{"title":"How to hire an AI engineer in London","url":"https://www.jackandjill.ai/roles/ai-engineer/london","publisher":"Jack & Jill","slug":"ai-engineer-london","path":{"role":"ai-engineer","location":"london"},"published":"2026-11-04","updated":"2026-11-04","locale":"en-GB","currency":"GBP","role":{"singular":"AI engineer","plural":"AI engineers","article":"an","short":"AI engineer","shortPlural":"AI engineers","shortArticle":"an","people":"engineers"},"place":"London","hook":"AI engineers are in high demand in London.","what":{"definition":"An AI engineer is a software engineer who builds AI into a product and ships it, from features on large language models to the models and platforms behind them. The job is hands-on engineering, judged by what runs in production.","traits":[{"label":"Ships AI to production","pct":97},{"label":"Builds infrastructure for models","pct":69},{"label":"Builds on language models","pct":61},{"label":"Measures model quality","pct":58},{"label":"Trains or fine-tunes models","pct":46}],"flavours":[{"name":"The product builder","pct":46,"what":"Builds product features on large language models, from agents to search, and checks the answers hold up.","aka":"AI engineer, software engineer, founding engineer"},{"name":"The platform builder","pct":25,"what":"Builds the systems that train, serve and monitor models so they run fast and reliably at scale.","aka":"Software engineer, machine learning engineer, MLOps engineer"},{"name":"The model builder","pct":23,"what":"Trains and fine-tunes their own models, such as recommendations, vision or fraud, and ships them into the product.","aka":"Data scientist, machine learning engineer, applied scientist"}],"flavourNote":"Only 5% of roles are research engineering on frontier models."},"hard":{"answer":"Nearly 1 in 9 AI engineer positions in London is an open role, a third above the London Tech benchmark, and roles take 2 weeks longer to fill.","inRole":{"months":["2023-01","2023-02","2023-03","2023-04","2023-05","2023-06","2023-07","2023-08","2023-09","2023-10","2023-11","2023-12","2024-01","2024-02","2024-03","2024-04","2024-05","2024-06","2024-07","2024-08","2024-09","2024-10","2024-11","2024-12","2025-01","2025-02","2025-03","2025-04","2025-05","2025-06","2025-07","2025-08","2025-09","2025-10","2025-11","2025-12","2026-01","2026-02","2026-03","2026-04","2026-05","2026-06","2026-07","2026-08","2026-09"],"values":[3949,3984,4014,4064,4075,4224,4303,4317,4517,4515,4546,4624,4833,4924,5016,5118,5230,5370,5496,5541,5729,5812,5868,5897,6169,6217,6321,6428,6552,6743,6825,6910,7152,7236,7349,7395,7489,7596,7700,7711,7765,7859,7900,7894,7911]},"openRoles":{"months":["2025-08","2025-09","2025-10","2025-11","2025-12","2026-01","2026-02","2026-03","2026-04","2026-05","2026-06","2026-07","2026-08","2026-09"],"values":[611,606,609,674,677,718,752,819,822,913,942,920,967,954]},"timeOpen":{"median":66,"days":[0,15,30,45,60,75,90,105,120,135,150],"stillOpen":[100,82.8,71.4,61,53.1,46.1,38.2,31.3,26.8,23,20.7]},"estimated":["inRole","openRoles"]},"cost":{"pay":{"p10":50000,"p25":70000,"p50":100000,"p75":120000,"p90":150000},"drivers":{"rows":[{"label":"6–8 years’ experience, not 3–5","effect":14,"lo":12,"hi":16,"moves":true},{"label":"Founder or early employee","effect":13,"lo":9,"hi":16,"moves":true},{"label":"A more prestigious employer","effect":12,"lo":10,"hi":15,"moves":true},{"label":"Has a PhD","effect":6,"lo":0.6,"hi":13,"moves":true},{"label":"Shipped language-model apps","effect":6,"lo":1.4,"hi":10,"moves":true},{"label":"Already an AI engineer","effect":6,"lo":2,"hi":9,"moves":true},{"label":"Has led a team","effect":5,"lo":1.4,"hi":9,"moves":true},{"label":"Elite university","effect":1,"lo":-0.5,"hi":3,"moves":false},{"label":"Trains their own models","effect":0,"lo":-4,"hi":3,"moves":false}]}},"where":{"companies":[{"name":"Meta","domain":"meta.com","tag":"London’s deepest AI bench","why":"More AI engineers work in Meta’s London office than at any other employer in the city."},{"name":"Amazon","domain":"amazon.com","tag":"Big teams, many alumni","why":"Large London teams build AGI, Alexa and advertising models, and many of their engineers have moved on."},{"name":"Faculty","domain":"faculty.ai","tag":"An applied AI training ground","why":"Now part of Accenture, its engineers ship models for many clients, and as many have moved on as stayed."}],"paths":[{"role":"Already AI engineers","split":{"Enterprise":9.9,"Startup or scale-up":16.3,"Other":2.5}},{"role":"Software, data and solutions engineers","split":{"Enterprise":9.9,"Startup or scale-up":12.3,"Other":3}},{"role":"Data scientists and researchers","split":{"Enterprise":5.8,"Startup or scale-up":7.1,"Other":4.3}},{"role":"Founders and engineering leaders","split":{"Enterprise":2.2,"Startup or scale-up":6.3,"Other":0.3}},{"role":"Graduates and others","split":{"Enterprise":5.4,"Startup or scale-up":4.8,"Other":10.2}}],"newToRolePct":71,"fromStartupsPct":47},"competitors":[{"tier":"Enterprise","companies":[{"name":"Accenture","domain":"accenture.com","roles":33},{"name":"JPMorganChase","domain":"jpmorganchase.com","roles":31},{"name":"Wise","domain":"wise.com","roles":25},{"name":"Google","domain":"google.com","roles":20},{"name":"ASOS","domain":"asos.com","roles":18}]},{"tier":"Startup or scale-up","companies":[{"name":"Wayve","domain":"wayve.ai","roles":18},{"name":"Anaplan","domain":"anaplan.com","roles":12},{"name":"Mistral AI","domain":"mistral.ai","roles":10},{"name":"Compare the Market","domain":"comparethemarket.com","roles":9},{"name":"Lendable","domain":"lendable.co.uk","roles":7}]}],"win":{"answer":"AI work, hands-on engineering and strong pay get you in the door. To win the most in-demand AI engineers, lead with what they want more than the rest.","pitch":["Sell the early-stage upside","Offer equity","Show where the role leads","Show the frontier model work"],"wants":{"rows":[{"label":"An early-stage startup","top":53,"rest":34},{"label":"Equity","top":79,"rest":69},{"label":"A top-tier, well-known company","top":24,"rest":14},{"label":"A path into leadership, product or founding","top":57,"rest":47},{"label":"Frontier or foundation model work","top":25,"rest":16}]},"workModes":{"title":"More are open to any setup","benchmark":"Other software engineers","highlight":"Open to anything","rows":[{"label":"Office-leaning","top":17,"rest":19},{"label":"Open to anything","top":34,"rest":29},{"label":"Remote-leaning","top":43,"rest":48},{"label":"Remote only","top":6,"rest":4}]}},"city":{"location":"london","name":"London Tech","asOf":"2026-09","vacancyRate":8.2,"timeOpen":{"median":52,"days":[0,15,30,45,60,75,90,105,120,135,150],"stillOpen":[100,84.4,69.7,56.1,44,34.8,27.7,22.7,19,15.8,13.5]}}}