Barry Kleijn
Technical Engineer at DUVAK
Beverwijk, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolBarry Kleijn is a seasoned Technical Engineer with over 12 years of hands-on experience managing and modernizing IT environments for SMEs and larger enterprises from his base in Beverwijk. He specializes in Windows desktop and server platforms, virtualization (VMware), Microsoft 365/Exchange, and hardware lifecycle management, with a track record of migrations, monitoring and on-site support. Colleagues describe him as social, stress‑resilient and collaborative—qualities he pairs with disciplined incident handling and process improvement from helpdesk coordination to operational administration. Barry has a strong practical foundation in backup and availability tooling (VEEAM, Symantec) and a history of working across critical sites such as Tata Steel and healthcare/research environments. While he aspires to independent system‑administrator roles, he’s also keen to deepen expertise in Windows Client OS (10/11/12), combining user-facing support skills with infrastructure know‑how. Outside work he’s an avid gamer and tabletop player, which reflects his team-oriented, strategic mindset.
12 years of coding experience
5 years of employment as a software developer
70-414: Implementing an Advanced Infrastructure R270-411 Administering Windows Server 2012MBO 3, ICT, MBO 3, ICT at Nova CollegeBedrijfskundige Informatica, Bedrijfskundige Informatica at Hogeschool INHOLLAND Alkmaar70-410 Installing and Configuring Windows Server 201270-413 Designing and Implementing an Enterprise Server Infrastructure R270-412 Configuring Advanced Windows Server 2012 Services
Stackoverflow
1,212reputation
73kreached
32answers
8questions
Github Skills (22)
coffeescript7
javascript7
html6
numeric6
laravel-blade6
php6
css6
textarea6
validation6
laravel6
jquery6
responsiveness6
react5
typescript5
nodejs4
Programming languages (3)
Github contributions (5)
Barry127/sontaran
Dec 2016 - Mar 2025
Javascript validator for Array, Boolean, Number, Object, String
Contributions:31 PRs, 114 pushes, 30 branches in 8 years 3 months
arrayjavascript-validatorjavascript-validationvalidationstring
Barry127/icon-packs
Oct 2019 - Dec 2022
Contributions:88 commits, 19 PRs, 45 pushes in 3 years 2 months
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