For me, certificates are more than just a stamp. IT excellence means responsibility. That is why I continuously update my technical knowledge and take several exams with international vendors and technology providers every year.
Each certification confirms not only expertise, but also the ability to implement complex IT projects in a precise, secure and reliable way. The overview below gives you a transparent insight into my successfully completed certifications.
Transcript ID: 1098353 —
Access code: mcpteissl
LPI-ID:LPI000352132 Verifizierungscode: m9xu42c3w7
Verfification link
Authorization code: available on request
Apple Certified Associate – Mac Integration 10.10
PDF
Apple Certified Support Professional 10.10
PDF
Apple Certified Professionals Registry
Authorization code: APPL21521
Juniper Certified Associate – E-Series, Associate (JNCIA-E)
PDF
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Verification link
Juniper verification
CertManager ID: JPR00254288
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Citrix Certified Administrator for Citrix XenApp 6
PDF -
Citrix Certified Administrator for Citrix XenServer 6
PDF -
Citrix Certified Professional – Mobility
PDF · Verification link -
Citrix Certified Professional – Networking
PDF · Verification link -
Citrix Certified Associate – Networking
PDF · Verification link
Citrix verification
Authorization code: available on request
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IBM Rational IT Sales Solution Professional v2
PDF · Verification -
IBM Software Subscription and Support Sales Professional v1
PDF -
IBM SmartCloud for Business for SaaS Solution Provider Sales Professional v1
PDF -
IBM i2 Intelligence Sales Professional v2
PDF -
IBM Certified Associate SmartCloud ControlDesk V7.5
PDF
“You can’t build a reputation on what you are going to do.”
– Henry Ford
I apply this knowledge every day in international projects – from IT security, software development, system architecture and cloud infrastructure through to complex fintech and banking solutions.
My certifications are not just awards, they are lived practice.
Excellence is created through transparency and quality.
The following documents give you a comprehensive overview of my professional expertise:
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Curriculum vitae (PDF):
cv-pdf.teissl.info -
Overview of services / proof of qualifications:
proof-en.teissl.info -
About me – full overview:
www.teissl.me -
Certification overview (PDF):
certifications.teissl.info -
Certification overview (video):
certifications-video.teissl.info
Authenticity verification via Credly
All of my certifications are additionally verified via Credly.
Credly is an internationally recognized platform for
the authenticity verification of exams, certificates and digital badges.
Each credential is stored there as a digital badge that proves successful completion of the exam and can be checked in a tamper-proof way.
You can find my verified certifications here:
Click here

