Refat Bin Mustaque

About

Software Engineer

Software Engineer with 7.5+ years of experience designing and delivering scalable enterprise and SaaS applications across the UK and Bangladesh. Currently leading development of the frankk. Direct Mail platform at BakerGoodChild, enabling direct mail campaign automation for 800+ users through real-time analytics, API integrations, and high-volume processing.

Strong expertise in ASP.NET Core, MVC, Web APIs, Entity Framework, Identity, SignalR, Azure, and distributed system design, with hands-on experience in payment gateway integration, background job processing, and performance optimisation. Proven ability to design secure, layered architectures and build production-grade APIs used by external clients.

Experienced in leading teams, owning end-to-end systems, and delivering measurable business impact, including cost reduction, scalability gains, and performance improvements across enterprise platforms. Delivered solutions for pharmaceutical, fintech, SaaS, logistics, and government-related systems. Holds a B.Sc. in Computer Science & Engineering with professional experience in ASP.NET Core-based enterprise system architecture.

Experience

03/2024 – Present

Software Engineer (Lead Developer) – BakerGoodChild DM Ltd, Birmingham, UK

Leading end-to-end development of the PrintWeek-featured frankk. direct mail platform, including architecture, secure API integrations, and automation workflows. Own production delivery across authentication, payments migration, real-time notifications, and performance optimisation for reliable high-volume campaign processing.

02/2020 – 11/2023

Software Engineer – IMpulse (BD) Ltd, Dhaka, Bangladesh

Led end-to-end delivery of ElibPubmed for Idorsia Pharmaceuticals, owning feature releases, support, stakeholder collaboration, and developer mentoring. Contributed to CLS24 and BTI CRM enhancements, led PostgreSQL/Redis infrastructure reliability, and supported IRelease QA validation across enterprise release cycles.

04/2019 – 01/2020

Software Engineer – Alphasoft Technology Limited, Dhaka, Bangladesh

Owned feature delivery for payroll and HR systems, building UI, backend logic, reporting, and role-based access using ASP.NET Core MVC, Entity Framework, SQL Server, and Identity. Contributed to hospital management modules for appointments, patient records, document workflows, and SignalR-powered real-time dashboards and OPD queue management.

09/2018 – 03/2019

Junior Software Developer – Toiree IT & E-commerce Service, Dhaka, Bangladesh

Independently developed and delivered a restaurant reservation platform using ASP.NET MVC, Web API, SQL Server, and Identity-based role management. Built core booking workflows, availability and reservation management, API integrations for WordPress sites, and automated email notifications for customer communication.

09/2017 – 12/2017

Internship – Unlocklive IT Limited, Dhaka, Bangladesh

Contributed to UI module development and reporting features for Bangladesh Navy logistics and legal-domain projects using PHP Yii2, Bootstrap, and jQuery. Implemented PDF/Word report generation with mPDF and PHPWord templates and supported supervised delivery of production-ready features.