Systemutvecklare - Lediga jobb

Every day, millions of people use SCRL to create and share content across social platforms. Behind the product is a small, profitable, and fully self-funded team based in Stockholm.

Now we’re entering a new phase. As SCRL expands beyond native apps, we’re building the backend infrastructure required to support accounts, subscriptions, synchronization, APIs, and cross-platform experiences at scale.

We’re looking for a Senior Backend Engineer to help shape that foundation. You’ll work on the systems powering user identity, content delivery, subscription management, and data synchronization across iOS, Android, and web, while helping define the architecture and engineering standards behind the platform long term.

What you will do In this role you will own the backend that powers SCRL across iOS, Android, and our upcoming web platform. You will work both on the bigger architectural decisions with our CTO and Head of Data, and on the new features together with the frontend team during our sprints. Day to day, that means:

• Building and maintaining the APIs and services that deliver content to millions of users

• Designing systems that scale as we grow, without scaling our costs at the same rate

• Owning our PostgreSQL database and how we store and serve content

• Building scalable and cost-efficient systems for storing and delivering images and creative assets using AWS and S3

• Making sure premium status stays in sync across iOS, Android, and web

• Implementing proper security and access control, and making sure we stay GDPR compliant as we start storing user generated content in the cloud

What we are looking for

• Several years of experience building and operating backend systems in production

• Strong foundations in TypeScript and PostgreSQL

• Experience working with cloud infrastructure on AWS or GCP

• Experience building systems that have scaled in terms of users, traffic, or complexity

• Comfortable being a senior voice in discussions around architecture, tradeoffs, and long-term platform decisions

What we offer We are a small, international team based by Slussen in central Stockholm. Most of us work from the office with some flexibility, and the team is small enough that everyone has visibility into what is being built and why.

What you'll get:

• Significant ownership and technical influence from day one

• A profitable, self-funded product used by millions globally

• A small and experienced team with fast decision-making and close collaboration

• 30 days of paid vacation

• Health benefits and pension salary exchange

• A fully stocked office with snacks and Nintendo Switch

• Monthly after works and quarterly team activities

• Annual company retreats. Recent trips have taken us to Bali, Lisbon, and Madrid.

Want to become a part of Appostrophe? Then we’d love to hear from you. We review applications continuously. If you have any questions feel free to reach out to Johanna or Gabriella at Ants Tech Recruiters.

About Carla

At Carla, we believe that more people should be able to drive electric vehicles. Therefore, we have set out to build the safest, most convenient and transparent way to sell, buy, or lease an electric car. Carla was founded in 2020 in Stockholm, with strong VC backing. We are now in an exciting growth phase and are looking for like minded people. That means being driven, humble, and excited about creating outstanding and effective experiences and smart solutions.

Recruitment need

Carla is a startup in an exciting growth phase, and we are looking for a skilled Backend Engineer to contribute to the technical development of products within our Product & Tech team. Your primary focus will be solving important and complex problems with high-quality code, primarily in Go, while also being comfortable and keen to work end-to-end when needed in our TypeScript / React frontends.

We value engineers who combine strong engineering fundamentals with curiosity for modern tools, including AI-assisted development, to increase their impact and effectiveness. You will help ensure our systems are robust, scalable and reliable, while also contributing to a codebase that is easy to understand, maintain and evolve.

If you enjoy working close to real business problems, collaborating across product and engineering, and building efficient systems that drive business success, this role is for you!

Responsibilities include, but are not limited to:

Hands-On Backend Development

• Write clean, efficient, and maintainable code, primarily in Go for our backend, while being comfortable and keen to work end-to-end in our React and TypeScript frontend when needed

• Use modern development tools, including AI-assisted workflows, to improve your speed, quality and impact as an engineer

• Design, develop and enhance backend services and APIs that are critical to our operations, including inspection, workshop planning, quality control and beyond

• Debug and resolve technical issues quickly to ensure the stability and reliability of our systems

System Optimization and Improvement

• Regularly evaluate and improve system performance, focusing on scalability, responsiveness and reliability

