Protium is hiring Senior Backend C#/. NET Engineers to join our team in Cape Town.

We’re looking for senior backend engineers who can help us design, build, and ship production‑grade APIs, services, integrations, and backend systems using C#,. NET, SQL Server, and Microsoft/Azure technologies.

This is a Cape Town‑based hybrid role, with in‑person office days typically 2–3 times per week at our Claremont office.

You’ll work on high‑quality, API‑driven systems where clean architecture, maintainability, performance, security, scalability, operational reliability, and long‑term supportability matter.

As a senior engineer, you’ll be expected to take ownership of meaningful areas of delivery, shape technical approaches, make sensible trade‑offs, guide implementation, support other developers, and help maintain strong engineering standards across the team.

What you’ll work on: Designing, building, and maintaining production‑grade APIs and backend s...