Senior .NET Engineer / Technical Lead

🟠 Details: we’re looking for a Senior .NET Engineer / Technical Lead to lead the technical assessment, stabilization, and ongoing development of a large-scale financial platform running in production on Microsoft Azure. You'll work with a business-critical platform consisting of 30+ event-driven microservices, complex accounting and payment workflows, multiple databases, Kubernetes infrastructure, external integrations, and over 100 CI/CD pipelines. This is a hands-on technical leadership role focused on solving complex engineering challenges, improving system reliability, reducing technical debt, and guiding the team in delivering high-quality software. 🟠 Qualifications: 8+ years of commercial software development experience, including 5+ years with C# and .NET / ASP.NET Core. Previous experience as a Technical Lead, Staff Engineer, or similar technical leadership role. Strong experience designing, building, and maintaining large-scale distributed microservice systems in production. Strong experience in at least one transactional business domain, such as accounting, fintech, payments, banking, ERP, billing, invoicing, or e-commerce with payment and reconciliation workflows. Solid understanding of financial transactions, idempotency, reconciliation, audit trails, and distributed data consistency. Production experience with Microsoft Azure, Kubernetes (AKS), Docker, SQL Server, and messaging systems such as Azure Service Bus or RabbitMQ. Experience with REST, gRPC, webhooks, service-to-service integrations, CI/CD, Infrastructure as Code (IaC), and GitOps practices. Strong troubleshooting skills, including complex cross-service and data-consistency issues. Strong communication skills and experience mentoring engineers or leading technical initiatives. English language proficiency at B2 level (upper-intermediate) and above. 🟠 Would be a plus: Experience with .NET 8, Angular, PostgreSQL, Terraform, Helm, ArgoCD, Azure Monitor, or Application Insights. Familiarity with CQRS, DDD, Clean Architecture, and Saga patterns. Experience taking over production platforms with limited knowledge transfer, improving release processes, and simplifying fragmented microservice architectures. 🟠 Responsibilities: Lead the technical assessment, stabilization, and ongoing improvement of the existing production platform. Analyze the existing architecture, service dependencies, data flows, databases, message queues, and external integrations to identify technical risks and improvement opportunities. Review the current architecture, identify areas for simplification, reduce technical debt, and contribute to the platform's long-term evolution. Investigate and resolve complex production issues, including cross-service communication and data consistency challenges. Improve system reliability, maintainability, observability, and deployment processes, including CI/CD, database migrations, and rollback strategies. Establish and promote engineering best practices for development, code reviews, testing, and release management. Provide technical leadership, mentor engineers, and actively contribute to the implementation of complex technical solutions. Collaborate closely with the Delivery Manager, DevOps/SRE, QA, and the client's technical lead to deliver a reliable and scalable production platform. 🟠 Interview steps: Screening with the recruiter (about 45 minutes). Interview with the project manager (about 45 minutes). Interview with the client (about 1 hour).