Looking for a job

Abhinav Singh

@abhinavsingh20

Backend engineer at ClearFeed who shipped multi-provider model selection and expanded AI support answers across five knowledge sources.

India

Message

At ClearFeed, I shipped a per-agent model-selection API across Gemini, Groq/Sambanova, and BYO key, and expanded answer coverage by integrating GitHub, Airtable, and Document360 into a Weaviate store. I also retired a redundant paid inference call after finding a legacy flag active across production collections.

At CognifyEV (Mirae Flux Labs), I built hybrid retrieval by combining semantic vector search with BM25 ranking, and converted plain-English analysis questions into code validated with Python AST visitors. I also secured API routes with tenant-scoped JWT middleware and opened FastAPI endpoints over dual Pinecone indexes.

In my Past Perfect co-founder role, I scaled a Flask and FastAPI marketplace to 1,000+ active users and 500+ monthly listings. My projects include an execution sandbox for untrusted code, an LLM-powered analytics platform, and a distributed geophysical inversion engine.

Experience

Work history, roles, and key accomplishments

Software Engineering Intern

ClearFeed

Dec 2025 - Jul 2026 (7 months)

Retired a redundant paid ML inference call by auditing a legacy flag and finding it live on 100% of all production collections. Shipped a per-agent model-selection API over Gemini, Groq/Sambanova and BYO key, rolled out by a PostgreSQL backfill.

API Development PostgreSQL NestJS Sequelize Gemini GROQ SambaNova Systems Weaviate GitHub Airtable Document360

AI Engineer Intern

CognifyEV (Mirae Flux Labs)

Sep 2025 - Nov 2025 (2 months)

Built a hybrid retriever tuned per query by fusing semantic vector search with BM25 ranking through Reciprocal Rank Fusion. Secured 43 of 54 API routes by enforcing a 5-role, 49-permission access model through JWT middleware across all tenants.

Hybrid Retrieval BM25 Reciprocal Rank Fusion Python fastAPI JWT Pinecone Gemini AST API Development

Co-founder

Past Perfect

Oct 2024 - Aug 2025 (10 months)

Scaled a decoupled Flask and FastAPI architecture to 1,000+ active users and 500+ monthly listings across universities. Served depreciation forecasts from a two-stage scikit-learn service at 100+ req/min under a 200ms median response budget.

Flask fastAPI scikit learn S3 WebP HEIC Python

Education

Degrees, certifications, and relevant coursework

Indian Institute of Technology Kharagpur

Bachelor of Science (Honours), Exploration Geophysics

Grade: 8.21/10

Activities and societies: Coursework: Programming and Data Structures, Probability and Statistics, Linear Algebra, Transform and Advanced Calculus. Self-studied: Operating Systems, Computer Networks, Database Management Systems, Object Oriented Programming, System Design, Artificial Intelligence, Agentic AI, Machine Learning, Deep Learning, Information Retrieval, FastAPI, Software Testing.

Pursuing a Bachelor of Science (Honours) in Exploration Geophysics with a micro-specialisation in Artificial Intelligence and Applications, maintaining a CGPA of 8.21/10.