• Improve our codebase by making it easier to understand, test, maintain and evolve over time

• Collaborate closely with backend and frontend developers, product managers and designers to ensure seamless integration between backend services and user-facing applications

• Manage technical debt by refactoring code and improving existing systems

Collaboration and Problem-Solving

• Work closely with cross-functional teams to deliver pragmatic solutions that align with business needs

• Participate in code reviews, providing constructive feedback to improve code quality, clarity and long-term maintainability across the team

Qualifications:

We believe that the ideal candidate has:

• 3-4+ years of experience in backend development and solid software architecture fundamentals

• Strong hands-on experience with Go and building reliable backend services and APIs

• Experience with PostgreSQL and cloud-based architectures

• Comfortable working with TypeScript and React when needed, or motivated to grow into that part of the stack

• Curious and pragmatic in using AI-assisted development tools to improve engineering effectiveness, all the way from planning to execution and reviews

• Good communication skills and a collaborative, product-minded approach

• A plus if you have experience building systems that support operational workflows or internal tools at scale

What is in it for you?

Most of all, this is a fantastic opportunity to work for a category-defining company, with great values, and a business model that doesn't talk about sustainability - but is based on it.

Apart from that, we offer:

• Joining one of Sweden’s fastest growing scaleups

• A career-defining role at a startup and an opportunity to grow and learn from knowledgeable co-workers

• We’re a start-up, which means we work smarter, not harder. Life-work balance still plays an important role in creating long-lasting productivity and output

• A workplace that believes strength is found in diversity. We hire people regardless of background, education, experience or gender

• Market competitive salary

So, If you are looking to join a capable and collaborative team and directly impact both product quality and team effectiveness, apply today! We’re fast, both in terms of recruitment and when it comes to growing our business. We have no plans on stopping anytime soon, and hopefully, this is where you come in!

For this role, location is flexible. If you are based in Stockholm, you are welcome to work from our office, but we are equally open to remote candidates. Today, our team members work from Stockholm, Gothenburg Germany and Poland.

You know that bit where every company says they’re “changing the world”? Yeah, it can feel a little forced. But we like to think our story actually has some realness to it.

Our story begins with Shadi Bitar and Ninos Malki, who came to Sweden from Syria as kids and discovered that books could be a bridge - helping them learn the language, understand the culture, and explore new worlds.

A thought emerged, what if everyone could have that? And just like that, Nextory was born - your all-access pass to read, listen, and discover new perspectives without limits.

And now, we're on a quest to find a Product Engineer. 

Let us tell you about the role 📖 As a Product Engineer at Nextory, you will be involved throughout the entire product development journey - from early ideas and problem discovery to implementation, launch, and continuous improvement. We’re shifting from traditional development roles towards engineers who take ownership, think holistically, and contribute far beyond writing code.

We believe that the future of software engineering is more about authoring intent than writing lines of code.

You will work across the stack with a focus on backend development, distributed systems, integrations, and scalable architecture. Just as importantly, you’ll collaborate closely with relevant stakeholders to shape solutions that create real value for our users.

The main character we’re looking for 👀 We believe you are a curious and product-minded engineer who enjoys solving complex problems and building scalable, high-quality systems. You thrive in collaborative environments and are just as comfortable collaborating with humans as you are working alongside AI-powered tools, agents and workflows to scale your own impact.

Furthermore, we believe you have:

• MSc, BSc in Computer Science or another relevant field, or equivalent work experience.

• Around 5 years or more experience working with backend development

• A strong understanding of distributed systems, microservices patterns, and how to build for scalability and resilience.

These are a few of the technologies we work with.

Backend: Java

Cloud & Infrastructure: Google Cloud Platform, Kubernetes, Docker, Terraform

Databases, Caching & Messaging: PostgreSQL, MongoDB, Redis, Kafka

While solid Java experience is strongly preferred, we don’t expect you to have experience with everything else that we’re using. We care more about having strong engineering fundamentals and a curiosity to learn.

