Available for Remote Work & Freelance📍 Khulna, Bangladesh

Md. Nazmul
Sheak

Senior Odoo Developer

I build scalable ERP systems, automate complex business workflows, and develop enterprise-grade software solutions — with 12+ years of proven delivery across 50+ projects in healthcare, manufacturing, and SaaS.

🤝 Hire Me 🚀 View Projects 📄 Download CV

Years Experience

Projects Delivered

ERP Implementations

% Satisfaction

nazmul_sheak.py — Odoo ERP Expert

1class csenazmul:
2  # 12+ years · Khulna, Bangladesh
3  role = "Sr. Executive IT Officer"
4  spec = "Odoo ERP + AI Automation"
5  skills = [
6    "Odoo 14–19 Enterprise",
7    "Python 3.12+ / Django",
8    "ERPNext / Frappe",
9    "LangChain + GPT-4o",
10    "Playwright Automation",
11  ]
12  def build_erp(self, client):
13    return "Enterprise ERP 🚀"

Odoo 19Python 3.12ERPNextDjango+DRFAI AgentsDockerPostgreSQLPlaywright

About Me

The Developer Behind the Systems

I'm a Senior Full Stack Odoo Developer and ERP Automation Specialist with 12+ years of experience. I currently serve as Sr. Executive IT Officer at Bangladesh Eye Hospital Khulna Ltd., where I architect and maintain mission-critical hospital ERP systems.

Over the past decade, I've delivered 50+ projects across healthcare, manufacturing, retail, and SaaS. My work spans custom Odoo module development, ERPNext implementations, REST API design, AI agent integration, and business automation using Playwright and Selenium.

I bridge complex business requirements with clean, maintainable, scalable software — always focused on delivering measurable ROI. I'm equally comfortable in boardrooms discussing process improvements and in the terminal debugging production systems at midnight.

Md. Nazmul Sheak

Sr. Executive IT Officer · Bangladesh Eye Hospital

📍 Khulna, Bangladesh · 12+ Years Experience

Odoo 12→14→16→17→19 Migration Expert

Healthcare ERP Architecture Specialist

AI Agent + LangChain Integration

DevOps — Docker, Linux, AWS, Nginx

Playwright + Selenium Automation Pro

REST API + GraphQL Architecture

PostgreSQL Performance Tuning

Multi-company ERP Implementation

GitHub Contribution Activity

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Career Journey

Work Experience

12+ years building, shipping, and scaling enterprise software across healthcare, education, and SaaS.

Sr. Executive IT Officer — ERP & Backend Developer

🏥 Bangladesh Eye Hospital Khulna Ltd.

📍 Khulna, Bangladesh

2018 – Present

Lead design, development, and maintenance of mission-critical hospital ERP systems. Full ownership from requirements analysis through production deployment and ongoing support, serving thousands of patients daily.

Architected 15+ custom Odoo modules: patient management, pharmacy, billing, lab, HR & payroll, accounting — 500+ daily users

Integrated AI-powered retina screening (ResNet50) and GPT-4o document processing into Odoo workflows

Built HL7 FHIR R4 REST APIs for mobile app and government health registry integration

Reduced manual administrative work by 60% through Playwright + Selenium automation

Migrated ERP from Odoo 12 → 14 → 17 → 19 with zero data loss and <4h downtime per upgrade

Odoo 14–19Python 3.12PostgreSQLHealthcare ERPREST APIDockerAI IntegrationHL7 FHIRLinux

IT Instructor — Web Development & Programming

🎓 Hope Polytechnic & Technical Institute

📍 Khulna, Bangladesh

2016 – 2017

Taught web development, database management, and programming fundamentals to diploma-level students. Developed practical curriculum bridging theory and real-world software development.

Designed and delivered curriculum for Python, web technologies, and database management

Mentored 60+ students in practical software development and ERP concepts

Supervised final-year technical projects covering web applications and database systems

TeachingPythonWeb DevelopmentDatabaseCurriculum Design

Freelance Odoo Developer & ERP Consultant

🌐 Independent — Upwork & Direct Clients

📍 Remote — USA, UK, Canada, Australia, UAE

2012 – 2016

Delivered 25+ freelance projects for international clients — custom Odoo deployments, Django applications, automation bots, and PostgreSQL-backed REST APIs. Built a strong reputation for quality and on-time delivery.

