Dhananjay Choudhary

/dha-nuhn-jay chowd-hury/noun
00:00:00IST

an AI Full-Stack Software Engineer with 5 years of experience building and scaling customer-facing, production-grade products.

specialized in AI-powered platforms, LLM integrations, and cloud-native architectures, with a strong focus on performance, usability, and business impact.

Everything is Connected

Experience

Perfecter.ailink
Software Engineer (AI Full Stack) | May 2024 – Present

Formerly Velocius AI Labs | Florham Park, NJ, USA (Remote)

  • Led end-to-end development of multiple AI-powered products, improving website performance by 5× and enhancing speed and responsiveness across the platform.
  • Redesigned UI/UX to deliver intuitive dashboards and document workflows, significantly improving user experience and engagement.
  • Built AI features using OpenAI, Azure Document Intelligence, OCR pipelines, and feedback loops to create intelligent document processing systems.
  • Migrated frontend deployments from Vercel to Azure and strengthened CI/CD pipelines, ensuring robust and scalable infrastructure.
  • Collaborated with product, design, DevOps, and QA teams across FinTech domains to deliver high-impact features.
  • Earned a Spot Award 🏆 for initiative, ownership, and product impact.
Upwork Freelancerlink
Full-Stack Developer | September 2023 – Present

5 completed jobs • 5.0★ rating across all projects • $900+ earned

Key Projects:

  • React.js and Tailwind Developer ($350) - Developed highly complex UI involving cross-linking multiple nested list elements with PDF highlighting. Built innovative solutions for data-heavy interfaces with clean, modern design.
  • Backend Developer ($400) - Implemented Python, FastAPI, AWS, and PostgreSQL backend for ML application. Successfully integrated Amazon Textract for document processing with deep ML expertise.
  • GCP Migration Specialist ($100) - Migrated website from Vercel to Google Cloud Platform in 3 days. Optimized autoscaling settings, reducing instance count from 6 to 1, significantly cutting costs.
  • Next.js Feature Development ($100) - Implemented critical features for ThumbnailPeak, including Channel ID search functionality with fast turnaround and frequent communication.

Client Testimonials:

  • "Went above and beyond requirements... finished additional work within 2 hours"
  • "Expert on both Google App Engine and Vercel... outstanding experience from start to finish"
  • "Demonstrated technical expertise and problem-solving skills... both functional and aesthetically pleasing"
Hexamart
Product Developer | 2023
  • Built comprehensive salon management system for managing customer appointments, invoices, employees, and salon branches.
  • Developed Invoice Management System for Customer Appointments with automated billing and payment tracking.
  • Implemented customized Service and Product Incentives for Employees to track performance and commissions.
  • Engineered Customer Invoice link sharing using AWS S3 for seamless document delivery and storage.
  • Full-stack development for business operations, streamlining salon workflows and improving operational efficiency.
Cognizant
Software Engineer | July 2021 – April 2024

Gurugram, India

  • Developed UI for full-stack ML-based release prediction system, enabling data-driven deployment decisions.
  • Built React dashboards for CI/CD Root Cause Analysis tools, improving debugging efficiency and system reliability.
  • Automated Salesforce Lightning workflows using Selenium, Java, and Python, reducing regression testing effort by 90% and significantly accelerating release cycles.
  • Remediated security vulnerabilities identified via Checkmarx scans, ensuring compliance with enterprise security standards.
  • Actively participated in GitHub PR reviews and CI/CD improvements, contributing to team best practices and code quality.

Education

Chitkara University
Bachelor of Engineering (Electronics & Communication Engineering)

Grade: 9.50 CGPA

  • Winner, MekaStorm 2.0 Hackathon: Secured 1st Position by developing a smart city waste management system using IoT and cloud technologies.
  • Vice President, I.E.T.E Society: Led student branch activities, organizing technical workshops and events for 500+ students.
  • Student Instructor & Mentor: Conducted drone workshops at STEAM School and mentored students for inter-school robotics competitions.

Certifications

Google Cloud Certified – Associate Cloud Engineer

Google Cloud Platform

Issued: September 2022 • Expires: September 2025

Google Cloud Fundamentals: Core Infrastructure

Google Cloud Platform

EF SET English Certificate – C2 Proficient

EF Standard English Test

GitHub Contributions

Tech Stack

I'm a generalist at heart who can build with anything, but here's the core stack I've spent the most time with:

Python
TypeScript
JavaScript
Go
React
Next.js (App Router)
Tailwind CSS
Shadcn UI
Framer Motion
FastAPI
Node.js
PostgreSQL
MongoDB
Redis
Docker
AWS (EC2)
Azure (Container Apps)
Google Cloud
Vercel
Nginx
Linux
Git & GitHub
LLMs (OpenAI / Ollama)
LangChain
Hugging Face
PyTorch
Pandas
Streamlit
n8n
GitHub Actions
Celery
Python
TypeScript
JavaScript
Go
React
Next.js (App Router)
Tailwind CSS
Shadcn UI
Framer Motion
FastAPI
Node.js
PostgreSQL
MongoDB
Redis
Docker
AWS (EC2)
Azure (Container Apps)
Google Cloud
Vercel
Nginx
Linux
Git & GitHub
LLMs (OpenAI / Ollama)
LangChain
Hugging Face
PyTorch
Pandas
Streamlit
n8n
GitHub Actions
Celery

Recommendations

Sibsankar Majumder

Senior Manager (Projects) at Cognizant Technology Solutions

I have worked closely with Dhananjay for more than 2 years and he never failed to impress me with his sheer technical and analytical capabilities. He is a true example of a full-stack quality engineer and comes with a good blend of test engineering and domain skillset. Dhananjay has demonstrated hands-on front-end development capabilities for an array of cloud native AI enabled solutions. What I really appreciate about Dhananjay is his openness to learn new technologies, consistency to meet client deadlines and ability to work in a collaborative environment as a team player. I am glad to get the opportunity to mentor Dhananjay and will highly recommend him for any technology focused role.

Suman Chanda

Manager at Cognizant Technology Solutions

He is a complete team member and never sighed away from uplifting his peers. Has knowledge of a full stack developer. He provides knowledge of a developer and tester with core insight on Java 8 and React js.

Upwork Client Testimonials

5.0★ Rating • 5 Completed Jobs

"Went above and beyond requirements... Great communication and fast turnaround time. Highly recommended!"

"Expert on both Google App Engine and Vercel... outstanding experience from start to finish"

"Demonstrated technical expertise and problem-solving skills... both functional and aesthetically pleasing"

Get in Touch

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your visions.

Pomodoro Timer

You've reached the end! Or have you? Before you vanish into the digital void, I've got a quick Pomodoro Timer to help you focus better on your next big thing (or just to remind you to stop doomscrolling).

25:00Focus Session