Senior UI/Frontend Engineer (AI)
Department: Work with our Clients
Location: Cambridge , Boston , New Jersey, New York, SF
Employment Type: FullTime
Location: Cambridge, MA (Eastern Time / UTC -4)
Relocation package: Available
Start date: ASAP
Languages: English (required)
About the Role
Pragmatike is hiring on behalf of a fast-growing AI startup recognized as a Top 10 GenAI company by GTM Capital, founded by MIT CSAIL researchers.
We are searching for a Senior UI / Frontend Engineer with strong, hands-on experience building high-quality, high-performance user interfaces for complex, data-intensive AI products used by Fortune 500 customers.
This role is ideal for an engineer who cares deeply about UX, performance, and maintainable frontend architecture—someone who can own features end to end, collaborate closely with design and backend teams, and deliver polished, production-ready interfaces at scale.
What Youll Do
Build and maintain modern, production-grade web interfaces using React and TypeScript.
Translate product requirements and design systems into clean, scalable UI components.
Own complex frontend features end to end, from implementation to production support.
Optimize UI performance for large datasets, real-time updates, and high-usage dashboards.
Collaborate closely with product, design, and backend teams to ship user-facing features.
Establish frontend best practices around state management, testing, and code quality.
Improve frontend architecture, tooling, and developer experience.
Debug and resolve production UI issues across browsers and devices.
What Were Looking For
5+ years of experience as a Frontend / UI Engineer.
Strong proficiency with React and TypeScript in production environments.
Solid understanding of modern frontend architecture and component-based design.
Experience building responsive, accessible, and high-performance user interfaces.
Familiarity with frontend build tools, bundlers, and CI/CD workflows.
Ability to collaborate effectively with designers and backend engineers.
Comfortable owning features and shipping to production.
Bonus Points
Experience building data-heavy dashboards or real-time web applications.
Familiarity with modern state management solutions (Redux, Zustand, React Query).
Experience with design systems and component libraries.
Exposure to AI-driven or ML-powered products.
Startup experience or comfort working in fast-moving, ambiguous environments.
Why This Role Will Pivot Your Career
Research pedigree: MIT CSAIL founders with deep AI and systems expertise.
Customer impact: Build interfaces used by Fortune 500 clients.
Industry momentum: Alumni behind major acquisitions (MosaicML Databricks, Run:AI NVIDIA, W&B CoreWeave).
Funding & growth: Oversubscribed seed round, next funding planned for 2026.
Ownership: Lead UI features for mission-critical products.
Quality & craft: Work on frontend problems that prioritize performance and UX at scale.
Benefits
Competitive salary & equity options
Sign-on bonus
Health, Dental, and Vision
401(k)
Pragmatike is an Equal Opportunity Employer and is committed to providing equal employment opportunities to all applicants without discrimination. We recruit on behalf of our clients and prohibit discrimination and harassment based on race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.We are committed to a fair and inclusive hiring process. We process your personal data solely for recruitment purposes, in accordance with applicable privacy laws, and maintain reasonable safeguards to protect your information. Your data may be shared with our client(s) for hiring consideration, but will not be disclosed to third parties outside of the recruitment process.
There are more than 50,000 engineering jobs:
Subscribe to membership and unlock all jobs
Engineering Jobs
60,000+ jobs from 4,500+ well-funded companies
Updated Daily
New jobs are added every day as companies post them
Refined Search
Use filters like skill, location, etc to narrow results
Become a member
🥳🥳🥳 452 happy customers and counting...
Overall, over 80% of customers chose to renew their subscriptions after the initial sign-up.
To try it out
For active job seekers
For those who are passive looking
Cancel anytime
Frequently Asked Questions
- We prioritize job seekers as our customers, unlike bigger job sites, by charging a small fee to provide them with curated access to the best companies and up-to-date jobs. This focus allows us to deliver a more personalized and effective job search experience.
- We've got over 200,000 jobs from 15,000+ vetted companies. No fake or sleazy jobs here!
- We aggregate jobs from 15,000+ companies' career pages, so you can be sure that you're getting the most up-to-date and relevant jobs.
- We're the only job board *for* software engineers, *by* software engineers… in case you needed a reminder! We add thousands of new jobs daily and offer powerful search filters just for you. 🛠️
- Every single hour! We add 2,000-3,000 new jobs daily, so you'll always have fresh opportunities. 🚀
- Typically, job searches take 3-6 months. EchoJobs helps you spend more time applying and less time hunting. 🎯
- Check daily! We're always updating with new jobs. Set up job alerts for even quicker access. 📅
What Fellow Engineers Say