About the role

The Lean Store team owns some of Lean's most revenue-critical and compliance-sensitive infrastructure — from payouts and billing to the regulatory ledger underpinning ADGM and SwiftX growth. As a Senior Software Engineer on this squad, you'll take full ownership of core systems, drive delivery on committed integrations, and ensure the reliability of infrastructure that processes millions in transactions. This is a hands-on execution role for an engineer who thrives on owning domains end-to-end.

About Lean

Lean is the leading financial infrastructure provider in the Middle East. We power some of the region's largest companies with APIs that enable payments, account verification, financial data access, and other critical financial infrastructure.

What started as the region's pioneering Open Banking platform and quickly became the de facto leader in account aggregation and payment initiation in the region is now becoming something bigger: a multi-product infrastructure company powering payments, data, and lending across MENA.

We've processed billions of dollars in transactions. We're trusted by 350+ clients — from Binance and Careem to Etisalat — and backed by General Catalyst, Sequoia, and Shorooq. Our $67.5M Series B was just the beginning. We're expanding into new markets, opening offices, acquiring businesses, and building capabilities that didn't exist here before.

What you'll own

Build and maintain core ledger functionality that underpins Lean's SwiftX compliance use case and regulatory requirements for ADGM scaling

Own the billing system end-to-end — its reliability, maintenance, and ongoing evolution

Deliver on the Mal integration, a strategically committed new integration with direct revenue implications

Cover ongoing payouts infrastructure — incident response, client features, and DC-related work — ensuring SLA adherence on a live revenue stream

Drive stability, performance, and scalability improvements proactively across the squad's domain

Give design-level code reviews, contribute to refinement, and write clear technical specifications

What we're looking for

Must-have:

Strong backend engineering in Java, Spring Boot, JPA/Hibernate, microservices, and REST APIs

Production experience with Kafka for event-driven systems

Data layer proficiency: PostgreSQL and Redis

Familiarity with build and delivery tooling: Maven, Docker, Jenkins

Observability mindset: Prometheus and Grafana in production environments

Experience with AI-assisted engineering tooling (e.g. Claude) in day-to-day work

Ability to own a domain independently — handle most backlog items without direction, drive design decisions, and contribute to tech specs

Writes high-quality, secure, fully tested code with solid monitoring and alerting

Clear communicator — able to explain technical risk to both engineers and leadership

Reliable on commitments; unblocks the squad and escalates early when needed

Nice-to-have

Fintech or payments engineering background

Experience working within regulated financial environments

Mentorship experience with junior engineers

NB. While we think the above experience could be important, we’re keen to hear from people that believe they have valuable experience to bring to the role. If you identify with the team and mission, but not all of our requirements, then please still apply!!

Why Join us?

We’re building the financial infrastructure for MENA. Not as a slogan, as a fact.

Since 2019, we’ve become the first regulated Open Banking and Open Finance company operating across the UAE and Saudi Arabia. We’ve processed billions of dollars. We connect millions of accounts. We enable companies like Binance, Careem, and Etisalat to build products that were previously impossible in this region.

Our recent $67.5M Series B from General Catalyst and Sequoia isn’t just validation: it’s fuel. We’re expanding into new markets, launching new products, and setting the pace for what financial innovation looks like in MENA.

We solve hard problems. We move fast. We hold ourselves to a high standard. And we’re looking for people who’ve done this before to help us do it right.