Senior DOTNET Developer

Zensar · South Africa

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Experience:

8+ years of backend software development experience
3+ years in a senior/equivalent role.
Experience building and maintaining microservices at enterprise scale.
Demonstrated impact on architectural decisions, mentorship, and system optimization.

Technical Expertise:

Platform & Languages:

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.

Data & Search:

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)

Architecture & System Design:

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.

At Zensar, we’re “experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus.

Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself.

We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status. You’ll take ownership of work that gives us our competitive edge, including: 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.

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