Founding Full Stack Engineer (Frontend + UX Focus)HartleyCo • Fremont, California, United States
Founding Full Stack Engineer (Frontend + UX Focus)
HartleyCo • Fremont, California, United States
job_description.job_card.variable_days_ago
serp_jobs.job_preview.job_type
- serp_jobs.job_card.full_time
job_description.job_card.job_descriptionStrong front end engineering with sharp product taste. Someone who cares about clean UI, clear UX flows, and fast interactions. Ability to work full stack when needed, but happiest owning the product surface. Comfortable working on-site with founders, shipping quickly, and iterating with customers. Opinionated about design details and code quality. Experience with React, TypeScript, Next.js, Tailwind. Exposure to AI / voice tooling a bonus, not required. Prior early-stage or YC / VC-backed startup experience. Examples of beautiful or highly polished UI you’ve built.
Founding Full Stack Engineer (Frontend + UX Focus)
Location : San Francisco (on-site)
We’re helping a YC-backed, seed-stage startup hire a Founding Engineer who can take full ownership of the product’s look, feel, and overall experience. The company builds the simulation and evaluation layer for voice and text AI agents, used by both fast-growing startups and large enterprises.
This role is full stack, but the centre of gravity is very much the frontend. You’ll be the person who makes a complex AI platform feel simple, fast, and genuinely enjoyable to use.
What You’ll Own
- End-to-end ownership of core UI : dashboards, debugging tools, evaluation workflows.
- Turning rough ideas into product : sketching, prototyping and shipping quickly.
- Driving UX quality across the product : layout, interaction, states, polish.
- Building intuitive interfaces over real-time systems, large datasets, and AI outputs.
- Dipping into the backend (Python / FastAPI, Supabase, AWS) to unblock yourself and shape APIs.
What They’re Looking For
Nice-to-Haves
If you want to define the visual and interactive identity of a high-velocity AI product and sit at the heart of a tiny founding team, this is the one.
serp_jobs.job_alerts.create_a_job
Founding Engineer • Fremont, California, United States
Job_description.internal_linking.related_jobs
The ideal candidate will play a key role implementing, testing, scaling, and maintaining our frontend applications.They care deeply about clean, intuitive interfaces that make complex workflows sim...serp_jobs.internal_linking.show_more
AI to work in their day-to-day operations.In few months, we’ve moved from vision to reality—building products our clients truly love.
As part of our fast-growing and highly ambitious team, you won't...serp_jobs.internal_linking.show_more
At Viven, we are pioneering the next generation of AI-powered Digital Twin solutions that help enterprises unlock the power of organizational intelligence.
Our platform integrates data across ecosys...serp_jobs.internal_linking.show_more
UMATR are supporting an early-stage AI startup on a mission to help growing organisations stay aligned and efficient as they scale.
Our product acts as an intelligent teammate that understands a com...serp_jobs.internal_linking.show_more
A global technology leader in California is seeking a Senior Frontend Engineer to develop scalable web applications.In this role, you will lead the design of modular frontend architectures and ensu...serp_jobs.internal_linking.show_more
Customer Success Engineer - Early-Stage Start-Up Opportunity Location : Santa Clara, CA Are you ready to join an exciting early-stage start-up that detects active data breaches and protects business...serp_jobs.internal_linking.show_more
Hybrid Remote Opportunity - YCombinator Generative AI Startup Growing Fast!.This Jobot Job is hosted by : Caitlyn Hardy.Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending u...serp_jobs.internal_linking.show_more Full Remote / Well-Funded Web3 Startup Decentralizing the Future / Competitive Salary + Generous Equity + Growth.This Jobot Job is hosted by : Caitlyn Hardy.
Are you a fit? Easy Apply now by clicking...serp_jobs.internal_linking.show_more 
The Workday Informatics Analyst II - The Workday Informatics Analyst plays a pivotal role in driving adoption and maximizing the value of Workday Human Capital Management (HCM) and its related modu...serp_jobs.internal_linking.show_more
Cognizant is a leading provider IT and BPO services, providing critical initiatives to a variety of global clients.The Hardware Operations team is a part of a high profile client project that provi...serp_jobs.internal_linking.show_more
Our client is the single source of truth for headcount that aligns finance teams, talent teams, people / HR teams, and hiring leaders.