The Nextory way of working 🏠 At Nextory, we believe a strong and inclusive culture is key to our success and that culture flourishes when we meet and collaborate in person as much as possible. That’s why we spend the majority of the working time at our beautiful office!

We are based in Stockholm, Sweden, with offices in Paris and Bangalore. Our hybrid work policy includes four days in the office and Wednesdays as a work-from-home day.

Your next story starts here 💫 We look forward to your application. Applications are reviewed continuously. If you have any questions about the role, please contact Erika Thorslund, Talent Acquisition, erika.thorslund@nextory.com

Please note that we do not offer relocation and that a six-month probationary period applies.

Quartr is a software company serving the world of finance. Every day, leading companies and financial institutions worldwide use our products to research faster and understand deeper.

For too long, markets have been obsessed with numbers. Everyone has access to the same quantitative data, while qualitative insights – the words, the signals, the nuance – have remained mostly in the shadows. We make those insights accessible, searchable, and actionable.

Our products are used daily by some of the most sophisticated teams in finance and tech, including major hedge funds and Magnificent 7 companies, and over a million finance professionals have downloaded our mobile app.

We're backed by some of the smartest minds in our industry and growing fast at a global scale, and we're still at the very beginning of what we expect to be a multi-decade journey.

We are looking for a Python Backend Engineer to play a key role in scaling and improving our transcripts pipelines. If you love engineering robust software, extracting information from text, and thrive in a dynamic, fast-paced environment, we'd love to hear from you!

Our transcripts team builds and maintains the pipelines that power one of Quartr's most important data assets: transcripts. Your work will provide the core data foundation that powers essential product features and drives future product development.

• Build scalable systems for transcript ingestion, processing, and enrichment from diverse text sources

• Optimise backend performance for high-volume, text-heavy workloads and parallel processing

• Work on text processing and information extraction: entity recognition, metadata enrichment, and semantic structuring of transcripts

• Collaborate with cross-functional teams to shape features from concept to release, ensuring outstanding user experiences

• Monitor and troubleshoot data pipelines to ensure smooth operation and timely data delivery

• Self-driven, proactive, and confident in taking full ownership of projects

• A keen interest in NLP, speech-to-text, or large-scale text pipelines is advantageous

• Comfortable learning new technologies and eager to improve products and processes

• Balance pragmatism and craftsmanship, knowing when to move quickly and when to build for long-term scalability - even in complex systems with many interdependent components

• Communicate clearly and effectively, thriving in a high-paced, collaborative environment

• Based in Sweden with a valid work permit

• 3+ years of professional experience building robust backends in Python, preferably for large-scale or data-intensive systems

• Proven experience developing and maintaining REST APIs using frameworks such as FastAPI, Flask, or Django

• Familiarity with asynchronous programming and distributed processing

• Ability to explain code and technical concepts clearly to both technical and non-technical stakeholders

• Ability to propose durable, simple solutions to complex problems

• Do your life's work: The world's leading finance professionals use Quartr daily. We do fewer things better and hold a very high bar for quality.

• Join the foundational team: We're still at the very beginning of a multi-decade journey. You'll have a big influence on product, culture, and how we win.

• Meritocracy over hierarchy: You'll join a culture where the best idea wins. We value clear thinking, leave ego at the door, and obsess over the details.

• Office culture with flexibility: Join us in one of our offices. We value being together, while also offering the flexibility to work from home when needed.

• Compensation & well-being: We offer competitive salaries, benefits, and a generous wellness allowance to support your physical and mental health.

We include occupational pension for all employees in Sweden.

Vill du ta ditt konsultande till nästa nivå hos Sveriges bästa arbetsgivare? Vi vet vad du tänker. Du har hört det förut. Men tro oss, det har du inte. Vårt körsbär på konsulttårtan är något annat. Sök jobbet och smaka själv!

Vi söker nu en erfaren integrationsutvecklare till ett långsiktigt uppdrag hos en samhällsviktig aktör inom energisektorn. Uppdraget passar dig som har gedigen erfarenhet av Java-baserad systemutveckling, integrationsplattformar och moderna containerbaserade miljöer.

