Senior .NET Technical Lead (AWS)

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

Senior .NET Technical Lead (AWS)

About the role

As a Senior .NET Technical Lead, you will make an impact by leading the modernization of legacy business applications into scalable, cloud-native services on AWS. You will be a valued member of the engineering team, collaborating with AWS leads, architects, QA teams, product owners, and offshore developers to deliver high-quality solutions that support business growth and operational excellence.

In this role, you will:

• Lead the design, development, and delivery of modern .NET services and APIs, supporting the migration of legacy applications to a cloud-native architecture.
• 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 successful delivery of customer features.
• Mentor and guide offshore development teams, remove delivery 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 while maintaining functional parity through 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.

Work model (Remote)

We strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a remote position open to qualified applicants in United States. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured, we will always be clear about role expectations.

What you need to have to be considered

• 12+ years of software development experience, including 5+ years working 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.
• Hands-on AWS experience, including ECS/Fargate, RDS for SQL Server, and messaging/event-driven technologies such as SQS, SNS, or EventBridge.
• Experience implementing automated testing frameworks, including unit, integration, and API/contract testing.
• Demonstrated leadership experience managing and mentoring development teams, including offshore resources.

These will help you stand out

• Experience modernizing large-scale legacy platforms within enterprise environments.
• Knowledge of event-driven and cloud-native architecture patterns.
• Experience working in highly regulated environments with security and compliance requirements.
• Familiarity with CI/CD pipelines, DevSecOps practices, and automated deployment strategies.
• Experience with AI-assisted software development tools and engineering productivity platforms.

Benefits:

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance.
• Paid holidays plus Paid Time Off.
• 401(k) plan and contributions.
• Long-term/Short-term Disability.
• Paid Parental Leave.
• Employee Stock Purchase Plan.

**Please note: A few of our roles may require in-person interviews at Cognizant offices or client locations, depending on project or client needs.**

Compensation

The annual salary for this position ranges from $100,000 to $155,000, depending on experience and qualifications. This role is also eligible for Cognizant’s discretionary annual incentive program, subject to performance and applicable plan terms.

Disclaimer:

The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.