Senior Java & Full-Stack Engineer

ATS Client; Johannesburg; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

Khonology in Johannesburg is seeking a Senior Java Developer to own backend services and contribute across the full stack, including front-end work with modern frameworks.

You will design APIs, work with cloud platforms, mentoring teams, implement CI/CD, and stay ahead of tech trends to deliver scalable, robust systems.

Applicants should bring 8+ years of experience, proficiency in Java, RESTful APIs, HTML/CSS/JS, and databases such as PostgreSQL or MySQL.

Qualifications

• 8+ years of experience in software development.
• Proven experience as a Full Stack Developer or similar role.
• Proficiency in front-end languages (HTML, CSS, JavaScript) and frameworks.
• Strong back-end development skills with experience in RESTful APIs.

Responsibilities

• Build robust back-end services and APIs using Java, or similar technologies.
• Develop and maintain responsive web applications using modern front-end frameworks (e.g. React).
• Design and manage relational and NoSQL databases (e.g., PostgreSQL, MySQL).
• Collaborate with cross-functional teams to define, design, and ship new features.
• Write clean, maintainable, and testable code.
• Implement CI/CD pipelines and deploy applications to cloud platforms (e.g., AWS, Azure).
• Troubleshoot, debug, and upgrade existing systems.
• Stay up to date with emerging technologies and industry trends.

Skills

Java

REST APIs

Full stack dev

Frontend React

CI/CD

Cloud (AWS/Azure)

PostgreSQL

MySQL

NoSQL

Job description

Khonology in Johannesburg is seeking a Senior Java Developer to own backend services and contribute across the full stack, including front-end work with modern frameworks.

You will design APIs, work with cloud platforms, mentoring teams, implement CI/CD, and stay ahead of tech trends to deliver scalable, robust systems.

Applicants should bring 8+ years of experience, proficiency in Java, RESTful APIs, HTML/CSS/JS, and databases such as PostgreSQL or MySQL.