Implemented full Odoo setups for retail, manufacturing, and service companies across 8 countries

Developed Django + DRF backends with Stripe, PayPal, and local payment gateway integrations

Built Selenium automation bots saving clients 20+ hours per week of repetitive data entry

FreelanceOdooDjangoInternational ClientsAPI DesignAutomation

Technical Skills

Tools & Technologies

🐍Python 3.12+98%

🌐Django & DRF92%

⚡FastAPI85%

🔌REST API Design95%

🔧OWL Framework88%

📡WebSocket / Bus82%

🟣Odoo 14–19 Enterprise98%

🔧Custom Module Dev96%

🔵ERPNext / Frappe88%

💰Odoo Accounting90%

🏭Odoo Manufacturing85%

🚀Odoo Migration Expert95%

⚛React / Next.js82%

📜JavaScript ES202385%

🎨Tailwind CSS88%

📄QWeb Templates95%

🎭Playwright93%

🤖Selenium WebDriver90%

🕷️Scrapy82%

⚙️Celery + Redis85%

🐘PostgreSQL 1694%

🔵MySQL / MariaDB88%

🔴Redis82%

📊Query Optimization90%

🐋Docker + Compose88%

🐧Linux (Ubuntu)92%

☁️AWS (EC2/S3/RDS)78%

🌐Nginx + Gunicorn86%

🦜LangChain + RAG80%

🧠OpenAI GPT-4o API82%

🎙️Whisper ASR75%

👁️Computer Vision72%

What I Offer

Professional Services

End-to-end ERP development, backend engineering, AI automation, and cloud deployment — delivered with enterprise standards.

🟣

Odoo Development

Custom module development, OWL components, multi-company setups, and full Odoo 14–19 Enterprise implementations from scratch.

Odoo 19OWLQWebPython

🔵

ERPNext Development

DocType design, server scripts, custom reports, workflow automation, and complete ERPNext hospital & manufacturing setups.

ERPNextFrappePythonMariaDB

⚙️

Custom ERP Solutions

Bespoke ERP systems tailored to your industry — healthcare, manufacturing, retail — built for growth and scalability.

HealthcareManufacturingSaaS

🐍

Python Backend Dev

Django, FastAPI, and DRF backends with PostgreSQL. Clean architecture, JWT auth, comprehensive test suites, production-ready.

DjangoFastAPIDRFCelery

🔌

API Development

RESTful and GraphQL APIs, payment gateways, WhatsApp, HL7 FHIR R4, government registry integrations.

RESTGraphQLHL7 FHIROAuth2

🤖

AI Agent Integration

LangChain RAG chatbots, GPT-4o workflows, document OCR, voice-to-text, and intelligent ERP assistants.

LangChainGPT-4oRAGWhisper

⚡

Workflow Automation

Playwright and Selenium browser automation, scheduled jobs, Scrapy pipelines, and end-to-end process automation.

PlaywrightSeleniumScrapyCelery

☁️

Cloud Deployment

Docker containerization, Linux server setup, Nginx + Gunicorn, AWS EC2/RDS, and production-grade CI/CD pipelines.

DockerAWSNginxGitLab CI

Featured Work

Projects & Case Studies

🏥Odoo 17

Odoo Healthcare ERP

Bangladesh Eye Hospital Khulna Ltd.

Full Odoo 17 implementation — 15+ custom modules covering patient management, pharmacy, billing, lab, HR, payroll, and AI-assisted workflows. Serves 500+ daily users.

Custom MRN generation with multi-branch support

HL7 FHIR R4 API for mobile app integration

AI retina screening integrated into EMR

60% reduction in manual administrative work

Odoo 17PythonPostgreSQLOWLDockerHL7 FHIR

📋 Case Study GitHub Live

🏨ERPNext

ERPNext Hospital System

Private Hospital Group

Complete ERPNext hospital management with custom DocTypes for patient registration, appointment, ward management, billing, insurance claim processing, and analytics dashboards.

12 custom DocTypes with complex inter-module workflows

Insurance TPA integration with auto-claim generation

Real-time bed availability dashboard

ERPNextFrappePythonMariaDB

📋 Case Study GitHub

📦FastAPI

Sales & Inventory REST API

Retail SaaS Platform

High-performance FastAPI backend with JWT auth, real-time inventory tracking, multi-warehouse support, and analytics. Handles 1M+ API calls/day with <200ms p95 response time.

1M+ API calls/day, p95 <200ms response

Multi-warehouse inventory with Redis pub/sub

Automated reorder triggering via Celery

FastAPIPostgreSQLRedisDockerAWS

🔗 Live API GitHub

🤖Playwright

Visa Appointment Bot

Immigration Services Client

Playwright-powered automation bot for visa appointment scheduling, form filling, and status monitoring. Reduced manual effort from 3 hours to 8 minutes per application.

