Dick Koelewijn
Software Engineer at Visma YouServe
Randstad, Netherlands
Summary
👤
Senior🎓
Top SchoolDick Koelewijn is a seasoned software engineer with over a decade of experience building and maintaining enterprise applications on IBM mainframe and HP NonStop platforms. He specializes in COBOL, SQL and JCL and is experienced with production toolchains like CICS, Cool:Gen, Endevor and SCLM, having supported mission-critical HR and payroll systems for companies such as Raet and Visma YouServe. His background includes long-term legacy modernization and operational excellence work, blending deep mainframe craftsmanship with practical release and change-management skills. Before IT he trained as a geologist, a non-obvious foundation that likely sharpened his analytical approach to complex system problems. Based in the Randstad, he brings steady, hands-on expertise for teams that rely on resilient, highly available enterprise software.
10 years of coding experience
13 years of employment as a software developer
geology, geology at Vrije Universiteit Amsterdam (VU Amsterdam)
Github Skills (1)
trend8
Programming languages (1)
Github contributions (5)
DirkKoelewijn/research-project
Dec 2018 - Jan 2019
Contributions:20 commits in 1 month
DirkKoelewijn/softwaresystems
Dec 2015 - Jan 2016
Contributions:81 pushes, 1 branch in 1 month
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