GR8 Tech

Launch, grow, or upgrade your iGaming business with GR8 Tech high-performance Sportsbook and iGaming platform.

Senior Frontend Developer

Frontend EngineerSoftware EngineerFull TimeRemoteTeam 501-1,000H1B No SponsorCompany SiteLinkedIn

Location

United States

Posted

4 days ago

Salary

Not specified

Bachelor Degree5 yrs expEnglishUkrainianJava ScriptJestReactReduxSCSSType ScriptWebpack

Job Description

• 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.

Job 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.

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