Senior Software Engineer - Merchant Lifecycle at Sitoo

Stockholm, Stockholm County, Sweden -

Full Time

Start Date

Immediate

Expiry Date

23 Sep, 26

Salary

0.0

Posted On

25 Jun, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Node.js, AWS, Distributed Systems, Asynchronous Architectures, Infrastructure as Code, CI/CD, API Design, Backend Development, Cloud Services, Docker, Kubernetes, SQS, SNS, DynamoDB, Lambda, Aurora

Industry

Software Development

Description

Join our highly skilled team of developers - breaking new ground and shaping the future of retail. We dare to dream big, we have the courage to keep raising the bar, and we’re committed to being a force for good in retail - helping both established and fast-growing brands meet the ever-changing expectations of their customers. Sitoo is a fast-growing technology company exploring how far we can take innovation to deliver the world’s best Unified Commerce Platform and Point of Sale. Our technology is used in more than 20 countries - a number that keeps growing thanks to our incredible team of engineers. And we have no intention of slowing down. Are you the Senior Software Engineer we’re looking for? Your mission at Sitoo As a Senior Software Engineer at Sitoo , you’ll be part of a small, autonomous team responsible for backend services that power our platform. This is not a role where you “hand over” code - you design, build, deploy, operate, and improve your services end-to-end. A big part of your work will be making thoughtful technical decisions: choosing the right patterns, improving system architecture, and ensuring that what we build is reliable, scalable, and maintainable over time. You’ll work primarily in AWS, using modern practices such as infrastructure as code, automated testing, and CI/CD to deliver quickly without compromising quality. You’ll also play an important role in how we evolve as an engineering organization - contributing to best practices, raising the bar for reliability and observability, and helping the team make sound trade-offs. About the team The Merchant Lifecycle team is responsible for creating and maintaining the tools and experiences that guide merchants through every stage of their journey with Sitoo - from initial onboarding through ongoing success and growth to off-boarding / de-provisioning. What you’ll work with In this role, you’ll design and operate low-latency backend services, working across both synchronous APIs and asynchronous, event-driven systems. You’ll integrate with internal and third-party systems, and ensure that services behave well under real-world load. You’ll continuously improve how systems perform in production - reducing latency, increasing resilience, and strengthening observability through logging, metrics, and alerting. When incidents happen, you take part in understanding root causes and driving long-term fixes, not just quick patches. Security and efficiency are also part of the job: building systems with least-privilege access, secure defaults, and a conscious approach to AWS cost and performance. What you bring to the table You are an experienced engineer who takes ownership beyond just writing code. You care about how systems behave in production and continuously look for ways to improve them. Therefore, we believe that you have: Strong backend development experience with Node.js or similar Proven experience building scalable and reliable cloud services Solid understanding of distributed systems and asynchronous architectures Experience with infrastructure as code and modern CI/CD practices Experience designing and integrating APIs A product-oriented mindset with a focus on real user value Just as importantly, you bring a strong sense of ownership. You approach problems in a structured and pragmatic way, communicate clearly, and collaborate well with others. You care about building systems that not only work today, but continue to work tomorrow. Bonus points Experience with AWS services such as SQS, SNS, DynamoDB, Lambda, or Aurora will help you get up to speed quickly, as will familiarity with Docker or Kubernetes in production environments. If you’ve worked with high-traffic or low-latency systems, or have experience with identity, access management, or security in CI/CD pipelines, that’s a plus. Why Sitoo We are forward thinkers. By turning curiosity into knowledge - and knowledge into continuous improvement - we break new ground and shape the future of retail. We believe in an inclusive culture where everyone feels like they belong. We support each other, win together, celebrate success together, and overcome challenges together. Today, we are close to 100 dedicated experts with a positive and solution-oriented mindset. Most importantly, we take care of each other, and we never forget to have fun. This is a hybrid role based in Stockholm or Gothenburg. Please note that we are currently unable to offer relocation support for this position, so you’ll need to hold a permanent residence permit in Sweden.

Responsibilities

Design, build, and operate backend services for the Merchant Lifecycle team to guide merchants through onboarding and growth. Ensure system reliability, scalability, and observability while managing the full end-to-end service lifecycle in AWS.