Cognizant Technology Solutions Corporation

About the role

As a Full Stack (.NET) Lead Developer, you will make an impact by leading the design and development of scalable, secure, and innovative enterprise applications. You will be a valued member of the Tax Innovation Technology team, collaborating closely with technical leads, developers, and cross-functional stakeholders to deliver high-quality solutions that drive efficiency for our Tax Line of Service (LoS) engagement teams and clients.

In this role, you will:

Lead full-stack development efforts across backend, frontend, APIs, databases, and cloud platforms.

Architect and implement modular monoliths, microservices, and event-driven systems using Clean Architecture and CQRS.

Guide technical discussions, code reviews, and architectural decisions to ensure scalable and maintainable solutions.

Build and scale .NET (C#/ASP.NET Core) applications orchestrating multi-agent workflows and streaming updates.

Collaborate in Agile ceremonies and pair/mob programming sessions to ensure high-quality, secure code delivery.

Work model:

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 2–3 days a week in a client or Cognizant office in Buenos Aires, Argentina. 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:

7+ years of software development experience, including 2+ years in a technical leadership role.

Expertise in .NET Core/.NET 6+ and .NET 8, ASP.NET Core, C#, and Entity Framework Core.

Strong frontend experience with Angular (v16+), NgRx, and Single-SPA microfrontends.

Proven experience with RESTful APIs, GraphQL, SignalR, and SQL Server optimization.

Hands-on experience with CI/CD pipelines (Azure DevOps), Docker, and Azure Kubernetes Service (AKS).

Deep understanding of Clean Architecture, CQRS (MediatR), and event-driven systems (MassTransit, Azure Service Bus/EventHubs).

Familiarity with GenAI tools (GitHub Copilot, Cursor) and AI engineering frameworks.

Experience with Azure cloud services including Functions, Storage, Key Vault, and Application Insights.

These will help you stand out:

Experience implementing Retrieval-Augmented Generation (RAG) pipelines and vector/hybrid search (Azure AI Search).

Familiarity with Microsoft Semantic Kernel or similar agent orchestration frameworks.

Knowledge of Power BI REST APIs and integration with data warehouses/lakehouses.

Strong background in testing (xUnit, Jasmine/Karma, E2E), TDD, and Agile methodologies.

Experience with authentication/authorization using JWT Bearer tokens and OpenAM.

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.

Benefits:

• A career in one of the largest and fastest growing IT services providers worldwide.
• Ongoing support and funding with training and development plans.
• Opportunity to work for leading global companies.
• Our work environment is diverse, collaborative and inclusive. We create conditions for everyone to thrive.
• A highly competitive salary and great benefits, such as OSDE for you and your primary family group, annual bonus and many other benefits that we are going to share during the selection process.

The Cognizant community:

We are a high caliber team who appreciate and support one another. Our people uphold an energetic, collaborative and inclusive workplace where everyone can thrive.

• Cognizant is a global community with more than 300,000 associates around the world.
• We don’t just dream of a better way – we make it happen.
• We take care of our people, clients, company, communities and climate by doing what’s right.
• We foster an innovative environment where you can build the career path that’s right for you.

About us:

Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World’s Best Employers 2025) is consistently listed among the most admired companies in the world. Learn how Cognizant helps clients lead with digital at www.cognizant.com

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.

Disclaimer:

Compensation 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.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

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