Position: Full-Stack Engineer (React + Go/MERN)
Location: Remote/Hybrid (overlap with UTC+2/3)
Team: Frontend, QA, Product, Security, DevOps/SRE
Domain: Fintech / custody platform (APIs, workflows, auditability)
About us
We build a security-first platform for digital asset operations. Our product is API-driven, highly auditable, and engineered for reliability. We're looking for a senior full-stack engineer who can own features end-to-end: from clean domain modeling in Go or Node.js to a crisp React UI.
What you'll do
- Build end-to-end product features across Go and Node.js/Express backends and React frontend
- AI-assisted development: use Cursor/Copilot/ClaudeCode (or similar) daily to accelerate delivery, refactoring, and test generation—while verifying outputs and keeping code clean
- Design backend services using DDD patterns (bounded contexts, aggregates, domain events), clean layering, and pragmatic architecture
- Implement data models and migrations across PostgreSQL and MongoDB, using GORM, Mongoose, or raw queries where appropriate
- Build and maintain REST APIs (and webhooks/event-driven workflows where needed) in both Go and Node.js/Express
- Implement frontend flows in React (TypeScript): dashboards, admin workflows, status lifecycles, audit views
- Ensure correctness and observability: structured logging, metrics, tracing, and production-ready error handling
- Contribute to security fundamentals: RBAC, least-privilege access, safe secrets handling, and audit trails
- Own quality: unit/integration tests, contract tests, and CI pipelines
Must-have experience
- 5+ years building production systems with Go and/or the MERN stack (MongoDB, Express, React, Node.js), plus solid React experience
- Strong backend fundamentals: concurrency, APIs, reliability, debugging
- Hands-on with DDD (not just buzzwords): can model domains and keep boundaries clean
