Remote Senior .NET Tech Lead – AWS Cloud Modernization

Cognizant; Boston (MA); Remote; USD 100,000 - 155,000; Full time

Benefits offered by this job

Medical insurance

401(k) plan

Job summary

Cognizant is seeking a Senior .NET Technical Lead to modernize legacy applications into cloud-native AWS services. You will lead design, development, and delivery of .NET APIs and microservices, guiding offshore teams and ensuring quality through robust testing.

You will collaborate with AWS leads, architects, QA, product owners, and offshore teams to drive delivery, security, and compliant practices while leveraging AI-assisted tools to boost productivity without compromising code integrity.

Qualifications

• 12+ years of software development experience, including 5+ years with modern .NET and ASP.NET Core Web APIs.
• Proven experience designing, building, and deploying microservices or independently deployable distributed applications.
• Strong expertise in C#, .NET, SQL Server, and advanced T-SQL development.
• Hands-on experience migrating business logic from stored procedures into application services.
• Solid understanding of RESTful API design, OpenAPI specifications, OAuth 2.0, and JWT-based security models.
• Experience with EF Core, Dapper, asynchronous programming, and application performance optimization.

Responsibilities

• Lead the design, development, and delivery of modern .NET services and APIs, supporting migration to cloud-native architecture on AWS.
• Drive engineering excellence through sprint planning, code reviews, coding standards, and best practices for quality and maintainability.
• Partner with business and product stakeholders to refine requirements, define acceptance criteria, and ensure delivery of customer features.
• Mentor and guide offshore development teams, remove blockers, and provide regular progress updates to project leadership.
• Modernize legacy data architectures by extracting business logic from SQL Server stored procedures into scalable C# services with automated testing.
• Support CI/CD pipelines and production releases, ensuring secure, reliable deployments and adherence to compliance and delivery standards.
• Utilize AI-assisted development tools to improve productivity while maintaining accountability for code quality, security, and technical decisions.

Skills

Team leadership

REST API design

Asynchronous programming

Microservices

OpenAPI specs

CI/CD practices

AI-assisted development

Cloud-native AWS

Tools

C#

ASP.NET Core

SQL Server

EF Core

Dapper

SQS

SNS

EventBridge

OAuth 2.0

JWT

Job description

Cognizant is seeking a Senior .NET Technical Lead to modernize legacy applications into cloud-native AWS services. You will lead design, development, and delivery of .NET APIs and microservices, guiding offshore teams and ensuring quality through robust testing.

You will collaborate with AWS leads, architects, QA, product owners, and offshore teams to drive delivery, security, and compliant practices while leveraging AI-assisted tools to boost productivity without compromising code integrity.