Senior .NET Developer
Subhujo Technologies · City of Johannesburg Metropolitan Municipality, Gauteng · Open
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Looking for a Senior .NET Developer
Desired Experience & Qualification
- Expert‑level proficiency in .NET 8+ and C# 12+ (async/await, LINQ, performance tuning, reflection).
- Strong experience with Dapper / EF Core , including ORM trade‑offs and performance tuning.
- Advanced SQL Server skills: query tuning, indexing, execution plans, statistics.
- Deep understanding of ACID, isolation levels, deadlocks, sharding, and partitioning. (Beneficial)
- Redis expertise in distributed caching and invalidation strategies. (Beneficial)
- Elasticsearch experience (indexing, search and aggregation performance optimizations). (Beneficial)
- Microservices design: boundaries, communication patterns, service reliability.
- Event‑driven architecture: RabbitMQ, Kafka, or Azure Service Bus.
- API design (REST / gRPC), backward compatibility, and versioning strategies.
- Strong ability to lead design discussions and influence architecture without formal authority..
DevOps, CI/CD & Observability
- Advanced Azure DevOps pipeline design and release management.
- Understanding of modern deployment strategies (blue‑green, canary, etc.).
- Experience with logging, tracing, and performance monitoring (OpenTelemetry). (Beneficial)
Software Quality & Craftsmanship
- Deep experience with testing automation across all testing layers.
- Strong understanding of SOLID principles, design patterns, and refactoring practices.
- Performance profiling, optimization, and debugging complex scenarios.
Production Ownership
- Experience leading incident response, post‑mortems, and operational improvement efforts.
- Ability to maintain composure and lead through high‑severity production challenges.
Soft Skills & Professional Strengths
- Excellent technical communication and ability to explain complex concepts to diverse audiences.
- Strong ownership mindset — you take responsibility for outcomes, not just tasks.
- Adaptability in a fast‑moving environment with changing priorities.
- Collaborative and team‑oriented, with strong cross‑functional communication.
- High attention to detail, especially in regulated environments.
- Proactive, solution‑driven, and resilient under pressure.
Core Development & Architecture
· Build and enhance scalable systems within a distributed microservices architecture.
· Design and implement RESTful APIs with strong versioning and documentation standards.
· Develop event driven services using message queue technologies to support high volume, asynchronous workloads.
· Design and optimize databases, queries, and indexing for ultra high throughput environments.
· Implement advanced caching patterns (Redis, distributed caching) to reduce latency and boost performance.
Code Quality & Technical Leadership
• Drive code quality through rigorous reviews, adherence to SOLID principles, and best practice engineering standards.
• Mentor junior and mid-level developers and support their growth.
• Lead adoption of testing practices (unit, integration, contract, load testing).
• Identify opportunities for system refactoring, modernization, and performance improvement.
Package & Remuneration
Negotiable