About Me
A brief introduction about me and my interest.
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Who Am I?
About Me :
Hey there, I’m Chittaranjan Sahoo, an innovative Full-Stack AI Engineer from Bhubaneswar, Odisha, specializing in designing scalable applications and developing complex data pipelines for real-world impact. Proficient in both backend and frontend development, I bring hands-on experience across diverse domains and cutting-edge technologies. I excel at integrating advanced AI technologies, multi-agent systems, and fine-tuning large language models into robust web platforms. With expertise in AI/ML model training using large datasets, I craft solutions that enhance user experience and drive operational efficiency. My approach combines technical expertise with a passion for solving complex challenges and creating meaningful impact. Let’s connect and build something remarkable together!
Skills and Expertise
Explore my expertise in AI, full-stack development, and cutting-edge technologies.
Full-Stack Development
AI & LLM Engineering
System Architecture
Cloud & DevOps
UI/UX Design
Language & Framework
Python | JavaScript | TypeScript | Node.js | React | Next.js | FastAPI | Django | Redux | LLM | NLP | Langchain | RAG | Multi-Agentic Systems | HuggingFace | Ollama | Docker | Kubernetes | AWS | MongoDB | PostgreSQL | Redis | CI/CD
Tools
Cursor | VS Code | Warp Terminal | Chrome | Git/Github | Docker | Postman | Figma | Notion | Slack
Professional Experience
Oct 2025 - Present
PayLegit
Lead AI/ML Engineer | Dubai, United Arab Emirates · Remote
- Architected a multi-tenant SaaS risk management platform serving 10,000+ concurrent merchants. Designed and managed large-scale cloud infrastructure and multi-server configurations, ensuring high availability and uptime for production systems.
- Engineered high-throughput web scrapers (Go/Python) and NLP pipelines utilizing local LLMs (Ollama, Gemma, Mistral) to automate Merchant Category Code (MCC) classification and BRAM/VIRP regulatory enforcement.
- Improved the delivery of microservices and complex AI models by building container-based CI/CD deployment pipelines. Automated the provisioning and scaling of resources to handle bulk concurrent processing.
- Built an automated financial document analysis system to extract key metrics (EBITDA) for credit limits, and developed threat intelligence modules to monitor web traffic, ad networks, and social media for fraud.
- Enforced strict platform security and isolated tenant environments. Handled core cloud network administration, including DNS management, subnetting, and secure server routing.
Go
Python
TypeScript
React
Docker
PostgreSQL
NLP Pipelines
Redis
RabbitMQ
Cloud Infrastructure
CI/CD
Sep 2025 - Jan 2026 · 5 mos
ABWCI
Full-Stack AI Developer (Contract) | Delhi, India · Remote
- Engineered clean, modern UI with responsive Next.js/React components, including advanced authentication (login/register/OTP/forgot-password), role-based dashboards (Admin/Mentor/Mentee), mega navigation, and multi-language support (31 languages).
- Led complete database refactoring: migrated from legacy MySQL to production-ready PostgreSQL (39 tables), implemented auto-migration system, connection pooling, and optimized schemas for users, members, posts, leaders, content management, and global features.
- Built scalable backend with Express.js APIs (12+ modules for auth/users/posts/content), AWS S3 file uploads, email/OTP services (Msg91), activity logging, and Docker containerization (frontend/backend/Nginx/PostgreSQL) for seamless deployments.
- Managed full-stack delivery: end-to-end testing, CI/CD pipelines, security (JWT/helmet/rate-limiting), admin panels for content/users/events, and global features like interactive country maps and support systems, delivering a robust, secure platform.
Next.js
React
Express.js
PostgreSQL
TypeScript
Docker
AWS S3
CI/CD Pipelines
JWT Security
API Development
Role-Based Access Control
i18n
March 2025 - December 2025
Joblo.ai
Full-Stack AI Engineer | Remote
- Built and maintained scalable data pipelines to scrape, filter, deduplicate and structure job and company data from platforms like LinkedIn, Naukri, Glassdoor, AmbitionBox, Crunchbase, and Indeed, handling 100k+ job listings daily with growth optimization.
- Developed end-to-end workflows for efficient collection, filtering, validation, and structuring of job and company data.
- Created a matching engine and filtering system to align job listings with candidate profiles based on skills and relevance, enhancing recommendation accuracy.
- Designed and implemented an Agentic System chatbot for personalized job search, filtering, and recommendations.
- Developed AutoApply and bulk apply features to automate job applications, significantly improving user experience and application speed.
Data Pipelines
Web Scraping
TypeScript
Python
MongoDB
LangChain
FastAPI
Agentic AI Systems
Docker
Node.js
React
January 2025 - September 2025
DiggiGrowth
Full-Stack Engineer | Remote
- Led backend development for a fintech insurance project using Node.js, building scalable and optimized APIs processing real-time data streams from Vtiger CRM with 10k+ users.
- Designed middleware database to ensure system resilience and data consistency during CRM outages, preventing application downtime.
- Developed a comprehensive web admin console that allows marketing executives to manage users, deploy insurance offers, schedule appointments, and handle service tickets.
- Managed deployment architecture and ensured smooth release of backend and admin frontend across multiple environments.
Node.js
React
PostgreSQL
Express.js
Vtiger CRM Integration
API Development
September 2023 - August 2024
Xzect Lab
Full-Stack Developer | Remote
- Worked on diverse client projects including e-Commerce and branding websites, delivering full-stack solutions tailored to client needs.
- Developed AI-powered automation workflows and integrated third-party management solutions.
React
Next.js
Node.js
Docker
LLM
AWS
Figma
June 2023 - December 2024
Web Freelancing
Full Stack Developer-Intern | Remote
- Developed multiple web applications across various client projects, developed solutions enhancing user experiences and streamlining development processes.
- Integrated AI solutions such as chatbots and RAG systems to enhance data retrieval, user engagement, and application scalability.
React
Next.js
AI Chatbots
RAG Systems