Ushahemba Shir
Senior Software Developer
Lagos, NigeriaWhatsApp: +234 901 851 5257ushahembashir@gmail.com
Professional Summary
Backend Developer with 6+ years of experience building scalable Node.js/NestJS services, REST APIs, and CI/CD pipelines. Proven track record improving system performance, optimizing databases (PostgreSQL, MongoDB), and leading microservice migrations. Skilled in AWS deployments (ECS, Lambda, S3), Dockerized environments, and API documentation with Swagger.
Professional Experience
Backend Engineer
Soft Alliance - Lagos, Nigeria
Mar 2025 - Present
Contract
- •Architected and delivered multi-gateway payment integrations (Interswitch, Remitta, Flutterwave, Credo), enabling secure payment processing, authentication, and webhook-driven confirmations
- •Built real-time disbursement and government collection systems via Central Bank of Nigeria APIs, improving platform performance by 3× through database and caching optimizations
- •Owned development of a secure Payment Solution Service Provider (PSSP) admin platform with RBAC, key management, IP whitelisting, and 2FA authentication, supporting enterprise-grade payment operations
Senior Backend Developer
Octosoft Technologies Ltd - Remote
Sept 2023 - July 2025
Full-time
- •Built REST APIs, laboratory module and dynamic form builder service powering 200+ hospitals
- •Led CI/CD automation with GitHub Actions, cutting release time by 50%
- •Developed secure payment module integrating internal and 3rd-party gateways
Full Stack Developer
Nawill Technology Ltd - Remote
Mar 2019 - Aug 2023
Full-time
- •Delivered full-stack solutions with Node.js & React including real-time chat system
- •Mentored junior developers and enforced clean architecture & testing best practices
Technical Skills
Languages & Frameworks
Node.js
NestJS
TypeScript
JavaScript
Java
Spring Boot
Express.js
Elixir
Phoenix LiveView
Databases and ORMs
PostgreSQL
MongoDB
MySQL
Redis
TypeORM
Prisma
Mongoose
Sequelize
Cloud & DevOps
AWS (Amplify, ECS, Lambda, S3)
Docker
GitHub Actions
CI/CD
Architecture
Microservices
REST APIs
Modular Service Design
Event-Driven Systems
Tools
Swagger
Linux
Git
VS Code
Postman
Jest
Mocha
Chai
ESLint
Prettier
Education
MEST Africa
Business, Technology & Communication
2023 - 2024
Decagon Institute
Software Engineering & Leadership
2022
University of Nigeria
B.LIS / Economics
2016