SeniorFull TimeEN
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?
As a Software Engineer at Sitoo, you’ll join a small, autonomous team building and evolving our next-generation platform. This is a fullstack role but with a strong backend focus, where you’ll work across the stack but spend most of your time designing, building, and improving backend services.
You won’t just write code and hand it over – you take ownership of the full lifecycle: design, development, deployment, operation, and continuous improvement. At the same time, you’ll contribute to frontend applications when needed, ensuring a seamless and high-quality user experience.
A big part of your work will involve making thoughtful technical decisions, improving system architecture, and ensuring that what we build is scalable, reliable, and maintainable over time.
The Payments & Customer Engagement team develops, maintains, and operates Sitoo’s payment and customer engagement integrations. We connect the POS platform with CRM and loyalty systems to enable seamless customer recognition, personalized interactions, and smarter in-store experiences. By ensuring reliable data flows between systems, we help retailers create more connected customer journeys, strengthen loyalty programs, and deliver a more consistent user-experience.
In this role, you will design, build, and operate backend services with a strong focus on performance, scalability, and reliability. While your main focus is backend, you’ll also contribute to frontend development when needed to ensure a seamless user experience.
You’ll take end-to-end ownership of Sitoo’s web products, improving both functionality and technical foundations over time. Working in AWS, you’ll help evolve existing infrastructure and keep a close eye on system health through monitoring, alerts, and observability.
You’ll collaborate closely with your team to improve processes and tooling, write tests to maintain high quality, and contribute to CI/CD pipelines and engineering best practices.
Backend: Node.js (core focus)
Frontend: React, TypeScript
Cloud: AWS
Architectures: APIs, event-driven systems, distributed systems
Practices: CI/CD, automated testing, Infrastructure as Code
Strong experience in backend development with Node.js
Solid experience building and maintaining scalable cloud services
Experience working across the stack (frontend + backend), with a backend-heavy focus
Good understanding of distributed systems and asynchronous architectures
Experience with modern CI/CD practices and cloud platforms (AWS, Azure, or GCP)
Ability to take ownership of systems in production, including monitoring and improving them over time
A pragmatic, product-oriented mindset with focus on real user value
Fluent in English, both written and spoken
Experience with payments solutions
Experience with AWS services such as SQS, SNS, DynamoDB, Lambda, or Aurora
Familiarity with Docker or Kubernetes
Experience with observability and incident handling in production systems
Familiarity with AI-assisted development tools like GitHub Copilot or Cursor
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.
