Pjotr Casteel
Senior Software Engineer (via Teamrockstars IT) at KPN
Gelderland, Netherlands
Summary
👤
Senior🎓
Top SchoolPjotr Casteel is a Senior Fullstack Software Engineer with 11 years’ experience building C# and ASP.NET Core applications and crafting user-focused front ends using Angular, TypeScript, HTML5 and modern CSS. He has led teams and delivered solutions across banks and enterprise clients (De Nederlandsche Bank, KPN, Connecthing, CAL) via Team Rockstars IT, balancing backend rigor (EF, LINQ, SQL, CosmosDB) with polished, accessible UIs. Comfortable in agile environments and DevOps toolchains, he repeatedly takes ownership from requirements to production while mentoring peers. A certified lead developer with a Master’s in Artificial Intelligence, he keeps skills current through forums and hands-on tinkering—often turning his own home into a smart-home lab to prototype integrations and UX ideas.
11 years of coding experience
8 years of employment as a software developer
Vmbo natuur & gezondheid, Vmbo natuur & gezondheid at Christelijk lyceum apeldoornGraduated Business, Graduated Business at Ohio UniversityHavo natuur & gezondheid, Havo natuur & gezondheid at ROC aventusMasters Artificial intelligence, Masters Artificial intelligence at Utrecht UniversityBachelor of Information and Communication Technology (B ICT) Informatics Informatica (Software engineering) / Hogere opleiding Software engineer, Bachelor of Information and Communication Technology (B ICT) Informatics Informatica (Software engineering) / Hogere opleiding Software engineer at HAN University of Applied Sciences
English, Dutch
Github Skills (9)
mongoose5
expressjs4
api3
javascript3
webapp3
adonisjs3
nodejs3
mongodb3
rest-api2
Programming languages (1)
Github contributions (5)
MatrTech/Utilities.Extensions
Jun 2021 - Dec 2021
Contributions:14 reviews, 3 PRs, 5 pushes in 5 months
bobbybouwmann/icapresents
Dec 2014 - Jan 2015
Contributions:42 commits, 34 PRs, 17 pushes in 1 month
application-portfolioexpressjsjavascriptexpressnodejs
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