Senior React Developer

Delys Technologies — United States · Posted ~3 hours ago

Senior Full-time

Skills

React TypeScript Component architecture State management Data fetching TanStack Query Zustand Redux Toolkit Cross-browser development Code review Mentoring JavaScript HTML

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Summary ✨ AI‑Generated

A Senior React Developer is sought as one of the first engineers on a long-term greenfield project. You will own project architecture, state management, and data-fetching patterns, build modern React applications with TypeScript, communicate directly with the client’s product team, and mentor mid-level engineers.

Highlights

Join a greenfield project with no legacy code or inherited technical debt, take ownership of architecture, work directly with the client, and mentor mid-level engineers while establishing clean engineering practices.

Description

We're a growing outsourcing startup starting a new long-term project for a client in US. Greenfield — no legacy code, no inherited technical debt. We're looking for a Senior React Developer to be one of the first engineers on it. What You Can Do: New product from scratch. Building a new long-term project for a client in US — no legacy code, no inherited technical debt.Architecture ownership. Setting up project structure, state management, and data-fetching patterns as one of the first engineers on the team.Direct work with the client. Communicating with the client's product team directly — no account managers in between.Mentoring and code review. Maintaining a clean code culture and helping mid-level engineers on the project grow.Expected Set Of Skills And Knowledge: Expert knowledge of React fundamentals, rendering behavior, and component architecture;Strong TypeScript;Experience with modern state and data-fetching patterns (TanStack Query, Zustand, Redux Toolkit);Solid cross-browser layout and semantics at a Senior level;Git and teamwork;Skill in conducting code review;Ability to work with requirements that aren't fully specced yet;English at a conversational level — you'll be on calls with the client;Experience with Next.js or Node.js would be a plus.If your experience lacks one of the criteria, send your CV anyway. We're flexible in our recruitment process. Applied Technology Stack: react 19, typescript, next.js, tanstack query, zustand, tailwind Tests: vitest, react-testing-library, playwright Versioning system: git Conditions: Competitive compensation, discussed individually based on your experience — B2B contract, paid in EUR or USDT;Fully remote, work from anywhere with at least 4 hours of overlap with CET;Flexible hours — we care about results and availability for calls, not about when you open your laptop;Long-term engagement — the project is scoped for 12+ months with an option to continue;One project, one client. We don't rotate engineers between projects.Why us: A growing outsourcing startup — small team, short decision chains, and real influence on how we build things;Professional development — a covered budget for courses and conferences, plus English classes with a teacher;Equipment — a MacBook or a budget for your own setup;Time off — 20 paid vacation days and paid sick leave;Direct client communication — you talk to the client's team yourself, which is the fastest way to grow past "just writing code".