Senior C# Developer
Senior C# full-stack developer at Sanlam building enterprise applications, APIs, and cloud-native integrations across the SLS ecosystem on Azure. Day to day involves implementing integration patterns (Service Bus, Event Grid, APIM), enforcing CI/CD quality gates, and mentoring engineers.
- Compensation
- Not disclosed
- Location
- South Africa
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Contract
- Experience
- 10+ years
- Category
- Software engineering
- Posted
Skills
Must have
- 6-10+ years of software engineering experience focused on C#, .NET, cloud-native development, APIs, and enterprise integrations
- Strong experience in C# and .NET / .NET Core development
- Experience with ASP.NET Core, MVC, and Web API development
- Solid understanding of object-oriented design principles and engineering best practices
- Strong understanding of design patterns and clean code principles
- Experience with SQL Server and relational databases
- Familiarity with RESTful APIs and API-first development practices
- Experience with source control systems such as Git and Azure DevOps
- Experience with Microsoft Azure (not negotiable)
- Knowledge of container technologies such as Docker and Kubernetes
- Exposure to microservices architecture and distributed systems
- Knowledge of CI/CD pipelines, DevOps practices, and Infrastructure as Code
- Understanding of monitoring, observability, logging, and operational support practices
- Experience with event-driven architectures, messaging platforms, and enterprise integrations
- Proven experience delivering enterprise-scale applications and leading complex technical initiatives
- Strong troubleshooting, analytical, and problem-solving abilities
- Excellent communication, stakeholder engagement, and collaboration skills
- Experience working within Agile delivery teams
- Degree in Computer Science, Information Systems, Software Engineering, or equivalent qualification
Nice to have
- Experience establishing and promoting engineering standards, API governance, CI/CD practices, and quality engineering principles
- Demonstrated success improving resilience, performance, observability, scalability, and security in distributed systems
- Experience within insurance, financial services, or other regulated industries
- Experience with Microsoft Dynamics 365, Dataverse, and Power Platform
- Relevant Microsoft, Azure, AWS, or cloud-related certifications
- Microsoft AZ-204 (Azure Developer Associate) certification
- Experience with application lifecycle management (ALM), release management, and environment governance
Full description
What will you do?
The Senior C# Full Stack Developer builds and delivers complex enterprise applications, integrations, APIs, andcloud-native solutions across the SLS ecosystem, implementing secure, reliable, and maintainable componentsacross web applications, services, APIs, and platform integrations.
The role ensures that all solutions adhere to engineering standards, including API design and versioning practices,integration patterns, architectural guardrails, and CI/CD pipeline quality gates to ensure scalable, reliable, andmaintainable releases across the broader product ecosystem.
Working under the technical direction of the Technical Lead, the role provides technical leadership on the selectionand adoption of cloud services, integration technologies, software engineering practices, and platform capabilities.The role translates solution designs into high-quality implementations, strengthens engineering discipline throughcode reviews and collaboration, and improves operational resilience through testing, observability, and production-grade engineering practices.
The Senior Developer mentors engineers across squads, uplifts engineering maturity, and drives design decisionsthat ensure long-term platform sustainability, architectural consistency, and alignment with strategic businessoutcomes.
Experience with Microsoft Dynamics 365, Dataverse, and Power Platform is advantageous but not required.
What will make you successful in this role?Architecture & Governance
- Implement integration architecture across the product domain, covering synchronous and asynchronouscommunication patterns, event-driven solutions using Service Bus and Event Grid, and API-first serviceboundaries.
- Own and govern Azure API Management (APIM) implementations, including workspaces, gateways, routing,policies, and developer experience.
- Establish and maintain REST API standards, including resource modeling, versioning strategies, request andresponse validation, pagination, and error handling.
- Define and standardize integration and orchestration patterns using technologies such as Azure Functions,Durable Functions, Logic Apps, and custom C# services.
- Engineer resilience patterns across distributed systems, including retries, circuit breakers, fault isolation,idempotency, and timeout strategies.
- Embed security best practices such as least privilege access, secure authentication, authorization, secretsmanagement, and compliance-aligned logging.
##
Release & Quality Leadership
- Establish and continuously improve quality gates across environments, including unit testing, integrationtesting, contract testing, performance validation, and security testing.