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🚀 Full-Stack Engineer (Mid to Senior) 📍 London, Hybrid 💰 £110K–£185K base depending on level + early-stage equity 🧠 Live digital twins The company Early-stage AI startup, well-funded with a founding team from one of the most talked-about AI companies in the world. They build live digital twins of enormous real-world systems. Huge volumes of fragmented live data gets pulled into a single model that mirrors how the real thing actually behaves, in real time. On top of it you can see what's happening now, simulate what happens next, and act before a small problem becomes an expensive one. It runs inside the organisations that operate at that scale, so it's real from day one. The hard part is the whole job: the inputs are messy, the systems are old, and the model has to stay right while the world keeps moving. Engineering leads the company. The role You own the application layer end to end, frontend and backend. You take a rough prototype built in front of a customer and turn it into software people rely on to run the real thing. At a team this small, that's a whole product surface that's yours, not a slice of someone else's. Almost nobody gets that this early. The bar You ship production full-stack software on your own. Strong TypeScript and React, plus a modern backend. You've carried real features to production, and you're good with a customer in the room. Mid-level or senior both work here. What matters is what you've actually shipped, not the number of years next to it. Requirements You write and ship production full-stack code unsupervised Strong TypeScript and React, plus a modern backend (Python, Node, or Go) Solid on relational databases and clean API design Nice to have AI-native product experience Time in an early-stage startup or another fast, ambiguous, zero-to-one environment Experience with large-scale systems, simulation, or heavy real-world data Comp and logistics £110K-£185K base depending on level, plus early-stage equity London-based, hybrid (3/4 days in office each week but with flexibility where it matters)
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.