I'm an Engineering Manager passionate about building high-performance teams where people can do their best work. I believe great software is first a people problem, then a technical one.

My focus areas:

• 🧭 Servant Leadership — removing blockers, creating the right environment, and enabling teams to thrive
• 🤝 Psychological Safety — healthy team culture as the foundation of everything else
• 🚀 Continuous Delivery — fast, safe, and sustainable flow from idea to production
• 📣 Sharing & Learning — I write and speak about engineering culture, delivery, and leadership

• 🏢 Working as Engineering Manager
• 🧠 Studying a Psychology degree — because the root cause of most technical problems is people problems
• 🎙️ Participating in events as a speaker and collaborator on podcasts to keep learning and sharing knowledge
• ✍️ Writing about engineering, leadership and career at javierdearcos.com
• 📚 Always exploring: Kotlin · GIS · Building effective teams · AI

🎤 Conferences, meetups and other events where I've had the chance to share ideas:

• 📅 🇪🇸 Deliver It: una historia de terror... o no — Commit Conf, 2026 · 🖥️ Slides
• 📅 🇬🇧 Navigating Communication — Celonis Meetup, 2024· 🖥️ Slides · 🎬 Video
• 📅 🇪🇸 Introducción al Backend cond NestJS — Teach[t3ch] Winter Sessions, 2023 · 🖥️ Slides
• 📅 🇪🇸 Sin límites con las pruebas técnicas — Garaje de Ideas, 2023 · 🖥️ Slides · 🎬 Video
• 📅 🇪🇸 APIs fantásticas y dónde encontrarlas — Teach[t3ch] Winter Sessions, 2022 · 🖥️ Slides · 🎬 Video
• 📅 🇬🇧 Generating code that generates code - Liferay Devcon, 2022 · 🖥️ Slides
• 📅 🇪🇸 APIs, este es el camino — Liferay User Group Meetup, 2021 · 🖥️ Slides · 🎬 Video
• 📅 🇬🇧 APIs, this is the way — Liferay /dev/24, 2021 · 🖥️ Slides · 🎬 Video
• 📅 🇬🇧 Building a SPA using Liferay's Headless APIs — Liferay Devcon, 2021 · 🖥️ Slides
• 📅 🇪🇸 Sleep Well Driven Development — Licorca Conf 2021 · 🖥️ Slides
• 📅 🇪🇸 Mutation Testing: Who watches the watchmen — Selected for the cancelled T3chfest 2020 · 🖥️ Slides
• 📅 🇪🇸 Eficiencia operativa y reduccion de costes con IOT — Monolitic IOT Workshop, 2019 · 🖥️ Slides · 🎬 Video

🎙️ Podcasts, interviews and other collaborations:

• 🎥 🇪🇸 Burnout en tech — Manfred VideoPodcast, 2025
• 🎥 🇪🇸 De Software Engineer a Manager — LambdaLoopers, 2025
• 🎧 🇪🇸 Liderazgo, comunicación y gestión — Rodobo Podcast, 2025
• 🎥 🇪🇸 Charlando con Engineering Managers — Manfred VideoPodcast, 2024
• 🎧 🇪🇸 Liderazgo técnico y humano — Hablando con Teach Leaders Podcast, 2024
• 🎧 🇬🇧 Fireside Chat con Getmimo - Mimo, 2023
• 🎥 🇪🇸 Cómo cuidar del talento técnico CON SENTIDIÑO - Manfred VideoPodcast, 2023
• 📃 🇪🇸 Despertando del País de las Maravillas - Mucho FI y poco RE newsletter de Álvaro Alegría, 2022
• 🎥 🇪🇸 ¿Cómo me enfrento a una entrevista técnica siendo junior? — Teach[t3ch], 2022

• 📝 🇪🇸 Tree shaking para la vida real — On focus, priorities, and cutting the unnecessary
• 📝 🇪🇸 El Juego del Calamar — On burnout and the games we didn't choose to play
• 📝 🇪🇸 Conmigo o contra mí — On toxic leadership and the alternative we rarely talk about

✍️ Find more posts at javierdearcos.com

🛠️ Some of the things I've built or contributed to:

• 🧑‍💻 Tech Mentor at Rviewer (Feb 2021 – Jun 2024) — Designed and created technical coding challenges at different skill levels for the Rviewer platform, used by companies to assess engineering candidates.
• 🎓 Volunteer Teacher & Mentor at Teach[T3ch] (Jun 2021 – Jul 2023) — Volunteering initiative to teach web development fundamentals to people at risk of social exclusion who wanted to enter the tech industry and find new opportunities.
• 🌐 Contributor to Liferay Portal (Jan 2020 - Aug 2022) — Contributed to the main APIs, API tooling and the Objects framework — which allows creating APIs on the fly — as the Headless API team lead.
• 🔌 Main architect and contributor to the ODA — OpenGate Device Agent (Aug 2017 - Jan 2020) — Led the implementation of the open-source IoT agent designed to make it easy to integrate devices and business data into the OpenGate IoT Platform.
• 📱 ARToolKit4Android (May 2015) — Augmented Reality library for Android based on the ARToolKit marker detection algorithm. Presented as my Final Degree Project, awarded with the highest distinction.