Senior Software Engineer - Credit

Posted 12 Days Ago
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London, Greater London, England, GBR
Hybrid
Senior level
Fintech • Payments • Financial Services
The Role
Build and operate reliable backend services for credit products, covering loan origination, underwriting, repayment, and collections. Design distributed systems, state machines, and service boundaries while ensuring data integrity, compliance, observability, and production reliability. Collaborate with product and compliance teams, use AI coding tools responsibly, and help establish engineering practices within an early-stage credit tribe.
Summary Generated by Built In

LemFi (Series B) is building the go-to financial app for the Global South.


Moving to a new country shouldn’t mean starting from zero. That's why our team of 400+ spanning 20+ countries is building a financial ecosystem that helps immigrants stay connected to home, build stability, and create wealth regardless of where they are from or where they live.


What began as fast, affordable remittances is now evolving into a complete platform for multi-currency accounts, payments, credit, and long-term financial growth.


With millions of users across the globe, we process over $1B in monthly transactions to 30+ countries, proving that borders shouldn't limit financial opportunity.

About the role

LemFi's Credit tribe is early and moving fast. We're building the infrastructure that will power lending products for millions of people who've historically been locked out of fair credit - immigrants, diaspora communities, and the financially underserved across our 21 operating markets. This is a ground-floor opportunity: the tribe is being built right now, and the systems you design today will be the foundation everything else sits on.

We're looking for a Senior Software Engineer to join the Credit tribe and own core backend services end-to-end. You'll be working primarily in Go, with some existing Java services in the mix - switching between them is not the blocker, deep engineering craft and an instinct for how credit products behave is. We move fast and we don't micromanage, which means you'll need to bring the domain awareness to make the right call before anyone has to tell you.

What you'll build and own
  • Design, build and operate high-reliability backend services that power LemFi's credit products, from loan origination and underwriting through to repayment and collections.

  • Make the right architectural calls independently - data residency, service boundaries, state-machine design for loan lifecycles - without needing to be told what a credit-safe system looks like.

  • Own your services in production: instrument them, monitor them, debug them, and hold the bar on reliability and correctness.

  • Work closely with product and compliance to translate credit-domain requirements into clean, testable, maintainable code.

  • Use AI coding tools actively to accelerate delivery and improve test coverage, while taking full ownership of the correctness of every line that ships.

  • Contribute to growing the tribe - as one of the earliest engineers you'll help set the engineering culture, review others' work, and raise the bar on how we build.

Your experience
  • Strong backend engineering in Go; Java experience is a plus given our existing services, but Go is the primary language.

  • Meaningful fintech experience - you understand how financial systems behave under load, under regulation, and under audit.

  • Exposure to credit products (lending, underwriting, repayment, collections) at any level - even adjacent - so you arrive with the right instincts, not just a willingness to learn them.

  • Solid grasp of distributed systems design: event-driven architecture, service boundaries, data consistency, and failure modes.

  • You care about correctness and data integrity as much as velocity - you've worked in environments where getting it wrong has real consequences for real people.

  • Comfortable operating with autonomy in an environment where the spec is never fully finished and the team is still being built.

Nice to have
  • Direct experience building credit decisioning, risk scoring, or loan management systems.

  • Experience in a high-growth startup or scale-up where you helped establish engineering foundations from scratch.

  • Familiarity with regulatory and compliance constraints specific to consumer credit (e.g. FCA, data protection requirements for credit data).


Why Join LemFi?

Love shouldn’t be expensive, yet those working hardest for their families often face predatory fees and banking exclusion. We're changing this.

At LemFi, you won’t be just a cog in a machine. Whether designing products, scaling operations, or telling our story, you’ll tackle complex challenges with real, immediate impact. Your work goes beyond metrics - it puts money back in families’ pockets and offers access to the previously excluded. Join us to make a meaningful difference, where high performance is a lifeline for millions.
You can connect with us on LinkedIn and Instagram and if you haven't already, download the app on the App Store or Google Play.

Recruitment Agencies Notice

LemFi does not accept unsolicited CVs from recruitment agencies. We work only with agencies on our preferred supplier list, and only when we’ve asked them for their support. Any CVs sent to us outside this arrangement will not incur a fee.

 

Skills Required

  • Strong backend engineering experience in Go
  • Meaningful fintech experience
  • Exposure to credit products such as lending, underwriting, repayment, or collections
  • Solid understanding of distributed systems design, including event-driven architecture, service boundaries, data consistency, and failure modes
  • Experience working in environments where correctness and data integrity have significant consequences
  • Ability to work autonomously in an evolving, high-growth environment
  • Java experience
  • Direct experience building credit decisioning, risk scoring, or loan management systems
  • Experience at a high-growth startup or scale-up establishing engineering foundations
  • Familiarity with consumer credit regulatory and compliance requirements, including FCA and data protection requirements
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The Company
HQ: London
121 Employees
Year Founded: 2020

What We Do

International Payments for everyone. Send money to friends and family in 20+ countries

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