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Senior Software Developer

Duett AS

3.8
9 reviews
Duett AS
Job Type   /   Job Level
Full-time   /   Junior Executive
Job Location
Warsaw, Mazowieckie, Poland
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About the Department

The Development Team at Duett includes members from across Norway and Poland. Despite being in different locations, we work closely together and continuously strive to improve our agile development practices. We collaborate closely with the QA team, UI/UX designers, support and product management.


Role Objective

We are hiring a Senior Full-Stack Software Developer for Taskline, a Norwegian SaaS product used by accounting firms to manage tasks, compliance (KYC/AML), quality, and billing. You will design, develop, and improve the product across the full software lifecycle together with our teams in Poland and Norway.


Key Responsibilities

  • Design, implement, test, deploy and maintain Taskline services
  • Participate in code reviews and continuous improvement
  • Work closely with Product, QA, and UI/UX
  • Share knowledge within and across teams
  • Contribute to high-quality development practices and documentation


Your Experience

  • A strong startup mindset with proactive ownership and a rapid, solution-oriented response to emerging challenges.
  • Proven experience owning features or services end-to-end, from design through deployment and monitoring in production.
  • Solid understanding of software security best practices (authentication/authorization, OWASP basics, secure data handling).
  • Experience with automated testing (unit, integration, and/or end-to-end) and a strong testing mindset.
  • Strong communication skills in English and the ability to collaborate effectively with distributed teams
  • 5+ years of professional software development experience


Strong experience with:

  • Node.js (Express.js / NestJS)
  • Angular (Angular Material)
  • Relational Databases (MySQL) and Redis
  • Good understanding of CI/CD, scalability, and secure API integrations
  • Experience working in Agile teams
  • Cloud experience - Azure is a strong advantage
  • Degree in Computer Science / Software Engineering


Bonus Skills

  • Experience with open banking, KYC/AML integrations
  • Hands-on experience using AI-assisted development tools or building small internal automations/agents is a plus.


Your Profile

You care about code quality, scalability, and delivering value. You are a proactive team player who learns fast and likes to improve how work gets done.


Why You'll Love This Position

  • Work on a growing SaaS product entering an exciting modernizationphase
  • Be part of Duett’s Development Competency Center in Warsaw with strong cross-border collaboration
  • Influence architecture and product direction as we expand automation and GenAI-supported development
  • Shape how Taskline evolves technically as we modernize the stack, introduce more automation, and increase the use of AI.
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