Senior React Developer

We are seeking a skilled Senior Frontend Developer with expertise in TypeScript, React, and modern JavaScript frameworks to build scalable, reusable, and high-performance web applications. The ideal candidate will also have experience working with Angular (for code reading) and legacy JavaScript frameworks like ES5 and jQuery.

Job Responsibilities

• Develop, test and deploy large scale distributed systems in the cloud
• Develop reusable, modular, and scalable React components
• Implement and manage state using Context API, Redux, Zustand, or similar libraries
• Optimize application performance using memoization, virtualization, and React.memo
• Manage server-state efficiently with React Query and integrate APIs using Axios or fetch
• Write unit tests using React Testing Library to ensure component reliability.
• Leverage ES6+ features like destructuring, async/await, and modern array methods for robust coding.
• Work with modern build tools such as Vite to streamline development and build processes.
• Read and analyze Angular code, utilizing its modular architecture, RxJS, and Observables.
• Contribute to legacy codebases using ES5 and jQuery, ensuring smooth transitions to modern practices.
• Implement advanced routing techniques and dynamic rendering with React Router.
• Optimize large DOM operations and implement animations in jQuery when required
• Triage bugs and deficiencies and fixing them
• Communicate and align with the team of developers, SDET and system engineers to deliver efficient and reliable code
• Collaborate with SDET engineers and help them efficient test suites to achieve 90%+ coverage
• Participate in application architecture design sessions and contribute to efficient, cost-effective and scalable services
• Work using Agile approaches - Sprint planning, Demos and Retrospectives
• Communicate progress, issues and risks to Delivery Lead, Tech Leads and peers
• Create and maintain clear and detailed documentation

Required skills and experience

• Proficiency in TypeScript and React , including React hooks and advanced routing
• Strong knowledge of ES6+ features and JavaScript fundamentals (closures, event loop, execution context).
• Experience with state management libraries (Context API, Redux, Zustand) and tools like React Query.
• Familiarity with Angular for code analysis and RxJS for reactive programming
• Solid understanding of ES5 concepts and jQuery for legacy code maintenance
• Experience with modern build tools and testing libraries (Vite, React Testing Library).
• Strong problem-solving and debugging skills, with an ability to optimize performance in large-scale applications.
• Solid understanding of full development cycle - development, testing, CI/CD and production rollouts
• Experience with containerized applications
• Excellent troubleshooting skills
• Excellent communication skills - both spoken and written English B2 or better
• Experience with REST APIs

Nice to have

• Experience with AngulaJS
• Experience building cloud-based solutions in AWS
• Experience with ASPX
• Experience with .NET 8
• AWS Certifications

What we offer

• # 1 Fair wage
• 100% remote position
• High hourly rate in USD
• Full-time, 40 hours per week contract
• Payments every 2 weeks
• Career development system - possibility to grow in a fast-developing Delivery Center in Central Europe
• Annual rate review
• # 2 Professional Development
• Work with innovative Silicon Valley companies and traditional American companies at the cutting edge of digital transformation
• We work with the newest technologies in AWS cloud and open-source tools like Jira, Confluence, Lucidchart, Slack etc
• We operate in an honest and competitive environment and we are one of AWS's top 10 key partners.
• The team willing to share its experience
• Paid AWS certifications: we provide training material, paid time off and examination itself
• Horizontal and vertical career growth - We keep growing and people keep growing with us