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Olawale Ibrahim

@olawaleibrahim

Message

I build secure, scalable Java Spring Boot backend services and transactional financial APIs.

Nigeria

Message

I'm building and maintaining Spring Boot backend services at Effect Network, including REST APIs for frontend applications, optimized PostgreSQL and Hibernate performance, and secure authentication and authorization.

I've also built Java 17 systems at FlexiSAF Edusoft and developed fintech, rental, and banking APIs using transactional operations, idempotency, optimistic locking, JPA, Spring Security, JWT, and PostgreSQL.

Experience

Work history, roles, and key accomplishments

Current

Java Backend Developer

Current

Effect Network

Sep 2023 - Present (3 years)

Developed and maintained Spring Boot backend services, designed REST APIs, optimized PostgreSQL queries and Hibernate performance, and implemented secure authentication and authorization.

Java Spring Boot REST APIs PostgreSQL Hibernate Spring Security Git Agile

Java Developer Intern

FlexiSAF Edusoft

Sep 2024 - Dec 2024 (3 months)

Built an Employee Management System using Java 17, Spring Boot, PostgreSQL, and Flyway, implemented JWT authentication and Spring Security, and designed relational databases using JPA and Hibernate.