Senior II Frontend Engineer
Limelight Health
Location HQ Employment Type Full time Department Engineering About Ethyca Ethyca is redefining trust in the age of AI. We build automated data privacy infrastructure that embeds governance directly into data, ensuring policy, consent, and control live wherever data moves. Our clients include The New York Times and the world’s most advanced organizations scaling AI responsibly. We’re on a mission to make trust, respect, and privacy a default feature of every tech stack. The Role As a Senior II Frontend Engineer at Ethyca, you will be a technical leader and force multiplier on the engineering team. You’ll architect and build sophisticated user interfaces that power Fides enabling enterprises to manage data governance, consent, and privacy rights at massive scale. This role demands deep technical expertise, design sensibility, and the ability to mentor others while shipping high-impact features that directly affect how the world’s largest organizations deploy AI responsibly. Core Responsibilities 1. Technical Leadership & Architecture Lead the design and implementation of major frontend components and systems, from complex data visualization dashboards to intuitive consent management interfaces to high-performance data grids Make critical decisions about component architecture, state management, and technology choices that will scale to support Fortune 500 customers managing billions of privacy requests Identify architectural risks and performance bottlenecks before they become issues; propose solutions that keep us ahead of customer needs Champion best practices in code quality, testing, accessibility, and documentation; raise the bar for the entire team 2. Build & Ship High-Impact Features Write clean, maintainable, well-tested code that serves millions of users and meets enterprise-grade reliability and performance standards Take projects from concept through design, implementation, testing, deployment, and iteration; driving outcomes, not just completing tasks Balance speed and excellence; ship rapidly while maintaining high standards for code quality, design polish, and user experience Leverage AI-assisted tools to accelerate development, improve code quality, and enhance productivity across the development lifecycle 3. Collaboration & Mentorship Provide technical guidance, code reviews, and architectural mentorship to help other engineers level up their skills Lead project planning sessions, write detailed technical specifications, and ensure alignment across engineering, product, and design Support the open source community through thoughtful PR reviews, issue triage, and helping users troubleshoot complex problems Work closely with Product, Design, and Customer Success to ensure technical solutions align with business goals and customer needs 4. Operational Excellence Design interfaces and components that handle enterprise workloads with demanding performance requirements, browser compatibility, and accessibility standards Use metrics, monitoring, and analytics to inform architectural choices and user experience improvements Take ownership of production systems; respond to incidents quickly and drive post-mortems that prevent future issues Identify inefficiencies in development workflows, tooling, and processes; propose and implement solutions What We Require 1. Technical Expertise 8+ years building production-grade web applications with modern frontend frameworks, with proven track record of delivering complex technical projects Expert-level proficiency with TypeScript, React, and modern frontend development; deep understanding of performance optimization, state management, and React ecosystem best practices Strong experience with Ant Design component library, building reusable component systems, and maintaining design system consistency Proficient with Storybook for component development and documentation; experienced in building and maintaining component libraries Passionate about automated testing; experienced with Jest for unit/integration testing and Cypress for end-to-end testing, maintaining high test coverage Comfortable with modern build tools (Webpack, Vite), bundling strategies, and frontend performance optimization 2. Design & UX Sensibility Strong eye for design and user experience; able to collaborate effectively with designers and push for better user experiences Experience with design tools (Figma, Sketch) and translating designs into pixel-perfect implementations Understanding of accessibility standards (WCAG 2.1) and building inclusive interfaces for all users Experience with data visualization libraries (D3.js, Recharts, Plotly) for building complex dashboards and analytics interfaces 3. Technical Leadership Proven ability to design component architectures for scale, maintainability, and reusability; make sound technical tradeoffs between complexity, time, and quality Tackle ambiguous, complex problems with innovative solutions; comfortable diving deep into unfamiliar codebases or technologies Track record of helping other engineers grow through code reviews, pairing, documentation, and technical guidance Drive initiatives from concept to completion without waiting to be told what to do; comfortable with autonomy and accountability 4. Collaboration & Communication Strong technical writing skills; produce clear documentation, technical specs, and design proposals that bring clarity to complex topics Thrive in distributed team environments; experienced working across time zones with async communication as default Self-directed and productive in remote settings; proactive about over-communicating and keeping stakeholders informed Comfortable with fast-paced environments where priorities shift; embrace rapid iteration and continuous delivery Differentiators 1. AI Integration Experience Hands-on experience with AI coding tools (GitHub Copilot, Cursor, etc.) to accelerate development and improve code quality Built AI-powered features or worked with ML models in production environments Experience integrating large language models into user interfaces or building AI-assisted user experiences 2. Enterprise Scale Experience Built and operated applications serving millions of users with stringent performance, accessibility, and browser compatibility requirements Understanding of enterprise security practices, authentication/authorization patterns, and compliance requirements (WCAG, SOC 2) Experience designing interfaces that serve multiple large enterprise customers with complex data visualization and workflow requirements 3. Startup/High-Growth Experience Thrived at Series A-C startups where you wore multiple hats and moved fast with limited resources Shipped products or major features from scratch that moved key business metrics Found creative solutions with constraints; comfortable with ambiguity and changing priorities 4. Additional Technical Depth Comfortable working across the stack; can contribute to backend codebases (Python, Node.js) when needed Experience with state management libraries (Redux, Zustand, Jotai) and complex application state patterns Track record of identifying and resolving performance bottlenecks in frontend applications Expert at bundle optimization, code splitting, lazy loading, and frontend performance tuning 5. Open Source & Community Experience contributing to or maintaining open source projects; understand community dynamics and collaboration workflows Demonstrate your technical skills through open source contributions, side projects, or technical writing Enjoy helping others troubleshoot issues, reviewing PRs, and engaging with developer communities Life at Ethyca We want every Ethycan to achieve their best outcomes, that’s why we celebrate individuals’ strengths, skills, and interests, from your first interview to your long term growth, rather than rely on traditional career ladders. Ethyca is a distributed team with headquarters in NYC and remote workers across the US. In keeping consistent with Ethyca’s values and culture, we believe employees ‘share the work’ as one team, and in-person work affords the opportunity for more creative outcomes. Therefore we encourage Deployment Strategists to work from our offices to foster excellence in innovation and outcomes for our clients. Preference will be given to candidates who are able to come into the office, located in midtown Manhattan, at least 2 days a week. We’re a Data Privacy and AI Governance company building a missing piece of the Internet’s infrastructure: the operating system for governance that empowers users and businesses to manage data respectfully. Every day, Ethycans tackle one of the world’s most challenging problems - how to make data and AI driven technology safer for humanity - and thinking about the future of human rights as society increasingly moves online. If this sounds intriguing and you’re excited to shape that future with us, we’d want to speak with you. Ethyca is committed to promoting a culture of diversity, equity, and inclusion and is proud to be an Equal Employment Opportunity and Affinitive Action employer. We believe that all Ethycans share the responsibility of upholding our commitment to these values and encourage candidates from a wide range of backgrounds, perspectives, and lived experiences to join us in solving the world’s hardest problems. Ethyca does not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. Please see the United States Department of Labor’s EEO poster, EEO poster supplement and Pay Transparency Notice for additional information. Compensation Range: TBD #J-18808-Ljbffr Limelight Health
$149k - $180k
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