Senior .NET Developer

🚀

About the Role
We are looking for an experienced Senior .
NET Backend Engineer to design and build scalable, resilient, and high-performance backend systems. You will work with modern C# and .
NET, developing REST APIs, microservices, and distributed applications running in cloud-native environments. Beyond hands-on development, you will contribute to architecture decisions, performance optimization, reliability, and engineering best practices. This is an excellent opportunity for a senior backend engineer who enjoys solving complex technical challenges and discussing architectural trade-offs around scalability, concurrency, resiliency, security, and distributed systems. 🎯 Your Mission As a Senior .
NET Backend Engineer, you will:
• Design and develop scalable backend services and APIs.
• Build resilient distributed systems and microservices.
• Contribute to architectural and system design decisions.
• Improve application performance, scalability, and reliability.
• Develop cloud-native solutions using Azure or AWS.
• Promote clean, maintainable, and testable engineering practices.
• Collaborate with international and cross-functional teams. 💼

Key Responsibilities
Backend Development
• Design, develop, and maintain backend services using C# and .
NET 6+.
• Build secure, scalable, and high-performance REST APIs.
• Develop reusable and maintainable backend components.
• Implement complex business logic while maintaining clear separation of concerns.
• Participate throughout the software development lifecycle, from technical design to production. Distributed Systems & Microservices
• Design and implement distributed systems and microservices architectures.
• Build services capable of handling asynchronous and concurrent workloads.
• Apply appropriate patterns for:
• async/await
• Concurrency
• Thread safety
• Idempotency
• Retry mechanisms
• Failure recovery
• Design services with reliability and fault tolerance in mind.
• Contribute to architectural decisions involving scalability, availability, and performance. APIs & Security
• Design and maintain robust RESTful APIs.
• Implement authentication and authorization using technologies and standards such as:
• JWT
• OAuth
• Apply API security and backend development best practices.
• Ensure reliable communication between distributed services.
• Contribute to API versioning and integration strategies. Data & Persistence
• Develop data access layers using Entity Framework Core.
• Design and optimize efficient database interactions.
• Write and troubleshoot SQL queries.
• Identify database performance bottlenecks.
• Optimize queries and application data access patterns.
• Ensure appropriate transaction management and data consistency. Cloud Engineering
• Develop and operate solutions in Azure and/or AWS environments.
• Design cloud-native backend services.
• Contribute to application scalability and resilience in cloud environments.
• Collaborate with infrastructure and DevOps teams on deployment architecture.
• Participate in technical discussions around cloud scalability and availability. Containerization & Kubernetes
• Containerize backend services using Docker.
• Deploy and support applications running on Kubernetes.
• Ensure services are appropriately configured for cloud-native environments.
• Contribute to application health, scalability, and production readiness. CI/CD & Engineering Excellence
• Contribute to CI/CD pipelines and automated software delivery.
• Participate actively in code reviews.
• Promote coding standards and backend engineering best practices.
• Improve development, testing, and deployment processes.
• Identify technical debt and contribute to sustainable remediation strategies. Performance & Reliability
• Identify application and infrastructure bottlenecks.
• Optimize backend performance and resource utilization.
• Build appropriate retry, timeout, and resiliency mechanisms.
• Improve application stability under high-volume or transactional workloads.
• Contribute to monitoring and observability practices. Technical Collaboration
• Participate in architecture reviews and technical discussions.
• Evaluate technical alternatives and communicate architectural trade-offs.
• Collaborate with engineers, architects, DevOps teams, and product stakeholders.
• Share technical knowledge and support engineering improvements across the team. ✅ What We’re Looking For Mandatory Requirements
• 5+ years of professional experience with C# and .
NET.
• Strong knowledge of .
NET Core / .
NET 6+.
• Strong experience developing:
• REST APIs
• Backend Services
• Microservices
• Solid understanding of:
• async/await
• Concurrency
• Thread Safety
• Idempotency
• Resiliency Patterns
• Retry Strategies
• Experience implementing authentication and authorization with JWT/OAuth.
• Strong experience with Entity Framework Core.
• Solid SQL knowledge and query optimization experience.
• Experience with distributed systems and microservices architectures.
• Hands-on experience with Azure and/or AWS.
• Experience with:
• Docker
• Kubernetes
• CI/CD pipelines
• Strong understanding of modern software engineering practices.
• Professional proficiency in English. 🛠 Technical Stack Backend
• C#
• .
NET Core
• .
NET 6+
• ASP.
NET Core
• REST APIs
• Entity Framework Core Architecture
• Microservices
• Distributed Systems
• Cloud-Native Architecture
• Asynchronous Processing
• Scalability
• High Availability
• Resiliency Patterns Security
• JWT
• OAuth
• Authentication
• Authorization
• API Security Data
• SQL
• Entity Framework Core
• Relational Databases
• Query Optimization
• Transaction Management Cloud & Containers
• Microsoft Azure
• AWS
• Docker
• Kubernetes Engineering
• CI/CD
• Automated Testing
• Code Reviews
• Performance Optimization
• Software Design Patterns ⭐ Nice to Have Messaging & Asynchronous Architectures Experience with one or more of:
• Azure Service Bus
• Apache Kafka
• RabbitMQ Architecture Patterns
• Clean Architecture
• Domain-Driven Design (DDD)
• CQRS
• Event-Driven Architecture Resiliency
• Polly
• Circuit Breaker patterns
• Retry and timeout strategies Infrastructure
• Terraform
• Infrastructure as Code Caching
• Redis
• Distributed Caching Observability
• Grafana
• Application Insights
• OpenTelemetry
• Distributed Tracing
• Application Monitoring Scale
• Experience with high-volume applications.
• Experience with highly transactional systems.
• Performance optimization in distributed environments. 🤝 Soft Skills Backend Engineering Mindset
• Strong understanding of how backend systems behave beyond individual application components.
• Ability to consider security, performance, scalability, reliability, and maintainability when designing solutions. Architectural Thinking
• Comfortable discussing architecture and system design.
• Ability to evaluate and explain technical trade-offs.
• Pragmatic approach to selecting technologies and architectural patterns. Problem Solving
• Hands-on and analytical approach to complex technical problems.
• Strong troubleshooting capabilities.
• Focus on sustainable solutions rather than temporary fixes. Autonomy
• Comfortable taking ownership of technically complex topics.
• Ability to work independently and make sound engineering decisions.
• Proactive attitude toward technical improvement. Communication & Collaboration
• Strong English communication skills.
• Ability to participate effectively in technical discussions.
• Comfortable collaborating with international and multidisciplinary teams.