Du kommer att bli en viktig del av ett agilt team som arbetar med utveckling, vidareutveckling och förvaltning av systemintegrationer. Teamet består bland annat av analytiker, utvecklare, testare och applikationsspecialister. En central del av uppdraget är även att bidra i migrering av befintliga integrationer från legacy-lösningar till en ny integrationsplattform.

Om uppdraget

I rollen kommer du bland annat att arbeta med att:

• utveckla och vidareutveckla integrationsflöden

• implementera integrationslösningar i Apache Camel på Kubernetes-plattform

• arbeta med XML och konvertering mellan olika XML-format

• dokumentera design och systemlösningar

• delta i migrering från befintliga legacy-lösningar till ny integrationsplattform

• bidra till införande av API Management-lösning

• delta i projekt och förvaltningsarbete

• felsöka, rätta och testa både nya och befintliga integrationer

• bidra till teamets arbetssätt och utveckling

Vi söker dig som har

• minst 5 års erfarenhet som systemutvecklare under de senaste 10 åren

• minst 3 års erfarenhet av Javautveckling

• minst 2 års erfarenhet av applikationsutveckling baserad på mikroservicearkitektur och containerteknik

• minst 2 års erfarenhet av system- och integrationsutveckling med tekniker som:

  • XML/XSLT

  • JMS

  • Web services, SOAP och/eller REST

• minst 2 års erfarenhet av utveckling med Apache Camel

• mycket goda kunskaper i svenska, både i tal och skrift

Det är meriterande om du har

• erfarenhet av systemintegration inom energisektorn

• erfarenhet av Oracle SOA Suite och Oracle WebLogic

• erfarenhet av Spring/Spring Boot

• erfarenhet av API i en API Gateway

• erfarenhet av arbete i säkerhetsklassade eller samhällskritiska miljöer

Som person är du

Vi söker dig som är självgående, strukturerad och målinriktad. Du har god samarbetsförmåga, tar egna initiativ och är flexibel när arbetsbelastningen varierar. Eftersom rollen innebär nära samarbete med både team och andra intressenter är det viktigt att du är kommunikativ, tydlig och har lätt för att skapa förtroende.

Praktisk information

Distans: upp till 50 % enligt överenskommelse, med närvaro på kontor minst 2,5 dagar per vecka Språk: svenska Säkerhet: säkerhetsprövning och registerkontroll krävs för uppdraget

Låter detta som ett uppdrag för dig? Skicka gärna din profil/CV så tar vi dialogen vidare.

Bara det bästa åt de bästa – vår personalfilosofi

Castra är en konsultgrupp inom IT och Management. Eller ja, en elite squad kan man säga. Vi samlar de vassaste och mest erfarna konsulterna, helt enkelt för att det är hos oss de får ut max i både kapacitet och livskvalitet. Vi är verksamma inom Systemutveckling, IT-infrastruktur, IT-styrning & Ledarskap samt IT-säkerhet.

Vi är utsedda till Sveriges- och Europas bästa arbetsplats, på riktigt! Det låter lite skrytsamt, men det är faktiskt inte vi som sagt det. Castra har sedan 2017 blivit certifierad av Great Place to Work, en utmärkelse som är helt baserat på medarbetarundersökningar. Vi har de senaste tre åren blivit utnämnda till Sveriges Bästa Arbetsplats för stora bolag och nu senast kammade vi även hem förstaplatsen bland Europas Bästa Arbetsplatser. Som grädde på moset är vi även ett Gasell- och Karriärföretag!

På Castra tror vi på frihet, utveckling och gemenskap. Du som konsult styr själv vilka uppdrag du tar, när du jobbar, om du vill levla upp någon kompetens och hur och mycket lön och semester du tar ut. Att du får bygga din egen logga är bara en bonus! Trodde du det var allt? Då trodde du fel. Stöd av bra chefer, aktiviteter, kompetent och snabbfotad säljstyrka, möjlighet till delägarskap, stora möjligheter att påverka bolagets framtid och härliga kollegor – listan på vad som gör Castra till en fantastisk arbetsplats kan göras lååång. Möjligheterna bra nära oändliga. Win för alla parter, säger vi.

