Founding Engineer
$170k - $220kDifferential.
Founding Engineer - Early-Stage AI Workflow Startup New York City | Onsite | $170k–$220k + meaningful equity I’m working with an early-stage AI company in New York that is building automation technology for a large, underserved operational market. The business is solving a real-world coordination problem where teams still rely heavily on phone calls, fragmented systems, manual admin and outdated workflows. Their product uses AI agents to automate complex scheduling, communication and verification workflows across multiple systems of record. This is a Founding Engineer role, joining a very small engineering team at a point where there is still significant scope to shape the product, architecture and engineering culture. What you’ll be doing You’ll own ambiguous, high-impact projects end-to-end, including: Building core product infrastructure and integrations with third-party systems Developing AI-powered workflow automation across communication-heavy operational processes Designing systems that handle context, memory, scheduling logic and compliance-sensitive actions Working across full-stack product development, backend systems and LLM-powered workflow The ideal person is a backend-leaning full-stack engineer who enjoys early-stage ownership and can operate without much hand-holding. You’ll likely have: 4–8 years’ full stack software engineering experience Backend experience with Node Strong database experience, ideally PostgreSQL or similar relational systems Experience owning products or systems from 0→1 Prior startup or founding engineer experience would be very relevant, especially if you’ve built products for complex professional or operational users. Why this could be interesting This is not a generic AI wrapper or a narrow feature role. The team is building software that sits inside messy, real-world operational workflows where reliability, context and judgment matter. It’s a strong fit for someone who wants: Early engineering ownership A product with real customer pull A technical problem that spans product, infrastructure, integrations and AI Meaningful equity upside Direct exposure to customers and product direction Package Equity: meaningful early-stage equity Small, founder-led team Visa sponsorship available for relevant candidates Location This is an onsite role in New York City . The team is building in person and looking for someone excited by the pace and ownership of an early‑stage environment. If you’re a product-minded full-stack engineer who enjoys building from zero, solving messy operational problems and working with AI-enabled workflows, this could be a very strong fit. #J-18808-Ljbffr Differential.
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- 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...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- ...and private clients Bachelor's degree or masters' degree in Engineering, Architecture, Building Science, Construction Management, or a... ...July 4th holiday. Additional details about our benefits can be found towards the bottom of our KPMG US Careers site at Benefits & How...SuggestedContract workFor subcontractorH1bLocal area
KPMG
New York, NY3 days ago - ...-edge solutions in the field of blockchain technology. As the founding Cryptographer, you will be at the forefront of our technological... ...decentralized exchange. You will collaborate closely with our engineering, security, and research teams to ensure the highest levels of...Remote job
- ...seeking a Associate, Infrastructure Project Advisory (Construction/Engineering) in Infrastructure and Projects Advisory for our Deal Advisory... ...July 4th holiday. Additional details about our benefits can be found towards the bottom of our KPMG US Careers site at Benefits &...Contract workH1bLocal area
KPMG
New York, NY3 days ago - 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
- ...About the Role We're hiring Linkup's first GTM Engineer - a technical builder who will architect the systems powering how we grow... ...Amundsen, an open source search engine. Denis Charrier- Founding Engineer at Niland, an audio search company (acquired by Spotify...Flexible hours
Linkup Inc
New York, NY4 days ago $500 per month
...AI fund), Liquid 2 (Joe Montana), and others. The Role You are not a traditional, manual enterprise sales rep. You are our Founding GTM Engineer. Today, Rovi Health relies heavily on warm referrals and founder-led sales to close enterprise-level deals. As we scale, the...Work at officeImmediate startRovi Health (YC F25)
New York, NY2 days ago$250k - $350k
Goliath Partners is seeking a Founding Fullstack AI Engineer to join their innovative team in New York. This role is key in designing and deploying scalable AI pipelines and building backend systems that power autonomous workflows. Ideal candidates should have at least...- A fast-growing technology startup in the UK, focused on providing security solutions, is seeking a Founding Engineer. The role involves building innovative products with a tight-knit team, primarily using C# on .NET Core. Candidates should have a software development background...RelocationVisa sponsorshipRelocation package
- We're building the future of recruiting with AI - and we need an exceptional engineer to join our founding team in our San Francisco hackerhouse. We just raised a $3M pre‑seed from top‑tier investors and are looking for someone to be one of our first engineering hires....
