WNS, part of Capgemini, is an Agentic AI-powered leader in intelligent operations and transformation, serving more than 700 clients across 10 industries, including Banking and Financial Services, Healthcare, Insurance, Shipping and Logistics, and Travel and Hospitality. We bring together deep domain excellence – WNS’ core differentiator – with AI-powered platforms and analytics to help businesses innovate, scale, adapt and build resilience in a world defined by disruption.

Our purpose is clear: to enable lasting business value by designing intelligent, human-led solutions that deliver sustainable outcomes and a differentiated impact. With three global headquarters across four continents, operations in 13 countries, 65 delivery centers and more than 66,000 employees, WNS combines scale, expertise and execution to create meaningful, measurable impact.

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Role Overview

Senior Software Developer to build and optimize modular, cloud-native applications using .NET and C#. Developer will work on scalable systems that demand performance, maintainability, and production-grade resilience. This role requires strong coding fundamentals, architectural thinking, and hands-on experience applying GenAI to real-world use cases like document data extraction and intelligent automation.

Key Responsibilities

• Design and develop enterprise-grade modules using .NET Core, C#, and ASP.NET Web API
• Build secure, scalable services for data processing, system integration, and workflow orchestration
• Integrate with cloud platforms (Azure, AWS, or GCP) using services like Functions/Lambda, Blob/S3/Object Storage, Message Queues, Secrets Management, and Monitoring Tools
• Apply GenAI capabilities (e.g., OpenAI, Azure OpenAI) to extract structured data from unstructured documents such as invoices, forms, and contracts
• Optimize SQL queries and schema design for high-volume transactional systems
• Implement robust error handling, logging, and retry logic for production reliability
• Collaborate with architects and stakeholders to translate business requirements into technical deliverables
• Participate in code reviews, performance tuning, and debugging sessions
• Contribute to technical assessments
• Mentor junior developers and promote best practices in modular design and cloud development

Required Skills & Experience

• 7–10 years of professional experience in software development, with a strong focus on .NET Core, C#, and RESTful APIs
• Hands-on experience with cloud platforms such as Azure, AWS, or GCP
• Practical experience using GenAI models (e.g., OpenAI, Azure OpenAI) for tasks such as document data extraction, summarization, or classification — sandbox experimentation or basic API integration is expected
• Familiarity with serverless computing, event-driven architectures, and cloud storage patterns
• Deep understanding of SQL Server or equivalent RDBMS: indexing, joins, transactions, query optimization
• Experience building modular, testable codebases using SOLID principles
• Exposure to CI/CD pipelines (Azure DevOps, GitHub Actions, or equivalent)
• Strong debugging instincts and experience supporting production systems
• Ability to work independently and make sound architectural decisions

Preferred Qualifications

• Experience with low-code platforms (Power Automate, Power Apps, AppSheet)
• Knowledge of multi-tenant SaaS design and secure API development
• Hands-on with Polly, Serilog, or custom middleware
• Familiarity with performance profiling, memory diagnostics, and observability tools