Agentic Customer Engineer

LightAgentic Customer Engineer LocationLondonEmployment TypeFull timeLocation TypeOn-siteDepartmentGTMRetire the ERPLight exists to replace factory-era ERPs with software that feels alive. Our Smart Financial Platform gives modern, global companies superpowers - automated accounting, real-time reporting, and financial flows that move at the speed of the business.We build with our customers, ship fast, and obsess over craft. In a short time, Light has gone from idea to the operating core for leading companies like Lovable, Legora, and Fuse Energy.We're an early team defining a new software category. Think engineers who love debits and credits, designers who care about reconciliation states, and operators who treat finance as a product. If you're excited to modernise how companies run money, you're in the right place.Backed by world-class investors including Balderton and Atomico and advised by industry titans, we're building category-defining products with the freedom to ship ambitiously and own outcomes. Come help us make Light the global default for next-gen finance.About the RoleYou'll embed inside our most important customers and rebuild how their finance function works. You’ll map how the team really works, redesign the workflow, wire the integrations, and ship the agents, all to make sure they work in AI-native ways and are using Light to its full potential.Your customers are Financial Controllers, Finance Directors and CFOs at fast-growing multinational SaaS and tech companies. Senior, technical, time-poor. You'll sit with them, diagnose the real problem, build the answer - then train them to run it without you.This is a founding role in a new motion. Part process designer, part builder and deployer. You partner with an Account Manager who owns the stakeholders and the commercial; you own the process re-design and agent deployment. No two customers look the same, and there's no set playbook yet. You'll write it, and we’ll help.Key ResponsibilitiesEmbed with a customer's finance team, map and redesign their workflows AI-firstWire the integrations - pull data from ERPs, banks, and billing into LightConfigure, ship, and supervise AI agents in production until the customer trusts themHand back a workflow the customer runs themselves, and train their team from go-liveDiagnose the edge cases the playbook doesn't cover, and ship the answerMeasure & prove the impact against a week-0 baselinePartner two-in-a-box with your Account Manager, and pull in platform and AI engineering when you need themFeed repeatable patterns to the Product roadmapExperience & Qualifications3+ years close to how finance teams actually work - accounting, process design, consulting, or technical customer successYou build & tinker. Vibe coding, data pipelines, and LLM agents are tools you reach for, and you ship working software, not slidewareYou're fluent enough in finance to hold your own with a Controller on multi-entity, consolidation, and reporting - and to know when a request won't workYou bring structure to messy problems and move fast: diagnose, prototype, harden, shipYou're comfortable in front of a CFO and next to an engineer, and you've delivered without formal authority over anyoneYou use AI tools daily and have specific opinions on where they help in delivery and where they don'tFluent English; additional European languages a plusBonus #1: Solutions or integration engineering background; experience mapping and redesigning finance processes and with AI agents in production (evals, guardrails, …)Bonus #2: A finance / accounting qualificationYou'll probably struggle here ifYou need a spec handed to you - here you find the problem, then build the answerYou've only worked on internal products, never sat in front of a customerYou think "redesign the process" means "automate what exists". The job is to rethink it from first principles and inject AI where it makes senseYou want a big platform team to lean on - you'll have part-time support, not a...