- ...with founders on technical and product strategy. Help shape engineering culture as one of the earliest hires. Qualifications Experience... ...and desire to build from zero to production. Why Join Founding‑level impact and ownership. Proven founders with a track record...
$100k - $250k
Solve Intelligence, a fast-growing startup in New York, is seeking a Founding Growth Engineer to lead product growth efforts. This role involves analyzing product usage, optimizing the revenue pipeline, and collaborating with a talented team to drive user engagement. The...Visa sponsorship- ...re building something special here. We're looking for talented engineers from the US who are excited about the opportunity to work in... ...like? 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 at officeRemote workWork from homeRelocationVisa sponsorshipWork visaRelocation packageFree visaSkilled worker visaFlexible hours
$175k - $250k
...and built the first version of the product. We’re hiring the founding technical team now to accelerate our development and time‑to‑market... ...day. You’ll work closely with the founder and alongside the engineering team building our booking infrastructure. What you’ll own...Full timeLive inWork at officeLocal areaWork from homeRelocationVisa sponsorshipFlexible hours$175k - $250k
Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high‑performance platform... ...to business growth and beyond. We are seeking a Founding Engineer to join our incubation efforts for TRV and drive foundational engineering...Full timeCasual work- CT19 is looking for a Founding Research Engineer based in New York who will contribute to building scalable systems for biological intelligence models. This role is critical in training, evaluating, and optimizing performance of models, utilizing cutting-edge technology...
$150k - $250k
...from Decagon, Cognition, Kalshi, and Uber. About the Role This is a rare opportunity to be one of the first employees. As a Founding Engineer at Pascal, you will deliver modern, agent-first architectures to our customers. Responsibilities include: Building the foundational...Work at officeFlexible hours- Fleetline, based in New York, NY, is expanding and seeking founding engineers to develop optimization algorithms for large trucking companies. The role requires candidates who can adapt, communicate with clients, and deliver code quickly. Ideal candidates have experience...
- ...process invoices, and arrange logistics. We’re growing 75% month-over-month and looking for engineers that thrive in fast moving, 70-80 hour week, high-ownership roles. As a founding engineer, you will work directly with the CEO and Lead Founder Engineer to build agents...Work at office
$150k - $200k
...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...Full time$100k - $180k
A burgeoning fintech company in New York is looking for a Founding Engineer to architect and build core systems for global payroll. This role offers significant ownership, meaningful equity, and a direct impact on product and culture. The ideal candidate has 3-7+ years...- ...scale companies to huge sizes with small headcounts as AI continues to improve. If you do want to found your own company someday - you will have a clear view into engineering, product, go‑to‑market, and the iterative loop that connects all 3. You won’t like this if:...Live inRelocation
- Fleetline is expanding its team and hiring founding engineers to build optimization algorithms for the trucking industry in New York City. The role requires experience in writing optimization algorithms, comfort with ambiguity, and fast coding abilities. We're looking...Work at office
- Job Details Job Title: Founding Forward‑Deployed Engineer (YC‑backed public safety startup) - Equity 0.20% - 1.00% Available. Job Location: NYC (Preferred) or SF Hybrid - 25-50% Travel based on customer sites. Job Duration: Full-Time Permanent. Salary: $85,000 - $140,0...Permanent employmentFull timeTemporary workH1bVisa sponsorshipRelocation package
- As founding engineer you'll be an integral part of the Solva team. You will work with the founders and have defining role in building the core product and expanding the engineering team. One week you’ll be deep in backend systems and cloud infrastructure, the next you’...
- OnHires is seeking a Founding Engineer in New York, NY to help shape the technical foundation of the company. You will work on developing innovative systems for search and knowledge representation in a hybrid environment. This role requires strong software engineering experience...
- ...Vista Equity Partners, and Nolan Hendrickson, who previously led engineering teams within Microsoft’s Defender organization. The company is... ...best work. Role Description We’re beginning to build out the founding team and are looking for a small number of founding engineers...
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