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Payments engineerBackend engineerFull-stack engineerProduct engineer

Tomisin Leshi

Full-stack engineer. Five years at LINK building the systems that move money across African borders.

tomisinleshi.dev@gmail.comlinkedin.com/in/tomisin-leshigithub.com/tomisinleshiLagos, Nigeria · Remote-friendly

Value Insight

I joined LINK GLOBAL on the frontend. As the routing layer became the product, I moved to backend, designed the multi-corridor architecture, and ended up leading all technical decisions. I ship from API design to the React dashboard.

Proof of Work

  1. 1:Built the product UI and internal tooling, then moved to backend as the routing layer became the core product.
  2. 2:Designed the multi-corridor routing architecture that now handles 10+ corridors, including NGN, GHS, KES and ZAR.
  3. 3:$270K+ in Stellar Community Fund grants for building compliant cross-border payment infrastructure.
  4. 4:1st place, Base Batch hackathon Europe, for Checkout by LINK GLOBAL: on-chain merchant checkout on Base and Solana.

Where I Worked

LINK GLOBALlinkio.world
Aug 2021 to now
Engineering LeadDec 2023 to now
  • Own the technical direction of the payments platform: architecture, infrastructure, reliability and the engineering roadmap.
  • Designed the routing layer that picks the best provider for each currency pair. Three to four million dollars has moved through it.
  • Grew the engineering team from just me to four engineers across backend, frontend and security.
Technical leadJul 2023 to Dec 2023
  • Secured three Stellar Community Fund grants for infrastructure work.
  • Sat in on provider and partner negotiations and architecture reviews.
Full stack engineerApr 2022 to Jul 2023
  • Moved the v1 retail product onto the upgraded platform through an API service.
  • Set up the architecture and code review practices the team still uses.
  • Acted as the bridge between founding decisions and day-to-day delivery.
Frontend developerAug 2021 to Apr 2022
  • Built the product's first customer-facing screens, including onboarding and transaction flows for the v1 retail web app.
Strich, IncBackend engineer
Feb 2022 to Jul 2022

Introduced microservices for POS and wallet integration, and built the REST API behind daily mobile POS and wallet requests.

himylink AIFull stack engineer, part-time
Aug 2021 to Dec 2021

Built Python/Django endpoints for an AI business dashboard serving 2K+ concurrent users.

Cyprus RoboticsJunior software engineer, part-time
Nov 2020 to Apr 2021

Programmed control and telemetry for an autonomous underwater vehicle, with PID-based navigation in C++.

How I Build

Most bugs live in the gaps: between your API and the next service, between an event and its handler, between what you log and what actually happened. The stack I reach for makes those gaps visible.

TypeScriptNode.jsPythonPostgreSQLRedisKafkaStellarSolidityDockerAWSNext.jsReact

Education

Nile University of NigeriaOct 2026 to 2027

Executive Development Programs, Architectural and Building Sciences

Alchemy UniversityJan 2023 to Jul 2023

Blockchain, Web3 Developer

Eastern Mediterranean University2017 to 2021

Bachelor of Engineering, Computer Software Engineering

Activities: Robotics, basketball, Dance