Founding Software Engineer
Cromatic
Cromatic is building highly specialized, data-powered RevOps AI agents for technical industries (think life sciences, manufacturing, hardware, etc). Our agents combine deep domain intelligence with commercial execution, operating like hiring a business development professional with PhD-level expertise alongside the relationship instincts of an experienced enterprise sales team. Built on industry-specific datasets and workflows, Cromatic agents automate complex business development operations, sustain outbound momentum, and engage accounts with technical accuracy and contextual relevance. They understand not only the science and market landscape, but also the nuances of timing, stakeholder management, and long-term relationship building that drive successful partnerships. Rather than replacing human teams, Cromatic enables them to spend less time on repetitive operational work and more time focused on strategic conversations, trust-building, and closing high-value opportunities. Role Overview The Role Ship full-stack features from database to UI. You\'ll own entire parts of the product. Build AI features that actually work - not just demos. Think LLM pipelines, embeddings, and smart data processing. Handle real-time data from multiple sources. Make it fast, make it reliable, make it useful. Talk to customers, understand their problems, and build solutions that make their day better. Work on whatever needs doing. Small team = you\'ll touch everything. Qualifications 2+ years of work experience in a high growth tech company You are AI-enabled and can clone your productivity with AI tools. Experience in full stack software development, with emphasis on using NodeJS, GraphQL, PostgreSQL, React, Typescript, and TailwindCSS. Strong understanding of ML concepts (LLMs, model training, finetuning, embeddings, etc). Excellent problem-solving skills and ability to work effectively in a multidisciplinary, cross-functional team. Benefits & Life at Cromatic The products you build will help shape the future of how global enterprises do business. You\'ll work alongside teammates who are invested in your development. We travel together twice a year to a new city to try new food and experiences as a team. Competitive compensation and a comprehensive benefits package. #J-18808-Ljbffr Cromatic
$180k - $225k
Join to apply for the Founding Fullstack Software Engineer role at Code Four (YC X25) This range is provided by Code Four (YC X25). Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $180,000.00/yr - $22...SuggestedFull time- ...personalized AI assistant that understands everything about you and automatically arranges your trip for you. We're looking for a founding engineer to join the our team of 3-4. You'll tackle everything from optimizing LLM performance and building evals to integrating APIs...SuggestedWork at officeRemote workWork from homeFlexible hoursNight shift
- ...which is leading the charge in transforming observability for today's data-driven world is looking for seasoned software engineer to join them as a founding engineer. As the founding engineer you will lead the design and development of their Telemetry Data Management Platform...SuggestedFlexible hours
- ...scale faster. As a cornerstone of this team, we’re hiring 1 founding engineer in-person at our San Francisco office. Your Role As a founding... ...s Head of Engineering. Skills We’re Looking For 3+ years of software development experience. Comfortable working across the stack...SuggestedWork at officeWorldwideShift work
- ...team. Platform improvements: Picking up engineering projects where you can make a real... ...The skills we’re looking for 1+ years software experience: You\'ve built or maintained... ...relocate. Our commitment to inclusion Before founding Aglide, Oliver and I helped establish an...SuggestedWork at officeRelocation
- ...operations, and turn messy internal data into AI-powered workflows that solve real, business-critical problems. We're looking for a Founding Engineer to work directly with customers, and build the product. If you thrive at the intersection of technical depth and customer...
$150k - $250k
...provides a simple interface to the vast array of tools being released daily. About The Role We’re hiring three exceptional Founding Software Engineers to help us scale the computational biology platform that powers our drug discovery pipeline. In this role, you’ll...Relocation$200k - $275k
...0,000.00/yr - $275,000.00/yr Managing Recruitment Consultant at Harnham US — Data, AI & Tech → Mid-West & South Atlantic Founding Software Engineer $200,000 to $275,000 + COMPANY A cutting-edge AI company is transforming creative strategy with AI-driven insights, leveraging...Full time- ...interface for how enterprise employees interact with computers. Founded by two second-time founders, they're creating an AI agent that... ...San Francisco. 2+ years of experience building production-level software Strong CS fundamentals and full-stack development experience...Full timeImmediate start
- About the job Founding Software Engineer - Full Stack Skills: Typescript, React.js, AWS, React Native. We are looking for a highly motivated and talented founding engineer to join our team and help shape the future of local commerce delivery logistics. As a founding engineer...Local area
- We’re searching for a founding engineer(s) who brings a mix of rapid iteration, meticulous craftsmanship, and an eagerness to dive into the... ...1-3 (or more) years of experience building professional software with a very high quality bar. Ideally, you have demonstrable...
