United Solutions
Lead Full-Stack Engineer
United SolutionsPoland14 hours ago
Full-timeEngineering, Information Technology

We're looking for a Lead Fullstack Engineer who’s passionate about building scalable web applications from front to back. You’ll work closely with product, design, and fellow engineers to build and maintain features across the stack.


Responsibilities:

  • Develop and maintain web applications using modern frameworks (React, Next.js, Node.js)
  • Design RESTful and GraphQL APIs
  • Integrate third-party APIs and services (e.g., payment gateways, authentication providers)
  • Write unit and integration tests to ensure code quality
  • Participate in code reviews and collaborate on technical decisions
  • Contribute to database design and performance optimization
  • Deploy and monitor apps using CI/CD pipelines and cloud platforms (e.g., AWS, Vercel)


Requirements:

  • 5+ years experience with JavaScript/TypeScript
  • Strong proficiency in React and Node.js
  • Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB)
  • Experience with microservices architecture
  • Familiarity with modern DevOps practices
  • Strong problem-solving and communication skills
  • Comfortable working in an agile team environment


Tech Stack:

  • NET 8
  • React 18 Typescript
  • PostgreSQL
  • MongoDB
  • RabbitMQ
  • Redis
  • Azure Blob Storage


Bonus Points:

  • Knowledge of Docker and containerization
  • Experience with testing frameworks like Jest, Vitest, or Cypress


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