Backend Software Engineer

Omonemu J. Ovokeroye

Golang · APIs · Payment Systems

I design and build secure, scalable backend systems that move money and data without flinching — from Lagos to wherever the team happens to be.

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About

A backend engineer who likes things that don't break under pressure

Results-driven Backend Software Engineer with 3+ years of experience designing and building secure, scalable APIs and transaction-driven systems. Proficient in Golang (Fiber, Gin), RESTful API development, JWT authentication, Role-Based Access Control (RBAC), Redis caching, and CI/CD pipeline management. Experienced delivering payment workflows, wallet systems, and microservices for fintech and mobile applications across remote team environments. Passionate about clean architecture, system performance, and continuous delivery.

  • Based inDelta State, Nigeria — open to remote/hybrid roles globally
  • FocusGolang, RESTful APIs, payment & wallet systems
  • CurrentlyBackend Software Engineer at CREXZ (Remote)

Experience

Where the work has happened

Building the Golang backbone behind real-time, transaction-driven systems — remote, and still shipping.

  • Designed and developed RESTful APIs and microservices in Golang for secure, real-time transaction processing.
  • Integrated Redis caching to cut database load and improve API response times.
  • Architected and optimized MySQL/PostgreSQL schemas and server-side logic for scalability.
  • Managed CI/CD pipelines with GitHub Actions, reducing release cycle time.
  • Monitored performance metrics and improved platform stability and uptime.
  • Collaborated cross-functionally in a remote Agile environment.

Kept an existing app stable and predictable while it was still being actively used.

  • Debugged and resolved application issues, improving production stability.
  • Tuned performance to meet SLA thresholds.
  • Reviewed code via GitHub pull requests, enforcing best practices.
  • Implemented automated tests to reduce regression risk.

First real backend role — client-facing APIs and the habits that stuck since.

  • Built and maintained RESTful APIs for client-facing features.
  • Used Git/GitHub with feature branches and code review workflows.
  • Performed server maintenance and resolved software defects.

Skills

Tools I reach for

Languages & Frameworks

Golang Fiber Gin RESTful APIs Microservices Architecture

Auth & Security

JWT Authentication RBAC Firebase Auth

Databases

MySQL PostgreSQL Redis

DevOps & Infra

Docker GitHub Actions Cloud Storage Linux

Version Control

Git GitHub Code Review

Payments

Wallet Systems Transaction Processing Payment Workflow Design

Practices

Automated Testing Performance Monitoring Agile / Scrum

Projects

Things I've built and shipped

book-mine

Go

Desktop book-reading application built with Wails.

View repo →

bookapi

Go

Go-based backend API for managing bookings and reservations.

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toys_and_coys

Go

RESTful API for student data management.

View repo →

hearts

Go

A NoSQL-based version of the card game Spades.

View repo →

Gogame

Go

Rock-Paper-Scissors game built in Go.

View repo →

slackbot

Go

A Slack bot built in Go.

View repo →

Education

Grounding

Nov 2021 – Jun 2025

B.Eng, Electrical & Electronics Engineering

Achievers University · Ondo State, Nigeria

Oct 2018 – Mar 2021

National Diploma, Electrical & Electronics Engineering

Petroleum Training Institute · Delta State, Nigeria

Contact

Let's talk about what you're building

Open to remote and hybrid backend roles. The fastest way to reach me is email.

joshuaomonemu@gmail.com github.com/joshuaomonemu linkedin.com/in/ovoke-omonemu