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Oluwamuyiwa Dosunmu

@oluwamuyiwadosunmu

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I build scalable backend platforms for fintech, marketplaces, events, and operations.

Nigeria

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I've built backend platforms for LogaXP's Flospay, Billspot, Credlock Africa, and WayToSuccessTutors, spanning financial processing, BNPL, utilities, tutor booking, and event services. I design scalable systems in Go, Node.js, NestJS, Java, and Spring Boot.

I've delivered Go microservices with gRPC and Protobuf, a multi-currency double-entry PostgreSQL ledger, event-driven NestJS systems, and monitoring through Prometheus and Grafana. I've also led engineers, improved a timesheet system to reduce administrative time by 80%, and helped APIs support over 40 million naira in monthly processing volume.

Experience

Work history, roles, and key accomplishments

Lead/Devops Engineer

LogaXP

Mar 2024 - May 2026 (2 years 2 months)

Engineered a high-performance Go microservices architecture using gRPC and Protobuf for high-throughput financial processing. Architected a multi-currency double-entry ledger system with PostgreSQL and SQLC, implementing strict ACID compliance and idempotency to prevent double-spending.

Go PostgreSQL Redis RabbitMQ gRPC Protobuf Docker Kubernetes Firebase Payment Gateways Sqlc Prometheus Zepto Mail Grafana OpenTelemetry DigitalOcean Caddy S3 Cloudflare GitHub Actions

Backend Engineer

Gatherplux

Mar 2024 - May 2026 (2 years 2 months)

Architected a modular service-oriented monolith using NestJS and TypeScript, decoupling core event domains onto isolated ports. Engineered scalable data models in MongoDB and orchestrated containerized deployments using Docker and Docker Swarm.

NodeJS NestJS MongoDB EC2 Redis RabbitMQ Firebase Payment Gateways Zepto Mail Grafana BetterStack DigitalOcean Caddy S3 Cloudflare GitHub Actions

Backend Engineer

WayToSuccessTutors

Jan 2024 - Feb 2026 (2 years 1 month)

Engineered and maintained the backend infrastructure for WayToSuccess, a tutor–student booking platform, leveraging Go and its concurrency model with a 4-Tier architecture. Directed a team of engineers to build a secure and user-friendly platform that seamlessly connects students with expert tutors.

Go MongoDB Redis Git Caddy EC2 S3 Koyeb DigitalOcean BetterStack Cloudflare Twilio Firebase Prometheus Grafana GitHub Actions Google API

Backend Engineer

FuturWave Technology

Oct 2023 - Jan 2026 (2 years 3 months)

Developed and maintained Betty, an FMCG solution, and designed the backend infrastructure and robust Internal Admin Facing platform for Betty Distribution Company. Integrated server monitoring and logging systems, ensuring high availability and improved system reliability.

Java Spring Boot PostgreSQL Redis Git Jira Docker Docker Swarm Heroku S3 AWS Lightsail EC2 Cloudflare BetterStack Firebase DigitalOcean Zepto Mail RabbitMQ

Lead Backend Engineer

Billspot Technology

Jul 2024 - Dec 2025 (1 year 5 months)

Developed and maintained the backend for a fintech solution with daily utilities and extended services on Android and iOS. Directed a team of engineers in the development, planning, and architecture of a user-friendly and secure platform for movement of funds.

NodeJS NestJS MongoDB PostgreSQL Git Caddy EC2 S3 Koyeb DigitalOcean BetterStack Cloudflare Zepto Mail Firebase Prometheus Grafana GitHub Actions

Backend Engineer

Credlock Africa

Sep 2024 - Jul 2025 (10 months)

Developed and maintained a BNPL solution for self-managed platforms. Contributed to re-engineering and fine-tuning APIs from Express to Nestjs, achieving a processing volume of over 40 million naira monthly.

NodeJS Express NestJS MongoDB PostgreSQL Redis Git Jest CapRover Docker Docker Swarm Heroku S3 AWS Lightsail Cloudflare DigitalOcean Termii GitHub Actions

Backend Engineer

Nextbewe Nigeria

Dec 2022 - Jan 2025 (2 years 1 month)

Developed and maintained Hamlet, a social networking platform, and the Internal Facing Attendance and Payroll Software. Contributed to a digital timesheet system, achieving an 80% reduction in timesheet administrative times.

NodeJS Java Spring Boot MongoDB Bitbucket Docker Docker Swarm DynamoDB AWS SNS S3 Cloudflare BetterStack Jest Firebase DigitalOcean Zepto Mail

Junior Software Engineer

Greenie Web

Mar 2021 - Feb 2023 (1 year 11 months)

Contributed to the innovative Greenie browser extension for web browsers, effectively lowering carbon emissions from images and web applications. Developed an MVP that outperformed Polkadot's blockchain in terms of environmental sustainability.

JavaScript TypeScript NodeJS Electron Jira Rust Amazon Route 53

Head of Operation

INTO Group

May 2021 - Nov 2022 (1 year 6 months)

Enhanced the application flow of the application team, leading to improved client conversion rates and customer service efficiency. Optimised operational efficiency by overseeing the hardware and software infrastructure for the entire staff.

Junior Backend Engineer

Skinned Orbital Technology

Sep 2021 - Aug 2022 (11 months)

Created an improved web and mobile API for the skinned orbital platform, resulting in a seamless sharing experience for users to showcase their artistic creations.

Python Django Django REST Framework C#.NET Core Azure Blob Storage Azure Virtual Machines Git

Computer-Science/ Biology Tutor

Start-Right Schools

Dec 2019 - Oct 2020 (10 months)

Promoted STEM education in the local government and contributed to education enrichment for students.

Backend Engineer

Hireafixer

Developed a scalable service-marketplace API using Node.js and NestJS, leveraging TypeScript to build a modular provider-consumer ecosystem. Modularized core business logic using NestJS dependency injection and implemented automated Audit Logging Decorators for resource tracking and security.