re looking for a skilled and solution-driven Java Developer to join our Returns team. You’ll help build and evolve the heart of our post-purchase tools – allowing e-commerce websites to offer a smooth returns mechanism and help us ensure it runs reliably at scale. This is a hands-on role where you’ll be involved in everything from design and development to testing, deployment, and monitoring.

About you You’re a team player who thrives in collaborative environments but also enjoy working independently when needed. With a structured and solution-oriented mindset, you like solving complex challenges and producing clean, high-quality code. Communication, curiosity, and a positive attitude are key strengths you bring to your work.

Responsibilities

· Design, develop, test, and release backend features for Returns in line with team and company guidelines.

· Build and maintain integrations with e-commerce platforms (e.g. Shopify, Magento, Centra) — including webhooks, authentication, and data imports.

· Contribute to architecture and platform decisions (security frameworks, GDPR, architecture, monitoring, CI/CD tools).

· Write clean, testable, and reusable code that is scalable and cost-efficient.

· Work with modern practices such as code reviews, automated testing, and continuous integration/delivery.

· Be an active member of an autonomous team, helping shape both the product and how we work.

· Stay up to date with new technologies and proactively suggest improvements for performance and scalability.

Required professional experience

We are looking for both junior and senior backend engineers with experience in most of the following technologies:

· Java

· Spring Boot and the Spring ecosystem (Spring Data JPA / Hibernate)

· PostgreSQL, including schema migration tooling (Liquibase or Flyway)

· AWS (S3, SES, and related services)

· CI/CD knowledge such as Jenkins, Bitbucket Pipelines, Docker, etc.

· Monitoring tools such as ELK stack or equivalent

· Testing: unit testing (JUnit, Mockito), integration testing against mocked external services (WireMock, REST Assured), and performance testing (e.g. JMeter)

Nice to have:

· Designing and versioning public REST APIs (OpenAPI / Swagger)

· Redis and caching strategies

· E-commerce or post-purchase domain experience

For senior candidates, we additionally value experience working in a large, long-lived codebase — carving out and building modern services alongside a monolith, and driving modernization without disrupting a system that merchants rely on every day.

What we’re looking for in you

· Strong problem-solving skills with the ability to deliver clean and scalable code.

· Service-minded with a positive, proactive attitude.

· Comfortable working independently as well as in a collaborative agile team.

· Fluent in written and spoken English.

Why join us?

At nShift, you’ll work on a platform used globally to handle millions of deliveries, solving complex technical challenges with real-world impact. We value knowledge sharing, autonomy, and continuous learning, offering plenty of opportunities to grow your skills while contributing to meaningful projects.