Founding Engineer
HartleyCo
The role You'll work directly alongside the founder as one of the earliest hires. No product managers. No handoff culture. Help shape the product after MVP launch Design backend systems and technical architecture Work across the stack wherever the problem requires Speak directly with users and rapidly improve the product What they're looking for 2-5 years of software engineering experience CS degree from a strong engineering programme (or equivalent technical pedigree) Experience shipping consumer-facing productsStrong backend engineering with full-stack capability Comfortable making decisions without complete requirements Engineers who naturally think about both the product and the technology behind it What they're not looking for Engineers who only want infrastructure ownership People who need highly structured environments Someone who wants to inherit an established roadmap Engineers who'd rather optimise systems than build products people actually use Why this role One of the earliest hires in the business Direct partnership with the founder Real influence over product and technical direction Consumer product with genuine social impact Meaningful equity alongside competitive salary Comp Competitive base + meaningful founding equity. Location New York City - five days onsite. #J-18808-Ljbffr
- Sciemo, Inc. in New York City seeks a Founding Member of Technical Staff to drive design, build, and deploy AI systems at scale across... ...product stack. This hybrid role blends data science and ML engineering and will work with data engineers, backend engineers, and product...Suggested
- Garage, based in New York, is building a founding technical recruiting function to fuel its engineering, product, and design teams as we scale a mission-critical marketplace. You will own searches end to end, build targeted pipelines, and partner with the CTO/Co-founder...Suggested
- Oodle is seeking a Founding Engineer to join on the ground floor to disrupt large markets with a scalable database/observability product. You will wear multiple hats, prototype rapidly, talk to customers, and shape the core stack. You have 5-8+ years of distributed systems...Suggested
$180k - $300k
A cutting-edge AI marketing startup is seeking a Founding Engineer to define and build the core technology stack. This role involves tackling frontier AI challenges, developing data infrastructure, and creating intelligent systems for advanced performance marketing. Ideal...SuggestedRelocation package- ...healthcare startup in New York to build end-to-end ML systems for medical coding and revenue cycle workflows. We’re seeking a Founding AI Engineer to own core AI systems from data ingestion to production deployment. This hands-on role offers meaningful equity upside and...SuggestedWork at office
- Advatix Inc. in New York is seeking a Founding AI Engineer / Member of Technical Staff to design and ship machine learning systems crucial for public safety. This role involves direct collaboration with founders and investigators to transform digital evidence into actionable...
$150k - $250k
Precharm is seeking a founding engineer in New York City to build and improve systems for our trading business. You will have significant ownership over the development of exchange connectors, execution systems, and market data infrastructure. We value candidates with 1...- ...an a16z-backed startup, is building AI agents to automate the $3 trillion American manufacturing back office. We are hiring a Founding Engineer in New York City to build the digital backbone, ship core AI features, and integrate with legacy ERP systems from 0 to 1. You'...
- Photonium is looking for a Founding Machine Learning Engineer to join their team in New York City. This full-time on-site position focuses on designing and implementing optical design agents, developing ML models to optimize outcomes. The ideal candidate will have strong...Full time
$160k - $260k
...mission is simple: place the best people in the right roles to drive long-term success for both clients and candidates. Founding Engineer Location: New York City Company Stage of Funding: Seed Stage AI Infrastructure Startup Office Type: Onsite Salary...Work at office- ...structure, and provide clarity to the team about moving pieces during periods of growth or change. About the role We’re looking for a Founding Engineer who wants real ownership. You’ll build features, talk to customers, and help shape the product as we figure things out...
