| Core | Server Side | Java | The Java language up to version 11 |
| Proficient | Server Side | Python | The Python language up to version 3.x |
| Familiar | Server Side | JHipster | Application generation |
| Core | Server Side | Java EE | Application framework up to version 8 |
| Core | Server Side | JPA | ORM using Hibernate and EclipseLink |
| Familiar | Server Side | EJB 3.x | Session beans with annotations |
| Familiar | Server Side | Servlet | Basic service framework |
| Familiar | Server Side | JAX-RS | RESTful web services |
| Familiar | Server Side | JMS | Java Message Service |
| Familiar | Server Side | JTA | Java Transaction API |
| Familiar | Server Side | CDI | Context and Dependency Injection |
| Familiar | Server Side | Bean Validation | Validation using annotations |
| Core | Server Side | Spring Framework | Application framework |
| Familiar | Server Side | Spring Boot | Create stand-alone Spring applications |
| Core | Server Side | Spring MVC | MVC framework |
| Familiar | Server Side | Spring Web Flow | Stateful business task processing |
| Familiar | Server Side | Spring Data | Data access framework |
| Familiar | Server Side | Spring Security | Authentication and access-control |
| Familiar | Server Side | Spring Session | Container neutral web session |
| Familiar | Server Side | Spring Web Services | XML web services |
| Familiar | Server Side | Spring Roo | Application generation |
| Core | Server Side | Spring Batch | Batch processing |
| Core | Server Side | Spring Integration | Enterprise application integration |
| Core | Server Side | XML | Document markup language |
| Familiar | Server Side | XSD | XML schema definition |
| Familiar | Server Side | XSLT | XML transform language |
| Core | Server Side | JSON | Data interchange format |
| Familiar | Server Side | Thymeleaf | HTML templating engine |
| Core | Continuous Integration | Git | Distributed version control |
| Core | Continuous Integration | Apache Subversion | Centralized version control |
| Core | Continuous Integration | JUnit | Unit testing framework |
| Core | Continuous Integration | Mockito | Mock object testing framework |
| Core | Continuous Integration | Apache Maven | Dependency management build tool |
| Familiar | Continuous Integration | Gradle | Dependency management build tool |
| Core | Continuous Integration | Jenkins | Automated building, testing and deploy |
| Core | Continuous Integration | SonarQube | Code quality control |
| Familiar | Continuous Integration | Nexus | Repository Manager |
| Familiar | Continuous Integration | Liquibase | Database schema change management |
| Core | Middleware | WebSphere | Enterprise Application Server |
| Core | Middleware | WebLogic | Enterprise Application Server |
| Core | Middleware | Apache Tomcat | Servlet container |
| Familiar | Middleware | Apache HTTP Server | Web server |
| Familiar | Middleware | GlassFish | Java EE Reference implementation |
| Familiar | Middleware | Open Liberty | WebSphere lite |
| Core | Middleware | IBM MQ | Message Queues |
| Proficient | Middleware | Docker | PaaS containers |
| Proficient | Middleware | Nginx | Web server, proxy and load balancing |
| Proficient | Middleware | Node.min.js | Server side JavaScript |
| Core | Relational | SQL | Structured Query Language |
| Core | Relational | DDL | Tables, views and stored procedures |
| Core | Relational | Oracle DB | Oracle Enterprise RDBMS |
| Familiar | Relational | Oracle DB XE | Developer version |
| Core | Relational | MS SQL Server | Microsoft RDBMS |
| Core | Relational | MySQL | Open-source RDBMS |
| Familiar | Relational | PostgreSQL | Open-source RDBMS |
| Core | Client Side | HTML | HTML5 and SVG |
| Core | Client Side | CSS | Cascading Style Sheets |
| Core | Client Side | JavaScript | ECMAScript |
| Familiar | Client Side | Bootstrap | CSS framework |
| Familiar | Client Side | jQuery | JavaScript library |
| Proficient | Client Side | TypeScript | Strictly typed JavaScript |
| Proficient | Legacy | J2EE | Application framework |
| Proficient | Legacy | EJB 2.x | Session beans defined using XML |
| Familiar | Legacy | JSP | Java Server Pages, HTML templating |
| Familiar | Legacy | JSTL | JSP Standard Tag Library |
| Familiar | Legacy | JSF | Java Server Faces |
| Familiar | Legacy | Apache Struts | MVC framework |
| Proficient | Legacy | SOAP Web Services | XML web services |
| Familiar | Legacy | JAX-WS | XML/SOAP web services |
| Proficient | Legacy | Mainframe | Legacy systems |
| Proficient | Legacy | PeopleSoft | Financials management package |
| Familiar | Legacy | Apache Ant | Build tool |
| Proficient | Design | SOA | Service Orientated Architecture |
| Proficient | Design | APIs | System interfaces |
| Proficient | Design | REST | Representational state transfer |
| Proficient | Design | Queues | Message Queues |
| Proficient | Design | Integration Patterns | Enterprise Integration Patterns |
| Proficient | Design | Data models | Complex Data Models |
| Proficient | Methodology | Agile | Scrum & Kanban |
| Proficient | Methodology | Waterfall | Enterprise projects |
| Proficient | Soft Skills | Problem Solving | In general & under pressure |
| Familiar | Soft Skills | Collaboration | Within teams and external |
| Familiar | Soft Skills | Business Engagement | And managing expectations |
| Familiar | Soft Skills | Customer Service | Customer facing |
| Familiar | Soft Skills | Communication | Both written and verbal |
| Familiar | Soft Skills | Project Management | Determine and allocate tasks |
| Familiar | Soft Skills | Time Management | Workload and deadlines |
| Familiar | Soft Skills | Self-starter | Able to take the initiative |
| Familiar | Soft Skills | Mentoring | For all developers |
| Proficient | Operational | Productivity | Developer experience |
| Proficient | Operational | Standards | When developing |
| Proficient | Operational | Performance | In development, test and production |
| Proficient | Operational | Security | Testing and audits |
| Proficient | Environments | Linux | Debian based distros |
| Proficient | Environments | Windows | Including WSL |
| Familiar | Office | Microsoft Word | With document macros |
| Familiar | Office | Microsoft Excel | For uploading/downloading data |
| Familiar | Office | Microsoft PowerPoint | Presentations |
| Familiar | Tools | Eclipse IDE | Using numerous plugins |
| Familiar | Tools | JetBrains | IntelliJ, WebStorm and PyCharm |
| Familiar | Tools | Visual Studio Code | Using numerous plugins |
| Familiar | Tools | PL/SQL Developer | For Oracle DB |
| Familiar | Tools | SoapUI | Testing web services |
| Familiar | Tools | Apache JMeter | Performance testing |
| Familiar | Tools | Postman | Testing REST APIs |
