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Ahmed Shabbir

@ahmedshabbir

Integration Engineer who delivered multi-tenant SaaS integrations for QuickBooks Online, SendGrid, and Google Workspace.

Pakistan

Message

At AccuraCore, I architected multi-tenant SaaS integrations for QuickBooks Online, SendGrid, Google Workspace, and Authorize.net, publishing Node.js REST APIs through Azure API Management.

I implemented secure API policies and end-to-end workflows, including QuickBooks Online ledger sync and OAuth-secured webhooks. I also built Azure DevOps pipelines for API and policy deployments.

At Stewart Pakistan, I developed REST and SOAP APIs, reusable integration assets, and secure B2B document exchange using webMethods. I led the installation, upgrade, and testing of webMethods 11.1, and mentored junior developers.

At Systems Limited, I designed and published APIs through IBM API Connect, managed their lifecycle, and configured security and traffic policies. Across my integration projects, I’ve worked with Azure Integration Services, AWS migration workflows, and government API integrations on IBM API Connect.

Experience

Work history, roles, and key accomplishments

Senior Integration Engineer

AccuraCore

Feb 2026 - Sep 2026 (7 months)

Architected multi-tenant SaaS integrations for SendGrid, Google Workspace, Authorize.net, and QuickBooks Online using Node.js REST APIs published and governed through Azure API Management. Configured Azure APIM products, APIs, and operations with OAuth 2.0, JWT, API key policies, rate limiting, throttling, caching, routing, and request/response transformations.

NodeJS Azure API Management OAuth JWT API Keys Rate limiting Throttling Caching Routing Request Response Analysis Sendgrid Google Workspace Authorize.Net Quickbooks Online Azure DevOps CI CD Git AWS EC2 Aurora S3 ETL

Senior Software Engineer (webMethods)

Stewart Pakistan

Apr 2024 - May 2026 (2 years 1 month)

Developed RESTful APIs, reusable canonical documents, Flow Services, and Java Services to integrate backend systems using JDBC adapters for scalable integrations. Configured and managed Trading Networks partner profiles, document types, and processing rules for secure B2B document exchange.

WebMethods REST APIs Java JDBC Trade Networks B2B Integration CI CD Mentorship

Junior Consultant Integrations

Systems Limited

Sep 2022 - Apr 2024 (1 year 7 months)

Designed, developed, and published RESTful and SOAP APIs on IBM API Connect, including API definitions, products, plans, and gateway deployment. Managed end-to-end API lifecycle in IBM API Connect covering versioning, staging, environment promotion, publishing, and Developer Portal exposure.