Looking for a job

Mubarak Abdulwahab

@moobarrac

Full-stack engineer (React, TypeScript, Node.js, AWS), 5+ years. Built payments across 7 providers. Looking for remote, international teams

Nigeria

Message

What I'm looking for

A remote role on a product team working at an international scale, where I own features end-to-end, from the data model and API to the interface. I do my best work with a clear problem, room to make the technical calls, and responsibility for how it runs in production. Especially interested in payments, developer tools, and data-heavy products.

At Reliance Health, I build claims, benefits, and pre-authorization tools used by healthcare teams across Africa. My most recent project was merging four separate country codebases (Nigeria, Egypt, Senegal, and Ivory Coast) into one system without downtime.

Before that, I owned a payments and wallet platform end to end on contract for a US fintech startup. I integrated seven payment providers across crypto and cards, built the webhook and retry logic so payments couldn't be duplicated or lost, and ran the AWS infrastructure and CI/CD myself. The system has processed several million dollars.

The problems I enjoy most are the ones users never see, like async workflows, data-heavy dashboards that stay fast, and systems that fail safely. Outside work, I build AI side projects, including a prediction-market training platform with an AI coach end-to-end

Experience

Work history, roles, and key accomplishments

Current

Full-stack Engineer

Current

Reliance Health

Mar 2022 - Present (4 years 7 months)

Own end-to-end delivery of Benefits and Exclusions, Diagnosis Standardization, Pre-Authorization automation, and Provider Management features. Build backend services in Node.js, Express, and Sequelize on PostgreSQL, and lead the rebuild of the Claims dashboard in React, TypeScript, and a microfrontend architecture.

NodeJS Express Sequelize PostgreSQL React TypeScript Tanstack Query SWR Micro Frontends Feature Flags Claude Cursor Copilot

Software Engineer

US-Based Fintech Startup

Nov 2023 - Mar 2025 (1 year 4 months)

Owned the payments and wallet platform end to end, integrating six deposit providers and AptPay payouts behind a single adapter. Built asynchronous payment workflows with idempotent webhook handling, a retry queue, and concurrency safeguards, and designed REST APIs with RBAC middleware.

NodeJS TypeScript REST APIs RBAC React Socket.IO AWS AWS ECS Lambda RDS DynamoDB S3 Amazon SQS Cloudwatch Docker GitHub Actions AWS CodePipeline Sentry

Frontend Engineer

Patricia Technologies

Sep 2021 - May 2022 (8 months)

Integrated multiple third-party payment gateways across customer and admin portals, improving transaction success rates and checkout completion. Built reusable component libraries in React and Material UI and worked closely with backend engineers on token authentication and session management.

React Material UI Payment Gateways Token Authentication Session Management Client Side Encryption

Frontend Developer

Universal Horizon Ltd

Apr 2020 - Sep 2021 (1 year 5 months)

Built and maintained ReactJS applications focused on user satisfaction and performance. Refactored legacy codebases to improve maintainability and readability, and improved application responsiveness through performance tuning and debugging.

React Performance Optimization Debugging Refactoring