Resume

Professional experience and qualifications.

Charlie Coder
K Md Mamunur Rashid

Senior Python Developer & Agentic AI Developer

Technical Skills

Programming Languages

95%
PythonJavaScriptTypeScriptSQLBashSolidity

Web Frameworks

90%
DjangoFastAPIReactNext.js

Databases

85%
PostgreSQLMongoDBRedisMySQLElasticsearchFAISSChromaQDrant

Cloud & DevOps

80%
AWSDockerKubernetesCI/CDTerraform

AI & ML

85%
Scikit-learnOpenAI APILangGraphLangChainHuggingFaceLLAMA3CrewAIAutoGen

Data Engineering

90%
SnowFlakePandasNumPyETLData Pipelines
Certifications

Introduction to LangGraph

LangChain Academy

2025

Agentic AI with LangGraph, CrewAI, AutoGen and BeeAI

Coursera

2025

Architecting Solutions on AWS

Coursera

2024

Generative AI Advance Fine-Tuning for LLMs

Coursera

2025

Generative AI: Prompt Engineering Basics

Coursera

2025

Generative AI and LLMs: Architecture and Data Preparation

Coursera

2025

Professional Summary

Experienced Python developer with 14+ years of expertise in building scalable web applications, data pipelines, chatbots, and AI-driven solutions. Proven track record of leading development teams, optimizing system performance, and delivering enterprise-grade software solutions. Passionate about leveraging cutting-edge technologies to solve complex business problems.

Professional Experience

Senior Full Stack Developer

Vraxa

July 2025 - ContinueFull time
  • Developing a rental application similar to Airbnb, tailored for the Gulf region.
  • Incorporating innovative features to enhance user experience and compliance.
  • Utilizing a modern tech stack for scalable and efficient deployment.
Next.jsFastAPIAWS SQSAWS SNSAPI GatewayAWS RDSDocker

Full Stack Python Developer

Cloud Custom Solutions

Aug 2024 - Apr 2025Arizona (Remote, Part time)
  • Modernized a legacy system from Python 3.6/Django 2 to Python 3.12/Django 5.1, enhancing security and performance.
  • Boosted system scalability by replacing Google Tasks with a Celery + Redis architecture for robust asynchronous processing.
  • Designed and implemented an Agentic AI-powered RAG chatbot using LangChain, LangGraph, and ChromaDB.
  • Led development of AI-driven marketing automation tools by orchestrating LangChain, LangGraph, and n8n.
PythonDjangoCeleryRedisLangChainLangGraphChromaDBAWS SQSTwilion8n

Senior Software Engineer

Savvie International Corp

Apr 2024 - Aug 2024Canada (Remote, Contract)
  • Optimized and automated ETL pipelines using Snowflake Snowpark and AWS, significantly improving data processing speed.
  • Engineered a high-performance vector-based semantic search system using FastAPI and Pinecone, dramatically improving product discovery.
  • Developed robust machine learning models for product classification with high accuracy using TensorFlow and Keras.
  • Designed and deployed scalable, cloud-native architectures on AWS, ensuring high availability for real-time workloads.
Snowflake SnowparkAWSECSFastAPIPineconeSentence-TransformersTensorFlowKerasScikit-learnCeleryRedis

Senior Software Engineer

W3Engineers Ltd

Apr 2023 - Mar 2024Dhaka
  • Designed and optimized large-scale ETL pipelines using Python and PySpark for fast, reliable data ingestion.
  • Led full-cycle development of Django applications, building high-performance APIs with Django REST Framework.
  • Engineered resilient cloud-native architectures using Kubernetes and Docker, delivering seamless CI/CD pipelines.
  • Developed a machine learning-powered cost prediction system to provide accurate forecasting and business insights.
PythonPySparkPandasDjangoDRFCeleryRedisKubernetesDockerAWSLangChain

Senior Software Engineer (Lead) & DevOps

EkkBaz

Apr 2022 - Dec 2022Dhaka
  • Contributed as a core developer to a B2B marketplace startup, streamlining inventory management and digital financing.
  • Led the migration of legacy APIs to a modern Python/Django REST framework, improving system scalability and performance.
  • Designed and implemented robust RESTful APIs to ensure seamless integration between frontend and backend systems.
  • Optimized data architecture by integrating both SQL (AWS RDS) and NoSQL databases for high-volume data handling.
PythonDjango (DRF)ReactRabbitMQAWSAPI GatewayRDSEC2Node.js

Full Stack Web Developer

Cloud Custom Solutions

Jan 2019 - Feb 2021Arizona (Remote, Full Time)
  • Architected and developed a seamless B2B procurement system to enhance supplier-buyer collaboration.
  • Engineered a high-performance matchmaking platform, leveraging intelligent algorithms to optimize user pairing.
  • Built a robust multi-level marketing (MLM) platform, automating complex referral structures and payout mechanisms.
  • Contributed to a mission-critical geospatial intelligence platform for the US Army using Django and PostGIS.
PythonDjangoReactElasticsearchPostgreSQLRedisCeleryTwilioAWSPostGIS

Full Stack Web Developer

Scom.ca (Paul Kudla)

May 2014 - Sep 2017Ontario, Canada (Remote, Full Time)
  • Delivered custom business solutions for high-profile clients including Premier Elevator and Volvo Trucks North America.
  • Developed systems for product and inventory management, invoicing, procurement, sales, and driver scheduling.
  • Designed and implemented a stock and supply management system for iMeter24.
  • Developed a real-time digital meter interface for live readings, remote control, and automated invoicing.
PythonDjangoPostgreSQLBootstrapjQueryAngularElasticsearch

Python Django Developer

Supreme Supports Pty Ltd

Sep 2013 - Apr 2014Dhaka
  • Developed complex features and implemented automated testing to ensure high code quality and reliability.
  • Played a key role in resolving critical geospatial issues for a US Army location-based application.
  • Utilized PostGIS to troubleshoot and rebuild a previously broken system, significantly enhancing data accuracy and performance.
PythonDjangoPostGIS

Software Engineer

PubliSeek

Apr 2013 - Aug 2013Dubai (Remote, Full Time)
  • Developed a robust and scalable web application with a strong focus on seamless user experience and efficient data management.
  • Designed and implemented custom features and integrated third-party APIs tailored to business needs.
  • Streamlined operational workflows and enhanced the company's digital presence.
PythonDjango

Software Engineer

NewsCred Inc

Jan 2012 - Mar 2013Dhaka
  • Developed and enhanced CMS and control panel systems using Python, Django, and PostgreSQL.
  • Championed and successfully integrated Behavior Driven Development (BDD) into the development workflow.
  • Utilized Selenium, Lettuce, and Cucumber to implement BDD, leading to improved test coverage and early bug detection.
PythonDjangoPostgreSQLSeleniumLettuceCucumber

Web Developer

Kazi IT Center Ltd

Sep 2011 - Dec 2011Dhaka
  • Contributed to the development and maintenance of client websites for atoztasks.com.
  • Provided effective troubleshooting and issue resolution to ensure optimal application performance and stability.
PythonDjangoBootstrapPostgreSQL

Assistant Network Engineer

Onecall Solutions Limited

May 2008 - Jun 2009Dhaka
  • Provided timely and effective technical support and troubleshooting to network users, minimizing downtime.
  • Delivered procedural guidance and training to ensure proper use of network resources.
  • Maintained strict confidentiality and security of sensitive network data.
Key Projects

Agentic AI-Powered RAG Chatbot

Designed and implemented a highly responsive RAG-based conversational system for LinkFusion using an agentic architecture to handle complex user queries and tasks seamlessly.

PythonLangChainLangGraphChromaDBAWS SQSTwilio

Impact: Delivered a scalable, multi-channel conversational AI that significantly improved user engagement and automated complex interactions.

High-Performance Semantic Search System

Engineered a vector-based semantic search engine from the ground up to power a more intuitive and accurate product discovery experience, moving beyond keyword limitations.

FastAPIPineconeSentence-TransformersPythonAWS

Impact: Dramatically improved product discovery relevance and user experience, leading to higher engagement and conversion rates.

Mission-Critical Geospatial Intelligence Platform

Contributed to a vital geospatial platform for the US Army, utilizing Django and PostGIS to process, visualize, and analyze spatial data for operational planning.

PythonDjangoPostGISPostgreSQL

Impact: Enhanced analysis, decision-making, and operational readiness for defense use cases by enabling powerful spatial data insights.

AI-Driven Marketing Automation Tools

Currently leading the development of intelligent marketing tools by orchestrating LangChain, LangGraph, and n8n to automate complex campaign workflows from start to finish.

PythonLangChainLangGraphn8nCeleryRedis

Impact: Automating campaign workflows and enabling real-time intelligent decision-making to significantly enhance customer engagement and marketing ROI.

Scalable Rental Application (Gulf Region)

Leading the development of a modern rental application, similar to Airbnb, specifically tailored for the Gulf region with a focus on user experience and regulatory compliance.

Next.jsFastAPIPythonDockerAWS (SQS, SNS, RDS)

Impact: Building a scalable, feature-rich platform designed to capture a niche market by addressing unique regional needs and enhancing user trust.

Education

Master of Science in Computer Science & Engineering

Noth South University

2008 - 2010Dhaka, Bangladesh

Thesis not completed. 30 credit out of 36 credits is done

Bachelor of Science in Physics

National University of Bangladesh

2000 - 2004Gazipur, Bangladesh

BSc honors in Physics

Diploma On Software Engineering

Shahjalal University of Science and Technology

2006 - 2007Sylhet, Bangladesh

One Year Diploma On Software Engineering

Diploma On Computer Networking

Shahjalal University of Science and Technology

2004 - 2005Sylhet, Bangladesh

One Year Diploma Training on CCNA Certification sponsorded by CISCO

Interested in Working Together?

I'm always open to discussing new opportunities and challenging projects. Let's connect and see how I can help bring your ideas to life.