J Liu
Software Engineer (Java Kotlin Backend, Payment) at ING
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJ Liu is a pragmatic backend-focused software engineer with 9 years of experience, currently building iDEAL acquiring payment systems at ING using Java/Kotlin, Spring, and cloud-native tooling (Docker/Kubernetes, Azure DevOps). His background spans full-stack web apps, NLP/ML, and low-level compiler backends, giving him a rare blend of systems thinking from compilers to production services. He has shipped microservices, reactive systems, and frontend components, and has practical experience with Kafka, Oracle, Grafana/Prometheus and CI/CD pipelines. Curious by nature, he gravitates to unfamiliar domains and quickly turns that curiosity into production-ready solutions—evident from projects ranging from DSP compiler toolchains to relation-extraction services and a genealogy web app. Based in Amsterdam, he brings disciplined engineering and cross-domain fluency to payment and backend platforms.
10 years of coding experience
3 years of employment as a software developer
Master of Science - MS, Computer Science (joint degree of VU & UvA), Master of Science - MS, Computer Science (joint degree of VU & UvA) at Vrije Universiteit AmsterdamBachelor of Engineering - BE, Telecommunication Engineering, Bachelor of Engineering - BE, Telecommunication Engineering at Southwest Jiaotong UniversityMaster of Science - MS, Computer Science (joint degree of VU & UvA), Master of Science - MS, Computer Science (joint degree of VU & UvA) at Universiteit van Amsterdam
English, Chinese
Github Skills (7)
parser3
genealogy2
python-modules2
gedcom2
python2
ancestry2
parsing1
Programming languages (3)
Github contributions (5)
ljm0/WebDataProcess-EntityLink
Nov 2018 - Nov 2020
Contributions:23 commits, 32 pushes in 2 years
ljm0/ljm0.github.io
Aug 2019 - Aug 2025
Contributions:66 pushes, 1 branch in 6 years 1 month
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