Castra har kontor i Göteborg, Stockholm, Malmö, Linköping, Norrköping, Örebro, Jönköping och Sundsvall.

Läs mer om hur det är att jobba hos oss på castra.se/konsulterbjudande/

Har vi lyckats väcka din nyfikenhet?

Sök direkt via länken eller hör av dig till xx xx på xx.xx@castra.se eller 070-xx xx xx.

Vill du ta ditt konsultande till nästa nivå hos Sveriges bästa arbetsgivare? Vi vet vad du tänker. Du har hört det förut. Men tro oss, det har du inte. Vårt körsbär på konsulttårtan är något annat. Sök jobbet och smaka själv!

Vi söker nu en erfaren integrationsutvecklare till ett långsiktigt uppdrag hos en samhällsviktig aktör inom energisektorn. Uppdraget passar dig som har gedigen erfarenhet av Java-baserad systemutveckling, integrationsplattformar och moderna containerbaserade miljöer.

Du kommer att bli en viktig del av ett agilt team som arbetar med utveckling, vidareutveckling och förvaltning av systemintegrationer. Teamet består bland annat av analytiker, utvecklare, testare och applikationsspecialister. En central del av uppdraget är även att bidra i migrering av befintliga integrationer från legacy-lösningar till en ny integrationsplattform.

Om uppdraget

I rollen kommer du bland annat att arbeta med att:

• utveckla och vidareutveckla integrationsflöden

• implementera integrationslösningar i Apache Camel på Kubernetes-plattform

• arbeta med XML och konvertering mellan olika XML-format

• dokumentera design och systemlösningar

• delta i migrering från befintliga legacy-lösningar till ny integrationsplattform

• bidra till införande av API Management-lösning

• delta i projekt och förvaltningsarbete

• felsöka, rätta och testa både nya och befintliga integrationer

• bidra till teamets arbetssätt och utveckling

Vi söker dig som har

• minst 5 års erfarenhet som systemutvecklare under de senaste 10 åren

• minst 3 års erfarenhet av Javautveckling

• minst 2 års erfarenhet av applikationsutveckling baserad på mikroservicearkitektur och containerteknik

• minst 2 års erfarenhet av system- och integrationsutveckling med tekniker som:

  • XML/XSLT

  • JMS

  • Web services, SOAP och/eller REST

• minst 2 års erfarenhet av utveckling med Apache Camel

• mycket goda kunskaper i svenska, både i tal och skrift

Det är meriterande om du har

• erfarenhet av systemintegration inom energisektorn

• erfarenhet av Oracle SOA Suite och Oracle WebLogic

• erfarenhet av Spring/Spring Boot

• erfarenhet av API i en API Gateway

• erfarenhet av arbete i säkerhetsklassade eller samhällskritiska miljöer

Som person är du

Vi söker dig som är självgående, strukturerad och målinriktad. Du har god samarbetsförmåga, tar egna initiativ och är flexibel när arbetsbelastningen varierar. Eftersom rollen innebär nära samarbete med både team och andra intressenter är det viktigt att du är kommunikativ, tydlig och har lätt för att skapa förtroende.

Praktisk information

Distans: upp till 50 % enligt överenskommelse, med närvaro på kontor minst 2,5 dagar per vecka Språk: svenska Säkerhet: säkerhetsprövning och registerkontroll krävs för uppdraget

Låter detta som ett uppdrag för dig? Skicka gärna din profil/CV så tar vi dialogen vidare.

Bara det bästa åt de bästa – vår personalfilosofi

Castra är en konsultgrupp inom IT och Management. Eller ja, en elite squad kan man säga. Vi samlar de vassaste och mest erfarna konsulterna, helt enkelt för att det är hos oss de får ut max i både kapacitet och livskvalitet. Vi är verksamma inom Systemutveckling, IT-infrastruktur, IT-styrning & Ledarskap samt IT-säkerhet.

