Matthew Yun

Client: Absa

• Developed and implemented the Absa Home Loans Redesign project
• Unit tests were used to increase code coverage
• SonarLint was integrated within our Jdeveloper to increase coding standards and maintainability.
• Designing and implementing backend applications using Restful and SOAP services.
• Designing and implementing the frontend application (Angular, NGRX, Typescript)
• Guiding business on business processes, ways of work and best practices going forward
• Managed the deployment releases for the deployment pipelines (DevOps) (Jenkins & Rancher)

Technologies used:

●Java - SpringBoot

●Angular (Typescript) - NgRx

●Postgresql (SQL), Hibernate - HQL

●Rancher

●Git (Bitbucket, Github)

●Jenkins (CI/CD)

●Docker

●Keycloak

●Flowable (BPMN 2.0 process engine)

●Wiremock

●Jira

●Confluence

●Kibana

●Instana

●SonarQube

●ActiveMQ

• We manage a small team of developers to teach and upskill individuals who want to become software engineers but either lack the qualifications or the experience.

Technologies we teach:

●JAVA

●Springboot

●Postgresql

●Hibernate

●Angular

●Typescript

●Git

●Liquibase

●Jenkins

• Building the ultimate gaming hub on the blockchain

Technologies used:

●HTML

●Solidity

●Rust

Client: Absolut Alcohol

• We hosted an event for Absolut Alcohol, this event is called Coachella which was hosted in Decentraland(Metaverse space)
• Gamification was required for the event, we implemented a Simon says game, where players were required to mimic the NPC with the correct dance moves. The player with the highest score each day was rewarded an NFT.
• A scoreboard was updated frequently which kept the scores of all players, the scores had to be uploaded onto a secure backend server, which then was saved onto a PostgreSQL database.
• A permissions engine was also required in order for certain controls only to be used by certain players.
• Services were hosted on Heroku for scalability and ease of deployment

Technologie used:

●Decentraland - Typescript

●Java Sprintboot for backend development

●Git

●PostgreSQL Database

●Heroku

Client: Megchem

• We had to create an ERP solution for the Megchem under tight deadlines
• Support User Acceptance Testing (UAT) and Production (PROD) Testing Processes
• Created Restful webservices and implemented microservices. (Swagger)
• Using Gitlab for continuous environment integration, as well as for tracking tasks
• Building Keycard integration and Sage Integration
• KeyCloak was used for Authentication
• Built the Budgets, Timesheets and Credit Note Components

Technologies used:

●Java

●Angular

●Bootstrap

●Postgresql

●Sql

●Jenkins

●Git

●Hibernate

Client: Hollard Group (Insurance)

• Managing a small team and implemented solutions based on client requirements on the TIA Framework primarily in Oracle ADF and Java.
• Solely responsible for DevOps and managing all the different WebLogic environments, and CI/CD Pipelines (Jenkins and ANT scripts) in place.
• Implementing the upgrade of the TIA Framework and merging previous implementations to the upgraded TIA framework.
• Adding HTTPS compliance to our Dev, Test, CI, Pre-Prod and Production environments
• Consulted with business stakeholders to create solutions for business requirements.
• Integrating and deploying applications to optimize and monitor the performance on the production environment.

Technologies used:

● Java (Java 7)

●Application Development Framework - ADF

●SQL

●Weblogic

●TortoiseSVN

●Jenkins

●Oracle Linux

Client: Motovantage (Insurance)

• Upgrading the TIA Framework and ensuring that the merging of code was successful to the new version.
• Consulted with business stakeholders to create solutions for business requirements.
• Integrating and deploying applications to optimize and monitor the performance on the production environment.

Technologies used:

● Java (Java 7)

●Application Development Framework - ADF

●SQL

●Weblogic

●TortoiseSVN

●Jenkins

●Linux

• Developed and Implemented a ERP system for schools to manage their financials and staff.
• Was solely responsible to visit school's and talk to the main stakeholders on their pain points and what they would see beneficial to their business.
• The backend was built on Java using Postgresql Database and hibernate.
• The frontend development was using Angular in addition to bootstrap.
• Used Jenkins for continuous integration and deployment to our Development, QA and Production environments

Technologies used:

●Java

●Angular

●Bootstrap

●Postgresql

●Sql

●Jenkins

●Git

●Hibernate

Client: KPMG, SAB (South African Breweries)

• Responsible for mapping out integration points of the clients current systems, in order to determine the impact of migrating applications to a new system.
• Auditing was done to point out system vulnerabilities and what was causing performance issues.
• Liaising with business stakeholders to determine the priority on which business services should be migrated. This was to ensure that we delivered business value, right from the start.

• Designing the network infrastructure enabling a point to point and point to multi-point infrastructure over a long distance.
• Optimization of current network infrastructure, finding bottlenecks and allocating additional resources.
• Ensuring that security standards are met by configuring the mikrotik firewall to only accept incoming connections via port knocking.
• Creating multiple VLANS to ensure devices and hardware is segmented within the network.
• Forwarding DNS requests to ensure that devices must use a specific DNS provider (Cisco DNS).

Technologies/Hardware used:

●Mikrotik

●Ubiquiti Unifi

●Cisco DNS

Client: Redisa, Wesbank, University of Pretoria

• Responsible for running a small team delivering requirements using Oracle BPM(Business Process Management). This required BPM to be running as a stand alone application and required BPM to be exposed as a web service.
• Implemented the front-end design using Oracle ADF(Application Development Framework).
• Responsible to ensure automated testing was done using Oracle Application Testing Suite. Unit Testing was done in the mornings to ensure that all tests were passing. Unit testing, Functional testing as well as Load Testing were performed.
• Our project required developing in PHP for a short period of time before implementing the oracle stack.
• Created Integration points using Oracle SOA that integrated Oracle BPM, Oracle ADF, Oracle WebCenter and Oracle Transportation Management.

Technologies used:

●Java

●Oracle ADF

●Oracle SOA(Service Orientated Architecture)

●Oracle Database 11G

●Php

●Oracle Business Process Management

●Oracle ECM(Enterprise Content Management)

● Oracle Application Testing Suite