$125k - $200k
...meaningful projects in our product pipeline, and we need to grow the engineering team to build out the vision. From day 1 you’ll hit the ground... ...with some of the most exciting work of your career. As a Founding AI Engineer, you’ll be working on new applications of AI that...Full time- ...Founding Engineer Opportunity at Asymmetric Asymmetric is the first AI-native Digital Forensics and Incident Response company. Our AI platform has helped incident responders handle hundreds of cyber attacks. Building on this experience, we're creating realistic training...Immediate start
$100k - $140k
...sponsorship dollars, we’re ready for someone to step in and own engineering, product, auditing and building on our foundation to create a... ..., working with LLMs, and building AI-agents. Some combo of: founding engineer at a seed-stage startup, design engineer, technical PM...Temporary workFlexible hoursShift work- ...Founding Engineer (NYC) Join Lava's team in shaping how people and AI build, monetize, and work together. Lava is a universal connector to every LLM, API, and MCP, powering an integrated workspace and productivity with no key sprawl to manage. Lava also gives developers...Work at officeVisa sponsorshipFlexible hoursShift work
- ...Meta, Shopify, and startups. Now we’re backed by the investors behind OpenAI, Cursor, and SKIMS. The Role We’re looking for a founding engineer who can move fast across the stack and go deep when the problem demands it. Early on, the work will be varied: one week you might...Work at office
- ...previously part of building Europe’s fastest growing InsurTech and founded a licensed EU bank processing payments of €1B/yr+. Now we are... ...growing and best-funded startups. About the role As founding engineer you will work alongside a team of experienced 2x-founders and ex...
- ...of dollars in volume with consistent profitability. We’re based in NYC, founded in 2025, and still small enough that every hire materially shapes the firm. The role We’re hiring a founding engineer to build the systems the trading business runs on — exchange connectors,...
- ...We are hiring a founding engineer. This is not a normal engineering job. You will help decide what the company becomes, because the first technical decisions shape everything that follows. If you do this well, years from now large parts of the system will still look the...
$180k - $220k
...General Context | Founding Engineer | NYC (On-Site) | $180-220K + Equity | Role As a Founding Engineer, you'll help build our agentic marketing/creative platform and the core infrastructure that powers it. This is a ground‑floor opportunity to architect and ship the foundational...$150k - $225k
...Neptune Founding Engineer (Full Stack) Neptune is building the concierge couples trust to navigate the biggest decisions of a life together. We pair emotionally intelligent AI with vetted legal and financial experts and transparent pricing, so both partners can make confident...Work at officeShift work- ...re building something special here. We're looking for talented engineers from the US who are excited about the opportunity to work in... ...We think 9am-6pm will bring a great cadence to work. As a Founding Engineer there will definitely be times you need to pick up work...Work at officeRemote workWork from homeRelocationVisa sponsorshipWork visaRelocation packageFree visaSkilled worker visaFlexible hours
- ...NYC position only . Any applications outside of NYC will not be reviewed. The role Sunspell is a venture lab, and this is a founding engineering seat. You build and ship end-to-end across our internal operating system and the products on top of it, from prototype to production...Full timeContract work
- ...Founding Engineer Opportunity We are partnering with a profitable, pe-backed company building systematic trading infrastructure for real-world markets. Live events generate tens of billions of dollars annually in secondary ticket transactions, yet the market remains...
- ...it accountable. We’re VC-backed and pre-seed with a two-person founding team (CEO and CTO) and a growing roster of AI agents handling bookkeeping... ...people can build. That’s why we’re hiring our first dedicated engineer, and why there is an enormous amount to build, fast. The Role...Immediate start
$100k - $180k
...ecosystem. We're backed by the world9s leading investors including Y Combinator, 10X Founders, Zillionize, Amino Capital, etc. As a Founding Engineer , you9ll help architect, build, and scale the core systems that power global payroll and money movement. You9ll work directly...- ...trade on translated and delivered in real time by our AI research engine. From there the map expands, market by market, until global... ...path to our own FINRA-licensed broker-dealer, and building the founding engineering team now. Why this role exists Ceno's brokerage is...Local areaOverseas
$200k - $250k
...Founding Engineer | NYC | $200k–$250k + Equity DevLogic is partnering with a stealth, pre‑seed‑backed startup in NYC to find their next Founding Engineer. This is a rare one. You'd be the second engineer in the building, working directly with two technical co‑founders...Work at officeRelocation packageFlexible hours- ...relevant, then surfaces the right insight at the right time. Our founding team We closed a 7M seed round led by Accel and 10’xed revenue... ...impact real lives We are looking for ambitious and relentless engineers to join us on this mission. Whereas at other companies you may...Local area
$250k - $350k
...The team is eager to bring on a Founding Fullstack AI Engineer to join the team. There is a bit of wiggle room on tenure necessary, we are looking at those with anywhere from 4 Years of Experience onwards. Role Highlights Design and deploy scalable search/retrieval pipelines...
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