Senior API Engineer Job at IQZ Systems

Job Description

We are looking for a hands-on Azure Application Developer / Senior API Engineer with strong experience in ASP.NET Web API and modern cloud practices on Microsoft Azure. You will design, build, and maintain scalable RESTful APIs and cloud-native services, contribute to application modernization, and collaborate closely with architects and engineering leads to implement well-structured solutions. This role is ideal for someone who enjoys coding, can make sound design decisions, and is ready to grow into broader solution/architecture ownership over time.

Job Responsibility

Design, develop, and maintain RESTful APIs using ASP.NET Web API / .NET (Core/6+)
Build reliable backend services that support web and mobile applications
Implement API versioning, error handling, logging, and API documentation (Swagger/OpenAPI)
Develop and deploy services on Azure using components such as: Azure App Service, Azure Functions, API Management, Service Bus / Event Grid (event-driven patterns), Azure SQL / Cosmos DB (as applicable), Key Vault for secrets management
Contribute to modernization initiatives (e.g., migrating from on-prem/legacy to Azure)
Collaborate with architects/tech leads to implement scalable, maintainable API/service designs
Apply best practices for microservices, integration patterns, and cloud design principles (security, reliability, performance)
Participate in architecture/design reviews and propose improvements for service boundaries, resilience, and maintainability
Implement authentication/authorization using OAuth2, JWT, and Azure identity patterns (Azure AD/Entra ID concepts)
Ensure secure coding practices, encryption/data protection considerations, and compliance requirements as needed
Identify bottlenecks and improve performance (profiling, caching, query tuning, efficient serialization)
Work with CI/CD pipelines using Azure DevOps or GitHub Actions
Support Infrastructure as Code (IaC) practices using Bicep / Terraform / ARM (at least working familiarity
hands-on is a plus)
Write unit/integration tests and support automated testing within the pipeline
Participate in code reviews, support QA, and troubleshoot production issues using monitoring/logging tools
Work effectively with cross-functional teams: product owners, front-end engineers, QA, and cloud/infra teams

Requirements

5–7 years of experience in software development, with strong backend/API focus
2+ years hands-on experience implementing solutions on Microsoft Azure
Strong proficiency in C#, .NET Core / .NET, and ASP.NET Web API
Experience designing and developing RESTful APIs (routing, versioning, serialization, Swagger/OpenAPI)
Solid understanding of HTTP, client-server architecture, and web services concepts
Strong database skills with Microsoft SQL Server / Azure SQL (schema design, query optimization)
API security experience: JWT, OAuth2, token-based authentication, role-based access concepts
Experience with Git and Agile development
Strong debugging, problem-solving, and communication skills

Nice to have

Experience with microservices and event-driven architecture using Service Bus/Event Grid
Familiarity with AKS (Kubernetes) and containers (Docker) (not mandatory)
Experience with API Management, Logic Apps, or integration workflows
Familiarity with observability tools (Application Insights, logging/monitoring dashboards)
Exposure to front-end frameworks (Angular/React/Vue) is a plus
Azure certifications (AZ-204, AZ-305, DevOps) are a plus

What we offer

Vigorous Growth: We grew 5x and doubled our workforce last year
EOE: We are committed to creating a diverse environment and proud to be an equal opportunity employer
Open Door Policy: Strong communication and transparency support a stress-free workplace
Always Learning: We’re hungry to better ourselves intellectually
Work on modern cloud and modernization projects
Collaborate with teams across US, India, Sri Lanka, Luxembourg
Grow into broader solution ownership and architecture responsibilities

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Senior API Engineer

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