Tech Lead .NET Full Stack Position (3 Openings - Immediate Hiring)

Description

Job Summary: We are seeking a Tech Lead .NET professional with a strong focus on architecture and technical leadership for high-demand corporate solutions built on microservices, APIs, and complex integrations. Key Highlights: 1. Lead technical teams and serve as the architectural decision authority. 2. Design end-to-end solutions and define development standards. 3. Participate in high-impact corporate projects. At KEY Solutions, an Information Technology consulting firm, we are looking for a Tech Lead .NET professional focused on architecture and technical leadership to contribute to high-demand corporate solutions based on microservices, APIs, and complex integrations. Follow \-\> https://www.linkedin.com/company/key\-solutions\-srl Work Mode: \[On-site / Hybrid / Remote — to be agreed with the client] Start Date: Immediate **Responsibilities** → Lead technical teams and serve as the architectural decision authority → Design end\-to\-end solutions (backend, APIs, integrations, and frontend at the architectural level) → Define development standards, best practices, and code quality → Design and evolve backend services in .NET (ASP.NET Core) → Build and govern REST APIs (versioning, security, contracts, validation) → Optimize performance and resilience (async/await, caching, retries, circuit breaker with Polly) → Design integrations with external systems (REST, SOAP, events, webhooks), ensuring traceability and idempotency → Model data (SQL/NoSQL), asynchronous processes (queues/events), and scheduled jobs → Ensure quality through automated testing (unit, integration, contract testing) → Oversee deployments, observability (logs, metrics, traces), and troubleshooting → Participate in CI/CD strategy and cloud deployments (Azure) → Mentor the technical team (code reviews, technical sessions, coaching) → Coordinate with business units, QA, frontend, DevOps, and external vendors **Requirements** **Core** → Degree in Systems Engineering, Computer Science, or related field → 8+ years of software development experience (.NET backend) → 3+ years leading technical teams → Experience with distributed or high-demand systems → Intermediate English proficiency **Backend .NET** → .NET (6/7/8\+) → ASP.NET Core (Web API, MVC) → Asynchronous programming (async/await) and concurrency handling → REST API design (versioning, validation, security, documentation) → SOLID principles, Domain-Driven Design (DDD), and patterns (Clean Architecture, CQRS where applicable) → Security (OAuth2, JWT) → Microservices and decoupled architecture → REST / SOAP / Webhook integrations → Messaging and event-driven systems (Azure Service Bus or similar) → Resilience patterns (Retry, Circuit Breaker, Bulkhead \- Polly) → Design of scalable and fault-tolerant systems **Database / SQL** → Proficiency in SQL (modeling, indexing, query optimization) → Experience with SQL Server / Azure SQL → Entity Framework Core (transactions, tuning, migrations) **Cloud – Microsoft Azure (Preferred)** → App Services → Azure Storage → Azure SQL Database → Azure AD (SSO) → Experience with cloud deployments **DevOps / Quality** → Azure DevOps (CI/CD pipelines) → Git → Maven / equivalent build tools → SonarQube → Automated testing (xUnit, NUnit, MSTest) → Monitoring, observability, and troubleshooting **Frontend (Preferred)** → Angular (integration and architectural level) → API consumption, error handling, and authentication → Concepts of performance, modularity, and state management **Automation / Bots (Differentiator)** → Experience with Microsoft Bot Framework → Integration with Azure Language Studio → Design of conversational flows → Bot state and context management **AI-Assisted Engineering (Preferred)** → Use of AI tools for code development and testing → Ability to assess quality and risks of AI-generated code → Best practices in AI\-assisted development **Soft Skills** → Technical leadership and mentoring → Effective communication → Analytical ability (functional and technical) → Decision-making and architectural judgment → Collaborative work and results orientation **What We Offer** → Participation in high-impact corporate projects → Technical challenges in architecture, performance, and scalability → Continuous professional growth → Flexible work mode → Competitive market-aligned compensation **Application** Please send your updated CV indicating: → Expected salary → Availability talento@keysolutions.com.pe Subject: IDTechLeadDotNet \- 202605 \- FirstNameLastName Work Location: Hybrid in San Isidro, Lima