Senior Front-End Engineer (f/m/d)

🇵🇱 Warsaw, Poland
Posted 1 month ago
Expires June 9, 2026
Full TimeHybridEngineering

At Moss, we give finance professionals the power to automate their day-to-day and make forward-thinking decisions.

Our team and culture make us unique — we’re driven by impact and growth, where every one of us strives to learn and excel. Recognised by Sifted’s Rising 100 and LinkedIn's Top Startups we’re here to help propel your career and together, make Moss a lasting success.

We are looking for a Senior Frontend Engineer (f/m/d) for a variety tribes in Warsaw. The following tribes have open positions:

- Financial Services

- Growth

- Spend Management

You’ll collaborate closely with product, design, and backend engineers to deliver seamless and reliable solutions at scale.

Your responsibilities

Here's a bit more on what you can expect to be doing day-to-day:

- Frontend Development: Lead the development of the frontend application, ensuring it aligns with the approved designs and meets performance and usability standards. Proactively provide regular updates on work progress, achievements and challenges to product managers (PMs) and designers.

- Collaborative Planning: Partner with PMs and designers during project kick-offs to gain a comprehensive understanding of the overall vision, user needs, and goals. Provide valuable insights to refine UI/UX concepts and contribute to the planning of frontend development.

- Backend Collaboration: Collaborate closely with backend engineers to determine required APIs and backend functionality. Maintain clear communication channels to ensure smooth integration of frontend and backend components.

- Testing and Quality Assurance: Produce well tested and reliable code. Writing unit and functional (end-to-end) tests.

- Rollout and Performance Monitoring: Collaborate with product managers to devise efficient rollout strategies for new features. Monitor frontend performa...

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