We’re a leading technology consulting company looking for an experienced Senior .NET Developer with strong AWS expertise to join our Cape Town–based team. This is a hybrid role offering the opportunity to work on complex, enterprise-grade solutions within a collaborative and high-performing environment. As a Senior Developer, you’ll play a key role in technical solution design, development, and cloud implementation, while mentoring junior developers and influencing best practices across the team.

What You’ll Be Doing

• Development & Technical Delivery
  • Design, develop, test, and debug high-quality software solutions aligned with business requirements and technical standards
  • Contribute to solution architecture and establish technical frameworks for new applications and integrations
  • Develop enhancements in line with application architecture and coding standards
  • Produce technical documentation where required
  • Propose and evaluate alternative technical solutions
  • Design and implement cloud-based solutions on AWS, including:
    • Serverless architectures
    • Microservices
    • Containerisation
  • Implement security best practices across .NET applications and AWS environments (IAM, security groups, encryption)
  • Collaborate with stakeholders throughout the SDLC
• Mentorship & Technical Leadership
  • Mentor and guide junior developers to support successful, on-time delivery
  • Ensure adherence to QA processes and high coding standards
  • Participate in technical design forums and architecture discussions
  • Contribute to the evolution of development standards and best practices
• Environment Stability & Support
  • Work with implementation and configuration teams to create deployment artefacts and instructions
  • Collaborate with cross-functional teams to ensure application and database stability
  • Assist with system monitoring, optimisation, and post-release support
  • Participate in standby/support rotations as agreed (may include after-hours support)
• Collaboration & Innovation
  • Provide input into application and enterprise architecture
  • Support analysts and testers during delivery cycles
  • Contribute to SQL database design, optimisation, and data modelling
  • Build Proof of Concept (POC) solutions
  • Act as a technical liaison across teams
  • Contribute to future web application strategy and continuous improvement initiatives

Your Expertise:

• 10+ years’ experience in object-oriented software development
• Strong knowledge of OOP, SOLID principles, and design patterns
• Advanced experience with:
  • .NET and relational databases (NoSQL exposure advantageous)
  • AWS (EC2, S3, Lambda, RDS, ECS, ElastiCache, etc.)
  • Cloud integration and application deployment on AWS
  • DevOps / CI/CD (AWS or Azure)
• Front-end frameworks such as Angular or React (advantageous)
• Experience in investment management or financial services environments (advantageous)
• Solid understanding of cloud computing concepts and architectures

Qualifications:

• Relevant IT qualification (Diploma or Degree)
• BSc or National Diploma in Computer Science (recommended)
• AWS Certification (advantageous)