Senior Backend Engineer Job at Moss (Tallinn)

Senior Backend Engineer

Moss

Location:
Estonia , Tallinn

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

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. Our Engineering teams are seeking Senior Backend Engineers (f/m/d) for our teams in Tallinn. The following teams have open positions: Sales Enablement; Pricing & Billing; Acquisition; Spend Management; Activation & Card Spend. Collaborating closely with designers, product managers and frontend engineers, you will bring innovative ideas to life, ensuring our product helps business automate and simplify everyday tasks with intuitive and efficient tools.

Job Responsibility:

Backend Development: Lead the development of the application, ensuring it aligns with the product requirements 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 backend development
Frontend Collaboration: Collaborate closely with frontend engineers to determine required APIs and frontend 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 performance and user feedback to identify areas for improvement and proactively address potential issues

Requirements:

Proven experience as a Backend Engineer, leading projects end-to-end to launch
Proficiency in Java development technologies (incl. Spring framework), as well as latest features and best practices such as microservices, message queue, alerting, reliability and feature flags
Understanding of development design patterns and techniques, incl. Rest API design principles
Hands-on experience with testing approaches and libraries (unit testing, integration testing)
You are fluent in English

Nice to have:

Pragmatic Tech Enthusiast
Delivery Focused
Collaborative Communicator
Inquisitive Mindset
Team Player

What we offer:

Top-of-market compensation package, including equity
Our vibrant offices are at the heart of our culture, where in-person time fuels collaboration and connection over weekly breakfasts and Friday demos
20 days “work from abroad”
600EUR/GBP Learning & Development Budget
other local benefits

Additional Information:

Job Posted:
February 18, 2026

Employment Type:

Fulltime

Work Type:

On-site work

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