[8AI] Senior Frontend Engineer (React + Typescript)

Job Description

Who We Are: At Nicoya Health, we're on a mission to use AI to improve health results with data-driven

solutions. We've developed a proprietary health data analytics and agents platform that empowers

healthcare and longevity professionals, researchers, corporate wellness programs, and top athletes to

transform from reactive to proactive healthcare. Our innovative software integrates advanced wearables,

diagnostic data, labs, and EHRs, utilizing powerful AI-based analytics to create customizable tools across

diverse markets — from integrative health and concierge medicine to clinical research, personal

performance and longevity. We help modern healthcare practices turn overwhelming data streams into

clear, meaningful intelligence that improves patient outcomes and drives practice efficiency.

Who You Are: You are a passionate and driven Front End Engineer who loves building high-quality,

user-friendly web applications. You care about UI craftsmanship, performance, and clean, maintainable

code. You enjoy collaborating closely with product designers and cross-functional teams to turn designs

into polished, accessible, responsive interfaces. You take ownership, solve problems proactively, and

consistently deliver reliable results.

What You Will Do: As a Front End Engineer at Nicoya Health, you will build and improve web

applications used by non-technical users, including doctors and end consumers. Your main focus will be

implementing and evolving the front-end user experience in React, ensuring a smoot

Qualifications

Core Responsibilities:

• Build and maintain responsive, accessible user interfaces using React and TypeScript.

• Implement UI based on designs and specifications, collaborating closely with product designers

and product managers.

• Develop reusable UI components and contribute to consistent UI patterns across the product

(experience with design systems/component libraries is a plus).

• Integrate front-end features with back-end services and REST APIs to ensure reliable application

behavior (including loading, error, and empty states).

• Ensure front-end quality through testing, debugging, and troubleshooting (experience with

automated testing is a plus).

• Optimize front-end performance and ensure cross-browser and cross-device compatibility.

• Follow best practices for security and privacy when handling user data.

• Collaborate with back-end engineers, QA, and product to ship improvements iteratively.

What We Need from You:

• BS/MS in Software Engineering, Computer Science, or a related Engineering field.

• 7+ years of industry experience as a Front End Engineer building web applications.

• Strong proficiency in front-end technologies (HTML5, CSS, JavaScript, TypeScript, React).

• Solid understanding of component architecture, maintainable front-end patterns, and working

with APIs.

• Experience integrating with REST APIs and handling real-world edge cases.

• Knowledge of front-end performance optimization techniques and best practices.

• Familiarity with modern front end build tools and workflows (e.g., Vite, Webpack; experience

with modern tooling is a plus).• Familiarity with version control systems like Git.

• Strong attention to detail, ownership mindset, and ability to collaborate in a cross-functional

team.

• Creativity in problem-solving, along with strong collaboration and communication skills.

Additional Information

The primarily use React and Deep use and understanding of AI