About the role: Revalia is pioneering Human Data Trials — a new paradigm for accelerating translational medicine by linking donated human organs to cutting-edge research. Our platform provides biotech, pharma, and medtech innovators with unparalleled access to human biology at scale, reducing reliance on animal models and speeding the path to patients. We are seeking a highly skilled frontend engineer who doesn't just write code—but architects elegant solutions. You have immense hands-on experience with React and HTMX, and you understand when to use each for maximum impact. You're proficient with modern AI coding tools and use them strategically to enhance your productivity while maintaining high standards for code quality and security. You take pride in crafting performant, accessible user experiences and collaborating effectively with cross-functional teams. You're curious, adaptable, and excited about staying at the forefront of frontend innovation while maintaining strong fundamentals in core web technologies. As a Frontend Engineer, you will be responsible for architecting and implementing user-facing features of our web applications. You'll collaborate closely with product managers, designers, and backend engineers to deliver seamless user experiences that delight our customers. Your technical expertise in React and HTMX, combined with proficiency in AI coding tools, will enable you to write efficient, maintainable code at scale while staying at the forefront of frontend development practices. Location This position is fully remote with the expectation to travel quarterly to our office in New Haven, CT. We do not provide work visa sponsorship. This position is only open to candidates who are legally eligible to work in the United States without sponsorship. Culture Requirements - Role model the Revalia Bio’s Company Values of world class collaboration, cultivating deep trust, relentless adaptability, and to persevere with uncommon grit. - Display high levels of personal integrity and be able to express opinions or concerns directly and without triangulation, demonstrating honesty, openness, and a positive outlook at all times. - Seek to promote collaboration and be curious (and not judgmental) about opposing opinions. - Ability to adapt to changing business needs or to personal development opportunities. Able to fully embrace feedback and training to continuously improve performance and relationships. - Display determination and perseverance to problem solve, create, innovate, and develop. - Demonstrate commitment to own personal growth and development. Be “all -in” when participating in Company activities and programs related to personal and professional development and training. - Commitment to the growth and development of their team including participation in 360 reviews where requested. Soft Skill Requirements - Excellent communication and collaboration abilities, with a proven track record of working effectively in team environments - Strong problem-solving skills with the ability to break down complex requirements into manageable, testable solutions - Attention to detail and commitment to code quality and user experience excellence - Self-motivated with an intrinsic drive to learn and adapt to emerging technologies - Proactive in identifying and addressing technical debt and suggesting architectural improvements - Strong time management and ability to balance multiple priorities in a fast-paced environment - Professional work experience in DevOps, security, and cloud infrastructure – We use GitHub Actions, Docker, and AWS CDK extensively Technical Skill Requirements - Advanced proficiency in React.js, including hooks, context API, state management (Redux, Zustand, or similar), and modern React patterns - Strong expertise in HTMX, including dynamic content loading, form handling, and server-driven UI interactions - Mastery of core web technologies: HTML5, CSS3, and JavaScript (ES6+) - Proficiency with TypeScript for type-safe, maintainable code - Hands-on experience with AI coding tools and AI-assisted development workflows (mandatory) - Deep understanding of responsive design principles, cross-browser compatibility, and mobile-first development - Solid knowledge of version control systems, specifically Git, with collaborative workflows - Familiarity with build tools and bundlers (Webpack, Vite, or similar) - Experience with testing frameworks (Jest, Vitest, React Testing Library, or Cypress) - Knowledge of performance optimization techniques, including profiling, code splitting, and caching strategies - Understanding of accessibility standards (WCAG) and ability to implement accessible components Bonus Skills - Python proficiency for backend integration, data processing, or DevOps scripting - Experience with Next.js or other React meta-frameworks - Familiarity with CSS-in-JS solutions (Styled Components, Emotion, etc.) - Experience with GraphQL client libraries and schema-driven development - Knowledge of Web Components and micro-frontend architectures - Contribution to open-source projects related to frontend development - Experience with web performance monitoring tools (Lighthouse, WebPageTest, etc.) - Exposure to design systems and component library development - Background or exposure to medical systems/processes Responsibilities - Design and implement responsive, accessible user interfaces using React, ensuring optimal performance across devices and browsers - Build interactive components with React or HTMX for dynamic server-driven interactions and progressive enhancement - Integrate front-end components with RESTful APIs and backend services, ensuring seamless data flow and user interactions - Optimize application performance, including code splitting, lazy loading, and efficient state management to deliver fast-loading experiences - Write clean, scalable, and maintainable code following best practices, design patterns, and established coding standards - Collaborate effectively with cross-functional teams including designers, product managers, and backend engineers to refine requirements and deliver high-quality solutions - Conduct and participate in code reviews to ensure code quality, knowledge sharing, and adherence to team standards - Debug and troubleshoot front-end issues, utilizing browser developer tools and AI-assisted debugging techniques - Stay current with industry trends, emerging technologies, and best practices in frontend development - Use AI coding tools (e.g., Cursor, GitHub Copilot, ChatGPT) to enhance productivity, validate generated code, and accelerate development cycles Qualifications - 5+ years of professional experience in frontend development with a proven track record of shipping production-quality code Compensation, Benefits, and Diversity Commitment Our compensation structure includes a base and semi-annual bonus. Revalia Bio operates a growth culture focused on High Performance Teams and individual personal development. Along with monthly coaching, we provide extensive opportunities for professional development, training and mentoring. Revalia Bio provides comprehensive benefits including Health, Dental, Vision, Retirement, Disability, and a wellness program available on day one of employment. Full-time employees are eligible for up to 5 paid sick days and 23 PTO days per calendar year, excluding national holidays. Revalia Bio acknowledges and celebrates the diversity of our workforce, is dedicated to creating an equitable workplace, is committed to fostering an inclusive environment, and aims to create a workplace culture where every individual feels a sense of belonging. We are an equal opportunity employer and do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, gender, gender identity or expression, age, disability, or genetic makeup. For individuals with disabilities who would like to request accommodations, please email culture@revaliabio.com.

• Drive our product's look and feel - standardizing layouts and consistent UI patterns • Build performant UIs that handle complex data and operations elegantly • Deliver pixel-perfect designs that feel delightful to use • Increase development velocity through excellent component architecture and best practices • Own the frontend experience end-to-end

• Serve as a technical resource in semantic web development on cross-skilled clinical, content, and data teams as we develop meaningful data relationship experiences. • Design and write quality source code for data pipelines and services, including detailed documentation of design and implementation. • Implement and maintain the deployment of semantic services using containerization technologies (Docker) and cloud orchestration platforms like Amazon ECS. Contribute to and maintain automated deployment, testing, and integration activities utilizing robust CI/CD pipelines. • Work together with the product owner to break down features into actionable user stories and technical tasks. • Utilize existing taxonomies and ontologies applicable to our work. Contribute to the documentation and publishing of taxonomies/ontologies, supporting the core concepts of our domain. • Adhere to and support the established governance process for structured data, ensuring compliance across implementations.

• Architect and implement AI-assisted workflow building capabilities (workflow creation, editing, and suggestions) • Design systems that provide LLMs with the right context: workflow state, user intent, constraints, and history • Build tool-driven agent behaviour: calling internal tools, validating outputs, correcting mistakes, and recovering gracefully • Develop evaluation benchmarks and automated testing for AI output quality • Create fast iteration loops: experiment, measure, improve - shipping changes quickly with confidence • Collaborate closely with engineering, product, and design to deliver a polished Copilot experience • Stay current with advances in LLMs and AI developer tools and bring practical improvements into the product