GR8 Tech

Senior Frontend Developer

GR8 Tech

full-time

Posted on:

Location Type: Remote

Location: United States

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Job Level

Senior

Tech Stack

JavaScriptJestReactReduxSCSSTypeScriptWebpack

About the role

  • Architect scalable and maintainable front-end solutions using React, modern JavaScript, and TypeScript.
  • Drive the adoption of efficient state management and modular build processes (e.g., Webpack, module federation).
  • Design resilient, failure-tolerant systems that account for load, performance, and web security (CORS, CSP, OWASP).
  • Ship complex, high-quality code to production in a timely manner to meet crucial business expectations.
  • Optimize web pages for maximum speed and scalability by deeply tuning the event loop and rendering steps (style, layout, paint, composite).
  • Validate code reliability by building out comprehensive testing infrastructure (Jest, React Testing Library, unit/integration testing).
  • Mentor junior developers and elevate team standards through thorough, constructive code reviews.
  • Partner with Product Managers, Designers, and Delivery Managers to align technical execution with overarching business goals.
  • Unblock the team by debugging deeply rooted technical issues and creating Proof of Concepts (POCs) for new technologies.

Requirements

  • 5+ years in a senior frontend engineering role with a strong track record of shipping complex, user-facing web applications.
  • Deep understanding of modern JavaScript (event loop, closures, async programming) and advanced TypeScript (generics, advanced types).
  • Strong command of React core concepts, component lifecycle, rendering optimization, and modern state managers (Redux, Zustand, etc.).
  • Expert knowledge of the browser rendering pipeline, DOM manipulation, semantic HTML5, and CSS preprocessors (Sass/Less).
  • Proficiency in configuring build tools (Webpack) and writing comprehensive automated tests.
  • The ability to clearly articulate complex architectural decisions and trade-offs to both technical and non-technical audiences.
  • Upper-Intermediate+ English and fluent Ukrainian.
Benefits
  • Paid maternity/paternity leave + monthly childcare allowance.
  • 20+ vacation days, unlimited sick leave, emergency time off.
  • Remote-first + tech support + coworking compensation.
  • Team events (online/offline/offsite).
  • Learning culture with internal courses + growth programs.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
ReactJavaScriptTypeScriptstate managementWebpackJestReact Testing LibraryCSS preprocessorsDOM manipulationunit testing
Soft Skills
mentoringcode reviewscommunicationproblem-solvingcollaboration