D. Calvo · Portfolio

Work

Case studies & secondary work

  1. RetryFi, a dunning engine owned end to end

    Solo-built Stripe failed-payment recovery SaaS: idea, architecture, production, and launch.

    2026 — present
  2. Live staking at Alkimi Labs, where mistakes cost money

    A live staking platform where real funds move: on-chain state in the UI, reliability as the feature.

    2023 — present
  3. The CrediLabs frontend, from conception to production

    The frontend of an on-chain platform, owned from conception to production inside a cross-functional team.

    2024 — 2025

Secondary

  • Alkimi DSP (v1) Frontend architecture · 2023 — 2025

    Designed the frontend architecture for the first version of the internal DSP. Internal tool: described in prose only.

  • Post-campaign analysis (Alkimi) Feature owner · 2025 — present

    Typed report contract, typed section renderer, charting, and a streaming chat interface. No public code.

  • alkimi.org Contributor · 2023 — present

    Regular contributor to the marketing site.