Role overview

As a Senior Software Engineer with the Lean Store team, you will own critical financial infrastructure that supports billions of dollars in transactions and underpins compliance requirements for major growth initiatives. Lean is the leading financial infrastructure provider in the Middle East, powering payments, account verification, and financial data access for over 350 clients including companies like Binance, Careem, and Etisalat.

Key responsibilities

Build and maintain core ledger functionality that supports SwiftX compliance use cases and regulatory requirements for ADGM scaling.
Own the billing system end-to-end, including its reliability, maintenance, and ongoing improvements.
Deliver the Mal integration, a strategically prioritized new integration with direct revenue implications.
Manage payouts infrastructure including incident response, client features, and data center-related work while ensuring SLA adherence on live revenue streams.
Drive proactive improvements to stability, performance, and scalability across the squad’s domain.
Provide design-level code reviews, contribute to refinement discussions, and write clear technical specifications.

Requirements

Strong backend engineering expertise in Java, Spring Boot, JPA/Hibernate, microservices architecture, and REST APIs.
Production experience with Kafka for building event-driven systems.
Data layer proficiency with PostgreSQL and Redis.
Familiarity with build and delivery tooling including Maven, Docker, and Jenkins.
Observability mindset with hands-on experience using Prometheus and Grafana in production environments.
Ability to own a domain independently, handle most backlog items without direction, and drive design decisions.
Demonstrated ability to write high-quality, secure, fully tested code with solid monitoring and alerting; clear communication of technical risk to both engineers and leadership; reliability on commitments and early escalation when needed.

What makes this role worth considering

You will be working on revenue-critical and compliance-sensitive infrastructure that processes millions in transactions at scale. The role offers meaningful equity stake in the business, competitive salaries, private healthcare, and flexible office hours, reflecting the company’s commitment to long-term alignment with team members.