> Markdown version of [/jobs/ext/2172685-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/2172685-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). --- # Frontend Engineer - **Company:** SPARTAN GLOBAL LLC - **Location:** Redwood City, CA, United States - **Experience:** Expert - **Salary:** $200,000.0 - $300,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software as a Service, Cloud Computing, Software Quality, Data Systems, Design of User Interfaces, Human-Computer Interaction, Node.Js, TypeScript, Web Applications, ReactJS, Backend, Git, AI Platforms, Information Technology, Production Code, Front End Software Development, Restful APIs, Es2015 - **Published:** August 21, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-frontend-engineer--b9ee350c-919a-4c87-8935-0f3ffe179cbb ## About the Role * 3-7 years of frontend engineering experience in production environments. * Expert-level React + TypeScript skills. * Proven experience building complex, data-heavy web applications. * Strong understanding of frontend architecture, performance, and state management. * Experience working closely with backend systems and APIs. * Ability to operate in high-speed, high-ambiguity environments. * Bachelor's or Master's in Computer Science or equivalent technical background. * Comfortable working onsite in Redwood City, 5 days/week. Preferred Qualifications * Experience at high-growth startups or top-tier product companies. * Experience building SaaS or developer-facing products. * Strong product intuition and customer empathy. * Experience working directly with founders or very small teams. * Full-stack exposure (Node.js or similar). Tech Stack * React * TypeScript * Node.js * Modern JavaScript (ES6+) * REST APIs * Cloud infrastructure * Git, Application Programming Interface (API), Architectural Services, Artificial Intelligence (AI), Computer Science, Customer Relations, Customer Support/Service, Engineering, Investment Capital, Machine Tool, Node.js, Performance Management, Process Engineering, Product Lifecycle, Product Shipments, Product/Service Launch, Production Systems, Quality Management, Reporting Dashboards, Sales Operations, Software as a Service (SaaS), Startup, Technical/Engineering Design, Time Management, User Interface/Experience (UI/UX), Venture Capital, Voice Applications ## Description We are hiring a Senior Frontend Engineer to own and scale the customer-facing surface area of our AI platform. This is a high-ownership, high-impact role. You will be responsible for building and evolving the core frontend systems that customers interact with daily-dashboards, real-time interfaces, prompt tooling, and AI workflow products. You will work directly with founders and customers, and your work will ship to production quickly and frequently. If you want slow-moving enterprise processes, this is not the role. If you want to build fast, own deeply, and see your work in production immediately, this is. Responsibilities * Own and ship production React applications end-to-end. * Build and scale frontend architecture using React + TypeScript. * Design and implement real-time dashboards, analytics systems, and AI tooling interfaces. * Work directly with backend engineers to integrate APIs and ship features fast. * Talk to customers, understand pain points, and turn feedback into shipped product. * Make architectural decisions and own frontend technical direction. * Write clean, high-performance, production-grade code. * Maintain high engineering velocity while keeping code quality high. * Participate in rapid iteration cycles and frequent releases., This is not a 9-5 role. It is a builder role in a company where speed matters. Interview Process 1. Intro Call 2. Technical Screen (React) 3. Deep Technical + System Design 4. Final Onsite ## Related Videos - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023)