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Bilal Waseem

@bilalwaseem

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Senior Software Engineer specializing in distributed systems and secure APIs.

Pakistan

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What I'm looking for

I am seeking backend or full-stack roles focused on distributed systems, secure APIs, cloud-native architectures, and strong team collaboration with opportunities to improve reliability and automation.

I am a Senior Software Engineer with over 10 years building distributed systems, specializing in C#/.NET, ASP.NET Core, and enterprise financial applications. I focus on reliable, maintainable code and strong documentation practices.

I have designed and implemented secure backend APIs, serverless AWS services, and event-driven workflows using technologies like Lambda, API Gateway, EventBridge, SQS, and DynamoDB. I led migration of legacy authentication to Okta and implemented OAuth2/OpenID Connect flows to improve security and login reliability.

My experience includes building customer onboarding, account verification, and payment-related workflows, supporting production systems, and improving observability with CloudWatch and Datadog. I automate CI/CD pipelines with GitHub Actions and participate actively in code reviews and technical design discussions.

I am comfortable collaborating with cross-functional and remote teams across QA, delivery, and customer success, and I bring practical experience in both backend services and frontend interfaces using React and Angular.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

X-Team

Oct 2021 - Present (4 years 8 months)

Owned backend services and authentication workflows for a global payments platform, designing secure APIs and AWS serverless components that improved login reliability and operational resilience. Built event-driven processing with EventBridge/SQS/SNS and improved observability using CloudWatch and Datadog.

C .NET ASP.NET Core AWS Lambda API Gateway DynamoDB EventBridge OAUTH2 OIDC Datadog

Senior Software Engineer

Xavor Corporation

Jul 2021 - Oct 2021 (3 months)

Led development and production deployment of RESTful APIs and modular backend components for enterprise financial systems, improving maintainability and CI/CD automation. Supported integrations and client onboarding for international customers.

.NET Core SQL Server Azure AWS React Angular CI CD API Design Release Management

Software Engineer

Xavor Corporation

Oct 2018 - Jun 2021 (2 years 8 months)

Implemented REST APIs, database integrations, and IoT cloud backends using ASP.NET Core and Azure services, and supported client onboarding and production releases across environments. Improved device telemetry processing and service reliability.

ASP.NET Core SQL Server Azure Functions Azure IoT Hub Entity Framework Release Management

Blockchain Developer Intern

Blockchain Expert Solutions

Feb 2018 - Apr 2018 (2 months)

Developed cryptocurrency payment APIs and wallet authentication services using TypeScript/Node.js and built Ethereum smart contracts in Solidity for transaction workflows.

TypeScript Node Solidity Ethereum Smart Contracts Angular API Development

Full-Stack Developer

Freelance

Mar 2016 - Jan 2018 (1 year 10 months)

Delivered full-stack web applications, designing REST APIs and database schemas and building responsive frontends while managing deployments and post-release support.

TypeScript ASP.NET REST APIs SQL JavaScript HTML5 CSS3 Deployment