We are seeking a Senior Full Stack Engineer to join a fast-growing SaaS company. The role will strengthen existing product teams, accelerate AI readiness initiatives, and support a company-wide rebrand implementation project.
Position: Senior Full Stack Engineer
Location: Central/Western Europe (CET/WET)
Contract: B2B
Responsibilities
- Deliver end-to-end features across backend and frontend, with emphasis on backend.
- Contribute to refactoring and modernizing systems as well as new feature delivery.
- Collaborate with product, design, and research teams in a distributed environment.
- Implement design updates as part of a rebranding initiative (typography, assets, UI components).
Must-Have Skills
- 8+ years in engineering, with proven SaaS/B2B experience.
- Strong in TypeScript, Node.js, React, PostgreSQL.
- Exposure to system design and scaling at enterprise or large project level.
- Ability to ship high-quality features fast.
- Experience migrating legacy systems or supporting multi-region infra is a plus.
Soft Skills
- Agentic mindset: outcome-driven problem solver, not bound by process.
- Excellent cross-team communication in distributed environments.
What we offer:
- Competitive salary and bonuses
- Flexible work hours
- Remote job
- Professional development opportunities
- Vibrant workplace culture
Why working at Diffco?
- Great experience and opportunity:
You will work on the fast-forward projects in Silicon Valley utilizing the latest technologies, methodologies, frameworks and approaches with the ability and time to learn and develop professionally.
- Professional and harmonious team of friends:
Our team is a second family, so you would enjoy spending the day working on nice projects with kind people with broad interests.
- A vast field for growth:
Learn continuously, expand your skills and demonstrate your professional level and ability to take more responsibility to grow.
- Great company culture:
We care about you and are interested in your personal professional goals, motivation and we build a perfect work/life balance.