Onno Postmus Email & Phone Number

Onno Postmus

Senior manager OSS-NMS and ISP at InfoSys Ltd. | The Randstad, Netherlands

Onno Postmus Socials
About Onno Postmus

Onno Postmus currently serves as the Senior Manager for OSS-NMS and ISP at Infosys Ltd., where he plays a pivotal role in overseeing the design, deployment, and management of complex network management systems for leading telecommunications clients such as Liberty Global. In this capacity, Onno leads multidisciplinary teams responsible for delivering high-quality, reliable OSS solutions that support the seamless operation of broadband, cable, and internet services across diverse markets. His expertise spans a broad spectrum of network management tools and platforms, including CA Spectrum, CA eHealth, Lucent ITM-SC, Tellabs TeMIP, and Cisco CTM, enabling him to architect robust NMS/OSS architectures tailored to client needs.

With a strong background in telecommunications infrastructure, Onno specializes in integrating SDH, IP routing, and switching technologies to optimize network performance and ensure service continuity. His proficiency in UNIX/Linux system administration and shell scripting allows him to automate workflows, streamline operations, and enhance system reliability. His deep understanding of network protocols and systems administration ensures efficient troubleshooting and proactive network monitoring, critical for maintaining high availability in large-scale ISP environments.

At Infosys, Onno’s leadership extends beyond technical expertise; he is instrumental in driving strategic initiatives that improve network visibility, automate fault management, and enhance customer experience. His hands-on approach and industry knowledge enable him to collaborate effectively with cross-functional teams, ensuring that the network infrastructure aligns with evolving business demands and technological advancements. Through his work, Onno continues to contribute significantly to the telecommunications sector, leveraging his extensive experience to deliver innovative solutions that support the digital transformation journeys of his clients.

Onno Postmus Work
1 experience icon

Senior manager OSS-NMS and ISP at InfoSys Ltd. in February 2024 to Present

2 experience icon

Manager SMA at InfoSys Ltd. in April 2020 to January 2024

3 experience icon

Team Lead NMS at Liberty Global Operations B.V. in January 2015 to March 2020

See more

Onno Postmus Education

Hogeschool van Utrecht, no, September 1993 to September 1994

Onno Postmus Skills

SDH

IP

Solaris

See more

About Onno Postmus's Current Company
Frequently Asked Questions about Onno Postmus

What is Onno Postmus email address?

Email Onno Postmus at [email protected] and [email protected]. This email is the most updated Onno Postmus's email found in 2026.

How to contact Onno Postmus?

To contact Onno Postmus send an email to [email protected] or [email protected]. (updated on March 06, 2025)

What company does Onno Postmus work for?

Onno Postmus works for InfoSys Ltd.

What is Onno Postmus's role at InfoSys Ltd.?

Onno Postmus is Senior manager OSS-NMS and ISP

What is Onno Postmus's Phone Number?

Onno Postmus's phone (**) *** *** 131

What industry does Onno Postmus work in?

Onno Postmus works in the Telecommunications industry.

Onno Postmus Email Addresses

Email Onno Postmus at [email protected] and [email protected]. This email is the most updated Onno Postmus's email found in 2026.

Onno Postmus Phone Numbers

Find more people like Onno

Get a free list of similar prospects, filtered by title, company, or industry.

Build your Prospect List
Engage candidates 10x faster

Enjoy unlimited access and discover candidates outside of LinkedIn

Trusted by 1.4M users from 76% of Fortune 500 companies

Microsoft Tenstorrent Merck Rackspace WarnerMedia Societe Generale Yelp Google

The most accurate data ever

CCPA Compliant
GDPR Compliant
150M Personal Emails
200M Work Emails
100M Direct Dials
250M Professional Profiles
40M Company Profiles

Find anyone, anywhere
with ContactOut today

Making remote or global hires? Connecting
with key decision-makers? We can help.

  • 40 emails / month
  • 3 phone numbers / month
  • Works on standard LinkedIn only
  • Work emails, personal emails,
    mobile numbers
* 1 user per company limit

No credit card required

Try ContactOut for Free