> Markdown version of [/jobs/ext/2732959-senior-front-end-developer](https://www.wearedevelopers.com/jobs/ext/2732959-senior-front-end-developer). 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 Front End Developer - **Company:** Lyntris Inc - **Location:** Tacoma, WA, United States - **Experience:** Expert - **Salary:** $130,861.0 - $160,650.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, HTML, JavaScript (Programming Language), Geographic Information Systems, Agile Methodology, Applications Architecture, Cascading Style Sheets (CSS), Software Quality, Code Review, Software Design Patterns, DevOps, ECMAScript, Github, Design of User Interfaces, Human-Computer Interaction, Software Engineering, Strategies of Testing, TypeScript, Web Applications, WebGL, Three.js, ReactJS, Rollup, Git, Webpack, React Redux, Asynchronous Programming, Software Coding, Software Version Control - **Published:** September 5, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9146080/senior-front-end-developer ## About the Role * At least 8+ years of professional front end / UI development experience (5+ with a STEM B.S.) including 5+ years of experience with React (other Javascript frameworks are a plus) * Able to develop organized, accessible, and performant apps using JavaScript, typescript, advanced CSS, and HTML * Solid understanding of application architecture, and concepts like asynchronous programming, closures, types, and ES6 * Familiarity with WebGL based libraries (e.g., ThreeJS, Deck.gl, Mapbox GL JS) * Experience with CSS in JS solutions such as Styled Components or Emotion * Proficient with version control systems (e.g., Git) and effective collaborative development workflows * Experience managing robust build & test tools and implementing workflow automations (e.g., Jest, Rollup, Webpack, Babel) * Design-minded attention to detail in user interface and user experience implementation * Must be a US Citizen and c urrentls holds an active Secret or Top Secret U.S. national security clearance or be able to receive and maintain one. To learn more about the security clearance process please access this link ., * Experience in managing, mentoring & coaching development teams in an Agile environment (e.g., leading scrum and agile project management tools & ceremonies) * Experience in DevOps or deploying web applications * Experience working in a secure facility or directly with mission operators * Experience auditing third party dependencies in React ecosystem * A portfolio of past projects with code samples or GitHub links * Geospatial information system (GIS) experience * Penchant for learning new technologies, balanced with strong pragmatic thinking * Experience with state management libraries like Redux or React Context API * Ability to travel as needed Physical Requirements * Prolonged periods sitting at a desk and working on a computer. * Must be able to lift up to 15 pounds at times. * This position may require the ability to travel up to 5% Clearance Requirements Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link . ## Description * Sit with system operators to get feedback on software and ideate on potential solutions * Push new requirements to development teams and rapidly prototype modifications to React-based web applications * Contribute to the development and maintenance of reusable component libraries and shared codebase * Write high-quality code, applying best practices, coding standards, and design patterns * Participate in the entire software development lifecycle, including requirement gathering, design, development, testing, and deployment, using an agile, iterative process * Participate in code reviews and ensure code quality through effective testing strategies * Collaborate with developers, designers, testers, project managers, product managers, and project sponsors * Communicate tasking estimation and progress regularly to a development lead and product owner through appropriate tools * Team with other developers, fostering a culture of continuous learning and professional growth * Performs other duties as assigned. ## Related Videos - [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) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Rendering Design Software in the Browser at Penpot](https://www.wearedevelopers.com/videos/1353-rendering-design-software-in-the-browser-at-penpot) - [The Pragmatic Architect: Balancing Necessity vs. Sufficiency in React Systems](https://www.wearedevelopers.com/videos/2101-the-pragmatic-architect-balancing-necessity-vs-sufficiency-in-react-systems) - [TresJS a new declarative ThreeJS as Vue components](https://www.wearedevelopers.com/videos/543-tresjs-a-new-declarative-threejs-as-vue-components) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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