Account Manager

Light; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Generous annual leave

Company off-sites

Career growth opportunities

Job summary

Light is building a new software category to modernise multinational finance. You will work at the heart of our Customer function, ensuring value is demonstrated to senior finance leaders and driving renewals and upsell across strategic accounts.

Your role involves partnering with Agentic Customer Engineers, managing engagements end-to-end, and shaping how we scale a renewals-focused, AI-enabled customer motion.

Qualifications

• 5+ years owning customers in account management, customer success, consulting, or a commercial delivery role with measurable outcomes.
• You hold your own with a CFO, can discuss multi-entity finance, ROI, and adoption without flinching.
• You've driven adoption and expansion, not just kept accounts warm.
• You bring structure to ambiguous engagements with clear plans and prioritisation.
• You've owned accounts and driven outcomes.
• You use AI tools daily and have strong opinions on where they help.
• Fluent English; additional European languages are a plus.

Responsibilities

• Own existing customer relationships and drive adoption, renewal and upsell.
• Ensure that Controllers, Finance Directors, and CFOs see the value Light brings.
• Make finance the hero—help them do their best work and get recognition.
• Partner two-in-a-box with Agentic Customer Engineers to maximise Light and AI agents.
• Spot an engagement going sideways before the customer does and fix it.
• Feed learnings back into the team playbook.

Skills

Account management

Customer success

Renewals & upsell

CFO stakeholder management

AI tool awareness

Fluent English

Job description

Retire the ERP

Light 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 Role

You'll sit at the heart of our Customer function and work with our most important customers. You'll make sure they understand the value Light brings them and drive renewals and upsell.

Your customers are Financial Controllers, Finance Directors and CFOs at fast-growing multinational SaaS and tech companies. Senior, technical, time-poor. They expect you to keep up, to tell them straight when something won't work, and to make their team the hero.

We're a young company, and we're just starting to renew contracts. In parallel, we're deploying Agentic Customer Engineers who help our customers make the most of Light. While they re-design customer workflows and deploy agents, you'll own the stakeholders, the adoption, and the commercial in this motion. There's no set playbook yet. You'll write it, and we'll help.

Key Responsibilities

• Own existing customer relationships and drive adoption, renewal and upsell

• Ensure that Controllers, Finance Directors, and CFOs see the value Light brings

• Make finance the hero - help them do their best work and get recognition for it

• Partner two-in-a-box with Agentic Customer Engineers to help customers make the most of Light and our suite of AI agents

• Spot an engagement going sideways before the customer does, and fix it

• Feed what you learn back into the playbook the team is building

Experience & Qualifications

• 5+ years owning customers in account management, customer success, consulting, or a commercial delivery role - with outcomes you can point to

• You hold your own with a CFO. You can talk multi-entity finance, ROI, and adoption without flinching, and you know when to push back

• You've driven adoption and expansion, not just kept accounts warm and sent QBRs

• You bring structure to messy, ambiguous engagements - clear plans, sharp prioritisation, and the judgement to know which details matter

• You've owned accounts and driven outcomes

• You use AI tools daily and have specific opinions on where they help and where they don't

• Fluent English; additional European languages a plus

• Bonus #1: Finance or accounting background

• Bonus #2: Experience in a forward-deployed, solutions-led, or professional-services model focused on renewals and upsell, ideally in the context of AI

You'll probably struggle here if

• You need a big support team, a mature playbook, and a manager on call to operate - this is a founding role with limited scaffolding

• You can't give a concrete example of telling a senior customer "no" and making it stick

• You love the status quo - this job is about change more than maintenance

• You've used ChatGPT once and weren't impressed - we go all in on AI at Light

The good stuff

In addition to being part of a great team and working in a really fun and innovative environment, we offer:

• A competitive salary + potential stock options

• Generous package of paid annual leave + public holidays

• Regular socials and company off-sites (last time was in Piemonte, next time is in Provence)

• A huge opportunity for career growth as you'll help shape a market-defining motion

The famous last words

Working at Light means you're embarking on an exciting journey to reshape the future of multinational financial operations. Our cheat-code is that we've built something like this before - and are now doing it again, only better. Our goal is to make global finance effortless and empower companies to make informed decisions.

Join the rocket ship while it's taking off