RAHUL KUMAR - Backend & AI Engineer - Snakescript Solutions LLP

Summary

Results-driven Backend and AI Engineer with over three years of experience in developing robust, production-grade backend systems and AI-enabled platforms using Python, FastAPI, and AWS. Expertise in designing scalable microservices and event-driven architectures, along with proficiency in creating LLM-powered applications. Demonstrated ability to significantly reduce infrastructure costs, enhance API performance, and deliver reliable systems at scale. Committed to leveraging cutting-edge technologies to drive innovation and efficiency in software development.

Overview

3

years of professional experience

2

Certifications

Work History

Backend & AI Engineer

Snakescript Solutions LLP

11.2022 - Current

Improved API latency by approximately 500 ms by leading a company-wide migration from Flask to FastAPI with asynchronous architecture and optimized routing.
Reduced cloud infrastructure costs by approximately 50% by building AWS cost dashboards (Athena and Grafana), identifying cost-heavy ECS/Batch workloads, and migrating them to Lambda.
Accelerated LLM workflows by building an in-house graph-based workflow engine using NetworkX, increasing chat throughput by approximately 30% to 40% through deterministic task orchestration.
Designed a scalable vector knowledge base, enabling the ingestion of small to extra-large datasets with high-throughput embedding pipelines and semantic search.
Migrated the entire AI stack from the OpenAI Assistants API to the Completions API before deprecation, improving reliability, flexibility, and giving finer control over LLM orchestration.
Built multi-agent AI systems using CrewAI for deep research and multi-step query resolution.
Implemented and optimized schemas for MySQL, MongoDB, and Redis, improving query performance and index efficiency across services.

Education

Bachelor of Computer Applications - Computer Science

SSM College, GNDU University

Dinanagar, Punjab

01.2021

Skills

Languages: Python, JavaScript

Frameworks: FastAPI, Django, Flask

AI/ML: LangChain, LangGraph, CrewAI, RAG

Databases: PostgreSQL, MySQL, MongoDB, Redis, Milvus, OpenSearch, FAISS

Cloud & DevOps: AWS, Docker, GitHub Actions, CI/CD

Tools: n8n, Makecom, VAPI

Frontend (Basic): React

Certification

Google AI Essentials

Additional Knowledge

Strong foundations in DSA: Graphs, Trees, Sorting/Searching.
Experienced in scalable architecture design, index strategy, and high-concurrency systems.
Leadership experience mentoring 4+ engineers, conducting reviews, and managing delivery.

Timeline

Google AI Essentials

01-2026

Machine Learning A-Z: AI, Python

12-2024

Backend & AI Engineer

Snakescript Solutions LLP

11.2022 - Current

Bachelor of Computer Applications - Computer Science

SSM College, GNDU University