Lemfi

Senior Software Engineer - Foundations

London, Remote. Posted a month ago

The role

You will own and evolve core identity and onboarding services, build internal SDKs, and define cross-platform architectural standards. You will drive engagement platform capabilities and partner with infrastructure teams to improve reliability.

What you will do

  • Own and evolve core identity and onboarding services
  • Build and maintain internal SDKs and shared libraries
  • Define and champion cross-platform architectural standards
  • Drive engagement platform capabilities from spec to production
  • Partner with platform and infrastructure teams to raise reliability and observability
  • Tackle ambiguous problems like new country launches and regulatory requirements
  • Perform code reviews, architectural reviews, incident response, and mentoring

Required qualifications

  • At least five years of backend engineering experience with Go as your primary language in a production environment
  • Track record of building and scaling distributed systems
  • Experience working on or closely with platform or enablement teams
  • Comfortable with the full lifecycle including design, build, operate, and improve
  • Practical, demonstrable use of AI development tools in your daily engineering workflow
  • Strong opinions about system design, API contracts and service boundaries

Nice to have

  • Exposure to fintech, payments or identity/KYC systems
  • Experience building SDKs or developer-facing platform services consumed by other engineering teams
  • Prior work in a high-growth startup or scale-up (roughly 50-500 people)

About the company

LemFi is a financial engine for people who move countries. They provide remittances, multi-currency accounts, Savings, eSIMs and Credit.

Senior Software Engineer - Foundations at Lemfi | JobZoey