Senior Frontend Platform Architect - Monorepo & AI

JobNimbus; Salt Lake City (UT); On-site; USD 140,000 - 190,000; Full time

Job summary

JobNimbus in Salt Lake City is seeking an experienced Frontend Architect to lead the architecture of our frontend platforms, drive monorepo migrations, and build shared AI-facing surfaces.

You will mentor engineers, set UI standards, and ensure performance and security while delivering resilient, modular components across teams.

This role emphasizes infrastructure over features, collaborating with cross-functional partners to raise the engineering bar and accelerate product delivery.

Qualifications

• 8+ years of software engineering experience with a heavy focus on complex, large-scale web applications and frontend architecture.
• Deep mastery of modern JavaScript/TypeScript, client-side frameworks (React), build tools, and modern web performance tuning.
• Proven track record of designing, building, and maintaining frontend platform infrastructure, shared component/design libraries, and monorepo architectures.
• Direct experience building shared UI surfaces, developer tools, or AI/agent interaction patterns (approval screens, workflow orchestrators, or interactive cards).
• Strong architectural perspective on micro-frontends, module federation, and legacy system migrations.
• Proven ability to lead technical strategy within a domain and influence cross-functional teams without direct authority.
• Comfort working in infrastructural roles where your “customers” are both end-users and your fellow software engineers.
• Track record of mentoring engineers, establishing UI standards, and raising the engineering bar across an organization.
• Strong knowledge of web performance metrics, front-end security practices, automated testing (unit, integration, e2e), and CI/CD pipelines for web applications.
• Experience managing and designing shared state, complex client workflows, and resilient component APIs.

Responsibilities

• Own the frontend technical strategy on the Platform team, focusing strictly on core foundational work, infrastructure, and architectural excellence rather than feature-factory output.
• Drive the completion of our monorepo migration, transitioning remaining legacy surfaces (16 of 46) to modern, scalable frontend standards.
• Architect and build the shared agent surfaces, approval screens, and underlying framework that every team’s AI capabilities will run through.
• Evolve and maintain module and design-system infrastructure, ensuring consistency, high performance, and effortless reusability for all product engineers.
• Act as the frontend expert on the platform team, guiding decisions around system performance, UI architecture, build tooling, and state management.
• Write production-grade, highly resilient frontend code on the most complex and critical shared components of the platform.
• Break down architectural friction across teams, unblocking product units by creating clean module boundaries and shared primitives.
• Raise the bar on frontend quality, accessibility, testing standards, and web performance metrics across the entire engineering organization.
• Mentor engineers across teams in modern web architecture, component design, and sustainable software practices.
• Leverage AI-assisted tools to improve development velocity, streamline repetitive infrastructure work, and enhance overall code quality.

Skills

Frontend architecture

React

JavaScript/TypeScript

Monorepo architectures

UI platforms

AI/agent surfaces

Performance engineering

CI/CD pipelines

Build tooling

Tools

Nx

Turborepo

Job description

JobNimbus in Salt Lake City is seeking an experienced Frontend Architect to lead the architecture of our frontend platforms, drive monorepo migrations, and build shared AI-facing surfaces.

You will mentor engineers, set UI standards, and ensure performance and security while delivering resilient, modular components across teams.

This role emphasizes infrastructure over features, collaborating with cross-functional partners to raise the engineering bar and accelerate product delivery.