> Markdown version of [/jobs/ext/4259131-senior-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/4259131-senior-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Engineer - **Company:** Grid, LLC - **Location:** Oakland, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Continuous Integration, Design of User Interfaces, Human-Computer Interaction, E2e Testing, Next.js, Requirements Management, Responsive Web Design, Systems Architecture, ReactJS, Backend, Git, Syntactically Awesome Style Sheets (SASS), Heroku, Information Technology, Figma, Front End Software Development, React Redux, JestJS, Restful APIs, Programming Languages - **Published:** October 31, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-frontend-engineer-oakland-ca--d61bd8e8-7caf-49ce-86de-f616eb9b67e9 ## About the Role User Interface/Experience (UI/UX), Startup, React.js, User Interface/Experience (UI/UX), User Interface Design, Web Design, Requirements Management, REST (Representational State Transfer), Application Programming Interface (API), Continuous Integration, * 5+ years of full-time experience as a Software Engineer * BS in Computer Science or commensurate experience * Extensive experience with NextJS * Proficient in JavaScript and TypeScript programming languages * Impeccable knowledge in ReactJS mechanics - hooks, reducers, contexts, props * Proven track record for integrating with RESTful APIs * Strong familiarity with Figma or similar collaborative design tools * Skilled at deep investigation solving bugs and UI issues * Writing unit and end-to-end tests are second nature to you ## Description * Build UI in ReactJS that is identical to the original Figma designs down to the margins and padding. * Implement Responsive Web Design UI that adapts to various screen sizes based on design specifications. * Integrate with RESTful APIs using custom hooks to manage state. * Write strong unit and end-to-end tests that are ran in a robust CI/CD pipeline ensuring quality of code. * Communicate with backend team to address any discrepancies in API spec outside of project manager. * Leverage browser dev tools to investigate performance issues and identify opportunities for optimization. * Work autonomously and make system architecture decisions that are resistant to change leveraging your experience. * Deploy changes to production to customers on a weekly cadence. * Own the frontend code base and make critical decisions that impact the integrity and resilience of the source code., * NextJS * JavaScript * ReactJS * Redux * Sass * JestJS * Figma * Heroku * Git