ML and LLM systems built to hold up under scrutiny.

AI/ML engineer building recommenders, RAG, agents, MLOps, and causal inference systems. Each project ships with tests, benchmarks, and documented limits.

Portrait of Abhinav Harbola

I write the evaluation before the model.

I build ML and LLM systems end to end: retrieval, agents, recommenders, causal inference, and the MLOps around them. I report what the measurements show, including where the system falls short. Everything here runs on free-tier infrastructure.

Focus
LLM systems, evaluation, MLOps
Education
B.Tech CSE, Lovely Professional University
Location
Varanasi, India
Availability
Open to remote or relocation

Selected projects

Three of nine case studies. Each one lists what its evidence does not show.

GenAI / RAG

Kubernetes Gated RAG

Kubernetes Q&A that answers only from the docs you ingest. A gate guards every stage, and infrastructure failures return an uncached outage message, not a guess.

LangGraphQdrantFlashRankGroqRagas
Kubernetes Gated RAG project diagram

AI Agents / MCP

IssueOps MCP

A GitHub issue triage system where the model can only propose. Nothing reaches GitHub until a person approves it, and every step is audit-logged.

MCPPostgresStreamlitGroq
IssueOps MCP project diagram

MLOps

Continuous Credit Risk Governance Pipeline

A credit-risk model that runs its own lifecycle: it detects drift, retrains a challenger, gates promotion with a bootstrap test, and rolls back if the old model wins.

MLflowEvidentlyDVCGitHub ActionsPostgres
Continuous Credit Risk Governance Pipeline project diagram

Skills

Modeling, LLM systems, and the production tooling around them.

Languages

PythonSQLBashC++

Data & Applications

FastAPIStreamlitPostgres (Neon)SupabaseSQLitepandasNumPyTableauPlotly

Statistics & Causal Inference

Power AnalysisWelch's t-testBenjamini-HochbergRosenbaum BoundsIPW / AIPWCATE (T-learner)QiniMcNemar / Bootstrap CIstatsmodelsscikit-uplift

GenAI & Agents

RAGLangGraphMulti-Agent OrchestrationMCP (stdio server)QdrantFAISSFlashRankRagasNeMoGuardGroqNVIDIA NIMGemini API

MLOps & Production

MLflowDVCEvidentlyDrift Detection (K-S)Model Governance & RollbackGitHub ActionsCI/CDLogfireDockerAWS

Machine Learning

XGBoostLightGBMscikit-learnPyTorchProphetSARIMAIsolation ForestALS / BPRTwo-Tower & SASRecSHAPOptuna

Bold marks the tools used most across the projects.

Experience & education

Where the work happened, and the record behind it.

Experience

Data Science Intern

Coding Blocks

Jun 2024 - Aug 2024

  • Built an XGBoost customer-churn model and tuned it with GridSearchCV, landing 9 percent above the baseline accuracy the team had been working from.
  • Scraped and cleaned over 5,000 competitor reviews into a structured dataset the product side could query directly.
  • Covered the full loop: ingestion, feature work, model selection, evaluation, and handover.

Recognition

  • Dean's List, top 10 percent of students, 2023, 2024, and 2025
  • 5-Star Badge in Python and C++ on HackerRank

Education

B.Tech, Computer Science and Engineering

Lovely Professional University, Punjab, India

CGPA 8.23 / 10.0

Certifications

  • SAP Certified, Data Analyst, SAP Analytics CloudCredly, Apr 2026
  • IBM DevOps & Software Engineering Professional CertificateCoursera, Nov 2025
  • NPTEL Cloud ComputingIIT Kharagpur, Oct 2024
  • Google IT Automation with PythonCoursera, Dec 2023

Open to AI/ML engineering & Data Science roles.

If you are building something that needs a system tested as hard as it is trained, I would like to hear about it.