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Douglas Colagrosso has extensive work experience in the field of network engineering. Douglas is currently working at Carma as a Network Engineer. Prior to that, they were employed at Trustwave as an MSS Network Engineer, where they provided consultation and implemented secure network solutions. Douglas also performed LAN standardization for customer networks and ensured compliance with Payment Card Industry (PCI) standards.

Before joining Trustwave, Douglas worked as a Senior Network Engineer at AT&T, where they were responsible for the architecture, design, implementation, and support of Cisco and Juniper networks. Douglas was specifically assigned to the Xcel Energy account, which involved managing a large utility network covering 12 states and over 1100 network devices.

Douglas also gained experience as a Senior Network Engineer at IBM, where they worked on network architecture, design, implementation, and support projects for the Xcel Energy account.

Earlier in their career, they held positions as a Support/Sales Engineer at Entex/Random Access and MicroAge, where they provided technical support and sales services. Douglas began their career as a Field/Bench Engineer at SystemCare, where they performed field and bench engineering tasks.

Overall, Douglas has a wealth of experience in network engineering, with a strong track record of contributing to the architecture, implementation, and support of secure and standardized network solutions.

Douglas Colagrosso's education history is as follows:

Douglas attended Bear Creek High School from 1982 to 1985, but no specific degree or field of study is mentioned for this period.

Following high school, Douglas enrolled in Red Rocks Community College from 1985 to 1987. Douglas obtained an Associate of Applied Science degree in Digital Electronics from this institution.

In addition to their formal education, Douglas has also obtained several certifications. These include:

- Certified Information Systems Security Professional (CISSP) from the International Information Systems Security Certification Consortium, obtained in March 2014.

- Certified Information Systems Security Professional (CISSP) from (ISC)² (International Information Systems Security Certification Consortium), obtained in March 2014.

- Fortinet Network Security Expert (NSE) Level 3 from Fortinet, obtained in November 2015.

- HP Accredited Technical Associate (HP ATA) from Hewlett-Packard, obtained in February 2015.

- Palo Alto Networks Certified Network Security Engineer (PCNSE) from Palo Alto Networks, obtained in January 2016.

- Juniper Networks Certified Associate, Junos (JNCIA-Junos) from Juniper Networks, obtained in January 2017.

- CCNA (Cisco Certified Network Associate) from Cisco, obtained in November 1998.

- Cisco Certified Design Associate (CCDA) from Cisco, obtained in October 2002.

- Cisco Certified Network Professional Routing and Switching (CCNP Routing and Switching) from Cisco, obtained in July 2001.

- Cisco Certified Networking Professional -Enterprise from Cisco, obtained in July 2001.

- Cisco Certified Specialist - Enterprise Advanced Infrastructure Implementation from Cisco, obtained in July 2001.

There is mention of several other certifications, such as Cisco Certified Design Associate (CCDA), Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP), and Juniper Networks Certified Internet Associate (JNCIA), but no information regarding the dates of their acquisition is provided.