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triasha72/README.md

Hi, I'm Triasha Sarkar

Machine Learning Engineer

I am an aerospace engineering MS graduate from Georgia Tech and a former Machine Learning Engineer at Rolls-Royce. I build ML systems that are useful beyond a notebook: the data and evaluation have to be sound, the service has to be deployable, and failures have to be visible.

I entered Georgia Tech's Aerospace Engineering PhD program, transitioned to the MS, and completed the degree in August 2026. That path sharpened my focus on applied machine learning and engineering systems.

My strongest work is in retrieval and ranking, ML evaluation, scientific ML, and deployment-focused engineering. I am targeting Machine Learning Engineer, Applied ML Engineer, and Retrieval / Evaluation Engineer roles.

Portfolio · LinkedIn · Resume · Email


Featured Projects

Retrieval · RAG evaluation · Agentic workflows · ML systems

Built an evaluation-first technical knowledge system over 3,233 citation-preserving NASA report chunks. It combines hybrid retrieval, fusion, reranking, pgvector search, evidence checks, controlled citations, bounded agents, and containerized FastAPI services.

Recommendation · Real-time search · Distributed systems

Built a leakage-aware news recommender with chronological evaluation, then added a separate real-time path so new articles could become searchable without tying event delivery to the model server. Go, Kafka, PostgreSQL, and FastAPI now handle keyed ingestion, idempotent writes, freshness-aware ranking, dead letters, and consumer recovery; the verified Docker run accepted all 500 events and reached a 79 ms sampled index-freshness p95.

Scientific ML · Uncertainty · On-device inference

Built an aircraft-design surrogate benchmark that connects uncertainty estimates and constrained optimization to deployment. Exported and tested models across ONNX, Core ML, and Qualcomm QNN, then added an installable iPhone browser app; the QNN deployment retained 0.997 mean held-out R² on Snapdragon hardware.

More technical work

  • AeroSynth-Eval — protected multimodal evaluation with deterministic assets, provenance checks, and retained failures.
  • Equity Backtest — expanding-window signal evaluation with transaction costs and a complete record of tested specifications.
  • Atlanta Mobility Resilience Digital Twin — OSMnx and NetworkX simulation of how road disruptions change travel time, access, and equity across Atlanta.
  • Surrogate Model Learning — comparison of Gaussian process, response-surface, and radial-basis models, with emphasis on where each method fails.

Experience

Georgia Tech Aerospace Systems Design Laboratory

Graduate Research Assistant under Prof. Dimitri Mavris · May 2025 – Aug 2026

  • Audited a rocket-motor simulation study that was failing without errors or output, built a leakage-safe classifier with 96.8% accuracy across 15,120 simulations, and traced the failures to an uncapped convergence loop.
  • Worked on source-aware retrieval and evaluation for the Delta Air Lines-sponsored HERO safety program.
  • Built surrogate, uncertainty, demand, and life-cycle models for GREEN TEA and Project EAGLE; the GREEN TEA model remains in sponsor use.

Rolls-Royce

Machine Learning Engineer · Jul 2023 – Apr 2025

  • Built Python workflows for diagnostics, anomaly detection, predictive maintenance, and mixed-frequency aircraft-engine time series.
  • Turned certification requirements into reproducible analyses and model checks, then reviewed the findings with lifecycle engineers.

Rolls-Royce DataLabs

Data Science Intern · May 2021 – Jul 2021

  • Cleaned aircraft-engine sensor data, designed features, compared predictive and anomaly-detection models, and summarized recurring failure patterns for engineering review.

Technical Toolkit

Languages and data: Python, Go, SQL, C++, MATLAB, pandas, NumPy, SciPy, DuckDB, PostgreSQL/pgvector

ML and GenAI: PyTorch, scikit-learn, Hugging Face Transformers, PEFT/LoRA, LangGraph, RAG, BM25, dense retrieval, reranking, recommender systems, uncertainty estimation

ML systems: FastAPI, Kafka, Docker/Compose, Kubernetes, GitHub Actions, CI/CD, Prometheus, OpenTelemetry, ONNX, Core ML, Qualcomm QNN

Engineering practice: leakage-aware evaluation, protected test design, bootstrap comparison, failure analysis, physics checks, reproducible experiments

Pinned Loading

  1. NewsLens NewsLens Public

    Leakage-aware news recommendation research system with reproducible evaluation, DuckDB analytics, artifact-backed FastAPI inference, and containerized deployment.

    Python 1

  2. Portfolio Portfolio Public

    HTML

  3. AeroRAG-X AeroRAG-X Public

    Production-oriented aerospace RAG platform using NASA technical reports, hybrid retrieval, reranking, grounded generation, FastAPI, and Docker.

    Python 1

  4. EdgeGenBench EdgeGenBench Public

    Uncertainty-aware surrogate modeling and edge-ready inference for hybrid-electric and hydrogen regional aircraft design.

    Python 1

  5. Equity-Backtest Equity-Backtest Public

    Cross-sectional equity signal backtest with expanding-window validation, transaction costs, and a committed log of every variant tested

    Python

  6. AeroSynth-Eval AeroSynth-Eval Public

    A Human-Aligned VLM Autograder for Synthetic Aerospace Inspection Imagery

    Python 1