Ahmad Usman

Experience

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  Online Health Company (Ohealth)

  Oct 2018 - May 2020

  Backend Developer

  -Developed a robust system for real-time consultations between medical practitioners and users via chats, voice, and video calls- Participated in in-depth product design sessions to develop detailed requirements for architecting a comprehensive telemedicine platform.- Implemented data security measures, including authentication and authorization protocols, to protect sensitive health data.- Reduced API documentation production time by 50% by migrating from Postman API docs to Swagger- Developed automated tests for reducing the number of bugs and issues in production by 40% - Maintained the AWS cloud infrastructure used to process massive amounts of data- Worked closely with business users regarding data validation resulting in positive feedback and increased adoption- Worked with Agile/Scrum teams to deliver high-quality software Show less

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  EpidAlert

  Jun 2020 - Sept 2022

  Software Engineer

  - Implemented data security measures, including authentication and authorization protocols, to protect sensitive health and travel data.- Accomplished least privilege policy on the administrative infrastructure by implementing Identity and Access Management using Django permissions and groups.- Managed project dependencies using Poetry and enforced coding standards with Pre-commit hooks, maintaining code quality and consistency throughout the development lifecycle.- Created comprehensive documentation for the backend system, including API endpoints, data models, ETL pipelines and integration guides.- Supported product owners across several domains to enable the development of product roadmaps.- Collaborated with the frontend development team to ensure that the user experience was intuitive and user-friendly, resulting in high user adoption rates and positive feedback from consumers.- Developed serverless computing for cost-effective execution of short-lived tasks using AWS Lambda.- Established ETL pipelines for ingesting, cleaning and enriching user data from diverse sources.- Designed CI/CD pipelines for efficient development and deployment processes..- Implement robust logging and monitoring solutions to track system performance, identify bottlenecks, and troubleshoot issues Show less

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  Data2Bots

  Oct 2022 - now

  Data Engineer

  - Performed in-depth data analysis needed for developing fit-for-purpose datasets- Implemented Glue ETL jobs using PySpark for data transformation.- Created transformation logic to clean, enrich, and prepare the data for the target.- Utilised DevOps practices, including infrastructure-as-code and CI/CD pipelines, to automate data pipeline deployment and improve development efficiency.- Implemented security measures to protect sensitive data and prevent unauthorized access.- Supported product owners across several domains to enable the development of product roadmaps.- Identified data dependencies and potential issues that may arise during migration.- Created comprehensive documentation for the migration tool, including ETL jobs, data dictionaries, and validation procedures Show less

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  Blue Harvest

  Jul 2024 - now

  Senior Data Engineer