Founding Engineer
$125k - $200kConstant (YC W23)
Base pay range $125,000.00/yr - $200,000.00/yr Overview For the right candidate, this is a genuinely unique opportunity. There are many AI startups, but few are targeting our area - we’re capturing meaningful, differentiated applications of AI. Why We’re Hiring For This Role: There are tons of high-impact, 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 running 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 push the frontier of investing. Everyday you’ll have the chance to create great technology, great products, and grow as a leader. Responsibilities Work directly with the founder and others on all areas of the product. Architect, develop and maintain high-quality software; take ownership over broad areas of the development process. Provide guidance and leadership to junior developers, including helping to hire junior developers to grow the engineering team. We’re Looking For Someone Experienced Passionate Thoughtful Creative Experience Requirements 3+ years of experience Strong experience working with modern coding tools (such as Cursor, Windsurf, and Claude Code) Strong experience with LangGraph/LangChain, or comparable tools Strong backend experience Familiarity with investing, finance and/or fintech Seniority level Mid‑Senior level Employment type Full‑time Job function Engineering and Information Technology Industry Investment Management Referrals increase your chances of interviewing at Constant (YC W23) by 2x. #J-18808-Ljbffr Constant (YC W23)
- ...now building the product that all of that infrastructure was designed to power: an AI CFO agent. About the Role We’re hiring a Founding Engineer to work primarily on the new AI CFO agent. This role is tech‑lead‑level autonomy from day one. You will own and deliver on the...SuggestedVisa sponsorship
- ...Early engineering hire at a well-funded seed-stage startup taking on the proxy advisory duopoly with AI. Hybrid NYC, work directly with... ...approach to corporate governance We’ve raised a sizable seed, the founding team blends deep capital markets experience with technical...SuggestedWork at office
$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...SuggestedWork at officeShift work- ...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...Suggested
$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...Suggested- ...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,...
- ...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...
- ...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...
- ...and service for our B2B partners allows them to serve more homebuyers, with the products they need, at market leading rates. Founding Engineer The Founding Engineer will operate as technical leader focused on execution, velocity, and practical problem-solving in an early...Self employmentRemote work
$130k - $160k
...driven company. Role Description Saige is looking for a software engineer excited to work on meaningful problems at the intersection of... ...pipelines to user-facing components. This is a full‑time, on‑site Founding Engineer role based in New York City. Team Description Saige's...Full time$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$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...- ...underneath the models, making new LLM releases more valuable, not redundant. The engineering team is currently 4 people and is expected to triple in size in the next two months. The company was founded by former engineers from Palantir, Meta, and Amazon. It has raised $6...
- ...Founding Engineer, Thera (NYC) Thera is building the financial OS for modern SMBs. Payroll, payments, treasury, spend, and accounting in one ecosystem that actually works end-to-end. We're looking for our first NYC-based Founding Engineer to help scale the systems powering...
$250k - $350k
...individuals as well as some wildly successful entrepreneurial engineers. The CTO has built and sold his last 3 businesses and the last... ...total (40 on the research side). The team is eager to bring on a Founding Fullstack AI Engineer to join the team. There is a bit of...- ...at places like Google, BCG and Coalition. You’ll have outsized impact and ownership You'll build something from 0 to 1. As a Founding Engineer, you'll take on many of the responsibilities expected in a founder. Main responsibilities include: Own the end-to-end development...
- ...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...
- ...backed by top tier VC’s like Base10 and South Park Commons. Noto is founded by two technical founders AJ Ding and Steve Wang and is based... ...built an AI recruiting company. He was a machine learning engineer and data scientist at Quora, Lyft, & Meta. He studied Statistics...Work at officeLocal areaWork from homeNight shift
- ...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...Work at office
$200k - $260k
...About Rhythmic Rhythmic is an embedded stablecoin finance company founded by senior fintech operators with experience at Circle,... ...building that future. The Role Rhythmic is hiring a Founding Engineer to lead the long-term engineering strategy plus day-to-day execution...Contract workFor contractors- ...founders, we're combining modern AI, automation, and software engineering to solve real-world business problems in a large, global market... ...and enterprise organisations worldwide. The Opportunity As a Founding Engineer, you'll work alongside experienced founders and senior...Worldwide
$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...$120k - $180k
...startup (Google + Y Combinator among the backers) building the AI-native infrastructure to change that. They're looking for a Founding Engineer to help lead the charge — a lean team, real traction, and a founder's-mentality culture where the person who spots the problem...Full time3 days per week$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$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 start$200k - $270k
...power of the cloud without the complexity and cost — letting engineering teams instantly spin up production-grade infrastructure on any... ...since 2022, with a flat team and a high-ownership culture. Founded 2020 · 11–50 people · Industry: developer infrastructure / cloud...Full timeH1bRemote workRelocationVisa sponsorship$120k - $180k
...Job Description Job Description Job Title: Founding Engineer Package: $120k - $180k + equity Location: New York City (3 days per week in office) Launchpad Recruitment are partnering with a high-growth, VC-backed (GV & YC) AI-native investment infrastructure...Work at office3 days per week$175k - $250k
...real-time-mutating UI through LLM tool calls and improves continuously from its own outputs. Founded 2025 · ~9 people · Industry: FinTech The Role A Founding Engineer working primarily on the new AI CFO agent, with tech-lead-level autonomy from day one. You'll join...Full timeInternship- ...This is not a typical marketplace. This is a trading system... applied to real-world assets. The Opportunity As a Founding Engineer, you will architect and build the core systems that power valuation, capital deployment, and execution across secondary markets...
$200k - $300k
...foundational AI dispatching systems for the home services industry at an elite proving ground designed for future founders. Founding Full Stack Engineer Benefits - Starting Salary targeting $200K - $300K - Competitive equity package - Comprehensive medical dental...
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