Hafijur Rhaman

Where I'm headed

Hafijur brings 8+ years of progressive experience as a Python developer and ML specialist, evolving from backend engineering at Verizon and United Airlines to leading full-stack initiatives at enterprise firms like Cisco, Infosys, and Citigroup. His arc spans data engineering, NLP/computer vision, REST API design, and team leadership—combining production-grade Python with modern DevOps and cloud deployment.

Targeting

• AI Engineer
• Data Engineer
• Data Science Engineer
• Forward Deployed Engineer
• Full-Stack Python Engineer
• Integrations Consultant
• Machine Learning Engineer
• Senior Software Engineer
• Solutions Consultant

What I bring

• ›End-to-end Python ML pipelines (regression, classification, NLP, computer vision)
• ›RESTful API design and microservice architecture at scale
• ›PostgreSQL/MySQL/NoSQL schema design and optimization under high throughput
• ›Team leadership and mentorship in Agile environments
• ›Production deployment via Docker, Jenkins, Kubernetes, AWS, and CI/CD

Proof

• Citigroup Currency Exchange Dashboard
  Led Python team designing RESTful APIs and data pipelines for global banking transaction system handling international currency transfers
• Customer Retention Modeling (Infosys)
  Engineered predictive churn model using XGBoost, SVC, Random Forest; feature engineering and model selection on multi-sector client data
• Financial Data Analysis Tool (Citigroup)
  Created Pandas/NumPy statistical analysis and reporting engine for financial dataset insights and visualization
• Sentiment Analysis NLP System
  Built text classification pipeline using SVM, Random Forest, TF-IDF, NLTK to categorize opinions with high accuracy across product domains

Role fit

• Platform Engineer · Mid
• Full-Stack Backend Engineer · Senior
• Machine Learning Engineer · Senior
• Data Engineer · Senior