Staff Software Engineer

Staff Product/ Full Stack EngineerNew York (onsite)Series B AI Start UpUp to $380K + EquityMy client is an exciting Series B AI start up developing innovative developer tooling. They offer the fastest way to run your GitHub Action workflows, by orchestrating your workflows over their fleet of bare-metal gaming CPUs with your build caches co-located right next to your CI jobs. All it takes is a one-line code change.They are looking for a Staff Product/ Full Stack Engineer to set the technical direction for new product(s). This role operates at the organization level, owning architecture, solving complex product problems, and driving 0-1 product initiatives that shape how the company grows and continues to excite customers.You will be one of the key technical authorities and a force multiplier, you’ll raise engineering standards across the team, mentor senior talent and own production outcomes. This is a high impact, hands-on technical leader role.Requirements:7 - 20 years of experience as a full- stack engineer owning 0- to- 1 product builds from end- to- endDesigned, built, deployed exceptional products from 0- to- 1 in high- growth environments (e. g. , start- ups with recognised engineering teams like Ramp/Figma)Experience setting and leading the technical direction of high- value, recognisable products that deliver an exceptional customer experience from the early stagesExperience at a dev tools or infrastructure startup building products for engineersStrong technical fundamentals across the stack (particularly TypeScript and React)Experience with Applied AI or demonstrated and compelling examples of streamlining own workflows with agentic tooling or coding agentsTrack record of leading through influence and shaping technical direction as an ICClear clarity of thought, strong communication skills (inc. ability to explain technical concepts to all stakeholders), and pragmatic about trade- offsWhat you’ll be doingOwn and drive the architectural direction for our new product(s). These new products don’t exist in the industry today. You will be designing and building the next generation of AI native developer tooling.Translate business and product strategy into long-term technical roadmaps and execution plans.Drive the development of these products from 0-1.Accountable for production outcomes, including reliability, performance, and operational excellence.Mentor senior engineers and act as a force multiplier.Operate effectively in ambiguous problem spaces where both the problem and the solution need to be defined.You’re a good fit if you haveExpertise in building products that customers love. You’ll have come from a background where you have set and led the technical direction of a product from an early stage and developed that product through to one which is recognized industry wide as delivering an exceptional customer experience.Are a power user of coding agents. Our team embodies the ethos of a team that builds background agents. We operate at the forefront of agentic development and have built a best in class standard for agentic coding. You will help us further leverage these tools.Track record of leading through influence and shaping technical direction while operating as an individual contributor.Strong communication skills, with the ability to explain complex technical concepts to engineers, leadership, and non-technical stakeholders.Why candidates should joinGrowth That Compounds, Not Just Accumulates – we have gone from 0 to 5,000+ customers and $10M+ ARR in under two years – off the back of organic channels alone, before a sales team even existed. Since the start of this year, the business has nearly tripled in revenue, adding eight-figure ARR in a single quarter with a team of 20 people. This is not steady, linear growth; it is a business accelerating at a rate that most startups never see. For candidates who want their career trajectory tied to a genuine rocket ship, the timing here is rare.The Hottest Market Intersection, Full Stop – Compute and AI infrastructure are the defining markets of this moment. We sit precisely at that intersection, and is not just riding the wave – it is actively building the next generation of agentic developer tooling that does not yet exist anywhere else. Engineers here get to work on products that are making their own market, not competing in one.Trusted by Engineers Who Set the Bar – customers include Mercury, Descript, and Supabase – engineering organisations that are themselves benchmarks for technical quality and product craft. This is not a product being sold on promises; it is one that the most discerning engineering teams in the industry have already chosen. As such, this Solutions Engineer is not a sales support function sitting behind that relationship – they are the technical voice in the room, operating engineer-to-engineer with some of the most demanding teams in the world. The role carries real weight and real visibility from day one.Ownership That Is Genuinely Rare – Most engineers spend their careers influencing a product. Here, you are the product. Each engineer takes a new product from a blank page to something real customers are using – making the systems design calls, shaping the user experience, and living with the consequences. There is no committee, no six-month roadmap review, and no layer of management to route decisions through. For an engineer who has always wanted to find out what they are truly capable of, this is the environment that will tell them.