Hello, I'mSangeeth
Senior Backend Engineer & AI Systems Architect with ~6 years of experience engineering high-throughput query engines, enterprise data platforms, and agentic systems. I build scalable systems that think.
about_me
# Background
I'm a senior backend engineer with ~6 years of experience engineering high-throughput backend query engines, petabyte-scale data platforms, and autonomous agentic AI architectures across NielsenIQ and TCS.
At NielsenIQ, I scale the Discover platform query generation engine across millions of analytical records with Java, Spring Boot, FreeMarker, and custom Snowflake UDFs, while building autonomous AI operations agents and FastMCP-based incident triage systems. Previously at TCS, I achieved a 10x performance speedup on proprietary in-memory database engines.
Currently deep in the agentic AI space — building Google OKF-based knowledge engines, Model Context Protocol (MCP) tool servers, OAuth 2.0 security proxies, and automated synthesis compilers.
# Philosophy
- Systems Thinking
Every service is part of a larger system. I design for composability, failure tolerance, and observability from day one.
- Automate Everything
If a task is repetitive, it deserves a script. I build pipelines and tools that eliminate toil and free up human creativity.
- Ship & Iterate
Pragmatism over perfection. Get it working, get it tested, ship it — then refine. Speed and quality aren't opposites.
experience.log
Senior Backend Engineer — Platform & Data
NielsenIQ (NIQ) · Bengaluru, IndiaArchitecting and scaling backend query engines and data pipelines for NIQ's flagship Discover analytics platform. Powering petabyte-scale consumer analytics across millions of records per report, and building autonomous AI operations & incident triage agents.
- Engineered Discover platform backend services using Java, Spring Boot, and FreeMarker templates, dynamically synthesizing optimized SQL queries across massive datasets
- Authored custom Snowflake UDFs (User-Defined Functions) and data transformation workflows, significantly reducing analytical compute latency and infrastructure costs
- Architected autonomous operations agents and log analysis services for real-time anomaly detection in intermediate analytics pipelines
- Developed end-to-end incident RCA (Root Cause Analysis) agents and internal OAuth 2.0 security proxy wrappers for FastMCP / Model Context Protocol tool servers
- Automated deployment pipelines on OracleLinux environments using Jenkins CI/CD, Git, and bash scripts adhering to strict 99.9% availability SLAs
Systems Engineer
Tata Consultancy Services (TCS) · Client: NielsenIQ · Chennai, IndiaHigh-performance backend engineering and data processing services for client NielsenIQ. Achieved a breakthrough 10x workflow acceleration that earned client recognition and led to a direct-hire transition to NielsenIQ.
- Engineered critical workflow optimizations leveraging client's proprietary in-memory database engine, making core applications run 10x faster than expected benchmarks
- Maintained robust data integration layers interfacing with Apache Hive, Oracle Database, and PostgreSQL using modular Python and shell scripting
- Appointed Security Deployment Lead (SDL), directing code quality governance, vulnerability remediation, and security audit readiness across deployment environments
B.Tech — Electronics & Communication Engineering
Vellore Institute of Technology (VIT) · Graduated with DistinctionCompleted industrial training internship at Bharat Heavy Electricals Limited (BHEL). Capstone project: IoT-enabled automated security and computer vision surveillance system.
# tech_stack
Core languages, platforms, and frameworks in production.
Languages
Backend & Data Platforms
AI & Agentic Systems
Infrastructure & DevOps
# certifications
./projects
cogniverse
Flagship personal project: A next-generation personal knowledge engine and interactive 3D constellation visualizer built on Google's Open Knowledge Format (OKF v0.2). Features a Python AST compiler, 3D force-directed graph visualization, and agent-optimized document structures.
resume_builder
Agentic CLI & knowledge compiler that parses Google Open Knowledge Format (OKF v0.2) corpora to synthesize tailored, 100% ATS-compliant multi-format resumes (PDF, HTML, TXT, Markdown) with automated skill-gap analysis and keyword scoring.
portfolio
Minimalist cyberpunk portfolio site. Built with Astro, vanilla CSS, and zero client JavaScript framework overhead. Features matrix rain canvas animation, terminal-style UI, CRT scanlines, and a monospace-forward design system.