Full-time

Lead Developer with React

Posted by Cavendish Professionals • Helsinki, Uusimaa, Finland

📍 Helsinki, Uusimaa 🕒 February 19, 2026

About the Role

Our client works on very challenging and exciting projects and is looking for a Lead Developer + React)
Skills and Experience:
10+ years of back-end development experience.
Expertise in building distributed systems at scale using microservices and event-driven architectures.
Experience with and back-end integration patterns (API routes, server-side logic).
Knowledge of MongoDB (Document DB) including schema design, indexing, and performance optimization.
Deep familiarity with RESTful APIs and GraphQL, including security and query performance tuning.
Hands-on experience with Azure cloud services, especially Azure Service Bus and Event Hub.
Experience with GenAI tools integrated into SDLC workflows (e.g., code assist, documentation, analysis).
Strong understanding of non-functional requirements (NFRs) such as performance, reliability, and observability.
Proficient with CI/CD pipelines, GitHub workflows, and Trunk-Based Development in a monorepo setup (e.g....

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