.Net Developer

Senior .NET Developer (Enterprise Integration Specialist)

Location : Johannesburg  | Enterprise Technology Environment

Contract: 5 Months 

This is an opportunity to join a global-scale technology organisation operating at the forefront of enterprise systems integration, cloud services, and digital transformation. The environment is built around complex, high-availability platforms supporting large, regulated enterprises across multiple industries.

You will be part of a highly skilled engineering team responsible for designing, integrating, and evolving mission-critical systems that sit at the heart of large enterprise operations. The work is varied, technically deep, and spans across modern cloud architectures, legacy modernisation, and API-led integration strategies.

This is not a single-application role — it is a true enterprise integration environment where you will work across multiple platforms, technologies, and business domains to deliver scalable, secure, and resilient solutions.

What you will be doing

• Designing and delivering end-to-end enterprise integration solutions across complex system landscapes


• Building and maintaining secure APIs and service layers for internal and external system integration


• Working across legacy modernisation and new platform development initiatives


• Contributing to architecture and technical design discussions with senior engineers and architects


• Translating business requirements into robust technical solutions


• Supporting continuous improvement of existing systems in terms of performance, scalability, and stability


• Writing technical specifications and ensuring strong documentation standards


• Running performance testing, debugging, and root cause analysis across distributed systems


• Managing code configuration and integration pipelines in structured DevOps environments


• Supporting junior developers and contributing to engineering best practice across the team


• Ensuring adherence to secure coding standards and regulatory requirements

What you bring

• Strong experience in enterprise-level .NET development and system integration


• Proven background working in complex, multi-system environments


• Strong understanding of API-driven architecture and integration patterns


• Experience working in Agile delivery environments with cross-functional teams


• Ability to operate in environments where stability, security, and scalability are critical

Technical requirements

• C# / .NET development (5+ years)


• ASP.NET (5+ years)


• ASP.NET Core (2–3+ years)


• JavaScript, jQuery, CSS, Bootstrap (5+ years)


• MS SQL Server (5+ years)


• Web API / REST services (5+ years)


• XML (5+ years)


• SSRS (5+ years)


• Azure DevOps (2–3+ years)


• Agile methodologies (5+ years)

Why this role stands out

You will be joining a global engineering environment where integration is a core capability, not an add-on. The work is focused on large-scale enterprise platforms where reliability, performance, and security are critical to business operations.

You'll be exposed to complex integration ecosystems, modernisation programmes, and enterprise transformation initiatives — with strong technical peers and structured engineering practices.