
Full Stack Developer (Expert) 1799
OpenSource Intelligent Solutions
- Gauteng
- Permanent
- Full-time
Contract Period: 01 October 2025 – 31 December 2028 (renewable based on Performance / Project Availability)
Nationality: South African citizens/residents preferred. Applicants with valid work permits (18+ months) will also be considered.About the Role
We are seeking an Expert Full Stack Developer to join our TSARA team. This is a 3-year renewable contract (renewal subject to performance and project availability). The role offers the chance to work on modern technologies, mentor junior developers, and contribute to a truly global IT landscape.Essential Skills & Experience
- Minimum 9+ years full stack development experience, with proven Java & Angular background
- Relevant IT/Business Degree (or equivalent experience)
- Expert-level knowledge in Java and Angular
- Strong skills in HTML5, CSS3, JavaScript (ES6+)
- RESTful services and APIs
- GitHub, CI/CD pipelines (GitHub & GitHub Actions)
- Front-end build tools: Grunt, Gulp.js, Angular CLI
- Tech Stack: Java/Quarkus, ReactJS/Angular, NodeJS, SQL (Postgres)
- Cloud: AWS (network, security groups, ECS, Fargate, RDS, load balancers, Lambda, API Gateway, X-Ray)
- MicroServices architecture
- Cloud architectures, Docker, Kubernetes
- ELK stack, Kafka, ESB Integration (IIB, Tibco, Oracle Fusion, MQS)
- Test-Driven Development & Automated Testing (Jasmine, Karma, Selenium, Cucumber, Wire Mock)
- Machine Learning exposure
- Typescript, Java Micro Profile (JAX-RS), REST/OData/GraphQL
- Jira, Confluence, ITSM.Next
- German language skills
- Mentor and guide junior developers
- Develop responsive, user-facing features with Java & Angular
- Collaborate with international teams and stakeholders (some travel required)
- Provide 24/7 operations support as per schedule
- Analyze business requirements, prepare functional/technical documentation, and execute system changes
- Proactively propose solutions to improve business processes
- Conduct unit, regression, integration, and security tests; record results and manage change requests
- Prepare user manuals and conduct training sessions
- Contribute to Agile Working Model practices
- Cutting-edge global IT system landscape and processes
- Flexible working hours (1960 hours per 12-month period)
- High work-life balance with hybrid/remote flexibility
- Affordable group vehicle promotions (buying or leasing, T&Cs apply)
- Modern, state-of-the-art offices
- Motivating, energetic, and fast-paced environment
- Global team collaboration
- Agile Working Model methodology