Open to opportunities

ajadi funmibi

@ajadifunmibi

Message

I am a results-driven Backend Engineer specializing in Java and Spring Boot.

Nigeria

Message

What I'm looking for

I seek backend roles building scalable Java/Spring systems with cross-functional teams in healthcare, finance or education, focusing on performance, security, and growth toward blockchain and system architecture.

I am a backend engineer with four years of experience designing and developing robust backend systems and APIs, primarily using Java and Spring boot. I have delivered scalable solutions across healthcare, financial services, and education, focusing on performance, security, and data integrity.

I build and optimize database schemas using Mssq, Mongodb and Hibernate, leverage native queries and caching to reduce latency, and design secure RESTful APIs to enable smooth frontend-backend communication. I collaborate closely with product managers and frontend teams, document systems thoroughly, and contribute to code quality through reviews and testing.

I also taught software engineering courses and mentored aspiring developers, and I am actively expanding into blockchain and smart-contract development to broaden my impact.

Experience

Work history, roles, and key accomplishments

Backend Developer

Calm Global

Aug 2024 - Jan 2025 (5 months)

Designed and implemented the backend architecture for an Electronic Healthcare Management System used across multiple Nigerian hospitals, enabling secure management of patient records, appointments, and billing. Optimized database schemas and native SQL queries and implemented caching and API security to improve performance and data integrity.

Java Spring Boot Microsoft SQL Server RESTful APIs Caching API Security Performance Optimization

Software Engineer/Instructor

Semicolon Limited

Apr 2022 - Jun 2023 (1 year 2 months)

Designed, developed, and maintained software applications while leading code reviews and pair-programming to improve code quality and team productivity. Created and delivered instructor-led curricula and hands-on exercises in Java and Python, mentoring students and assessing progress.

Java Python Software Development Code Review Pair Programming Curriculum Design Teaching Agile

Software Engineer

Learnspace Africa

Dec 2021 - May 2023 (1 year 5 months)

Built and maintained the backend infrastructure for a student loan platform using Java, Spring Boot, MongoDB, and Hibernate, ensuring secure handling of financial data. Developed and documented RESTful APIs and authentication/encryption mechanisms and participated in performance testing and Agile ceremonies.