Mahmud Koli | Senior Software Engineer

Professional Summary

Innovative Senior Software Engineer with 7+ years of experience designing and optimizing scalable web applications and leading high-performing teams in Agile environments. Expertise in full-stack development with a focus on .NET Core, Angular, SQL, and MongoDB, delivering solutions that boost efficiency, security, and user satisfaction. Passionate about leveraging cutting-edge technologies to solve complex business challenges at scale.

Professional Experience

Senior Software Engineer

Brain Station 23 PLC

Apr 2020 – Present

Transformed sales operations by leading the development of a Sales Force Automation system managing 30K+ daily orders for 3K+ employees, achieving a 40% efficiency gain.
Optimized system scalability using MongoDB, caching, CQRS, and table partitioning, reducing database read latency by 40%.
Designed and implemented a secure permission-based authorization system with full access control, improving compliance by 25%.
Integrated a background task scheduling system, reducing processing delays by 30% and improving operational efficiency.
Streamlined recruitment workflows for MetLife (Nepal & BD), cutting operational delays by 40%.
Implemented Single Sign-On (SSO) using SAML2, centralizing user authentication across multiple applications and improving security by reducing access vulnerabilities.
Developed bi-directional user synchronization system using .NET Core and RabbitMQ, enabling real-time data sync across 3 applications.
Integrated Salesforce CRM and Tableau analytics using REST APIs, enabling automated reporting dashboards.

Tech Stack: .NET Core, Angular, MSSQL, MongoDB, Caching, Hangfire, Azure Blob, AWS S3, RabbitMQ, CQRS, Clean Architecture, DDD, SAML2, SSO, Salesforce API, Tableau API

Software Engineer

Encoders Infotech Ltd.

Dec 2018 – Mar 2020

Developed forecasting and invoicing features, decreasing support tickets by 20%.
Improved supply chain accuracy by optimizing inventory tracking processes, achieving a 15% reduction in discrepancies.
Enhanced user experience by reducing page load times by 30% through query optimization and AJAX-based interactions.

Tech Stack: ASP.NET MVC, MSSQL Server, JQuery, AJAX

Key Projects

LEADRS - Stella Software (US Law Enforcement Platform)

Developed enterprise SSO and user synchronization system using .NET Core, SAML 2.0, and RabbitMQ for US law enforcement agencies.
Integrated Salesforce CRM and Tableau REST API for analytics and reporting automation.

GPL-MSFA (Sales Automation Platform)

Architected and deployed a platform for General Pharmaceutical Ltd., processing 30K+ daily orders for 3K+ employees.
Achieved a 40% performance improvement via MongoDB, caching, and table partitioning.

MetLife-MARS (Recruitment Automation)

Automated MetLife's recruitment processes, integrating training and onboarding workflows, resulting in a 40% reduction in process delays.

BGMEA-UDAS (Export Declaration Automation)

Enhanced export reliability by leveraging RabbitMQ and AWS S3 for optimized workflows.

Berger (Paint Calculator & Lead Generator)

Increased engagement by developing tools for paint area calculation and cost estimation, driving lead generation.

Email Marketing System (Personal Project)

Built an automated email scheduling platform, minimizing manual intervention.
GitHub: github.com/DevSkillDotnet/EmailMarketing
Demo: youtube.com/watch?v=d4_JOtY1P1I

Education

DIU

Daffodil International University

BSc in Computer Science & Engineering – 3.74 / 4.00 | 2019

Technical Skills

Programming Languages

C# (Expert), TypeScript (Proficient), SQL (Advanced)

Frameworks

.NET Core, Angular, Entity Framework Core

Databases

MSSQL, MongoDB

Tools

RabbitMQ, Docker, Hangfire, CI/CD (GitHub Actions)

Cloud Platforms

Azure Blob, AWS S3

Authentication & Security

SAML2, Single Sign-On (SSO), RBAC

Integrations

Salesforce API, Tableau REST API

Leadership

Team Lead, Code Reviews, Agile/Scrum

Languages

Bangla: Native English: Business Fluent