Connected with your HCM, ATS, and financial planning system, Ca...serp_jobs.internal_linking.show_more
Founding Full Stack Engineer (Frontend + UX Focus).Were helping a YC-backed, seed-stage startup hire a Founding Engineer who can take full ownership of the products look, feel, and overall experien...serp_jobs.internal_linking.show_more
Software Engineer AI & Full Stack (San Francisco, CA).Full-Time | 🧠 14+ Years Experience | 💰 $150,000- 210,000.Were building self-improving software AI that continuously creates, tests, and enh...serp_jobs.internal_linking.show_more
Join a fast-growing HealthTech company building an.This is a rare opportunity to contribute to technology that directly improves care outcomes and transforms how health plans and providers make dec...serp_jobs.internal_linking.show_more
Full Stack Software Engineer (React / Node.Hybrid | Remote-friendly | San Francisco Bay Area.Base : $200,000$300,000 + meaningful equity + top-tier benefits.
Were a fast-growing AI / ML company buildin...serp_jobs.internal_linking.show_more
San Jose, CA with development centers in India at multiple locations.We are a leading professional services company offering a unique product mix that extends into Technology, Consulting, Digital a...serp_jobs.internal_linking.show_more
Please read in full : As a founding engineer, youll work across our entire stack to build and scale our contextual advertising network for AI tools.
Youll have significant influence over technical di...serp_jobs.internal_linking.show_more
San Francisco, CA (On-site, SOMA).Visa sponsorship not available.We are supporting a client seeking an experienced.This role is ideal for a product-focused engineer with strong craftsmanship, atten...serp_jobs.internal_linking.show_more
Founding Frontend Engineer (AI, Security) (Hayward)
CyberMind Connect • Hayward, CA, US
serp_jobs.job_card.full_time +1
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Senior Frontend Engineer
Newcode.ai • Palo Alto, CA, US
serp_jobs.job_card.full_time
serp_jobs.filters_job_card.quick_apply
serp_jobs.last_updated.last_updated_30
Software Engineer, Frontend (Santa Clara)
Viven • Santa Clara, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Frontend Engineer
UMATR • Fremont, California, United States
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_hours • serp_jobs.job_card.promoted • serp_jobs.job_card.new
Senior Frontend Engineer : React, Micro‑Frontends
Samsung Research America • Mountain View, CA, United States
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Customer Success Engineer - Early-Stage Start-Up Opportunity
US Main • Santa Clara, CA, US
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted
Full Stack Engineer
Jobot • Mountain View, CA, US
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted
Senior Frontend Developer
Jobot • Los Altos, CA, US
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted
Informatics Analyst II - Workday - Informatics Clinical & Business - Walnut Creek - Full Time - 8 Hour - Days
John Muir Health • Walnut Creek, CA, United States
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Hardware Support Engineer
Cognizant • Sunol, CA, US
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_hours • serp_jobs.job_card.promoted • serp_jobs.job_card.new
Founding Engineer
Monarch Recruiters • Palo Alto, CA, United States
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Founding Full Stack Engineer (Frontend + UX Focus) (Fremont)
HartleyCo • Fremont, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Software Engineer (Fremont)
Acceler8 Talent • Fremont, CA, US
serp_jobs.job_card.full_time +1
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Full Stack Engineer (Fremont)
BioTalent • Fremont, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Full Stack Engineer (Fremont)
TechLine Consulting • Fremont, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Front End Full Stack engineer (only W2)
Flexton Inc. • San Jose, California, United States
serp_jobs.job_card.full_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Founding Engineer (Fremont)
trygravity.ai • Fremont, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
Full Stack Engineer (Fremont)
Raydar • Fremont, CA, US
serp_jobs.job_card.part_time
serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted