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Rajiv Mahato

Rajiv Mahato

Data Engineer

Remote
70
Profile Score

About

No bio added yet

Skills & Expertise (30)

GCP Intermediate
8.1/10
1
Years Exp
BigQuery Intermediate
7.9/10
1
Years Exp
SQL Intermediate
7.8/10
1
Years Exp
Docker Intermediate
7.4/10
1
Years Exp
Python Intermediate
7.3/10
1
Years Exp
Random Forest MySql SMOTE OpenTelemetry React Node.js Express Flask FastAPI Tailwind MongoDb Postgresql ML Power Query Power BI Gemini Vertex AI DBT Git Cloud Run Cloud Composer CSS HTML Typescript JavaScript

Work Experience

Data Engineer

Ollion

Sep 2025 - Present

Architected a serverless metadata-driven pipeline on GCP using Cloud Run and Cloud Workflows to automate incremental ingestion from REST APIs into BigQuery. Implemented Medallion Architecture (Bronze, Silver, Gold) using SQL Stored Procedures to perform data cleaning, validation, and multi-layer transformations. Engineered a metadata tracking system for incremental processing and implemented BigQuery table partitioning, slashing overall query and compute costs by 80%. Containerized the ingestion service using Docker and automated the end-to-end orchestration via Cloud Composer, achieving a scalable data lifecycle. Developed a modular multi-agent system via Google ADK for NL2SQL transformation, strategically routing tasks across different LLM models to optimize API costs. Designed a Hub-and-Spoke architecture with a Root Orchestrator delegating to domain-specific sub-agents, boosting overall query accuracy to 95%. Integrated Self-Correction Loops and Regex security guardrails to automatically resolve SQL syntax errors from logs, increasing successful execution rates by 40%. Deployed on Vertex AI Agent Engine with full OpenTelemetry instrumentation, enabling real-time observability and performance monitoring.

Full Stack Web Development Intern

Skill Guru Foundation

Feb 2025 - Jul 2025

Developed a mobile-first, full-stack course platform using React, TypeScript, Node.js, and MySQL, implementing secure REST APIs and Cloudinary integration for media uploads. Engineered high-impact modules including a mentor-matching system and an automated student lifecycle pipeline with progress tracking, digital certification, and a project showcase gallery.

Education

Master of Computer Applications - Veermata Jijabai Technological Institute (VJTI)

2023 - 2025 · Afghanistan

Master of Commerce - Ramniranjan Jhunjhunwala College

2022 - 2023 · Afghanistan

Bachelor of Commerce - S.K. Somaiya College

2018 - 2021 · Afghanistan

Certifications

No certifications added yet

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 0/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 5/15
💰 Rate 0/5
🏆 Certs 0/5
Verified 5/5
Total Score 70/100

Profile Overview

Member sinceApr 2026

Skills (30)

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