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Sthembiso Maseko

@sthembisomaseko

Java Backend Developer at Tipp-Focus who digitised recruitment workflows and cut software licensing costs by approximately 40%.

South Africa

Message

At Tipp-Focus, I develop and maintain Java enterprise applications supporting government property and recruitment processes. I designed a recruitment management system to digitise internal workflows and reduced software licensing costs by approximately 40% by replacing a licensed PDF library with Apache PDFBox.

Previously, I developed payment services at First National Bank (FNB), where PostgreSQL query optimisation contributed to 25% faster transaction processing. Across banking and financial services roles, I’ve also developed Spring Boot microservices and RESTful APIs, supported production systems, and worked with tools including Docker, RabbitMQ, and CI/CD pipelines.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Java Developer

Current

Tipp-Focus

Oct 2024 - Present (2 years)

Develop and maintain Java-based enterprise web applications using Spring Boot, Servlets, JSP, Ebean ORM and Oracle. Implemented an API Gateway-based integration layer and reduced software licensing costs by approximately 40% by replacing iText with Apache PDFBox.

Java Spring Boot Servlet JSP Ebean Oracle REST APIs API Gateway Apache PDFBox LDAP Junit Mockito Root Cause Analysis

Java Backend Developer

First National Bank (FNB)

Feb 2024 - Sep 2024 (7 months)

Developed and maintained Java/Spring Boot payment services supporting high-volume financial transactions. Optimized PostgreSQL queries contributing to a 25% improvement in transaction processing performance and reduced average support resolution time by approximately 20%.

Java Spring Boot Microservices REST APIs PostgreSQL Liquibase CQRS Docker Rancher AppDynamics Grafana Graylog Harbor Bamboo Swagger

Java Developer

African Bank

Jun 2022 - Jan 2024 (1 year 7 months)

Developed scalable financial-services applications using Java, Spring Boot, Node.js, Koa.js, GraphQL and RabbitMQ. Implemented Redis caching strategies and applied TDD and automated testing practices to improve code reliability.

Java Spring Boot NodeJS KoaJS GraphQL RabbitMQ Redis REST SOAP Docker Docker Swarm GitLab CI CD SonarQube Test Driven Development

Full-Stack Java Developer

Consnet

Jul 2019 - May 2022 (2 years 10 months)

Developed enterprise applications supporting a large-scale SAP Hybris cinema-management platform using Java, Spring Boot, Spring MVC, Hibernate/JPA, Servlets, JSP and EJB. Designed and developed RESTful backend services consumed by Angular applications.