Vi är utsedda till Sveriges- och Europas bästa arbetsplats, på riktigt! Det låter lite skrytsamt, men det är faktiskt inte vi som sagt det. Castra har sedan 2017 blivit certifierad av Great Place to Work, en utmärkelse som är helt baserat på medarbetarundersökningar. Vi har de senaste tre åren blivit utnämnda till Sveriges Bästa Arbetsplats för stora bolag och nu senast kammade vi även hem förstaplatsen bland Europas Bästa Arbetsplatser. Som grädde på moset är vi även ett Gasell- och Karriärföretag!

På Castra tror vi på frihet, utveckling och gemenskap. Du som konsult styr själv vilka uppdrag du tar, när du jobbar, om du vill levla upp någon kompetens och hur och mycket lön och semester du tar ut. Att du får bygga din egen logga är bara en bonus! Trodde du det var allt? Då trodde du fel. Stöd av bra chefer, aktiviteter, kompetent och snabbfotad säljstyrka, möjlighet till delägarskap, stora möjligheter att påverka bolagets framtid och härliga kollegor – listan på vad som gör Castra till en fantastisk arbetsplats kan göras lååång. Möjligheterna bra nära oändliga. Win för alla parter, säger vi.

Castra har kontor i Göteborg, Stockholm, Malmö, Linköping, Norrköping, Örebro, Jönköping och Sundsvall.

Läs mer om hur det är att jobba hos oss på castra.se/konsulterbjudande/

Har vi lyckats väcka din nyfikenhet?

Sök direkt via länken eller hör av dig till xx xx på xx.xx@castra.se eller 070-xx xx xx.

About Us:

At TechStack Global AB, we’re a close-knit team of software engineers who are genuinely passionate about technology. Our mission is to empower our clients by helping them achieve their digital aspirations. Unlike typical consultancies, we prioritize hiring top-notch tech talent and pairing them with projects that truly challenge and inspire them, ensuring that their skills are fully utilized.

Are you a Senior Java Developer looking for an opportunity to work with cutting-edge technology, microservices architecture, and scalable cloud solutions? Join our team and be part of a dynamic environment where innovation meets impact!

🔹 About the Role:

As a Senior Java Developer, you will play a key role in designing, developing, and deploying scalable applications. You’ll work with Java, Spring Boot, microservices, REST APIs, AWS, and Kafka to build robust and high-performance backend systems. If you enjoy problem-solving, writing clean and efficient code, and working in a collaborative team, this is the role for you!

🔹 Key Responsibilities:

✔ Develop, enhance, and maintain high-performance Java-based applications.

✔ Design and implement RESTful APIs to support business needs.

✔ Architect and develop microservices-based applications with Spring Boot.

✔ Deploy and manage applications in AWS, ensuring scalability and security.

✔ Work with Kafka for real-time data streaming and event-driven architecture.

✔ Collaborate with cross-functional teams to deliver high-quality software solutions.

✔ Optimize applications for performance, scalability, and maintainability.

🔹 Required Skills & Experience:

✅ Strong experience in Java development.

✅ Expertise in Spring Boot and microservices architecture.

✅ Hands-on experience with REST API design and development.

✅ AWS cloud services experience (EC2, S3, Lambda, etc.).

✅ Knowledge of Kafka and event-driven systems.

✅ Experience with Agile development methodologies.

✅ Strong problem-solving and debugging skills.

📌 What We Offer:

🌟 Work on exciting projects using modern technology stacks.

🌟 A collaborative and innovative team environment.

🌟 Competitive salary & benefits package.

🌟 Opportunities for career growth and skill development.

🌟 Flexible work arrangements, including hybrid/remote options.

📩 How to Apply?

To apply for this position, please submit your resume and a cover letter outlining your relevant experience and why you're a good fit for the role. You can apply directly through LinkedIn or send your application to contact@techstack.se.

