Open to opportunities

Leonardo Martins

@leonardomartins1

Message

Senior software engineer and tech lead specializing in backend and distributed systems.

Zimbabwe

Message

What I'm looking for

I seek roles where I can lead backend and distributed-systems work, mentor engineers, drive modernizations, and align technical execution with product impact.

I am a Senior Software Engineer and Tech Lead focused on backend and distributed systems, with hands-on experience building event-driven platforms and high-throughput services. I design resilient architectures, gRPC and REST APIs, and scalable microservices primarily using Go and modern cloud technologies.

Across startups and large companies, I have led migrations, raised test coverage, improved performance, and mentored engineers—driving reductions in incidents and page load times while aligning technical work with product goals. I take pride in translating business needs into robust technical solutions and fostering engineering culture.

I contribute to open source and maintain a technical blog covering programming languages, distributed systems, and engineering practices, reflecting a continuous focus on learning and sharing knowledge.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Plannatech

Mar 2024 - Present (2 years 3 months)

Architected and built event-driven Go microservices with RabbitMQ, scaling to 1M+ messages/sec and improving resilience using advanced fault-tolerance and retry patterns; designed gRPC and REST APIs for external integrations.

Go RabbitMQ gRPC REST APIs Distributed Systems Fault Tolerance Scalability Kubernetes

Senior Software Engineer

SecurityScorecard

Mar 2023 - Mar 2024 (1 year)

Built load-testing tooling with k6 and headless browsers to surface bottlenecks and led backend/database optimizations that reduced page load time from ~5s to ~2s while aligning improvements with UX goals.

Load Testing Backend Performance Tuning Databases Monitoring UX collaboration

Senior Software Engineer

Uber

Jun 2022 - Mar 2023 (9 months)

Developed Go + gRPC backend services for Uber Travel, increased test coverage from ~70% to 90% reducing production incidents, and authored documentation to streamline monorepo navigation and onboarding.

Go gRPC Testing CI CD Reliability Backend Distributed Systems

Technical Lead

Oncar

Sep 2021 - Jun 2022 (9 months)

As founding engineer delivered the first production-ready platform enabling product launch, mentored engineers and collaborated with founders to translate business needs into technical solutions.

Technical Leadership Mentorship Platform Delivery Architecture Agile Practices Go Team Management Collaboration

Software Engineer

SumUp

Jan 2021 - Sep 2021 (8 months)

Migrated a Ruby on Rails MVP to Go microservices and built Kafka-based services to process merchant transactions, improving scalability and maintainability while raising code quality and test coverage.

Go Kafka Microservices Test Coverage CI CD Payments Distributed Systems

Software Engineer

Swap

Jul 2020 - Jan 2021 (6 months)

Designed and implemented a Virtual Cards feature end-to-end, provisioned scalable infrastructure with Terraform and AWS, and contributed to achieving PCI compliance for critical features.

Virtual Card Terraform AWS PCI Compliance Infrastructure as Code Backend Development & Security Scalability

Tech Lead

Quero Educação

Nov 2019 - Jul 2020 (8 months)

Promoted from intern to Tech Lead, led migration from a Ruby on Rails monolith to microservices and frontend, mentored team members, and delivered developer-focused seminars on functional programming practices.

Technical Leadership Ruby on Rails Microservices Elixir Mentorship Software Architecture Developer Training