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Spilios Dimakopoulos

Technical Product Manager (AI) / AI Systems Engineer. I build AI products end to end, from requirements to production.

Now

  • Technical Product Manager (AI) at Pockee: built most of Scout, a shopping AI agent with 25 tools over live prices, promotions and purchase history; automated offer extraction and B2B reporting, saving ~3,000 hours/year
  • Building fully automated AI systems that generate, distribute and sell digital products (images, video, audio, 3D) with zero manual work
  • AthenAIos: talk by text or voice with two characters of 402 BC Athens, one speaking Attic Greek; self-hosted fine-tuned LLM, real-time 3D amphora UI (pre-launch)

Research

  • TwinLens: LLM attribution graphs predict interventions poorly (ρ 0.20); restoring two dropped derivatives lifts it to 0.53, replicated on Qwen3 · Paper · Live · Code
  • FinTwin: financial digital twin of 390+ US public companies from 15 years of SEC filings, 5,000-path stress tests in the browser, rebuilt weekly at $0 · Paper · Live · Code
  • Secured debt and small-firm exit: 13-year panel of 1.5M UK companies; secured lending cuts exit risk 39% · Revise & Resubmit, JICSB

Open source

  • 140+ merged PRs: LangChain (87, docs and Redis integration), fairlearn (28), Sentry, DSPy, Scrapy, Dify
  • Fix submitted to circuit-tracer, the attribution-graph library · PR

Before

  • Adobe Stock: $0 ad-spend generative AI pipeline, 187K+ assets, top 0.5% globally · Profile
  • AI R&D Engineer: fully offline voice AI on Raspberry Pi for a children's tutoring toy, built in 30 days

BSc Management Science & Technology, AUEB (2026) · MicroMasters, IIM Bangalore (in progress)

Portfolio · LinkedIn

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  1. fintwin fintwin Public

    Digital twin of 390+ S&P 500 companies' finances from SEC XBRL filings: system-dynamics model + Monte Carlo stress tests, rebuilt weekly for free. Live dashboard + 21-page out-of-sample research pa…

    Python 1

  2. greekbook greekbook Public

    Markdown → beautifully typeset Greek books and theses (PDF, PDF/A, EPUB) with Typst. Greek hyphenation, «“quotes”», accentless caps, citations, live editor, in-browser demo.

    Python

  3. twinlens twinlens Public

    A digital twin of GPT-2's internals that tells you how far to trust its own explanations: transcoder twin ladder, 8,064-intervention fidelity study, trust model (AUROC 0.93), live dashboard.

    Python