Senior Frontend Infrastructure Engineer

About the role

You will own the evolution of Uniswap's shared frontend infrastructure, including design systems, UI component libraries, and data-fetching layers, ensuring they serve every product team effectively. You will contribute directly to product and design engineering, bridging the gap between infrastructure and user experience to shape what users see and feel. In this role, you will build and contribute to AI-powered internal tools and automations that accelerate development and streamline engineering workflows. You will lead large-scale migrations, such as moving from Tamagui to Tailwind, with clear opinions and actionable plans for other teams to follow. You will drive performance improvements across all Uniswap applications, optimizing for speed, reliability, and developer ergonomics. You will maintain backend-for-frontend services that support multiple product lines, ensuring robust and scalable infrastructure. You will set the standard for code quality through rigorous PR reviews, thoughtful architecture documentation, and consistent mentorship of engineers across the organization.

Key facts

What you'll do

• Own and evolve Uniswap's shared frontend infrastructure, including design systems, UI component libraries, data-fetching layers (React Query), and notification systems across web and mobile.
• Contribute to product and design engineering work to maintain a strong connection to user experience and interface decisions.
• Build and contribute to AI-powered internal tools and automations, such as changelog builders, cherry-pick automations, CLI tools, and workflows that leverage LLMs like Claude to accelerate development.
• Lead large-scale migrations, for example Tamagui to Tailwind, with strong opinions on tooling choices and a clear plan that other teams can adopt.
• Build and improve release automation, CI/CD pipelines, and QA tooling to increase reliability and developer velocity.
• Drive performance improvements across all Uniswap applications to ensure fast and responsive user experiences.
• Maintain backend-for-frontend services that support multiple product teams with high availability and scalability.
• Produce high-quality, well-tested code and thoughtful architecture documentation; set the bar on pull request reviews and technical rigor.
• Mentor engineers across teams through code review, documentation, and establishing best practices where none currently exist.
• Collaborate closely with product managers, designers, and other engineers to align infrastructure roadmaps with business objectives.
• Evaluate and integrate emerging frontend tools and patterns to keep Uniswap at the forefront of web development.
• Balance long-term infrastructure initiatives with urgent product needs, delivering reliable results under tight deadlines.
• Ensure that all built solutions adhere to accessibility, security, and performance best practices.
• Participate in on-call rotations to support critical production issues and infrastructure incidents.
• Continuously measure and report on the health and adoption of shared infrastructure and tooling.

Requirements

• 5+ years of software engineering experience with a strong foundation in modern web and mobile development.
• Deep experience with both React and React Native, and comfort working across web and mobile from a single codebase.
• A strong track record of building developer tooling, design systems, or shared infrastructure with a product sensibility that keeps you connected to what users actually touch.
• Well-formed opinions on frontend architecture, styling systems, data-fetching patterns, and build tooling, and the ability to back them up with evidence and tradeoffs.
• Experience owning and delivering large, ambiguous projects end-to-end with minimal direction, navigating uncertainty to reach successful outcomes.
• Comfort with automation, including CI/CD, release engineering, and testing frameworks, to ensure reliable and repeatable processes.
• Eagerness to push the boundaries of AI-assisted development, not only using the tools but exploring what is newly possible for engineering workflows.
• A desire to keep up with modern best practices in web and mobile development, continuously learning and applying new techniques.
• Strong written and verbal communication skills to articulate complex technical concepts to both engineers and non-technical stakeholders.
• Ability to work independently and as part of a distributed team, managing priorities in a fast-paced environment.
• Commitment to writing clean, maintainable, and well-tested code that sets a standard for the broader engineering organization.
• Willingness to engage in technical debt remediation and refactoring efforts to sustain long-term code health.
• Openness to feedback and collaboration, using code reviews and design discussions to improve outcomes for the team and products.
• Understanding of version control workflows, particularly Git, and experience with monorepo development patterns.
• Familiarity with frontend build tools, bundlers, and optimization techniques to improve developer experience and application performance.

Nice to have

• Active open source contributions, especially to projects such as wagmi, viem, Next.js, React Router, TanStack, or similar frontend and tooling ecosystems.
• Experience building AI-powered developer tools, CLI tools, or internal automations using LLMs.
• Experience with Swift or Kotlin, or native mobile development, to better collaborate with mobile engineers.
• Familiarity with crypto features and concepts, though candidates with no crypto experience are still welcome and encouraged to apply.
• Experience at companies that value infrastructure, platform, and developer experience roles, such as Shopify, Vercel, Replit, Phantom, or Coinbase.
• A degree in computer science or a related technical field.
• A love for unicorns.

Practical notes

Full-time employment in New York is required. This role is not eligible for remote work or relocation assistance. All candidates must be able to commit to the full work schedule and location as stated.