Sahil Tyagi

Backend Developer | AI/ML Integration Specialist

| LinkedIn | GitHub

About

Highly accomplished Backend Developer with a Master's degree from IIT and 2+ years of experience in full-stack development, specializing in scalable systems, AI/ML integration, and robust API design. Proven ability to optimize performance by up to 60%, enhance system security by 100%, and streamline operations, reducing manual intervention by 70%. Possesses strong problem-solving skills with 500+ DSA problems completed and active open-source contributions, positioning for high-impact roles in advanced backend engineering.

Work Experience

Backend Developer Intern

Edify by Winuall

Jan 2025 - Mar 2025

Bangalore, Karnataka, IN

Contributed to the development of scalable, high-concurrency e-commerce backend systems, focusing on API optimization, data integrity, and seamless third-party integrations.

  • Contributed to a high-concurrency asset and e-commerce backend, serving 10,000+ users and enabling modular service separation for microservices adoption.
  • Developed production-ready, low-latency REST APIs using Node.js and MongoDB, implementing Redis caching to reduce database queries by 60% and improve API latency by 40%.
  • Enhanced secure user management and bulk operations, preventing accidental deletions and maintaining 100% data integrity.
  • Successfully integrated over 10 external applications via OAuth, significantly streamlining workflows and boosting overall system performance.

Backend Developer

Edify by Winuall

Apr 2025 - Jul 2024

Bangalore, Karnataka, IN

Spearheaded the development and optimization of critical backend systems, enhancing traceability, search performance, and operational efficiency through advanced engineering solutions.

  • Engineered a production-grade log system, capturing 100% of asset actions to enable full traceability and audit-compliant backend insights.
  • Architected and deployed a CI/CD-integrated Elasticsearch search pipeline, boosting query performance and user engagement by 60% across categorized assets.
  • Implemented a Dockerized support workflow compatible with microservices, improving SLA adherence by 50% and reducing resolution delays by 40% on AWS EC2.
  • Automated the entire invoicing lifecycle, reducing billing errors by 90% and accelerating payments by 60%.
  • Deployed AI-driven agents to automate Tier-1 queries, cutting manual intervention by 70% and enhancing observability with Grafana/Loki dashboards.

Education

Computer Engineering

Indian Institute of Technology (IIT)

GPA: 7.8

Jul 2022 - Jul 2024

Guwahati, Assam, IN

Computer Engineering

University Institute of Engineering and Technology

CPI: 6.85

Jul 2017 - Jul 2021

Kanpur, Uttar Pradesh, IN

Projects

Therapist AI

Sep 2023 - Mar 2024

Developed a full-stack therapy chatbot platform using MERN stack and RAG-powered LLMs, aimed at democratizing access to mental health support in Tier-2/3 cities across India, onboarding 100+ users in the first month.

CPU Simulation

Jan 2023 - Jun 2023

Built a C++ simulation library for 5 key Operating System scheduling algorithms (FCFS, RR, SPN, SRT, HRRN) to evaluate performance metrics for in-depth analysis.

Languages

English , Hindi

Skills

Languages

  • JavaScript
  • TypeScript
  • Python
  • C++
  • Java

Frameworks

  • Node.js
  • Express.js
  • React.js
  • Tailwind CSS

Backend Skills

  • REST APIs
  • API Rate Limiting
  • JWT Auth
  • Caching
  • OAuth2
  • Webhooks

Databases

  • MongoDB
  • MySQL
  • Redis
  • Elasticsearch

DevOps & Tools

  • Git
  • GitHub
  • Docker
  • Kubernetes
  • Postman

Cloud Platforms

  • AWS (EC2, S3)
  • GCP

Concepts

  • System Design
  • SOLID Principles
  • CI/CD
  • Design Patterns
  • Microservices