Senior Front-End Engineer

## About the Role The Senior Front-End Engineer is a hands-on technical leader responsible for front-end architecture, design system collaboration, and UI quality across high-impact digital products. This role leads a small team of front-end developers while remaining deeply involved in coding and technical decision-making. While front-end is your primary focus, you're comfortable working across the stack when needed—whether that's integrating APIs, understanding database constraints, or debugging backend issues that impact the UI. ## Responsibilities ### Build Production-Grade Applications - Develop modern, responsive web applications using React, Angular, TypeScript, or other modern front-end tooling e.g. Next.js - Adapt to client-specific frameworks, design systems, and technical constraints—every client environment is different, our senior engineers thrive helping shape custom platforms, tooling, and standards - Translate Figma designs into pixel-perfect, production-ready interfaces with obsessive attention to detail - Build reusable component libraries and design systems that scale across products and teams - Optimize for performance, accessibility, and cross-browser compatibility—ensuring every interface works flawlessly for all users - Write clean, maintainable code that other engineers can understand and extend ### Leverage AI-Assisted Development - Use AI coding tools (Cursor, Claude, GitHub Copilot) to accelerate development and increase code quality - Rapidly prototype features and proof-of-concepts that demonstrate technical feasibility to clients - Experiment with new AI-assisted workflows and share learnings with the team ### Collaborate & Elevate - Work closely with designers to ensure feasibility and push for the best possible user experience - Partner with product managers to scope work, identify technical risks, and provide accurate estimates - Mentor junior engineers through code reviews, pair programming, and technical guidance - Contribute to engineering standards and best practices that improve quality and velocity across all projects - Participate in technical discussions around architecture, tooling, and approach ### Deliver for Clients - Take ownership of features and deliverables from concept through production deployment - Communicate progress and technical tradeoffs clearly to both technical and non-technical stakeholders - Adapt to different client environments, codebases, and constraints—every engagement is different - Maintain professionalism and quality even under tight deadlines or shifting requirements ## Requirements ### Technical Skills - 7+ years of professional front-end development experience building complex web applications - Expert-level proficiency in React and the modern JavaScript ecosystem (TypeScript, Next.js, state management, hooks, etc.) - Strong experience with HTML, CSS, and responsive design—you understand the fundamentals deeply, not just the frameworks - Experience with Angular or strong willingness to learn it quickly—one of our key clients has invested heavily in Angular, including a custom platform and design system you'll work within - Adaptability across frameworks—you've worked in multiple front-end ecosystems and can context-switch effectively - Experience building component libraries and design systems from scratch or contributing to existing ones - Understanding of web performance optimization—code splitting, lazy loading, bundle size, lighthouse scores - Commitment to accessibility standards (WCAG) and inclusive design practices - Full-stack awareness—you've worked with APIs, understand backend constraints, and can debug across layers (bonus if you've written Node.js, Python, or similar) - Comfort with AI coding assistants (Cursor, Claude, Copilot)—or eagerness to master them quickly ### Experience & Mindset - Proven ability to deliver production applications on time and with high quality - Experience working in fast-paced, ambiguous environments where requirements evolve and priorities shift - Strong problem-solving skills—you can debug complex issues, propose solutions, and make pragmatic tradeoffs - Attention to detail without perfectionism—you know when "good enough" is the right call and when to push for excellence - Professional services experience is a plus—you understand what it means to work with external clients - Mentorship or leadership experience—you've helped other engineers grow, whether formally or informally ### Communication & Collaboration - Clear communicator who can explain technical concepts to non-technical stakeholders - Collaborative team player who values feedback and seeks out diverse perspectives - Proactive and self-directed—you don't wait to be told what to do; you identify problems and solve them - Comfortable with feedback and iteration—both giving and receiving code reviews constructively ## What We Offer - Competitive compensation with performance bonus upside - Healthcare benefits and 401(k) - High ownership and influence over technical direction - Hybrid delivery flexibility with client travel and team co-locations ## About the Company Thresh