Sarthak Punj
AI/ML Developer | Backend Engineer | Data Scientist
Computer Science Student • Data Science Specialist
Email: saaru1205@gmail.com
Phone: +91 9873862174
Portfolio: Sarthakpunj
Location: Gurugram, Haryana, India
LinkedIn: sarthak-punj
Professional Summary
AI/ML Developer and Backend Engineer with hands-on experience in building large-scale machine learning systems, REST APIs, and cloud-integrated solutions. Published researcher with certifications from AWS and Google Cloud. Proven success in cross-functional teams and hackathons. Open to AI/ML or software engineering roles in the UK.
Technical Skills
Python
Java
R
Node.js
Express.js
Flask
Angular
FAISS
Retrieval-Augmented Generation (RAG)
Large Language Models (LLM)
OpenAI API
Google Gemini
Hugging Face
TensorFlow
PyTorch
scikit-learn
NLP
Computer Vision
Machine Learning
Deep Learning
AWS
Google Cloud
Github
JIRA
REST APIs
HTML/CSS
n8n
Education
MSc AI for Sustainable Development
University College London (UCL), UK
Sep 2025 – Sep 2026 (Expected)
B.Tech in Computer Science (Data Science Specialisation)
Vellore Institute of Technology, India (2:1 UK equivalent)
Aug 2021 – Aug 2025 | CGPA: 8.65/10
Maxfort School Dwarka, New Delhi, India
Higher Secondary Certificate (CBSE) – 2020 | Percentage: 92%
Secondary School Certificate (CBSE) – 2018 | Percentage: 84%
Certifications
Harvard University: CS50's Introduction to Programming with Python (Sept 2025)
AWS Certified Cloud Practitioner (Oct 2023)
Google Cloud Digital Leader (Oct 2023)
Microsoft Azure AI Solutions (Sep 2024)
HackerRank Java Basic Certified
HackerRank R Basic Certified
HackerRank Problem Solving Basic
HackerRank 3-Star Java Badge
NPTEL Public Speaking (IIT Roorkee)
NPTEL Wildlife Ecology (IIT Kanpur)
Digital Design & UX (Forage)
Languages
English (Professional Working Proficiency)
Hindi (Native or Bilingual Proficiency)
Spanish (Limited Working Proficiency)
French (Elementary Proficiency)
AI/ML Developer • Published Researcher • AWS & Google Cloud Certified • 3+ Professional Internships
Professional Experience
Software Developer
Vouchagram India Pvt Ltd
Remote | Dec 2024 – June 2025
  • Developed RESTful APIs using Node.js and Express.js for a voucher issuance and redemption platform.
  • Enhanced server-side logic and request handling, improving overall application performance by 40%.
  • Collaborated with cross-functional teams to ensure robust and seamless API integration.
  • Strengthened backend development skills through practical exposure to scalable system design principles.
Technologies: Node.js, Express.js, PostgreSQL, Postman, RESTful APIs
Artificial Intelligence Intern
BiUP.ai Technologies
Remote | May 2024 – Jul 2024
  • Designed AI-powered solutions to enhance customer experience using speech technologies.
  • Integrated Speech-to-Text (STT) and Text-to-Speech (TTS) systems to enable smooth user communication.
  • Trained and fine-tuned Large Language Models (LLMs), achieving 95% accuracy in customer response handling.
  • Conducted model optimisation workshops, increasing adoption rates of AI tools by 60%.
Technologies: Python, STT/TTS APIs, Large Language Models, NLP, Transformers
Software Development Intern
CSIR-National Physical Laboratory
New Delhi, India | Aug 2023 – Dec 2023
  • Developed scientific software tools for precision in time and frequency metrology.
  • Built responsive user interfaces using Angular for research-grade measurement applications.
  • Increased precision and measurement reliability by 25% through algorithm and interface improvements.
  • Collaborated with physicists and engineers to innovate metrology solutions.
Technologies: Python, R, MATLAB, Angular, HTML, CSS, JavaScript, PostgreSQL
Content Development Intern
Piphee Learning LLP
Remote | Aug 2022 – Feb 2023
  • Produced interactive academic content for Physics curriculum under expert guidance.
  • Recognised for accuracy, clarity, and commitment in educational material development.
  • Assisted in instructional design for engaging e-learning modules.
Skills: Physics Content Creation, Academic Writing, Instructional Design
Key Projects
Advanced RAG Systems Pipeline GitHub Link
March 2025 - Present
  • Engineered advanced Retrieval-Augmented Generation (RAG) pipelines using AI APIs and vector databases.
  • Integrated OpenAI, Google Gemini, FAISS, and Hugging Face to enable efficient document retrieval and context-aware generation.
Tech: Python, OpenAI API, Gemini API, FAISS, Hugging Face, NLP, Vector Databases
CV Analyzer Tool Live Demo
November 2024
  • Developed a web application to extract and evaluate key resume insights using Natural Language Processing.
  • Built for the Solidus AI Hackathon; recognised as a top 10 finalist out of 100+ teams.
  • Parsed and analysed content from PDF and DOCX files to provide automated feedback.
Tech: Python, Flask, pdfplumber, python-docx, NLP, HTML, CSS, scikit-learn
Movie Recommendation System GitHub Link
January 2025
  • Created a personalised film recommendation engine using collaborative filtering and NLP techniques.
  • Achieved 88% user satisfaction based on similarity-based recommendations and feedback analysis.
Tech: Python, Pandas, scikit-learn, NLP, Collaborative Filtering
Food Label Reader GitHub Link
November 2024
  • Designed an application to scan and interpret nutritional data from food labels using OCR and image processing.
  • Enabled real-time extraction of key information to support dietary analysis.
Tech: Python, OCR Libraries, OpenCV, Image Processing
Publications & Research
Metaverse Miracles: Enhancing Healthcare Experiences Through Virtual Reality
International Journal of Learning and Change, Inderscience Publishers, 2024, Vol. 16, No. 4 (Published)
Revolutionizing Grading Systems: A GenAI Approach for Objective and Unbiased Evaluations
International Journal of Artificial Intelligence in Education, Springer Nature (Under Review)
Achievements & Recognition
All India Rank 2000 in VITEEE (Top 1% of 200,000+ applicants) – 2021
All India Rank 2069 in SRMJEEE (Top 1.4% of 150,000+ applicants) – 2021
All India Rank 6750 in MET (Qualified for Manipal Institute of Technology) – 2021
Published researcher in international peer-reviewed journals (Inderscience, Springer)
Top 10 Finalist – Solidus AI Hackathon, HackerEarth – 2024
Awarded Microsoft Certificate for “The Smart Shift: AI for a Better Tomorrow” – 2025
Scored 100/100 in NPTEL Wildlife Ecology course, IIT Kanpur – 2024
Served as Core Member of Ayuda NGO – Led education and healthcare initiatives for underserved communities
Leadership & Community Service
  • Team Lead at the Solidus AI Hackathon (2024): Led a three-person team to develop a CV Analyzer Tool using Flask, HTML, and CSS.
  • Core Member, Ayuda NGO (March 2022 - March 2023): Led education and healthcare initiatives for underserved communities
  • Volunteer, Food Donation Camps (July - November 2023): Organized food drives impacting families
  • Team Leader, Maha Behes Debate Competition (2017): Guided team strategy and cleared quarter-finals