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Senior Full Stack Developer
About On The Spot
About the team
Unity Aura is a large-scale content discovery platform used across 330M devices worldwide. Our mission is to help users find and access their favorite content in a simple and easy way.
About the role
You'll be part of a team that impacts many aspects of the product and works with customer-facing services.
Partnered alongside the best engineers in the industry and working on the coolest projects, the code and systems you’ll work on will be in production and used by millions of users all around the world.
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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
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 (expressJS, 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.
Nice to have (experience with)
- GitHub Actions
- Docker/Kubernetes
- Distributed event stores such as Kafka
- Tools for automation such as Playwright
- Monitoring tools such as Grafana, OpenTelemetry
Benefits
At On The Spot, we’re creating a workplace people would want to stay in:
supportive, well-organized, and fair in terms of conditions and benefits.
We’ll share more about our benefit package during the interviews. In the meantime, you can always check our Glassdoor reviews.
Join us
Position is open to candidates in Poland. You need to have a residence permit or another valid document allowing employment in Poland. Thank you!
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