Robert Van Alphen
Software Engineer Kotlin - Freelance at Booking.com
Utrecht, Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolRobert Van Alphen is a pragmatic, communicative software engineer with 11 years of experience building and migrating backend systems, currently freelancing as a Kotlin engineer at Booking.com. He combines full-stack Java/Kotlin expertise with hands-on experience in Golang, cloud migrations (including a zero-downtime PostgreSQL-to-Spanner project at bol), and designing custom search solutions to replace Elasticsearch. Comfortable across DevOps, gRPC/protobuf, Kubernetes on GCP and legacy JVM stacks, he’s delivered features for high-traffic consumer apps and mitigated bot-driven load on critical systems. As a long-term freelancer and former team coach, he balances independent delivery with mentorship and hiring involvement. Based in Utrecht, he brings a practical, results-oriented mindset and a knack for turning risky, data-heavy migrations into repeatable, low-impact processes.
11 years of coding experience
8 years of employment as a software developer
vwo, Natuur en Gezondheid, vwo, Natuur en Gezondheid at Berlage lyceum amsterdamBachelor of Science (BSc), Informatica (Software engineering) / Hogere opleiding Software engineer, Bachelor of Science (BSc), Informatica (Software engineering) / Hogere opleiding Software engineer at Utrecht University
Dutch, English
Github Skills (22)
container10
docker10
ecosystem10
moby10
photoswipe10
go10
assemble10
golang10
java7
cropperjs7
lightbox7
facade7
monitoring6
angular5
microservices5
Programming languages (3)
Github contributions (5)
robertalpha/go-video-preview-ffmpeg-wrapper
Jan 2022 - Apr 2024
Contributions:1 release, 4 pushes, 2 branches in 2 years 3 months
robertalpha/vertx-mandelbrot
Mar 2016 - Nov 2018
Contributions:3 pushes, 2 branches in 2 years 9 months
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