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Senior Frontend Developer Jobs in Seattle, WA (NOW HIRING)

AIM

Frontend Developer

Redmond, WA · On-site

$116K - $135K/yr

They are seeking a Senior Frontend Developer to design and build user interfaces that integrate human operators with autonomous systems, focusing on accessibility and performance. Responsibilities ...

CoreWeave

Senior Front End Web Developer

Bellevue, WA · On-site

Reporting to the Director of Website Strategy , the Senior Front-End Web Developer will be responsible for building, maintaining, and optimizing modern web experiences across our digital ecosystem.

Ravenna Software, Inc

Senior Frontend Engineer

Seattle, WA · On-site +1

$160K - $200K/yr

About the Role At Ravenna, we are looking for a Senior Frontend Engineer who cares deeply about ... Improve developer experience Help improve the frontend development environment through better ...

The AES Group

Front End Developer

Seattle, WA · Remote

$106K - $123K/yr

Position Title: Front End Developer Location: Remote - USA Experience Level ... Senior-Level Let's create our future together at The AES Group! About The AES Group: The AES Group ...

Adobe

Senior Front-end Engineer, AI

Seattle, WA

$139K - $191K/yr

If so, the Photoshop team is looking for a passionate Senior Web developer to join us in shaping the future of digital imaging on the Web. Work within a fast-paced, agile environment, partnering ...

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All JobsFrontend Developer JobsSenior Frontend Developer JobsSenior Frontend Developer Jobs in Seattle, WA

Senior Frontend Developer information

See Seattle, WA salary details

$44.4K

$151.5K

$206.7K

How much do senior frontend developer jobs pay per year?

As of Jul 26, 2026, the average yearly pay for senior frontend developer in Seattle, WA is $151,519.00, according to ZipRecruiter salary data. Most workers in this role earn between $130,900.00 and $171,900.00 per year, depending on experience, location, and employer.

What are Senior Frontend Developers?

Senior Frontend Developers are experienced software professionals who specialize in building and maintaining the user-facing parts of web applications. They work with technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue.js) to create responsive, interactive, and visually appealing interfaces. In addition to coding, they often lead frontend projects, mentor junior developers, and collaborate with designers and backend engineers to ensure seamless user experiences. Their role also includes optimizing web performance and adhering to best practices in accessibility and usability.

What are the key skills and qualifications needed to thrive as a Senior Frontend Developer, and why are they important?

To thrive as a Senior Frontend Developer, you need advanced proficiency in HTML, CSS, JavaScript, and modern frameworks like React or Angular, along with a relevant degree or equivalent experience. Familiarity with version control systems (such as Git), frontend build tools, testing libraries, and possibly certifications like AWS Certified Developer are typically important. Strong problem-solving abilities, effective communication, and a collaborative mindset are crucial soft skills for excelling in this role. These skills ensure the delivery of high-quality, scalable user interfaces that meet both technical and business requirements.

What are some common challenges Senior Frontend Developers face when leading projects, and how can they address them?

Senior Frontend Developers often encounter challenges such as aligning cross-functional teams, managing technical debt, and maintaining code quality while meeting deadlines. To address these, effective communication with designers, backend engineers, and product managers is crucial. Adopting best practices like code reviews, thorough documentation, and utilizing modern frameworks helps streamline collaboration and ensure maintainability. Additionally, mentoring junior developers and promoting knowledge sharing within the team can foster a more efficient and cohesive work environment.

What is the difference between Senior Frontend Developer vs Frontend Engineer?

AspectSenior Frontend DeveloperFrontend Engineer
Required CredentialsBachelor's in CS or related field, extensive experienceBachelor's in CS or related field, strong technical skills
Work EnvironmentCollaborates with designers, backend teams, project managersFocuses on building and optimizing frontend applications
Industry UsageCommon in tech companies, startups, agenciesUsed interchangeably with Senior Frontend Developer in many contexts
Search & Comparison IntentUnderstanding senior-level responsibilities and skillsClarifying role scope and technical focus

While both roles require strong frontend skills and similar educational backgrounds, a Senior Frontend Developer typically has more leadership responsibilities and project oversight. A Frontend Engineer may focus more on technical implementation and architecture. The terms are often used interchangeably, but understanding the nuances helps in job searches and role expectations.