#Hiring #JavaDeveloper #SpringBoot #Microservices #AWS #Kafka #SoftwareEngineering #BackendDevelopment

Om rollen Som backendutvecklare arbetar du i kunduppdrag med att utveckla och vidareutveckla backendlösningar, ofta i miljöer där säkerhet är en central del. Du är med genom hela utvecklingsprocessen, från design och arkitektur till implementation och förbättring av befintliga system.

I rollen bygger du backendtjänster och API:er med fokus på robust systemdesign och säker kod. Du identifierar och hanterar risker i applikationer, deltar i tekniska beslut och samarbetar nära andra utvecklare, arkitekter och verksamheten. Samtidigt bidrar du aktivt till att lyfta säkerhetsaspekter i teamet och stärka den övergripande kvaliteten i leveransen.

Vi söker dig som har

• Minimum 4 års erfarenhet av backendutveckling

• Erfarenhet av API-utveckling (REST eller liknande)

• Erfarenhet av databaser och datamodellering

• Intresse för applikationssäkerhet

• Förståelse för systemdesign och mjukvaruarkitektur

Det är extra intressant om du har erfarenhet av säker kodning eller säkerhetsgranskning, har arbetat med DevSecOps eller säkerhet i utvecklingsprocesser, och är nyfiken på eller har erfarenhet av AI i utveckling.

Om ConSecuty

Vi består av seniora specialister med en tydlig ambition: att förändra hur företag arbetar med säkerhet genom att bygga en stark och proaktiv säkerhetskultur. Vi jobbar nära våra kunder i centrala Stockholm, förstår deras utmaningar och bygger lösningar som håller, både tekniskt och organisatoriskt. Samtidigt lägger vi stor vikt vid vårt team, där vi delar kunskap, stöttar varandra och skapar en miljö där du kan trivas både i dina uppdrag och tillsammans med oss.

Ansökan

Ansök via länken. Det räcker att du delar din LinkedIn-profil och svarar på några korta frågor om din bakgrund. För att vara aktuell för rollen behöver du vara svensk medborgare och tala och skriva flytande svenska och engelska. Vid frågor, kontakta ansvarig rekryterare Clara Eberhardt på clara.eberhardt@consecuty.com

Wrknest is recruiting a Backend Software Engineer on behalf of an international technology company based in Stockholm. The company develops advanced connected platforms used by businesses and consumers worldwide, with a strong focus on networking, cloud infrastructure, and smart device ecosystems.

In this role, you will join a highly skilled engineering team responsible for developing and maintaining core backend systems powering connected products and services. The position is ideal for someone who enjoys solving technically complex challenges, improving system reliability, and working across backend, cloud, embedded, and application environments.

You will become part of a collaborative and product-focused engineering culture where quality, ownership, and continuous improvement are highly valued.

ou will play an important role in designing and developing backend services that support large-scale connected systems and applications. The role involves close collaboration with several technical teams and offers the opportunity to influence both architecture and development processes.

Examples of responsibilities include:

• Designing, building, and maintaining backend services using Node.js and TypeScript

• Developing secure, scalable, and maintainable APIs and workflows

• Contributing to architectural discussions and technical decisions

• Reviewing code and supporting high engineering standards and release quality

• Investigating production issues and implementing robust solutions

• Collaborating with teams within embedded, web, mobile, product, and design

• Improving reliability, observability, and developer experience across services

Requirements

• At least 5 years of professional experience working with Node.js and TypeScript

• Minimum 3 years of experience working with SQL databases such as PostgreSQL

• Experience developing software for connected devices, infrastructure products, networking systems, or similar complex environments

• Good understanding of web security, including OWASP, OAuth, and browser security fundamentals

• Strong debugging skills and experience with defensive programming

• Professional experience with Git, Unix/Linux, and Docker-based environments

• Ability to work independently and take ownership of technical solutions

• Strong communication skills in English, both written and spoken

• Valid Swedish work permit and residence in Sweden at the time of application

Meritorious

• Experience with Rust or Go

• Experience with gRPC

• Experience with WebRTC

• Experience with DevOps, CI/CD, and build pipelines

• Experience using AI tools and LLMs to improve engineering workflows and productivity

The client values engineers who are curious, solution-oriented, and motivated by building reliable products in technically advanced environments. You are comfortable collaborating across teams while also taking ownership of your own work.

