Senior Frontend Engineer Jobs

Senior Frontend Engineer

Arize

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

175000.00 - 200000.00 USD / Year

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Job Description:

We’re looking for a Senior Frontend Engineer who cares deeply about how fast, stable, and intuitive complex AI systems feel in the browser. You’ll spend the vast majority of your time in React + TypeScript, owning frontend architecture, performance, and instrumentation. Our customers are high performing teams running agents and models in production. Your job is to make those workflows feel instant, predictable, and trustworthy.

Job Responsibility:

Spend most of your time building rich, performant frontend experiences in React + TypeScript (dashboards, traces, configuration flows, real-time views)
Collaborate with backend engineers on requirements, define API contracts, implement UI, and ship with metrics, logs, and alerts wired up
Design and implement patterns built for scale that work under real data and load
Lead frontend architecture decisions around routing, data fetching, caching, and client-side error handling
Use analytics tools, browser performance profilers, and Core Web Vitals to measure, debug, and continuously improve frontend performance
Build and iterate on visualizations for model performance, agent behavior, and real-time signals by paying attention to rendering performance and perceived latency
Drive UI resilience: robust loading states, optimistic updates where appropriate, pagination / virtualization, retry logic, and graceful degradation
Provide technical leadership: reviewing designs and PRs, mentoring engineers on frontend patterns and performance, and raising the bar on UX quality in code

Requirements:

5+ years of experience building user-facing web applications, including senior-level ownership of complex, high-impact projects
Fluent in React and TypeScript, and have helped shape or modernize a frontend stack
Practical experience with GraphQL (schemas, queries, mutations, performance considerations) and at least one GraphQL client
Worked on performance-sensitive or data-heavy products (dashboards, observability, dev tools, ML platforms, real-time UIs)
Use metrics and traces to guide performance work
Care about UX quality such as loading states, error states, keyboard shortcuts, micro-interaction, and express that care through clean abstractions and solid architecture
Energized by education

Nice to have:

Experience with data visualization libraries (D3, Vega, Plotly, visx, Recharts, etc.) and awareness of their performance tradeoffs
Experience with Python or Go services, especially in distributed or high-throughput environments
Experience setting up fine-grained product analytics and performance dashboards to track user journeys and frontend SLIs/SLOs

What we offer:

Competitive equity package
Comprehensive benefits package, including medical, dental, vision
401(k) plan
Unlimited paid time off
Generous parental leave plan
Additional support for mental health and wellness
WFH monthly stipend to pay for co-working spaces

Additional Information:

Job Posted:
December 20, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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