Senior Frontend Software Engineer

Senior Frontend Engineer

Location: Seattle, WA (On\-site / Hybrid)

We’re looking for an experienced Senior Frontend Engineer to own and lead the entire user experience layer of a mission\-critical enterprise platform used daily by cities, utilities, and infrastructure teams across North America. This is a high\-impact, high\-autonomy role where you’ll define the future of our web (and eventually mobile) frontend architecture from the ground up.

What You’ll Own

• Selecting and establishing the modern frontend stack and long\-term roadmap
  


• Designing and driving a scalable, shared component library that works across web and mobile
  


• Modernizing our frontend codebase while dramatically improving performance, reliability, and developer velocity
  


• Setting the quality bar: architecture, testing strategy, performance budgeting, accessibility, and engineering hygiene
  


• Mentoring and leveling up a growing team of frontend engineers
  


• Partnering closely with Product and executive leadership to translate customer needs into delightful, high\-performance experiences
  


• Measuring and continuously improving real\-world client\-side performance (load times, memory, offline behavior, etc.)
  

Requirements

What You Bring

• 8+ years of professional experience building complex web applications
  


• Mastery of JavaScript/TypeScript and deep expertise in at least one modern framework (React, Vue, Angular, or similar)
  


• Proven track record of owning frontend architecture decisions at scale
  


• Hands\-on experience with advanced browser APIs, especially IndexedDB, caching strategies, and offline\-first patterns
  


• Strong focus on measurable client\-side performance and data\-driven optimization
  


• Obsession with code quality: high test coverage, design systems, linting, CI/CD, and tooling that makes teams move faster
  


• Experience working directly with end users or customers to shape product direction
  


• Exceptional communication skills — you can explain technical trade\-offs to both engineers and non\-technical executives
  


• Demonstrated ability to thrive in fast\-paced, ambiguous environments and drive consensus across teams
  


• Customer\-obsessed mindset with a history of championing “delighter” features that users love
  

Nice\-to\-Haves

• Experience shipping desktop apps (e.g., Electron or similar)
  


• Background in API design or full\-stack development
  


• Familiarity with relational or NoSQL databases
  


• Proficiency in a compiled language (Java, C#, Go, Python, etc.)
  


• Hands\-on experience with major cloud platforms (AWS, Azure, GCP)
  

Who Thrives Here

You’re someone who gets excited about building foundational systems that will be used for the next decade. You care deeply about both pixel\-perfect experiences and rock\-solid engineering. You’re comfortable being the most senior frontend voice in the room while remaining humble, collaborative, and eager to mentor others.

If you’re ready to own the entire UX platform of a growing, product\-led company and set a new standard for what great frontend engineering looks like in enterprise software, we’d love to hear from you.

Apply with your resume and a brief note about a frontend modernization project you’re particularly proud of.

Benefits