Software Engineer · .NET Core & Angular

Hi, I'm Najmul Islam Nayeem

Specialized in |

Software Engineer with ~4 years building scalable enterprise apps with C#, .NET Core, Angular & PostgreSQL — from high-throughput REST APIs to production ERP systems.

Dhaka, Bangladesh Available for high-impact opportunities
View Selected Projects Download Résumé
Md. Najmul Islam Nayeem - Software Engineer
⚡
4+ Yrs Exp
⚙️
.NET & Angular Core Stack
const dev = { focus: "High-Performance APIs", cleanArchitecture: true };

01 / About Me

Engineering with clarity,
building with purpose.

Professional Profile

I'm a Software Engineer with approximately 4 years of professional experience specializing in architecting and delivering enterprise-grade full-stack solutions. My core strength lies in translating complex business processes into clean, maintainable systems built on C# / .NET Core, Angular, and PostgreSQL.

From developing resilient RESTful microservices and modular monoliths to crafting responsive, state-managed SPAs with NgRx Signal Store and RxJS, I focus on performance, domain integrity, and testability.

Agentic AI Workflows SOLID & Clean Architecture Reactive Programming Team Leadership
0 ~

Years Experience

Building enterprise web systems and microservices

0 +

ERP Systems Shipped

Production footwear, retail & supply chain platforms

0 Devs

Engineering Leadership

Leading feature implementation, reviews & delivery

Agentic AI

AI & Agentic Workflows

LLM tool-calling, autonomous pipelines & AI integration

.NET & Angular

Primary Tech Stack

C#, ASP.NET Core, EF Core, PostgreSQL, RxJS

02 / Experience

Where I've made
an impact.

MultiTech Systems Ltd.

Software Engineer

April 2025 — Present Dhaka, Bangladesh

Key contributor to enterprise ERP solutions, leading backend architecture with .NET Core and integrating comprehensive UI modules with modern Angular.

  • Architected and implemented high-performance backend REST APIs and EF Core workflows on PostgreSQL.
  • Led end-to-end full-stack development of the Sales Module in Retailr ERP, enabling real-time order processing.
  • Engineered complex state management and reactive UI components in Angular 21 with NgRx Signal Store.
  • Resolved critical production issues, optimized SQL queries, and elevated overall platform stability.
C# .NET Core 10 ASP.NET Core EF Core PostgreSQL Angular 21 NgRx Signal Store REST APIs
Constant Concept Inc.

Software Developer

June 2022 — April 2025 Remote · Canada

Engineered and maintained high-traffic web applications for international clients across diverse industries.

  • Developed responsive, performant web applications using Angular and React with TypeScript.
  • Achieved a 20% reduction in page load times through modular lazy-loading and bundle optimizations.
  • Spearheaded a critical framework migration from Angular 12 to Angular 18, enhancing maintainability.
  • Integrated global payment gateways (Stripe & PayPal) and third-party webhook notification systems.
Angular React TypeScript RxJS Stripe & PayPal API Tailwind CSS Jest

03 / Selected Work

Products built for
real-world complexity.

💼 ERP Solution · Full-Stack
01

Retailr ERP

Comprehensive Retail & Enterprise Management Solution

Engineered for enterprise retail operations. Led full-stack implementation of the Sales Module, orchestrating real-time communication between POS, Inventory, CRM, and Accounting sub-systems.

  • Designed domain models and transactional APIs in .NET Core 10 & EF Core.
  • Built a lightning-fast Angular 21 interface using NgRx Signal Store for deterministic state flow.
  • Optimized PostgreSQL queries for high-volume sales transactions and inventory audits.
.NET Core 10 Angular 21 PostgreSQL EF Core NgRx Signal Store REST APIs
🏭 ERP Solution · Supply Chain
02

Instep ERP

Footwear Production & Supply-Chain Management Platform

Tailored production tracking system managing material acquisition, factory scheduling, batch validations, and export quality audits across manufacturing cycles.

  • Created production scheduling engines and automated supply-chain reporting.
  • Implemented strict role-based access control and audit logging.
  • Delivered rich reporting dashboards with exportable analytics.
.NET Core 10 Angular 21 EF Core PostgreSQL TypeScript
🐾 Modern Web App · SaaS
03

LoveBite.io

Full-Stack

Modern Pet Care Management Platform

Full-stack pet health management platform featuring Gemini AI consultation assistance, automated reminder schedules, Supabase auth/database, and Stripe recurring subscriptions.

Next.js 15 TypeScript Supabase Stripe Tailwind CSS Gemini AI
📚 EdTech · Interactive
04

Brightzy

Interactive

Interactive Learning Platform for Kids

Gamified educational web platform designed to build foundational reading and numeracy skills for early learners through interactive games, dynamic charts, and parent progress reporting.

Angular 12 Angular Material TypeScript RxJS SCSS

04 / Skills & Stack

Technical toolkit &
architectural competencies.

Languages & Core Frameworks

C# .NET Core ASP.NET Core Angular TypeScript JavaScript (ES6+)

Backend & Database Architecture

RESTful APIs EF Core PostgreSQL SQL Server Supabase Modular Monoliths Query Optimization

Frontend Ecosystem

Angular 21 RxJS NgRx Signal Store React Next.js 15 Tailwind CSS HTML5 / SCSS

Architecture & Methodologies

SOLID DRY & KISS Reactive Patterns State Management Performance Tuning Agile / Scrum

Testing, DevOps & Engineering Tools

Git / GitHub Bitbucket Azure DevOps Jest Cypress Playwright Angular TestBed Postman

05 / Education

Academic background in
Information & Communication Tech.

2023 — 2024

M.Sc. Engineering in ICT

Comilla University

Advanced coursework in Software Systems, Computer Networks, and Distributed Architecture.

2018 — 2022

B.Sc. Engineering in ICT

Comilla University

Foundational studies in Data Structures, Algorithms, Object-Oriented Programming, and Database Systems.

06 / Leadership & Activities

Guiding teams &
fostering community.

Team Leadership

Lead and mentor a team of 3 software engineers across sprint planning, daily standups, code reviews, and architectural alignment.

Technical Coordination

Facilitate cross-functional discussions between backend, frontend, and QA to ensure timely delivery and high engineering standards.

IT Society Leadership

Served as Organizing Secretary & Joint Secretary of the Comilla University IT Society, organizing hackathons, tech workshops, and student mentorship programs.

07 / Let's Connect

Let's build something
meaningful together.

Whether you're looking for an experienced engineer to architect scalable .NET and Angular systems, drive full-stack features, or elevate your team — I'd love to talk.

LinkedIn Profile ↗ GitHub Repositories ↗ Direct Email ↗