Engineering Manager, Web PlatformWe are looking for a self-motivated engineering leader to lead a team of high-performing engineers responsible for Sigma's Web Platform.
The Web Platform team builds the frontend infrastructure and foundational platform used by more than 100 frontend engineers across Sigma. Its work includes frontend build systems, continuous integration and deployment, shared React component libraries, design systems, internationalization, accessibility, web performance, and the overall developer experience for teams building Sigma's user interface.
You will need to be comfortable working in a fast-paced environment, partnering closely with senior engineers, product and design leaders, and company founders.
What you will be doing- Lead, coach, and develop a team of frontend infrastructure and platform engineers, helping team members realize their potential and achieve their career development goals.
- Own the execution and delivery of the Web Platform roadmap, improving the foundational systems used by frontend engineers throughout Sigma.
- Guide the evolution of Sigma's frontend build systems, CI/CD pipelines, package publishing workflows, JavaScript and TypeScript tooling, and deployment infrastructure.
- Lead the development and adoption of Sigma's internal design system, including reusable React components and shared UI patterns used across the product.
- Support the development of component libraries and platform capabilities that allow AI agents and engineering teams to generate consistent, high-quality user interfaces.
- Improve frontend performance, including application load times, responsiveness, bundle efficiency, and the overall quality of the user experience.
- Help establish scalable approaches to accessibility, internationalization, localization, currencies, numerical formats, privacy, and regulatory requirements across Sigma's user interface.
- Collaborate with cross-functional groups, senior engineers, company founders, and the executive team to devise platform strategies that create measurable product and engineering impact.
- Own technical and organizational decision-making for the team while maintaining a low-ego, collaborative leadership style.
- Participate in architecture and implementation discussions while helping the team make pragmatic decisions that balance platform quality, developer productivity, and product delivery.
You- Love working with world-class engineers, product managers, designers, and architects to solve complex problems and create meaningful business impact.
- Have 5+ years of technical experience and 2+ years of people management experience.
- Have experience leading frontend, web infrastructure, frontend platform, developer experience, or design systems teams.
- Have a strong technical background in modern frontend engineering, including TypeScript, JavaScript, React, and the systems that support large-scale web application development.
- Understand frontend build systems, CI/CD, JavaScript bundling, package management and publishing, testing infrastructure, and modern web deployment workflows.
- Understand how shared component libraries and design systems improve product consistency, engineering velocity, accessibility, and maintainability.
- Care deeply about the daily experience of engineers and have a track record of improving developer productivity through better platforms, tooling, documentation, standards, or advocacy.
- Have hired, managed, and developed high-performing engineering teams across different levels of experience.
- Can establish credibility with senior technical contributors and effectively influence cross-functional stakeholders without relying solely on organizational authority.
- Bring strong judgment, maturity, and emotional intelligence to complex technical and interpersonal situations.
- Are opinionated and have strong product sense, while remaining open to new information and using data to make decisions and unblock the business.
- Are curious, love to learn, and enjoy digging into new technologies to determine when they can help solve technical challenges.
- Have demonstrated strong technical architecture and engineering skills, along with the ability to switch between technology paradigms.
- Have strong computer science fundamentals.
This role is based in San Francisco and follows Sigma's four-day in-office schedule. The base salary range for this position is $280k - $315k annually.
