Open to opportunities

Ejereje Emmanuel

@ejerejeemmanuel

Message

Backend and Full-Stack Developer delivering secure, production-grade SaaS solutions.

Nigeria

Message

What I'm looking for

I seek roles building secure, scalable backend and full-stack systems where I can deliver production-grade SaaS, improve security, and drive measurable business impact.

I am a results-driven Backend and Full-Stack Developer with entrepreneurial experience building and deploying production SaaS systems that solve real business problems. I designed and launched Smart Sales App serving five active companies, eliminating receipt fraud and enabling real-time sales tracking through a Spring Boot, Kotlin, React, and PostgreSQL stack.

I specialize in secure, scalable web applications with expertise in JWT authentication, CSRF protection, role-based access control, and multi-tenant architectures. I have completed formal backend training and internship experience, deploy production services to Linux VPS with SSL, and consistently deliver measurable business impact by reducing fraudulent transactions and improving operational transparency.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

Smart Sales App

Founded and built a production SaaS serving 5 companies, delivering tamper-proof digital receipts, real-time sales tracking, and multi-tenant role-based access to reduce fraud and internal theft.

Spring Boot Kotlin Spring Security React TypeScript PostgreSQL JWT

Backend Developer Intern

Ventis Inc.

Completed an intensive backend engineering academy and internship, developing Spring Boot and Kotlin services with JWT authentication and PostgreSQL persistence in an agile team environment.

Spring Boot Kotlin JWT PostgreSQL Agile

Backend Developer

Independent Project

Architected and developed a hotel management backend using Spring Boot and Kotlin, implementing booking workflows, secure JWT authentication, and transaction processing for payments.

Spring Boot Kotlin JWT MySQL PostgreSQL Authentication

Education

Degrees, certifications, and relevant coursework

Niger Delta University

Bachelor's Degree, Biological Sciences

Completed a Bachelor's degree in Biological Sciences at Niger Delta University.

Ventis Academy

Training Certificate, Backend Engineering

Completed backend engineering training focused on Java/Kotlin backend development, API design, database management, and production deployment practices.