Software Development Engineer III

About the role

The SDE III React Developer is a senior, hands-on engineering role responsible for designing and building high-quality, scalable, secure, and maintainable web applications using React, TypeScript, and the modern JavaScript ecosystem .

This role serves as a technical leader and engineering anchor for the team , combining deep hands-on development with strong technical leadership. The engineer will independently own complex features, drive technical design and implementation decisions, establish engineering patterns and best practices, and help the team deliver high-quality solutions faster and more predictably.

The ideal candidate brings deep expertise in React web development and the surrounding ecosystem , with experience working in a monorepo architecture containing multiple applications, shared libraries, reusable components, common dependencies, build tooling, testing frameworks, and development standards.

This individual will also be a dependable technical partner to the Engineering Manager , helping evaluate technical options, resolve complex engineering challenges, identify risks and dependencies early, and provide clear technical direction for the team.

In this role, you will:* Design, develop, test, and deliver complex production web applications using React and TypeScript .

• Remain deeply hands-on with development while serving as a technical leader for the engineering team.
• Own complex features and technical initiatives from design and implementation through testing, deployment, observability, and production support .
• Lead technical design discussions and make sound decisions around application architecture, component design, state management, data flows, API integration, performance, security, accessibility, and testing .
• Work effectively within a monorepo architecture , including multiple applications, shared components, shared libraries, utilities, configurations, dependencies, and common development tooling.
• Design and evolve reusable React components, shared libraries, common services, hooks, utilities, and engineering patterns while maintaining clear boundaries between applications and packages.
• Drive appropriate decisions around React architecture, component composition, state management, server-state management, routing, caching, error handling, and application lifecycle .
• Integrate frontend applications with RESTful APIs and backend services , ensuring reliable, secure, and performant application behavior.
• Drive solutions that balance delivery speed, maintainability, scalability, technical debt, developer experience, and long-term architecture .
• Identify technical blockers, architectural concerns, dependencies, and delivery risks early and actively drive them to resolution.
• Serve as a trusted technical partner to the Engineering Manager , providing technical recommendations and supporting important engineering and delivery decisions.
• Provide technical direction and mentorship to engineers through design reviews, code reviews, pairing, reusable patterns, troubleshooting, and knowledge sharing .
• Help translate ambiguous and complex requirements into clear technical designs and executable engineering work .
• Establish and reinforce engineering practices for unit testing, integration testing, automated testing, code quality, security, and regression prevention .
• Troubleshoot complex issues across application code, shared libraries, APIs, dependencies, builds, CI/CD pipelines, and production environments.
• Contribute to and improve CI/CD pipelines, automated quality gates, build processes, deployment processes, dependency management, and release practices .
• Improve developer experience, build performance, application performance, maintainability, and overall engineering efficiency across the monorepo.
• Collaborate closely with Product, UX, Architecture, API/backend engineering, SRE, QA, and other engineering teams to deliver business outcomes.
• Stay current with the evolving React, TypeScript, JavaScript, Node.js tooling, testing, build, and frontend engineering ecosystem and introduce improvements where they provide meaningful value.

What makes you a dream candidate?* Deep hands-on expertise in React, TypeScript, JavaScript, HTML, and CSS , with extensive experience building production-grade web applications.

• Expert understanding of React architecture , including component composition, hooks, rendering behavior, application lifecycle, reusable patterns, and maintainable application design.
• Strong understanding of the modern frontend ecosystem and the Node.js-based tooling that supports React development.
• Experience designing and maintaining large-scale React applications , beyond individual pages or UI components.
• Strong experience working with a monorepo architecture and shared packages or libraries using technologies such as Nx, Turborepo, pnpm/Yarn/npm workspaces, or equivalent tooling .
• Strong understanding of package boundaries, dependency management, shared-library architecture, dependency graphs, build tooling, and reusable application capabilities .
• Experience building and maintaining shared component libraries and design systems .
• Strong experience with modern state-management and server-state approaches such as Redux Toolkit, Zustand, TanStack Query, Context API, or equivalent solutions .
• Strong understanding of REST APIs, asynchronous data flows, authentication and authorization, error handling, and resilient frontend/backend integration .
• Strong understanding of frontend performance optimization , including rendering optimization, bundle size, code splitting, lazy loading, caching, and identifying client-side performance bottlenecks.
• Strong understanding of web accessibility and WCAG-aligned engineering practices .
• Strong knowledge of secure frontend development , dependency security, authentication flows, and protection of sensitive client-side data.
• Strong experience with automated testing using technologies such as Jest, React Testing Library, Playwright, Cypress, or equivalent tools .
• Experience with Git, pull-request workflows, CI/CD, automated quality gates, deployment pipelines, and modern software-delivery practices .
• Experience with cloud and observability platforms such as Azure, Application Insights, Splunk, or comparable technologies is preferred.
• Exceptional debugging and problem-solving ability , including the ability to diagnose problems spanning application code, APIs, shared libraries, third-party dependencies, build systems, and runtime environments.
• Demonstrated ability to take complex or ambiguous requirements and independently drive them from technical design through production implementation .
• Demonstrated ability to lead technical direction while remaining a strong hands-on contributor .
• Ability to evaluate competing technical approaches, clearly communicate trade-offs, and make pragmatic engineering decisions.
• Strong communication skills with the ability to work effectively with engineers, architects, Product, UX, SRE, and engineering leadership.
• Ability to influence technical direction without requiring formal authority and raise the technical capability of the broader team.

Experience* 5+ years of hands-on software engineering experience with significant production React and TypeScript development experience.

• Demonstrated experience as a senior engineer or technical lead delivering complex web applications.
• Experience owning solutions across the full software development lifecycle , including technical design, development, testing, deployment, monitoring, troubleshooting, and production support.
• Experience working with large-scale frontend codebases , preferably using a monorepo and shared-library architecture.
• Experience establishing and applying frontend architecture, reusable patterns, coding standards, testing strategies, and engineering best practices .
• Experience with modern testing, CI/CD, build, dependency-management, and deployment practices .
• Understanding of cloud platforms such as Microsoft Azure and modern observability practices is preferred.
• Bachelor’s degree in Computer Science, Engineering, a related technical discipline, or equivalent practical experience preferred.

What We Offer

Generous benefits package available on day one to include: 401K matching, bonding leave for new parents (12 weeks, 100% paid), tuition assistance, training, GM employee auto discount, community service pay and nine company holidays.

Our Culture

Our team members define and shape our culture — an environment that welcomes innovative ideas, fosters integrity, and creates a sense of community and belonging. Here we do more than work — we thrive.

Compensation

Competitive pay and bonus eligibility.

Work Life Balance

Hybrid work environment, Jan 1st - 3 Days in office (Tue-Thurs)