Java Backend Engineer

i*********s

Bwari Abuja
£3000 / month

About Candidate

Education

B
Bachelor of Computer science 2024
Federal University Lokoja

Experiences

J
Java Backend Engineer March 2025 - Present
Turing

Architected and deployed Spring Boot microservices using Java 8+ with JWT authentication andHibernate/JPA ORM, improving API response times by 25% for client applications
• Implemented business process automation using Kogito for workflow management and decision automation
• Collaborated with cross-functional Agile/Scrum teams via CI/CD pipelines and code reviews, enhancing code quality and achieving a 98% test coverage rate
- Worked with OracleDB and PostgreSQL databases for enterprise-level data management
- Containerized applications using Docker for consistent deployment across environments
- Crafted prompts for LLM training and optimization

S
Software Developer Intern June 2024 - November 2024
Nigeria Korea frienship institute

- Debugged Java 8+ backend components, resolving 90% of critical bugs in production systems
- Enhanced UI responsiveness with CSS/JavaScript optimizations, improving page load times by 15%
- Normalized SQLite database schemas, reducing data redundancy by 25%
- Migrated backend modules to Spring Boot, resolving Hibernate/JPA configuration issues and improving data retrieval speeds by 20%
- Optimized SQL queries for PostgreSQL and OracleDB databases, reducing query execution times by 35%
- Practiced TDD with JUnit in Agile sprints, increasing unit test coverage from 60% to 85%
- Participated in daily stand-ups, sprint planning, and retrospectives following Scrum methodology

J
Java Developer/Engineer 2020 - March 2025
Freelance

- Developed secure Spring Boot and Quarkus microservices with Java 8+ and RESTful APIs usingPostgreSQL, MongoDB, OracleDB, Kafka, Spring Cloud and JWT authentication, enabling 99.9% uptime for client platforms
- Implemented Hibernate/JPA for efficient ORM and database interactions across multiple SQL databases
- Designed and deployed microservices architecture following industry best practices and design patterns
- Automated testing workflows with Maven and JUnit, reducing bug rates by 30% in production environments
- Partnered with distributed engineering teams in Agile/Scrum environments to implement CI/CD pipelines using Git and Docker, cutting deployment cycles by 40%
- Managed version control and collaborative development using Git and GitHub

Skills

Java
95%
Spring Boot
95%
MySQL, PostgreSQL, MongoDB
90%
Docker, Git, GitHub
80%
Spring Cloud and Microservices
80%
Kafka
70%
Spring security, JWT, OAuth
80%
JPA, Hibernate
90%

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