Samsul H.

Software Engineer | Python, Django, FastAPI, Go, DevOps, CI/CD

Software Engineer with 12+ years of experience building scalable web applications, AI-integrated platforms, cybersecurity systems, and enterprise SaaS. Specializing in AI/LLM integration with Azure OpenAI (GPT-4), RAG pipelines, and ML-powered solutions. 100% Job Success on Upwork with $80K+ earned across 22 projects. I specialize in: AI/LLM Integration & Machine Learning: - Azure OpenAI (GPT-4), OpenAI API, text embeddings (text-embedding-3-large) - Retrieval Augmented Generation (RAG), vector search, conversational search - AI-powered contract risk analysis, clause extraction, and document intelligence - ML anomaly detection (scikit-learn GMM classifiers), federated learning for IoT security - Prompt engineering and LLM workflow orchestration Backend & API Development: - Python: Django, Django REST Framework, FastAPI, Flask, Celery, SQLAlchemy - Go: High-performance packet processors, microservices - Databases: PostgreSQL, MySQL, ElasticSearch, Oracle 12c - Messaging: RabbitMQ, MQTT, Event-Driven Architecture - API Design: REST, OpenAPI/Swagger, rate limiting, OAuth/FIDO2 authentication IoT/OT Security & Threat Intelligence: - Architected OpenCTI-based Threat Intelligence Platform with 8 custom connectors - ML-based anomaly detection classifiers (GMM, Federated Learning) for IoT traffic - Snort/YARA rule management, CVE enrichment, MITRE ATT&CK mapping - Real-time alert pipelines with Prometheus/Grafana monitoring Frontend & Mobile: - Vue.js, Angular, TypeScript - Flutter/Dart cross-platform mobile apps (Nylo framework) - Chrome Extensions, Microsoft Word Add-ins Enterprise Integrations & SaaS: - Contract Lifecycle Management (CLM) platforms - Salesforce CRM, Chargebee billing/subscriptions - SSO/Keycloak/LDAP authentication - i18n/multi-tenant platforms DevOps & Cloud: - Docker, Kubernetes (K3s), Terraform - AWS, GCP, Azure (all certified) - GitHub Actions, GitLab CI/CD, Jenkins - Nginx, Ubuntu Server Key achievements: - Built AI-powered conversational search and contract intelligence features for Juddoc CLM platform using Azure OpenAI GPT-4 and RAG - Core contributor to PeeringDB (world's leading internet infrastructure database) with 1,500+ commits - Architect of MicroIDS IoT Security Platform with ML anomaly detection and Threat Intelligence - Built luxury retail marketing SaaS with Salesforce integration at Stylab/HelloSeer (1,500+ commits) - Led modernization of oil & gas Asset Integrity Data Management System - Led a 9-person engineering team delivering 144+ government and enterprise projects Professional certifications (30+): AWS Solutions Architect, Google Cloud Developer & Architect, Azure Solutions Architect Expert, HashiCorp Terraform, Cisco DevNet, PCAP Python, and more. Master's degree in Information Management from National Taiwan University of Science and Technology (Full scholarship, GPA: 3.90). Research: Cryptography, NFC, Mobile Security. I deliver clean, well-tested, production-ready code with thorough documentation. Let's discuss your project!