Lead Engineer

nineDots.io; Greater London; On-site; GBP 72,000 - 120,000; Full time

Benefits offered by this job

Equity

Job summary

nineDots.io in London is seeking a Lead Engineer to own the platform, work directly with the founder, and shape the engineering team as the business scales.

You’ll guide the Java Spring Boot microservices stack, drive architecture improvements for enterprise readiness, and partner with product to decide what to build next. This hands-on role involves coding, customer interaction, and eventually building out the engineering function with hiring and process design.

Qualifications

• Open banking/open finance experience in fintech.
• Strong backend engineering with Java Spring Boot.
• Experience with enterprise integrations and security.
• Willing to own technical decisions end-to-end.

Responsibilities

• Own platform architecture and drive enterprise readiness.
• Hands-on coding and mentoring the team.
• Collaborate with founder on product direction.
• Lead hiring and engineering practices as the company grows.

Skills

Open Banking

Financial integrations

Security

Tech leadership

Tools

Java Spring Boot

Microservices

API Integrations

Job description

Lead Engineer | Fintech London / UK | Up to £120k + equity

Take ownership of the platform, work directly with the founder and build the engineering team around you. The technical guidance, with scope to grow into CTO as the business scales.

What are you building?

A platform that brings pensions, investments, insurance and other financial data into one place. It gives financial advisers and brokers a complete view of their customers’ finances, using AI to make sense of documents and automate the admin that slows down advice.

There’s an existing Java Spring Boot platform with around 30 microservices. You’ll take it through the next stage: making it ready for enterprise customers, owning the architecture and integrations, and deciding what gets built next alongside the founder.

You’ll be hands-on with the code, close to customers and influential in product decisions. As the business grows, you’ll hire the team and shape how engineering works.

What makes it worth a conversation?

Backing from Passion Capital, early investors in Monzo, GoCardless and Marshmallow. Early customer commitments, 11 brokerages on the waitlist, and a pilot agreement progressing with a major international insurance broker.

You’ll need:

• Open banking / open finance experience, at somewhere like TrueLayer, Plaid or Yapily, or building products using their services.
• Strong backend engineering, comfortable owning Java Spring Boot and microservices.
• Experience with financial integrations, security and the expectations of enterprise customers.
• The appetite to take ownership in an early-stage business and stay involved from technical decisions through to delivery.

London preferred; elsewhere in the UK considered with occasional travel.