Mid-Level Frontend Developer
Remote | US Citizenship Required
Arsenal AI is looking for a mid-level Frontend Developer to join our growing engineering team. You'll help build and maintain user-facing applications, working closely with backend engineers, designers, and product managers to ship features that are fast, reliable, and easy to use.
What You'll Do
• Build and maintain responsive, component-based web applications
• Design and build reusable, well-documented UI components
• Translate designs and product requirements into clean, functional UI
• Integrate frontend applications with REST APIs
• Manage application state using NgRx (or equivalent) and RxJS/Observables
• Write unit tests with Jest to ensure code quality and reliability
• Collaborate with backend teams (Go, PostgreSQL, AWS) to define API contracts and troubleshoot integration issues
• Debug and resolve performance, usability, and cross-browser issues
• Contribute to technical discussions on architecture and tooling
What We're Looking For
• 2–4 years of professional frontend development experience
• Strong experience with Angular (or comparable frameworks like React or Vue)
• Solid understanding of TypeScript/JavaScript, HTML, and CSS
• Experience building reusable component libraries or design systems
• Experience with state management (NgRx or equivalent, e.g. Redux) and reactive programming with RxJS/Observables
• Experience consuming and integrating with REST APIs
• Familiarity with unit testing frameworks, particularly Jest
• Familiarity with build tools (Webpack, Vite, Angular CLI, or similar)
• Familiarity with version control (Git) and modern development workflows
• Good communication skills and comfort working in a collaborative, fast-paced environment
Nice to Have
• Familiarity with our backend stack: Go, PostgreSQL, and AWS cloud infrastructure
• Experience with Jasmine/Karma in addition to Jest
• Exposure to CI/CD pipelines
• Interest or experience in AI/ML-adjacent products
Tech Stack
Angular · TypeScript · NgRx · RxJS · Jest · Go · PostgreSQL · AWS