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OpenSource Intelligent Solutions
Full Stack Developer (Senior) 2563OpenSource Intelligent Solutions • Menlyn, Gauteng, ZA
Full Stack Developer (Senior) 2563

Full Stack Developer (Senior) 2563

OpenSource Intelligent Solutions • Menlyn, Gauteng, ZA
8 days ago
Job description
Senior Backend Engineer (Java | Cloud | Microservices | DevOps)

We are seeking a highly skilled Senior Backend Engineer to design, build, and support scalable, secure, and high-performance backend systems in a cloud-first, DevOps-driven environment.
This role is ideal for someone who thrives on end-to-end ownership, from architecture and development through to deployment, monitoring, and support. You will play a key role in delivering mission-critical systems, collaborating with global teams, and driving continuous improvement through modern engineering practices.


Essential Skills
  • Extensive experience with Java (8/11+) and backend development best practices
  • Proven track record building and supporting mission-critical systems
  • Strong experience developing and maintaining RESTful web services
  • Hands-on experience with cloud platforms (Azure or equivalent)
  • Experience with microservices architecture and containerization
  • Knowledge of Infrastructure as Code (Terraform or similar)
  • Solid experience with Spring or Quarkus frameworks and Jakarta/JEE standards
  • Strong experience with relational databases (PostgreSQL, Oracle)
  • Experience with CI/CD pipelines and DevOps practices

Role & Responsibilities
  • Design and develop robust backend architectures aligned to business and technical requirements
  • Build and maintain scalable, secure, and high-performance backend systems
  • Develop and integrate APIs, microservices, and data-driven solutions
  • Design and optimize database schemas, queries, and performance
  • Implement and maintain CI/CD pipelines and automated testing frameworks
  • Monitor, troubleshoot, and resolve production issues, performance bottlenecks, and security vulnerabilities
  • Collaborate with stakeholders, developers, and business teams to refine and deliver solutions
  • Contribute to system design decisions, evaluating and proposing alternatives
  • Ensure high code quality, documentation, and compliance with development standards
  • Support system deployments, maintenance, and operational readiness
  • Participate in knowledge sharing, mentoring, and continuous improvement initiatives
  • Work within a full DevOps environment with global teams and partners
  • Provide support on a rotational standby basis to ensure system availability
Advantageous Skills
  • Experience with Kafka or distributed messaging systems
  • Familiarity with monitoring tools (Grafana, Prometheus, Dynatrace)
  • Experience with Git, GitHub, and CI/CD tooling (GitHub Actions)
  • Agile experience and familiarity with Jira/Confluence
  • Exposure to Generative AI tools (e.g., Copilot, ChatGPT) in development workflows
  • Strong leadership, mentoring, and stakeholder engagement experience
  • German language skills or experience working in international environments
  • Automotive or large enterprise systems experience
  • Strong troubleshooting, analytical thinking, and problem-solving skills
Qualifications
  • Relevant 3-year IT or Computer Science degree
  • Minimum 6+ years’ experience building and maintaining mission-critical Java systems
  • At least 3+ years’ experience with RESTful services, cloud environments, and microservices architectures
  • Proven experience delivering enterprise-scale backend solutions
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Full Stack Developer (Senior) 2563 • Menlyn, Gauteng, ZA

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