Jannie Louwrens
Technical Lead at OPENCOLLAB
Western Cape, South Africa
Summary
👤
Senior🎓
Top SchoolJannie Louwrens is a seasoned Technical Lead with nine years of focused experience delivering enterprise Java and Spring-based solutions across the financial services sector. Currently leading engineering at OPENCOLLAB, he brings deep expertise in Java EE, Spring, SQL and XML combined with hands-on system analysis and mainframe reporting from a long tenure at Sanlam. He has a practical blend of legacy systems knowledge (JCL, Easytrieve, mainframe reporting) and modern server/application maintenance including ASP.NET, enabling reliable migrations and integrations. Known for mentoring and estimating across full SDLC phases, he pairs technical depth with clear recommendations that align engineering work to business needs. Based in the Western Cape with an NH Certificate in Information Technology from Technikon SA, he is comfortable bridging old and new technologies to keep critical systems productive. A pragmatic problem-solver, he often surfaces non-obvious operational fixes drawn from his cross-era platform experience.
9 years of coding experience
9 years of employment as a software developer
NH Certificate, Information Technology, NH Certificate, Information Technology at Technikon SA
Github Skills (38)
authentication10
spring-mvc10
jwt-authentication10
authorization10
jwt10
spring-boot10
spring-security-jwt10
spring-boot-security10
react-router10
react-router-v410
mysql9
keycloak9
spring9
security9
full-stack9
Programming languages (3)
Github contributions (5)
jannie-louwrens/spring-security-react-ant-design-polls-app
Sep 2018 - Apr 2022
Full Stack Polls App built using Spring Boot, Spring Security, JWT, React, and Ant Design
Contributions:21 commits, 6 PRs, 19 pushes in 3 years 7 months
ant-designreactjsspring-securityspringant
jannie-louwrens/spring-boot-keycloak-angular
Dec 2018 - Dec 2022
Securing a Angular frontend and a Spring Boot backend with Keycloak and Spring Security
Contributions:27 commits, 24 PRs, 32 pushes in 4 years
spring-bootsecuritykeycloakspringbackend
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