CHAITANYA KEYAL
   chaitanyakeyal@gmail.com · chaitanyakeyal.com · github.com/Chaitanya-Keyal
                        linkedin.com/in/chaitanya-keyal
                 Backend Systems | AI Engineering | Open Source

EDUCATION
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  Birla Institute of Technology and Science, Pilani
  B.E. Computer Science, M.Sc. Mathematics, Minor in Data Science · 2023 to 2028

EXPERIENCE
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  Summer of Bitcoin | Open Source Developer (May 2026 to Aug 2026)
    Summer of Bitcoin places students into open-source Bitcoin projects through
    a competitive selection: about 50 to 60 are chosen globally each year from
    roughly 5,000 applicants. Selected twice, both times to work on SeedSigner,
    an air-gapped Bitcoin signing device.
    * Now one of the top contributors to SeedSigner, involved in 80+ PRs and
    issues.
    * Automated SeedSigner’s localization (i18n) workflows to remove routine
    burden from translators, contributors, and maintainers while improving
    review quality and safety.

  OnFinance AI | AI Engineering Intern (Jun 2025 to present)
    * Built LangChain/LangGraph agents from scratch that automate circular
    analysis for various regulators like SEBI, RBI, AMFI, etc., cutting
    interpretation time by ~90% and saving 100+ hours per regulatory update.
    * Designed a search agent over 2000+ circulars and 500,000+ clauses that
    answers with citations instead of raw matches.
    * Orchestrated end-to-end pipelines spanning document parsing, action-item
    generation, evidence review, and risk analysis.
    * Migrated the backend service to PostgreSQL from MongoDB, improving query
    performance by 2 to 3x.

  Summer of Bitcoin | Open Source Developer (May 2025 to Aug 2025)
    * Extended BIP-85 support on SeedSigner to enable direct child seed loading.
    * Refactored the Python codebase for maintainability and shipped UI alerts
    warning users of high transaction fees.

  SellerSetu | Software Engineering Intern (Mar 2024 to Mar 2025)
    * Refactored the ONDC monolith into Go/Django microservices handling 10k+
    daily transactions at 2x throughput.
    * Cut API latency from ~5s to ~1s through architectural changes and resource
    management.
    * Built an agentic booking system integrating ONDC, Uber, and Rapido through
    browser automation.

VOLUNTEERING
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  cruX (Programming Club) - BITS Pilani | Software Developer (Jan 2024 to
    present)
    * Built BitsGPT, a multi-agent RAG chatbot (LangGraph + vector DB) for
    academic queries.
    * Contributed to Chronofactorem, with an Elasticsearch-powered search
    service indexing the entire course catalog and student timetables for
    sub-second retrieval.
    * Built Chrono2GCal, a Python tool auto-syncing semester timetables to
    Google Calendar.

  Central Analytical Laboratory | Undergraduate Teaching Assistant (Aug 2024 to
    present)
    * Maintained the online instrument booking portal, improving reliability for
    university researchers.

PROJECTS
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  asynchrony | Python, LangChain, SQL (Sep 2024)
    https://github.com/Chaitanya-Keyal/asynchrony
    Winner of the Synchrony Hackathon (1st place, INR 2,00,000): an autonomous
    agent that turns natural-language questions into complex SQL.
    * Engineered dynamic schema parsing so the agent adapts to changing database
    structures.
    * Accurately classifies user requests and generates syntax-valid SQL queries
    for precise personal financial data retrieval.

  satbook | TypeScript, SvelteKit, Bun, SQLite, Drizzle (Aug 2026)
    https://github.com/Chaitanya-Keyal/satbook
    A single-user Bitcoin portfolio tracker that doubles as an India VDA tax
    engine. Every income, buy, sell, spend and self-transfer goes into one
    ledger, and holdings, break-even, unrealized P/L and Schedule VDA figures
    are recomputed from it on every read.
    * Computes tax the conservative way under s.115BBH: flat 30% plus cess, cost
    of acquisition only, losses ring-fenced, network fees neither taxed nor
    deducted.
    * Autofills transaction information from a pasted on-chain txid.

SKILLS
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  Languages: Python, TypeScript, Go, C/C++, Java, SQL, Bash
  AI: LangChain, LangGraph, Vector DBs, Agentic systems, LLMs, RAG, Embeddings,
  Evals
  Backend: FastAPI, Django, PostgreSQL, MongoDB, Elasticsearch, Redis, REST
  APIs, Microservices
  Infra: Docker, AWS, Kubernetes, GitHub Actions, Linux, CI/CD, Git