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June 29, 2026
Senior Fullstack Engineer (.NET / Node.js + React)
Senior • Hybrid
35,000 - 40,000 PLN
Warsaw, Poland
About the Role & Project
We are recruiting for a leading global alternative investment firm (Hedge Fund) that is modernizing capital markets. We are looking for a Senior Fullstack Engineer who bridges robust enterprise systems and cutting-edge cloud/AI solutions. You will join an agile tech team building high-performance platforms where your code directly impacts complex, global financial systems.
Tech Stack
- Backend: C# / .NET, Node.js
- Frontend: ReactJS (with occasional legacy AngularJS maintenance)
- Data: SQL Server, T-SQL
- Architecture: Cloud, Containers, Data Streaming
Key Responsibilities
- Design and scale server-side applications using Node.js and .NET.
- Build responsive user interfaces with React.
- Optimize high-throughput SQL Server stored procedures for financial data.
- Leverage streaming and cloud technologies to build resilient, distributed platforms.
- Participate in technical design reviews, architecture discussions, and mentoring.
Requirements
- 7+ years of professional full-stack development experience.
- Hands-on mastery of C#/.NET, Node.js, React, and T-SQL.
- Strong analytical skills and focus on clean code and solid application design.
- Excellent English skills for collaboration with international teams.
Bonus Points
- Experience or interest in integrating AI/ML models into enterprise applications.
- Background in FinTech, banking, or trading environments.
What We Offer
Financial & Future
- Private pension scheme.
- Life and travel insurance.
- Educational assistance reimbursement.
Health & Wellness
- Premium medical and dental package (with vision allowance).
- MultiSport card.
Culture & Perks
- Pre-funded lunch card.
- Employee Assistance Program.
- Volunteer opportunities.
- Active DEI affinity groups.
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