95% reduction in manual processing time

Multi-country support — 12 embassy portals

Real-time Telegram/WhatsApp slot alerts

PlaywrightPythonSeleniumFastAPIRedis

📋 Details GitHub

🛒Django

Multi-Vendor E-Commerce

BD Retail Group

Full-featured multi-vendor e-commerce built with Django + DRF. Product management, Stripe & SSLCommerz payment integration, order tracking, and vendor dashboard.

Multi-vendor with commission management

Stripe + SSLCommerz dual payment gateway

Automated order lifecycle email + SMS

DjangoDRFPostgreSQLCeleryStripe

🌐 Live Demo GitHub

⚡AI + Odoo

AI-Powered Workflow Suite

Hospital Administration

LangChain RAG + GPT-4o integrated with Odoo for automated document processing, smart insurance card OCR, voice-to-text clinical notes, and AI-assisted purchase order generation.

Insurance OCR: 93.8% field extraction accuracy

Voice-to-EMR with Whisper ASR + GPT-4o SOAP

Saved 3 hours/day per administrative staff

LangChainGPT-4oOdooPythonWhisper

📋 Case Study GitHub

AI Innovation

AI + Odoo Integration Projects

Where enterprise ERP meets modern artificial intelligence — delivering measurable automation gains.

Production Live

🎙️

Voice-to-Clinical Notes (Whisper ASR)

Doctors dictate → Whisper ASR transcribes → GPT-4o structures SOAP notes → auto-fills Odoo EMR form fields. Saves 3.2 minutes per consultation with ICD-11 code suggestions.

3.2min

Saved/visit

<12%

Word Error Rate

428

Notes/day

Production Live

📋

Insurance Card OCR Auto-Fill

PaddleOCR extracts patient name, policy number, member ID, validity, and plan type from insurance card photos. Auto-fills Odoo patient registration — reducing data entry time by 85%.

93.8%

Accuracy

841

Cards/month

<2s

Processing

Production Live

👁️

AI Retina Screening (ResNet50)

Fine-tuned ResNet50 on EyePACS grades diabetic retinopathy (No DR / Mild / Moderate / Severe / PDR) from fundus photos. Results linked to Odoo eye examination records with confidence scores.

91.4%

Accuracy

1,247

Screened

<3s

Inference

Beta

📈

No-Show Prediction (XGBoost)

XGBoost classifier trained on 2 years of appointment history predicts no-show probability at booking. High-risk patients receive extra WhatsApp reminders — reducing no-show rate by 18%.

0.78

AUC-ROC

↓18%

No-shows

Production Live

💊

Drug Interaction AI Checker

DrugBank API + NLP-based checker fires on every Odoo prescription line. Blocks dangerous combinations in real-time with severity classification (Major / Moderate / Minor).

342

Alerts/day

Blocked/day

<200ms

Response

Live

🤖

Patient Portal Chatbot (LangChain RAG)

LangChain + FAISS RAG chatbot on patient portal for hospital FAQ, appointment guidance, and health tips. Operates 24/7, handles 87% of queries without human intervention.

2,841

Conversations

87%

Resolved

4.2★

Rating

Deep Odoo Knowledge

Odoo Expertise Areas

Every module. Every version (14–19). Every business scenario.

🔧

Custom Module Development

Models, views, wizards, OWL components, QWeb reports, scheduled actions, and security rules from scratch.

💰

Odoo Accounting

Chart of accounts, multi-currency, bank reconciliation, financial reporting, and audit trails.

📦

Odoo Inventory

Multi-warehouse, lot/serial tracking, FEFO/FIFO strategies, barcode, automated reordering.

🏭

Odoo Manufacturing

Bills of materials, work orders, MRP planning, quality control, production order management.

👥

Odoo HR & Payroll

Recruitment, attendance, leave management, payroll computation, employee self-service portal.

📊

Odoo CRM

Lead pipeline, opportunity scoring, email marketing, activity scheduling, revenue forecasting.

🛒

Odoo POS & Website

Point-of-sale configuration, e-commerce store, product catalog, online payment integration.

🔌

Odoo API Integration

XML-RPC, JSON-RPC, REST controllers, webhook handlers, third-party system bridges.

🚀

Odoo Migration & Upgrade

Odoo 12→14→16→17→19 migration, data transformation, module porting, regression testing.