$175k - $195k
...closed our seed round in November 2025 and our first commercial deployment launches in August. The Role We are hiring a Founding Software Engineer to own the software platform that turns our foundation model and IoT hardware into a usable product. As an early addition...Full timeTemporary workWork at officeImmediate start$150k - $200k
Join to apply for the Founding Software Engineer role at Attune (YC X25) Join to apply for the Founding Software Engineer role at Attune (YC X25) Get AI-powered advice on this job and more exclusive features. This range is provided by Attune (YC X25). Your actual pay will...Full time$90k - $120k
Join to apply for the Founding Software Engineer role at Canvas AI (YC F24) Join to apply for the Founding Software Engineer role at Canvas AI (YC F24) This range is provided by Canvas AI (YC F24). Your actual pay will be based on your skills and experience — talk with...Full time$5,000 per month
...database and PgDog is building its future. This isn’t an easy task, but it’s exciting and full of opportunities. As our first founding engineer, you will define the company. You’ll be given full autonomy and responsibility to build our products, including 0-to-1 projects...Work at officeRemote work$150k - $300k
...Funded | Future Leaders Wanted About the Role: We are seeking a Founding AI Engineer to join our early-stage, high-growth AI startup. This... ...interviewing at Goliath Partners by 2x Sign in to set job alerts for “Software Engineer” roles. Mountain View, CA $145,000.00-$170,000.00 1...Full timeSummer workInternship$130k - $170k
Founding Engineer Join now to apply for the Founding Engineer role at Nowadays (YC S23) . Base pay range $130,000.00/yr - $170,000.00/yr About Nowadays Nowadays is the first AI platform for planning corporate events. Our AI can contact venues by email and phone to get...Full timeWork at office$200k - $300k
Job Description for Founding Software Engineer This position is provided by DGC Search. Your actual compensation will depend on your skills and experience — consult with your recruiter for more details. Base pay range $200,000.00/yr - $300,000.00/yr Direct message the...Full time- We’re seeking a Founding Software Engineer for an early staged AI & LLM startup based in San Francisco. About the Role Hands on experience developing technology using Python A builder of business logic with Web Framework such as Django and MySQL Experienced in Nginx...
- ...patients. We're building an AI-native platform to fix that, and 80+ practices are already running on it. THE ROLE This is a true founding-engineer seat. You'll work directly with therapists, ship real features that land in production, and own problems end-to-end — from the...Relocation package
- Voiceflow in San Francisco is looking for a Senior Software Engineer to join our ambitious team. As a founding engineer, you will work on distributed systems and have a significant impact on our product development by interacting directly with customers. This challenging...Work at office
- Artie, based in San Francisco, is seeking a founding senior software engineer to join a small team focused on distributed systems. You will own key backend components, interact with customers, and shape the product with real-time data streaming and CDC at its core. We value...
- ...led by Mark Cuban and a host of prominent angels and VCs). Our founding team has backgrounds at BCG, Bain, Harvard, Stanford, Oxford,... ...be a key contributor at Clipbook — joining a small but mighty engineering team with engineers from Meta, Stripe, and AWS. You'll have...
$120k - $230k
Founding Software Engineer (Mid‑Senior Level) Why Zania Every enterprise spends millions of dollars on Governance, Risk, and Compliance (GRC). It's one of the most critical, yet universally painful, parts of running a business. For decades, this industry has been dominated...Work at officeRelocation packageFlexible hours$215k - $290k
...one of the top ranking startups at About the Role As a Founding Senior Backend Engineer, you’ll shape the core systems powering millions of AI-driven... ...ownership like a founder, with a passion for impactful software. Thrive in fast-paced, ambiguous environments, solving...Full timeInternshipWork at officeWork from homeVisa sponsorshipFlexible hours$175k - $225k
Founding Full-Stack Software Engineer (React / Node.js / NestJS / PostgreSQL) Carma Technologies, Inc. Base pay range: $175,000.00/yr - $225,000.00/yr Equity: 2.00% — 3.00% Location: San Francisco (In-Person) Job Type: Full-time Department: Engineering We’re building...Full timeWork at officeRemote work$120k - $160k
We're looking for a founding engineer to own Airweave's data and infrastructure layer, the systems that make our distributed search and data pipelines scalable, reliable and observable. At Airweave, you'll build and operate the platform that thousands of AI agents depend...- Kalinda (YC S25) is hiring a Founding Engineer to join their San Francisco team dedicated to revolutionizing how injured individuals receive... ...for corporate negligence. The ideal candidate has a strong software development background, with expertise in full-stack...
- A rapidly scaling defense AI startup in San Francisco seeks a Founding Engineer to own substantial portions of the tech stack and drive development of mission-critical solutions for defense clients. This role is geared towards a dynamic team player eager to tackle challenging...
- Overstand Labs (YC W25) is seeking a Founding Engineer to work closely with customers and build products that address complex business needs. This role involves developing production-grade systems across AI pipelines, backend services, and user interfaces, using technologies...
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