Rezaul Karim

Senior Software Engineer

Software Engineer with 5+ years of experience building scalable applications using C#, .NET, Entity Framework Core, Azure Functions, and Azure Storage. Experienced in developing modern web applications, backend services, and maintaining clean architecture and coding standards. Skilled in problem-solving, competitive programming, and translating business requirements into efficient technical solutions. Currently working with OpenAI technologies and agentic AI development, including prompt engineering, multi-model evaluation, response testing, and locally hosted LLMs using Ollama. Experienced in mentoring junior developers and supporting smooth release processes.

[email protected] +8801314990844 Dhaka,Bangladesh

Languages

Skills

Certifications

Work Experience

Senior Software Engineer

NEXUS / HDC

JUL 2023 — PresentCurrent

Collaborated closely with the Nexus / HDC(https://www.nexus-hdc.com) team to deliver scalable and high-quality software solutions aligned with business requirements. Led the migration of a desktop-based WPF application to a modern web-based platform using C# 14, .NET 10, and Entity Framework Core 10.Designed and developed backend services leveraging Azure Storage, Azure Functions, and modern .NET technologies to ensure performance, scalability, and reliability.Built and maintained responsive frontend components using Telerik jQuery UI, enhancing user experience and application functionality.

Software Engineer L-II

Vivasoft Limited

Jun 2022 — Jun 2023

Collaborated with development and business teams to deliver scalable and efficient software solutions. Communicated with clients to gather requirements, prioritize features, and align development goals with business needs. Developed and maintained scalable applications using C#, ASP.NET Core, and SQL Server.Managed and contributed to multiple projects simultaneously while ensuring timely delivery and code quality.

Junior Software Developer

Implevista BD Limited

Jan 2020 — MAY 2022

Worked with ASP.NET, .NET Core Web API, C#, SQL Server, and Angular to develop ERP and accounting software solutions under senior developer supervision.
Collaborated with senior engineers to strengthen software development, problem-solving, and industry best practices.

Skills

C#.NETWEB APIAzure Storage and FunctionsOOPSolidOpen AIAngular 9JqueryHTMLBootstrapCSSSQLPostgre SQLMSSQL ServerLINQGITJWTOAUTHProblem SolvingData StructuresAlgorithm

Education

BSc Computer Science, Computer Science

University of Manchester

2016 — 2019First Class Honours

Certificates

Problem Solving (Intermediate) Certificate (09/2020 - Present)

Hackerrank

Sep 2020

View credential

PostgreSQL Essential Training

Linkedin Learning

April 17, 2025

View credential

Languages

English

Intermediate

Bengali

Native