Senior Java Full-Stack Engineer: Cloud, APIs & Leadership

Concord EFS; Johannesburg; On-site; ZAR 900,000 - 1,200,000; Full time

Job summary

Khonology in Johannesburg is seeking a Senior Java Developer to own backend services, APIs, and front-end integrations across the stack. You will guide design decisions, mentor engineers, and help ensure scalable, secure software delivery.

You will work with cloud platforms (AWS/Azure), implement CI/CD, and collaborate with cross-functional teams to ship robust features and stay current with new technologies. This role requires 8+ years of experience and strong RESTful API skills.

Qualifications

• 8+ years of experience
• Proven full stack developer experience
• Proficiency in HTML, CSS, JavaScript
• Strong back-end development with RESTful APIs

Responsibilities

• Build robust back-end services and APIs.
• 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

Front-end languages

RESTful APIs

Full stack development

Job description

Khonology in Johannesburg is seeking a Senior Java Developer to own backend services, APIs, and front-end integrations across the stack. You will guide design decisions, mentor engineers, and help ensure scalable, secure software delivery.

You will work with cloud platforms (AWS/Azure), implement CI/CD, and collaborate with cross-functional teams to ship robust features and stay current with new technologies. This role requires 8+ years of experience and strong RESTful API skills.