Job Description

Company Description
WNS (Holdings) Limited (NYSE: WNS), is a leading Business Process Management (BPM) company. We combine our deep industry knowledge with technology and analytics expertise to co-create innovative, digital-led transformational solutions with clients across 10 industries. We enable businesses in Travel, Insurance, Banking and Financial Services, Manufacturing, Retail and Consumer Packaged Goods, Shipping and Logistics, Healthcare, and Utilities to re-imagine their digital future and transform their outcomes with operational excellence.We deliver an entire spectrum of BPM services in finance and accounting, procurement, customer interaction services and human resources leveraging collaborative models that are tailored to address the unique business challenges of each client. We co-create and execute the future vision of 400+ clients with the help of our 44,000+ employees.

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

Qualifications
Required Skills & Experience

• 5-7 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

Skills Required