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Chisom Emmanuel

@chisomemmanuel

Backend engineer who built payment and wallet infrastructure at FINTRUST TECHNOLOGIES and evaluates code for security, reliability, and quality.

Nigeria

Message

At FINTRUST TECHNOLOGIES, I led backend architecture for payment and wallet infrastructure and designed secure RESTful APIs. I also implemented encryption, logging, and audit-ready systems for transaction-related infrastructure.

At BANDIAN, I architected and maintained backend services for data processing systems and led optimization initiatives focused on performance and scalability. Across my backend roles, I’ve worked on API design, database performance, code review, and technical quality assessment.

Experience

Work history, roles, and key accomplishments

Backend Developer

Bahoju Tech

Jan 2026 - Mar 2026 (2 months)

Built scalable backend services for internal data processing and reporting systems using Node.js and Express.js. Designed and maintained database structures and developed secure API endpoints with data validation and error handling.

NodeJS ExpressJS REST APIs PostgreSQL MongoDB Data Validation Error Handling Production Monitoring Debugging Performance Optimization

Senior Backend Engineer

Fintrust Technologies

Jan 2025 - Dec 2025 (11 months)

Led backend architecture for payment and wallet infrastructure supporting high-volume transactions. Designed secure RESTful APIs, implemented encryption and logging, and optimized PostgreSQL performance.

NodeJS ExpressJS REST APIs PostgreSQL Encryption Logging Secure Coding NDPR Compliance cloud deployment Monitoring Scalability Mentorship

Senior Software Engineer

Bandian

Jan 2023 - Dec 2024 (1 year 11 months)

Architected and maintained backend services using Node.js, NestJS, and MongoDB for high-volume data processing systems. Led optimization initiatives and managed Git workflows and code reviews.

NodeJS NestJS MongoDB Data Processing Performance Optimization Git Code Review Data Pipelines Technical Documentation Mentorship

Senior Backend Engineer

Paylink Systems

Jan 2023 - Dec 2023 (11 months)

Designed microservices for billing, subscription, and transaction systems using Node.js and Express.js. Engineered PostgreSQL schemas with ACID compliance and implemented secure authentication with JWT and RBAC.

NodeJS ExpressJS Microservices PostgreSQL ACID JWT RBAC Caching Indexing Query Optimization CI CD Docker

Junior Backend Engineer

Larana

Jan 2021 - Dec 2022 (1 year 11 months)

Led backend development for web platforms using Node.js and Express.js. Designed PostgreSQL database structures and implemented secure authentication flows.

NodeJS ExpressJS PostgreSQL Query Optimization Authentication Agile Sprint Planning

Junior Backend Engineer

Soair Africa

Apr 2022 - Dec 2022 (8 months)

Designed and developed server-side systems using Node.js and Express.js. Built and integrated RESTful APIs and implemented email services using Nodemailer.

NodeJS ExpressJS REST APIs Nodemailer System Reliability Performance Deployment