Hasan Sarwar Email & Phone Number

Remote

Key Achievements:● Led the development of the Chart of Accounts feature, enhancing financial management and operational efficiency across various shipping segments.● Directed the technical design and documentation of user stories and migration processes, ensuringsmooth transitions and team-wide understanding.● Engineered Automation Rules and Validations, reducing manual errors by 80% and improving userproductivity by 50%.● Developed a comprehensive OCR-based Supplier Invoice Processing System using Amazon Textract,MSAL for Azure authentication, and Microsoft Graph API, reducing invoice processing time by 70% andincreasing throughput by 3x.● Implemented automated invoice creation, generating supplier invoices from purchase orders or catalog items, and flagging unmatched invoices for manual review.● Integrated a robust error handling and reporting framework, logging 100s of errors daily, improvingissue tracking and team productivity.● Led refactoring and performance optimization efforts, improving system efficiency and response times.● Built and maintained unit testing suites with Jest, ensuring 90% software reliability and high code coverage.Tools & TechnologiesNode.js, Express.js, TypeScript, Python, Jest, REST APIs, RabbitMQ, Microsoft Graph API, AWS (S3,Textract, Lambda), MsSQL, MongoDB, TypeORM, Git, Agile methodologies

Lahore, Pakistan

Key Achievements:● Developed and integrated Single Sign-On (SSO) with Okta across 3 enterprise applications, improvingsecurity across multiple applications and boosting user retention by 20%.● Built bidirectional CRM integrations for over 10 platforms (e.g., Hubspot, ZohoCRM, Pipedrive,Intercom) using custom JSON mappings and Zappier, enhancing data flow efficiency by 90%.● Overhauled the reporting module and bulk data handler using BigQuery, reducing latency and bandwidthusage by 50%.● Developed a QR-code-based login system used by 2000+ daily active users, eliminating the need forpasswords and improving user engagement.● Implemented error handling and auto-retry mechanisms with GCP monitoring, achieving an 80%success rate in retrying failed transactions.● Led front-end development for perpetual activities settings using React hooks, improving UIresponsiveness for managing recurring activities.● Streamlined customer onboarding using Python scripts for bulk creation and data migration, improvingefficiency by 90%.● Refactored code using ES6+ features, optimizing performance and enhancing UI responsiveness.Tools & Technologies:Node.js, React.js, Python, GCP, REST APIs, Google Pub/Sub, Zappier, Twilio, Jinja, SendGrid, Bitbucket,PostgreSQL, Webpack, Babel, Agile methodologies