Hiring
Senior Frontend Engineer in Amsterdam
React, React Native and TypeScript at Bitvavo since 2022, after frontend roles at Everon × EVBox, Mercado Libre and Nisum. Eighteen years of shipping for the web across three countries.
How I work
Ownership, end to end
From a loose idea to a shipped, measured feature. I have owned that whole path inside large teams and as a founder, and I am comfortable with the ambiguity in between.
Performance and accessibility by default
Core Web Vitals, keyboard-first interactions and sensible bundles are part of done, not a polish phase. This page is built that way.
Design-literate engineering
I came up through graphic design, portals and frontend, so I can take a Figma file to pixel fidelity or design the missing states myself.
Raising the bar around me
I have led remote teams, trained developers and taught web programming at university. Reviews, pairing and clear writing are part of how I ship.
Selected work
Products shipped end to end.
Bitvavo
Web and mobile frontend for one of Europe’s largest crypto exchanges, Amsterdam.
- React
- React Native
- TypeScript
- Embrace
- Amplitude
- Firebase
- GTM
- WalletConnect
- Skia
- WebSockets
OpenConsent
GDPR-compliant cookie consent for React and Next.js with Google Consent Mode v2 built in, installed through the shadcn/ui registry.
- Next.js
- React
- TypeScript
- shadcn/ui
- Supabase
BitPaper
A fully offline CLI that generates paper wallets for Bitcoin, Ethereum, Solana and Chainlink, with QR codes, BIP39/BIP44 derivation and a plugin architecture.
- TypeScript
- Node.js
- Commander.js
- bitcoinjs
- ethers
Airtifact
The open-source deployment layer and artifact preview hub for AI coding agents. Drop a ZIP for a shareable link, or let agents deploy live previews via MCP.
- Next.js
- MCP
- Vercel Blob
yausell.com
This site: a 5.8 MB self-extracting page rebuilt as a static Astro site that scores 100 on every Lighthouse category, with CI that keeps it there.
- Astro
- TypeScript
- CSS
- WebGL
- GitHub Actions
- Vercel
Experience
- 2025 — NowInbu · Auxel Labs Founder
- 2022 — NowBitvavo Senior Software Engineer
- 2019 — 2022Everon × EVBox Senior Software Engineer · Frontend
- 2018 — 2019Mercado Libre Software Engineer
- 2016 — 2018Nisum Latam Senior Frontend Developer
- 2015 — 2016Independent Software Engineer
- 2010 — 2015Universidad de las Ciencias Informáticas University Professor
- 2010 — 2014Centro de Consultoría y Desarrollo de Soluciones SOA Senior Web Developer
- 2008 — 2010Video Game Development Area, UCI Project Lead
Skills
The toolkit, daily.
What I reach for on a senior frontend team, roughly in order of daily use.
- ReactEvidence: OpenConsentInbuBitvavo
- Next.jsEvidence: OpenConsentAirtifactInbu
- React NativeEvidence: Bitvavo
- TypeScriptEvidence: BitPaperOpenConsentThis site
- Node.jsEvidence: BitPaper CLIAirtifact MCP server
- UI DesignEvidence: This site
- TailwindEvidence: OpenConsentAirtifact
- UI architectureEvidence: This siteOpenConsent components
- shadcn/uiEvidence: OpenConsentInbu
- Web3Evidence: BitPaperBitvavo
- SupabaseEvidence: InbuOpenConsent migrations
- Framer MotionEvidence: OpenConsent banner
- Testing · VitestEvidence: OpenConsent testsThis site's CI
- PerformanceEvidence: This site
- AccessibilityEvidence: This site
Kind words
Great team player with strong leadership skills, always giving 100% of him and encouraging others to do the same in order to deliver value to our customers and achieve the best possible product. Kudos to Yausell 🙌I have been worked with Yausell since more then two years , I Really enjoyed every moment we worked to solve some technical challenges which we faced And He had exceptional problem solving approach which gives the more slim solutions to the front end challenges, He build the team handling skills with in short time which includes verbal and vocal. I wish him all the very best for this future endeavours.Es un excelente profesional con el que he tenido el placer de poder trabajar en algunos proyectos. Tiene abundantes conocimientos en los temas relacionados con el desarrollo Web, diseño gráfico, desarrollo en Java y en los temas relacionados con Integración y Arquitecturas Orientadas a Servicios haciendo uso de herramientas Open Source.He is an excellent professional with whom I have had the pleasure of working on several projects. He has extensive knowledge of web development, graphic design, Java development, and integration and service-oriented architectures using open source tools.Yausell es un excelente desarrollador en sentido general, se destaca aún más en el desarrollo front-end por sus capacidades combinadas de programación y diseño gráfico, es muy responsable y comprometido con su trabajo.Yausell is an excellent developer overall, and he stands out even more in front-end development thanks to his combined programming and graphic design skills. He is very responsible and committed to his work.Tuve la oportunidad de trabajar con Yausell en el Departamento de Soluciones SOA del Centro CDAE en la UCI un poco más de 2 años. Demostró ser un profesional capaz, talentoso, con grandes habilidades en el diseño y maquetación (todas las cosas relacionadas con la presentación pasaban por sus manos), comprometido y de gran calidad humana. Técnicamente está muy bien preparado.I had the opportunity to work with Yausell in the SOA Solutions Department of the CDAE Center at UCI for a little over 2 years. He proved to be a capable, talented professional with great skills in design and layout (everything related to presentation went through his hands), committed and of great human quality. Technically, he is very well prepared.J’ai travaillé avec Yausell pendant presque 6 ans, dans lesquels il a fait preuve de compétences vastes par rapport au dessin et au développement de logiciels de plusieurs catégories. Aussi, je peux le recommander particulièrement pour travailler dans des équipes multidisciplinaires, il est communicatif et collaboratif.I worked with Yausell for almost 6 years, during which he demonstrated broad skills in the design and development of software of many kinds. I can especially recommend him for working in multidisciplinary teams; he is communicative and collaborative.Contact
Let’s build something considered.
For senior frontend roles, product collaborations, or to compare notes on building things next to a day job, email is the fastest way to reach me.