Waheed Ullah

Senior.NET / Full-Stack Engineer

Profile summary

Career highlights

Key skills

Professional experience

Directed software development and application enhancement initiatives within an Agile engineering team, focusing on digital waste tracking, logistics operations, and traceability systems. Managed sprint planning, code reviews, testing, troubleshooting, and production support across development lifecycles.

• •Implemented CI/CD pipelines across Development and Test environments using Jenkins, Kubernetes, GitHub, and Harbor, automating application builds, containerization, and deployments while improving development efficiency by 20% through code cleanup, warning reduction, and elimination of duplicate code.
• •Increased automated test coverage from 40% to 85% by developing unit and integration tests for critical application components.
• •Improved database performance by 30% by optimizing SQL queries and database operations, reducing response times across key application workflows.
• •Developed and enhanced the Trace application using.NET 9 and Angular to support digital waste tracking, logistics operations, and traceability.
• •Researched and prototyped AI integration in ASP.NET Core using Ollama, Azure AI Services, RAG, vector databases, Semantic Kernel, and Microsoft.Extensions.AI.

Managed fintech platform engineering, overseeing backend services and internal administration tools. Directed technical onboarding and mentoring for a team of junior developers while coordinating third party software integrations and cloud storage deployments.

• •Built automated unit and integration testing using xUnit, achieving up to 90% unit test coverage across supported services.
• •Developed.NET Core microservices and REST APIs for digital wallet and fintech platforms supporting money transfers and bill payments.
• •Migrated application configuration to Kubernetes Secrets and managed PostgreSQL, Redis, and RabbitMQ infrastructure.

Executed software engineering tasks supporting core business operations, managing backend services for asynchronous processing and integrating enterprise systems with retail Point of Sale platforms across Windows Server infrastructure. Collaborated with internal teams to build Python applications.

• •Implemented SAP Business One Service Layer integrations with ASP.NET Core applications and connected retail POS systems with SAP B1.
• •Designed and executed an ETL integration pipeline using ASP.NET Core to extract, transform, validate, and load transactional data between a POS system and SAP Business One.
• •Deployed and configured.NET Core applications on Windows Server 2012 R2 while working alongside Python developers on Django applications.

Handled the creation of healthcare solutions, business applications, and CRM portals using ASP.NET MVC, AngularJS, SQL Server, and Bootstrap. Managed database access and query optimization through ADO.NET, Entity Framework, and Dapper.

• •Migrated legacy projects from.NET Core 2.0 to 3.1, integrated Stripe Checkout, and implemented authentication and authorization using ASP.NET Identity and JWT.
• •Built a chatbot using Microsoft Bot Framework, ASP.NET Core, and Xamarin.Forms for automated customer interactions and order assistance, alongside a client-management mobile application with local SQLite storage.

Projects

Digital-wallet ecosystem supporting money transfers, bill payments and merchant transactions across telecom and banking networks in Madagascar.

Backend services for digital-wallet platforms serving millions of users and supporting mobile-money transfers, airtime purchases and bill payments.

Backend services for SIM registration, money transfers and bundle purchases.

POS integrations for pharmacy and restaurant systems, automating sales-order creation and data synchronization.

Enhanced HR, Finance, and Inventory modules, improving data consistency and usability.

Education

Languages