Senior Developer (C#&Java) - Johannesburg (in office role)- …

Leading international technology consultancy is seeking a Senior Backend Engineer to play a key role in modernizing large-scale enterprise financial platforms. This is an exciting opportunity to work on high-impact digital transformation projects, driving the migration of legacy .NET systems into scalable, future-ready Java-based architectures. The role offers close collaboration with global engineering teams and UK-based clients within a fast-paced, innovation-driven environment, with full-time onsite engagement.

Key Responsibilities

Lead backend development initiatives using C#/.NET and Java/J2EE

Drive the migration of legacy .NET systems to modern Java-based architectures

Design and develop secure, scalable enterprise financial applications

Collaborate with cross-functional teams and engage directly with client stakeholders

Contribute to CI/CD pipelines, DevOps practices, and cloud deployments across AWS and Azure

Mentor and support junior developers while promoting engineering best practices

Requirements

5+ years of backend development experience

Strong proficiency in C#/.NET and Java/J2EE

Solid experience with SQL and large-scale datasets

Hands‑on experience with CI/CD pipelines and cloud platforms such as AWS or Azure

Degree in Computer Science or a related field

Previous consulting or client‑facing experience is advantageous

Additional Information Reference Number: PM60707. This is a Permanent in office position offering a cost to company of up to R1.3 mil per annum, negotiable on experience and ability. Contact Phindile at or call her at 011 463 3633 to discuss this and other opportunities.

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