Senior Full Stack Developer for Aura by Unity, building high-performance services with React.js and Node.js. Collaborate with teams on innovative solutions in a dynamic, agile environment.
Responsibilities
Work as part of a full-stack agile team, working at high velocity, and delivering great quality on a daily basis
Architect, develop, and maintain high-performance services with React.js and Node.js
Work with the UX team to translate a design into reusable and accessible components using our existing design system
Design, implement, and innovate features using cutting-edge technologies
Be responsible for developing and designing major features as well as building new services from scratch
Work closely with the product, architects, DevOps, and automation teams
Develop & implement tests to ensure the quality, performance & scalability of our products
Requirements
+5 years of experience with web development in React
+5 years of experience with backend development in Node.js
Upper-Intermediate English level
Practical experience in the design and architecture of large-scale systems (front-end/back-end)
Experience with React.js and State Management (Mobx or Redux, context, hooks, SASS, webpack)
Working with design tools (Figma/Zeplin/etc.)
Working knowledge of databases (MySQL, MemSQL, Redis)
Awareness of microservice architectures
Experience with cloud solutions (AWS preferred)
Experience with Node.js (express.js, streams, ORMs, Unit testing, logs)
Proficient in using AI tools (GitHub Copilot, Claude, etc.) and have a deeper experience with common features like MCP servers, instructions with MD files, etc.
Benefits
Work in a highly professional team. Informal and friendly atmosphere in the team
Paid vacation — 20 business days per year, 100% sick leave payment
Equipment provision
Partially compensated educational costs (for courses, certifications, professional events, etc.)
Legal and Accounting support in Poland
Ability to work from our comfortable downtown office in Warsaw
5 sick days per year
Medical insurance (after the end of the probationary period)
English and Polish classes 2 times a week (online)
Bright and memorable corporate life: corporate parties, gifts to employees on significant dates.
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