UI & SDK Web Engineer

1 Month ago • All levels • UI/UX Design • $135,000 PA - $165,000 PA

Job Summary

Job Description

We are seeking a senior UI & SDK Web engineer for our Web Observability team. This role involves working on both our React + TypeScript dashboard UI and our OpenTelemetry-based Web RUM SDK. You will develop internal tools, developer-facing dashboards, and high-performance instrumentation libraries to help engineering teams improve web performance. Responsibilities include contributing to dashboard UI and SDKs, building performance monitoring tools, shaping SDK design, collaborating with product and engineering teams, incorporating customer feedback, and establishing best practices for code quality and testing.
Must have:
  • Deep proficiency in TypeScript
  • Strong experience with React
  • Familiarity with browser internals
  • Experience building client-side SDKs
  • Experience with testing tools (Jest, Playwright/Cypress)
  • Comfort debugging and optimizing
  • Excellent communication skills
  • Experience with Git and CI/CD
Good to have:
  • Experience with OpenTelemetry
  • Contributions to open-source projects
  • Familiarity with browser privacy
  • Experience designing developer APIs
  • Experience with data visualization libraries
  • Interest in performance profiling
Perks:
  • Equity in the form of options
  • Variety of benefits

Job Details

**About the Role**

We are looking for a senior UI & SDK Web engineer to join our Web Observability team, responsible for both our dashboard UI (React + TypeScript) and our Web RUM SDK built on OpenTelemetry. This is a hybrid role that bridges product development and observability infrastructure - ideal for someone who’s as comfortable designing frontend components as they are contributing to open-source SDKs.

You’ll work on internal tools, developer-facing dashboards, and high-performance instrumentation libraries—all aimed at helping the world’s best engineering teams understand and improve web performance. You’ll also have the opportunity to collaborate with the OpenTelemetry community and influence the future of web observability standards.

**What You’ll Do**

- Contribute to both the dashboard UI and Embrace Web SDKs used by our customers and internal teams
- Build performance monitoring and diagnostics tools for modern web applications
- Help shape our SDK design and upstream contributions to OpenTelemetry
- Collaborate with Product, Design, and Engineering teams to deliver user-friendly, data-rich experiences
- Partner with Customer Success to incorporate feedback from developers using our SDKs and dashboards
- Establish best practices for code quality, modularity, testing, and observability

**Basic Qualifications**

- Deep proficiency in TypeScript, including advanced type system features
- Strong experience with React and modern frontend architectures
- Familiarity with browser internals (e.g., performance APIs, Web Vitals, event loop behavior)
- Experience building or maintaining client-side SDKs or instrumentation tools
- Strong advocate for testing, with experience using tools like Jest and Playwright/Cypress
- Comfort debugging and optimizing both applications and libraries
- Excellent verbal and written communication skills
- Experience using Git and modern CI/CD workflows

**Preferred Qualifications**

- Experience with OpenTelemetry or other observability frameworks
- Contributions to open-source projects in the JavaScript/TypeScript ecosystem
- Familiarity with browser privacy, data collection consent, and sampling strategies
- Experience designing developer APIs or libraries for long-term stability
- Experience with data visualization libraries like Recharts and D3
- Interest in performance profiling, memory leak detection, and low-level browser behavior
- A love of Star Wars (or maybe Star Trek)

**Work Culture & Travel**

We are a remote-first company. This role is open to candidates located anywhere in the U.S. or Canada. We believe in regular in-person connection and expect travel for team offsites and collaboration to be approximately once per quarter.

The cash compensation for this role is in the $135k-165k range. In addition to base comp for this role, we offer equity in the form of options, a variety of benefits, and the opportunity to grow in an exciting and collaborative environment. Actual compensation may vary based on level, experience, and skillset as assessed in the interview process.

 

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