Start: According to agreement

Location: Stockholm, Sweden

Employment type: Full-time

Work model: Hybrid

Benefits

• Competitive compensation package

• Occupational pension and insurance package

• Wellness allowance

• Flexible working hours

• Access to modern technical equipment and products

Please note that a background check will be conducted in the final stage of the recruitment process.

About the client

The client is an international technology company developing advanced platforms and connected solutions used globally within networking, infrastructure, and smart technology. Their products combine software, cloud services, and hardware to create scalable and reliable ecosystems used by millions of users worldwide.

The company is driven by innovation, technical excellence, and long-term product development, offering employees the opportunity to work on impactful technology in an international environment.

Om Wrknest Engineering

Wrknest Engineering specializes in helping engineers and technicians find their next career step. We collaborate with forward-thinking companies and offer both recruitment and consulting assignments within technology and industry.

We believe in building long-term relationships and strive to be an engaged and attentive partner. Through us, you gain the opportunity to be part of technological advancements that shape tomorrow’s society, in roles where your expertise makes a real difference.

Our ambition is for you to thrive, grow, and feel proud of your work. Read more at www.wrknestengineering.se.

ABOUT SINCH

Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch’s Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email.

Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey.

At Sinch we “Dream Big”, “Win Together”, “Keep it simple”, and “Make it Happen”. These values are our foundation!

DESCRIPTION

We have a modern microservice architecture with code no older than two years, and our platform is hosted both in AWS and in our own data centers, using cloud-native technologies such as Kubernetes and Docker, to name a few. Here, you will take part in designing, developing, and deploying backend services with a focus on high availability, low latency, and scalability. These backend services form the backbone of our messaging experience, which serves more than 150,000 businesses globally.

As our new Node.js Backend Developer you will:

• Take an active role in transforming user stories into clean, maintainable, and high-quality code. This is a hands-on position focused on both design and development.
• Contribute as a key member of an autonomous, cross-functional team delivering our messaging platform to businesses around the world.
• Share your expertise and drive improvements in methodologies and best practices across the team.
• Work closely with passionate colleagues, enjoy a collaborative and fun environment, and take pride in building world-class solutions for customer engagement.

REQUIREMENTS

Who are you?

Passion for coding is the most important ingredient for success. An ideal candidate is someone who, in addition to TypeScript, has Node.js backend experience and has worked with cloud-native technologies. We are a group of enthusiastic problem-solvers who enjoy tackling complex challenges, and we’d love for you to join if you feel the same way.

• Collaboration, curiosity, and strong communication skills are essential, as we build world-class messaging solutions together.
• Strong background in modern software development practices.
• Deep expertise in designing and implementing event-driven microservices using Node.js and TypeScript.
• Hands-on experience building scalable services with cloud-native technologies.
• Fluent in English (Swedish is a plus).

Nice to Have

• Experience integrating AI-assisted development tools (e.g., Claude, Gemini, Cursor) into engineering workflows.
• Background in telecom provisioning systems or high-transaction, carrier-grade platforms.
• Familiarity with messaging protocols such as SMS, RCS, and WhatsApp.

Our corporate language is English, please submit your application in English.

At Sinch, we value learning, embrace change, and offer opportunities for personal and professional growth. Unfortunately, we are not supporting relocation at this time.

Applicants must:

• Hold Swedish or EU/EEA citizenship.
• Have a valid Swedish work permit.

OUR HIRING PROCESS

We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive. Our approach includes structured, competency-based interviews designed to evaluate your skills, experience, and qualifications relevant to the role. At times, we may include a data-driven assessment to enhance our hiring success and identify candidates likely to excel.

We believe in a two-way process and encourage you to ask questions throughout the journey. If this role isn't what you're looking for, please explore the other opportunities listed on our career page: https://www.sinch.com/careers/. No matter who you are, we hope you find an exciting path forward - hopefully with us!