I will build your crypto or finance portfolio tracker app

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Fernando Vilas

About this gig

I build privacy-first financial and crypto tracking apps: no account, no backend server, all data stored locally in your browser.


What I can build for you:

- Portfolio dashboard with live price feeds (crypto, stocks, or both)

- Custom allocation strategy (core/satellite/reserve style buckets)

- Monthly DCA/investment planner with smart rebalancing suggestions

- Staking and airdrop tracking without distorting your P&L

- CSV/JSON import and export

- Installable PWA (works offline, on mobile and desktop)


Tech stack: vanilla JavaScript/HTML/CSS, no framework lock-in unless you want React or Vue. No paid APIs required by default (CoinGecko/public price feeds), keeping your running costs at zero.


I have already built and shipped this exact type of product (MyCryptoFolio), so I know the edge cases: price API rate limits, decimal precision for crypto amounts, and local-storage data migrations.


Let's talk about your exact requirements before you order, so I can recommend the right package.

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Get to know Fernando Vilas

Fernando Vilas

Software Developer

  • FromSpain
  • Member sinceOct 2024
  • Languages

    English, Spanish
Full Stack Developer trained at 42 Málaga and CS50 Harvard. Focused on building functional tools in real environments, adaptable to different stacks and contexts. Continuous learning mindset with experience taking projects from idea to production.