Deep Dives

ERP Implementation Case Studies

Real outcomes from real implementations — numbers that prove the value.

Healthcare · Odoo 17 Enterprise

Bangladesh Eye Hospital HMS ERP

Bangladesh Eye Hospital Khulna Ltd. · 2018–Present

Challenges Solved

Fragmented paper-based patient records across 3 branches
Manual pharmacy stock management causing expiry waste
No insurance claim automation — 40% rejection rate
Disconnected HR & payroll from operational data

Key Results

60%

Reduction in manual admin work

40%

Drop in claim rejection rate

500+

Daily active users

15+

Custom Odoo modules built

Automation · Python + Playwright

Enterprise Workflow Automation Suite

Multiple International Clients · 2020–2024

Automation Delivered

Visa appointment booking bots for 12 embassies worldwide
PDF data extraction into Odoo using OCR + GPT-4o
Scheduled report generation and email distribution
Web scraping pipelines for market intelligence (Scrapy)

Aggregate Impact

95%

Reduction in manual processing

20h+

Saved per client per week

99.9%

Bot uptime over 18 months

Countries served

Credentials

Certifications & Training

🟣

Odoo Functional Certification

Odoo S.A.

2022

🐍

Python Professional Certificate

Coursera / Google

2021

☁️

AWS Cloud Practitioner

Amazon Web Services

2023

🐘

PostgreSQL Administration

EnterpriseDB

2022

🔵

ERPNext Certified Developer

Frappe Technologies

2021

🤖

LangChain & AI Agents

DeepLearning.AI

2024

🐋

Docker & Kubernetes

Linux Foundation

2023

🌐

Django REST Framework

Udemy (Top Rated)

2020

Client Feedback

What Clients Say

★★★★★

Nazmul delivered our entire Odoo hospital ERP in record time. His understanding of healthcare workflows is exceptional — he knew exactly what we needed before we finished explaining. The production deployment was flawless with zero downtime.

Dr. Mohammed Rahman

Medical Director, Eye Hospital

★★★★★

We hired Nazmul for a complex Python automation project. His Playwright scripts automated 80% of our manual data entry. The code is clean, well-documented, and has run without issues for 18 months straight. Truly senior-level work.

Sarah Chen

CTO, SaaS Startup — Canada

★★★★★

Outstanding ERPNext implementation for our manufacturing unit. Nazmul handled everything from requirements to live deployment and staff training. His knowledge of manufacturing workflows and BOM configuration is genuinely world-class.

Ahmed Al-Karim

Operations Director — UAE

Technical Writing

Latest Articles

View All Posts →

🟣

Odoo Development

Building Production-Ready Custom Odoo 19 Modules in 2025

Step-by-step guide from manifest to CI/CD pipeline — testing, performance, and OWL best practices for Odoo 19.

May 20258 min read

Read Article →

🤖

AI + ERP Integration

Integrating GPT-4o with Odoo for Smart Document Processing

How I built an AI agent that extracts data from PDFs and auto-fills Odoo vendor bills — saving 3 hours per day.

Apr 202512 min read

Read Article →

⚡

Automation Engineering

Playwright vs Selenium in 2025 — Which for Enterprise Automation?

A practical comparison from 3+ years running both in production — performance, reliability, and maintainability benchmarks.

Mar 202510 min read

Read Article →

Book a Session

Book a Consultation

Strategy sessions, ERP audits, and project scoping calls — available globally via Zoom or Google Meet.

Choose a Session Type

All sessions via Zoom or Google Meet · UTC+6 (Bangladesh)

⚡

Quick Discovery Call (30 min)

Understand your requirements, assess fit, and outline next steps.

Free

🔍

ERP Audit & Review (60 min)

Deep-dive review of your existing Odoo/ERPNext setup with actionable recommendations.

$150 / session

🚀

Project Architecture (90 min)

Full technical architecture design for your ERP implementation with module planning and timeline.

$250 / session

Select a Date

Green = available · Click to select

Get In Touch

Let's Build Something Great

Available for full-time remote roles, freelance projects, and ERP consulting worldwide. Response within 24 hours guaranteed.

Whether you need a senior Odoo developer to join your team, a custom ERP built from scratch, or an automation engineer to eliminate repetitive workflows — I'm here to deliver measurable results.

📧

csenazmul@gmail.com

💬

WhatsApp (Instant Reply)

+880 1930352281

💼

linkedin.com/in/csenazmul

📍

Location

Khulna, Bangladesh · Open to Remote Globally

⏰

Availability