I design and build scalable systems that businesses run on, from enterprise lab-data integrations to privacy-first apps on the Play Store.
sylvesterdas.com · Email · LinkedIn · Credly certifications · GitHub
10 years of shipping production software, from first Android apps in 2016 to senior engineering for a German venture group today. I own work end to end: planning, architecture, delivery and the long tail of keeping it fast and reliable.
- Enterprise architecture. Systems designed for today's requirements and tomorrow's scale.
- Cloud & integration. Connectors and services that tie complex platforms together.
- Full-stack delivery. Web, mobile and backend, so nothing gets lost between teams.
- Performance & troubleshooting. Finding the real bottleneck and fixing it.
- Technical leadership. Planning projects, guiding teams and delivering them from start to finish.
| When | Role | Impact |
|---|---|---|
| 2022 – now | Senior Software Engineer, WizardTales GmbH (Ratingen, Germany) | Engineering across a group of ventures that take on major technical challenges |
| 2020 – 2021 | Senior Software Engineer, Scitara Technologies | Planned, built and managed end-to-end MS OneDrive, MS Excel and IDBS connectors for a cloud lab-data platform serving the life sciences |
| 2018 – 2020 | Senior Software Engineer, Tacto Infomedia | Built the Pedidos delivery app (Bolivia), the CM Chashak event system for the Maharashtra CM, and Lash Delivery for HEB (Texas). 🏅 Problem Solver of the Year 2018 |
| 2017 – 2018 | Software Developer, Purelogic Labs | Built an Air Quality Index Android app and the server ingesting PM2.5 sensor readings |
| 2016 – 2017 | Full Stack Programmer, Intellinects Ventures | Built a real-time school bus tracking system for parents and administrators |
Education & credentials: B.Sc. IT, University of Mumbai · WES-evaluated degree · Developing Cloud Applications with Node.js and React (IBM / edX) · more on Credly.
Privacy-first tools published under Minifyn, live on the Play Store, the Chrome Web Store and the web:
- ScamGuard: check suspicious links, QR codes and redirect chains before opening them. Play Store · Chrome extension
- CensorFyn: 100% offline redaction of faces, passports, cards, personal text and QR codes. Play Store
- ClipFyn: inspect, crop and prepare videos on-device, with no uploads and no quality loss. Play Store
- MiniFyn: edge URL shortener with bio-links, QR codes, analytics and built-in threat protection.
I also design and build websites for small businesses, for example jaqilinmakeover.com, a bilingual booking site for a bridal makeup artist.
Next.js · React · Node.js · System Design & Architecture · DevOps · AI/ML & MLOps · Android
Open to senior engineering, architecture and consulting opportunities. Reach me at sylvesterdas.dev@gmail.com or on LinkedIn, or see the full resume at sylvesterdas.com.
About this repository
Source for sylvesterdas.com: Next.js 16 (App Router), React 19, Tailwind CSS, Framer Motion, deployed on GitHub Pages as a static export (rebuilt daily). The projects section pulls live data from the Minifyn API, with a built-in fallback.
pnpm install
echo "NEXT_PUBLIC_SITE_URL=https://www.sylvesterdas.com" > .env.local
pnpm dev # http://localhost:3000
pnpm build