Middle Backend Engineer

About our Company:

LemFi (YC S21, Series B) is revolutionizing cross-border financial services for immigrants through its multi-currency platform, processing over $1 billion in monthly transactions. We provide instant remittances, foreign exchange services, and multi-currency accounts, all in one seamless experience.

Join a fast-growing, multinational fintech startup where collaboration, humility, and ownership define how we work. At LemFi, we’re passionate about solving complex financial challenges while delivering an exceptional customer experience across borders. Our teams are deeply committed to their craft and regularly contribute beyond their core responsibilities to help each other succeed.

With 300+ employees across 15+ countries, our platform supports twelve currencies and integrates directly with local banks and mobile money providers, ensuring fast, low-cost transactions. But we’re not stopping at payments. LemFi is building a comprehensive financial ecosystem empowering immigrants with the financial tools they need to thrive—wherever they go.

Our vision: To build the first full-stack financial services hub for the world’s immigrant population. 🚀

Who You Are:

We’re looking for a Backend Engineer to help grow and enhance our Remittance platform. In this role, you’ll focus on integrating new payout partners, enabling additional destinations and currencies for our customers. This is a mission-critical part of our business, offering a unique perspective on global money movement and fast-track opportunities for growth and impact.

• Impact-Oriented: You care deeply about solving real problems. You focus on delivering reliable, maintainable solutions that drive clear business and user value.
• Technically Grounded: You have solid experience building and operating scalable backend systems using Go Lang and/or Java. You write clean, production-ready code and apply good judgment to architecture, performance, and reliability trade-offs.
• Collaborative by Nature: You work well with engineers, product managers, and business stakeholders alike. You listen carefully, communicate clearly, and believe in shared success over individual credit.
• Ownership Mindset: You take full responsibility for the systems you build from design and development to monitoring and incident response. You don’t wait to be told what to do and are comfortable making decisions within your domain.
• Always Improving: You’re naturally curious and seek opportunities to grow your technical skills and expand your understanding of the broader system. You're open to feedback and use it to get better.

Job Description & Responsibilities

Engineering & Architecture

• Design, implement, and test new backend features with an emphasis on simplicity, scalability, and security.
• Create technical documentation to support proposed solutions and feature development.
• Apply best practices in automated testing as a fundamental part of your development workflow.
• Uphold strong data consistency standards and prioritize privacy and security in all code handling financial transactions.
• Write clean, maintainable, and self-documenting code.
• Stay current with modern backend patterns to help build a cost-effective, cloud-native architecture.

Operations & Reliability

• Rollouts new features gradually using techniques such as feature flags, blue-green deployments, and traffic ramp-ups.
• Build and monitor SLAs and SLOs with automated product metrics and alerting.
• Participate in the on-call rotation as part of our “you build it, you run it” ownership model.

Ownership & Collaboration

• Take end-to-end ownership of features from concept to deployment and post-release support.
• Collaborate closely with cross-functional teams including Engineering, QA, and Product.
• Ensure your work aligns with international financial regulations and customer needs.

Qualifications:

Technical Expertise:

• 3+ years of professional experience in backend development (Go Lang or Java).
• Experience with working with observability stack (logging, metrics, tracing).
• Expertise in building RESTful APIs following company standards.
• Understanding of Domain-Driven Design and Modularization concepts.
• Asynchronous processing with approaches like co-routines, messages queuing and event streaming (Kafka).
• Experience working with relational databases (PostgreSQL) such as evolving schemas, transaction isolation levels and writing optimal SQL queries.
• Understanding caching patterns (Redis).
• Experience with Docker and similar container technologies

Soft Skills:

• Strong problem-solving and analytical skills with a detail-oriented mindset.
• High sense of ownership and accountability for delivering top-quality work.
• Excellent communication and collaboration skills, with the ability to work effectively in a team.

Nice to Haves:

• Experience setting up CI/CD pipelines (GitHub Actions)
• BS/MS degree in Computer Science, Engineering or a related subject
• Location- Latvia, Riga