Mujassir Nasir

Experience

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  Intelliscence Inc.

  Jun 2012 - Aug 2013

  Software Engineer

  - Enhanced the ARS ticket system's performance by three times with database indexing and query optimization in an ASP.NET Web Forms front-end application. It led to low latency and limited reservation conflicts to around zero.- Migrated the ARS application's entity framework data-access layer from a database-first to a code-first approach, minimizing the unit testing and troubleshooting costs by 40% and improving performance by 20%.- Created relational database designs and conducted extensive query analysis with T-SQL.- Introduced the company to relevant source control systems. Show less

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  ZIN Technologies Ltd

  Sept 2013 - Aug 2016

  Sr. Software Engineer

  - Built a monitoring service for Wyless while at ZIN to track customer usage data and perform in-time actions, such as suspend and plan change, saving them around $18 thousand a quarter.- Architected and developed a cache service for the most frequently used SIM listing page to store and sort more than 300 million records improving performance by four times.- Developed a configurable reporting module that helped the development team create new reports with a set of configurations that reduced UI reporting work by 99%.- Created a Plesk-like admin utility web app to manage Windows Services operations, including start, stop, status, and related logs. It reduced the DevOps team's effort by 40%. Show less

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  Xavor Corporation

  Sept 2017 - Dec 2020

  - Planned and developed the foundation of Xavor's product Smart PLM with the Neo4j graph database, which presents top-notch performance to handle hierarchical data of multi-level BOM. It was tested with up to 10 levels and more than a million records.- Produced loosely coupled and reusable solutions, such as configurable reporting, role-based security, and notification modules to be used in other fintech products, reducing the development costs by 70%.- Designed a custom role-based security module empowering the customers to handle action-level access on each page and increasing new customer acquisition by 30%. Show less

  • Software Architect

    Sept 2016 - Dec 2020

  • Principal Software Engineer

    Sept 2017 - Jun 2020
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  NETSOL Technologies Pakistan

  Dec 2020 - Mar 2023

  Software Architect

  - Led development teams, creating and implementing a workflow that keeps everyone in syncand allows them to complete their tasks on time. Delegating tasks, providing direction, andmentoring each team member.- Led the design and implementation of the document review and approval process with the Elsaworkflow engine, task queue, and digital signatures.- Converted the existing WCF web services to .NET Core microservices deployed on the Azureenvironment as App Services. The load testing showed a significant improvement in the highavailability and performance boosted up to 35%.- Migrated legacy web services to Azure Functions, enabling limitless scaling under peak times orload.- Established coding guidelines and standards for development teams, significantly improvingcode readability and reducing new bug reporting by 25%. Show less

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  Sonic Healthcare

  Mar 2023 - now

  Full Stack Engineer

  - Developed a microservices-based lab test and reporting application using .NET Core APIs, CQRS with Mediator Pattern, RabbitMQ, Redis, and Angular.- Built multiple .NET Core APIs for microservices architecture and integrated OAuth client for authentication.- Developed a patient portal for test booking and a commercial portal for company beneficiaries.- Integrated payment gateway, form builder, and location-based services for enhanced user experience.- Implemented OTP-based mobile verification and Commpath integration for secure authentication.- Designed ERD diagrams, flowcharts, and system architecture for documentation and development planning.- Wrote unit test cases to ensure code reliability and maintainability.- Managed CI/CD, development, and documentation using Azure DevOps, Docker, JIRA, and Confluence across dev, QC, UAT, and production environments. Show less