What are the most commonly searched types of Frontend Developer jobs in Seattle, WA? The most popular types of Frontend Developer jobs in Seattle, WA are:
What are popular job titles related to Senior Frontend Developer jobs in Seattle, WA? For Senior Frontend Developer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Senior Frontend Developer jobs in Seattle, WA look for? The top searched job categories for Senior Frontend Developer jobs in Seattle, WA are:
What cities near Seattle, WA are hiring for Senior Frontend Developer jobs? Cities near Seattle, WA with the most Senior Frontend Developer job openings:
Senior Frontend Developer jobs near you
Infographic showing various Senior Frontend Developer job openings in Seattle, WA as of July 2026, with employment types broken down into 80% Full Time, 8% Part Time, 1% Temporary, and 11% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $151,519 per year, or $72.8 per hour.
Frontend Developer

Frontend Developer

AIM

Redmond, WA • On-site

$116K - $135K/yr

Full-time

Posted 24 days ago

Job description

Job Summary:
AIM is transforming heavy machinery into AI-powered fleets, enhancing safety and performance in challenging environments. They are seeking a Senior Frontend Developer to design and build user interfaces that integrate human operators with autonomous systems, focusing on accessibility and performance.
Responsibilities:
• As a Senior Software Engineer with a UI focus, you will design and build the two web surfaces that put a human in the loop with AIM's autonomous fleet: the safety-critical Operator UI and the multi-tenant portal — and the shared design system that powers both.
• Set the architectural direction for component APIs, accessibility, theming, versioning, deprecation paths, and migration tooling.
• Own the developer experience of every engineer at AIM who builds on top of the design system.
• Drive the patterns that make it easy to ship high-quality, accessible UI by default.
• Architect and implement the live 3D scene with Three.js / React Three Fiber / Drei — point clouds, terrain meshes with BVH acceleration, geofence editing, cut/fill visualization, machine overlays.
• Design state machines (XState), validation, and observability for safety-critical UI flows.
• Build teleop controls and integrate live video streaming with the rigor those interfaces demand.
• Drive the architecture for multi-tenant authorization, internationalization (including RTL), and real-time data.
• Design customer-facing experiences that hold up to the standards of best-in-class B2B software.
• Write clean, testable, maintainable TypeScript using modern frontend engineering principles.
• Drive improvements in code quality, accessibility, performance, reliability, and observability.
• Lead code reviews, design reviews, and architectural discussions.
• Work with TPMs, design, autonomy, controls, hardware, and field ops to ensure your UI works reliably on real machines and at real customer sites.
• Partner with FDEs to understand field realities — sun glare, gloves, dropped networks — and incorporate operational truth back into the codebase.
• Drive root-cause analysis and elimination of recurring defects.
• Mentor junior and mid-level engineers.
• Improve developer experience, CI/CD, test frameworks (Vitest, Cypress, Testing Library, vitest-axe, MSW), and local development tooling.
• Help define SWE excellence and engineering mechanisms across the org.
Qualifications:
Required:
• Bachelor's degree in Computer Science, Computer Engineering, Design, HCI, or equivalent hands-on experience.
• 5+ years of professional software engineering experience delivering production frontend systems.
• Deep expertise in TypeScript and React, including modern patterns (hooks, suspense, concurrent rendering).
• Experience with 3D web graphics: Three.js, React Three Fiber, Drei, WebGL, shaders, GLTF pipelines, BVH acceleration, or point-cloud rendering.
• Experience with real-time data and binary serialization: Protocol Buffers, gRPC-web, WebSockets, or high-frequency telemetry on the web.
• Experience with modern frontend tooling: Vite, npm workspaces (or pnpm/yarn workspaces), Storybook, modern testing stacks.
• Strong debugging skills using browser devtools, logs, telemetry, metrics, and tracing.
• Proven track record of delivering high-quality software independently and as part of cross-functional teams.
Preferred:
• Comfort working across the whole stack when needed.
• Experience with safety-critical or industrial UI: robotics, automotive, aerospace, medical, defense, energy — contexts where a bug has physical consequences.
• Experience with state machines (XState, statecharts) as a tool for safe UI flows, not as a buzzword.
• Experience with TanStack Router, TanStack Query, Zustand, Tailwind CSS v4, tailwind-variants, Floating UI, Mantine, or Visx.
• Experience with multi-tenant SaaS authorization (ReBAC/ABAC) and the UI patterns that make complex permissions comprehensible.
• Experience with frontend infrastructure: Docker, Kubernetes, CI/CD, micro-frontend architecture, OpenTelemetry, Sentry.
Company:
Scalable earthmoving is not optional. It’s required for our civilization to flourish. Founded in 2021, the company is headquartered in Bellevue, USA, with a team of 51-200 employees. The company is currently Growth Stage.

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