As a Software Engineer at Dolfin, you will bridge the gap between core product development and customer implementation. Splitting your time equally between shipping full-stack features and leading technical integrations, you’ll ensure real SMBs go live on the platform. You’ll build reliable, AI-native financial infrastructure that handles high-stakes money movement.
Software Engineer at Dolfin
Join Dolfin, an early-stage fintech pioneer in Balderton’s Launched programme, building the first agentic financial ops API. We're replacing manual workflows with production-ready AI agents for invoicing and expenses. As a Software Engineer, you’ll split your time between shipping core platform code and leading technical implementations for major platform clients. This is a high-impact, full-stack role where you’ll define the future of embedded finance and work directly with founders to move the needle on a multi-million pound pipeline. If you thrive on technical ownership and customer impact, we want to hear from you.
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Location
London, United Kingdom
Compensation
£65k-£80k + Equity
Company
Dolfin
Role overview
Fintech SaaS1-10 employees
Dolfin builds agentic financial operations infrastructure for SMB platforms. Think Ramp intelligence, but white-label and embedded inside any B2B platform. Instead of another standalone finance tool, Dolfin provides native AI agents that operate autonomously inside the platforms SMBs already use.
What you will do
- Design and build event-driven, multi-tenant backend systems and frontend interfaces for the core agentic financial operations platform.
- Lead customer integrations end-to-end, serving as the primary technical architect on calls to unblock partner engineering teams and ship fixes.
- Deploy production-grade LLM workflows into financial environments, ensuring absolute correctness, auditability, and reliability for high-stakes money movement.
Who this is a fit for
- Possesses 2–4 years of experience shipping production software with a deep background in fintech API infrastructure, payments, or open banking.
- Demonstrates strong full-stack proficiency, comfortable owning both backend architecture and frontend implementation while operating in a fast-paced, unstructured environment.
- Displays a customer-centric engineering mindset, capable of translating integration friction into product improvements and building trust with external technical teams.
Why this role is remarkable
- Join a fast-moving team in the Balderton Launched programme with a multi-million pound pipeline and signed platform clients already in production.
- Work at the cutting edge of AI and fintech, building agentic workflows that handle real-world financial operations rather than simple demos or copilots.
- High-autonomy environment where you partner directly with founders to shape the engineering culture, product architecture, and technical roadmap from day one.
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I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
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If your profile’s a match and Dolfin wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.