Founding Optimisation Engineer

Founding Optimisation EngineerLondon, Moorgate · Full-time · On-site or in Office (4 days/week) · Data Science & Operations Research · Dayjob.AI · YC P26 About DayJobDayJob builds AI agents for short-haul trucking - a $45bn market still run on spreadsheets, phone calls and software from the 1990s. We've just completed Y Combinator, are scaling towards $1M ARR, growing ~20% month-on-month, and launching in the US. Our customers include some of the largest waste and recycling operators in the UK and US, and we're backed by leading investors including Paul Graham (Founder of Y Combinator) and Harry Stebbings (Founder of 20VC).

Dayjob has developed its own proprietary models, which wouldn’t have been possible until now, delivering hundreds of thousands of pounds in additional revenue to its customers. This is a once in a generation opportunity to change how these businesses operate, industries where software adoption has been slow but where AI adoption can completely change their economics. About the Optimisation TeamDeploying state-of-the-art algorithms into legacy businesses is one way to think about what we do at Dayjob.

Hence, optimisation is the cornerstone of what we do; saving 1% time on the road gives our customers hundreds of thousands more revenue and saves gallons of diesel on wasted mileage.We’ve launched models to optimise roll-off vehicles in the waste sector; this is just the tip of the iceberg.

Founding Team

Fred & George met at the University of Oxford.George (CEO) was Head of Sales at Otta and launched Deliveroo’s Grocery division, scaling it to £100M GMV.Fred (CTO) builds products that optimise complex supply chains using AI and advanced analytics. You may be a good fit if you haveA degree in mathematics, physics, computer science, engineering, or a similar quantitative field4+ years working on optimisation, routing, scheduling, or applied OR problems - ideally with meaningful time on real, deployed systemsA track record of building and shipping optimisation or ML solutions, ideally in a fast-paced transport or logistics settingExperience in working with geospatial data like spectral analysis, applied graph theory and computational geometry.Strong Python and SQL, with hands-on experience using solvers (e.g. OR-Tools, Gurobi, CPLEX)The ability to balance theoretical rigour with pragmatic constraints, and to own a model end-to-end: design → build → deploy → tuneComfort working with messy operational data and edge-case-heavy workflowsExperience mentoring or leading other engineers, or a clear and genuine ambition to start Bonus if you’ve worked onVehicle routing problems (VRP), especially with uncertainty and problem sizes requiring decompositionConstraint programming or metaheuristicsReal-time decision systemsLogistics, fleet, or field-service productsEarly-stage startups What we offerCompetitive salarySignificant equity25 days holiday + your birthday offMoorgate officeLearning & development budgetA foundational role defining our optimisation engine and technical roadmap from the ground up Application processIntro call with the team (30 mins)Technical interview (2 hrs)Final chat with the founders (45 mins) To closeShort-haul trucking is a decade behind companies like Amazon - yet it's the lifeblood of the economy.

Our customers deserve better tools, and only now, with AI, are they possible to build. If you want to build the brains of the next-generation dispatch engine, we'd love to meet you.Compensation: £80K - £120K • Offers Equity • £80K - £120K • Offers EquityFind Jobs in United Kingdom on Arbeitnow