Daniel Milanowski
Lake Hiawatha,NJ
Summary
Ambitious and results-driven network engineer with over 10 years of experience in architecting, securing, and troubleshooting multi-vendor (Cisco, Extreme, Juniper, Palo Alto) enterprise networks across physical, wireless, and cloud-based environments. Proven leader in designing high-availability infrastructures, executing data center and cloud migrations, and implementing zero trust security to enhance performance, reduce costs, and mitigate risk.
Overview
14
14
years of professional experience
1
1
Certification
Work History
Network Infrastructure Engineer
ConvergeOne (C1)
Denville, USA
08.2018 - 09.2025
- Lead network engineer architecture, design, security, and support of a large (3000+ user) managed services provider (MSP) multi-vendor enterprise network infrastructure consisting of Cisco network platforms.
- Key engineer involved with 5 company acquisitions spanning over 50+ network offices and 10 datacenters, responsible for consolidation and re-architecture of the environment. Overall, reducing operational costs of upwards of $10M.
- Architected, designed and configured 4 new on premises data centers and offices utilizing Cisco Nexus (9K,7K,5K series) switching, Cisco ASR 1000 series and Cisco FTD4400 series firewalls to provide high availability, circuit resiliency and zero trust north/south + east/west traffic segmentation.
- Lead engineer responsible for architecting, designing and migrating two physical data centers over to Microsoft Azure for disaster recovery services using a combination of native Azure services and along with Cisco (8000v, CSR1000, and FTDv) instances, resulting in $1.5M savings in annual operating expenses.
- Converted 30+ office locations over to Meraki SD-WAN for improved zero trust security and high availability, resulting in an upfront savings of roughly $2M and $75K monthly of reoccurring circuit expenses.
- Redesigned and upgraded wireless infrastructure with Cisco Meraki MR series access points to improve coverage, reliability, and performance across 30+ sites in high and medium RF density zones.
- Supported and designed several branch and campus networks consisting of Cisco (Catalyst 6800, 3850, 9300, 2960X) series switches, Cisco (FTD 1K + ASA 5525X + Meraki MX95) firewalls and (ISR 4000) WAN routers.
- Accountable for network automation scripting, spanning the hybrid infrastructure, significantly increasing productivity and reliability of upwards of 50%, in areas of disaster recover, maintenance and provisioning.
- Responsible for tier 3 high priority support tickets, network software upgrades, vulnerability remediation, and capacity planning of the entire environment.
Network Solutions Engineer
Strategic Products & Services (Acquired by ConvergeOne)
Parsippany, USA
09.2013 - 08.2018
- A key shared network resource of a (1000+ user) managed service provider (MSP), supporting internal IT environment and over 40+ clients across diverse platforms (Extreme, Juniper, Palo Alto, Cisco) in mission-critical settings.
- Key individual tasked for the architecture and design of primary IT datacenter utilizing diverse vendor hardware, consisting of (Juniper, Extreme, and Palo Alto), successfully achieving a 99.9% uptime model.
- Architected, designed, and implemented a new multi-vendor disaster recovery data center utilizing Extreme networks switching using X460 series for core/access, Juniper MX series edge routers, and Palo Alto 3050 firewalls.
- Provisioned and supported customer connectivity within our MSP data centers providing robust connectivity options, security, and quality of service (QOS) implementations.
- Refreshed entire branch environment consisting of 25 offices over to Palo Alto PA 500 firewalls and a combination of Extreme X440 and X460 standalone and switch stack solutions.
- Involved integration of two newly acquired Cisco MSPs, resulting as a key engineer tasked with supporting and 4 additional customer facing Cisco-based data centers.
- Support of internal and customer facing Cisco and Juniper VPLS, MPLS, and VPN WAN technologies.
Network Design Engineer
MasTech Network Solutions (Formally Dynis LLC)
Columbia, USA
04.2011 - 09.2013
- An engineer involved with several Cisco network projects in the ISP and US government sectors.
- Designed and implemented a resilient 600+ user military campus network using Cisco 6509 switches.
- Involved with configuration and implementation of a new Cisco large-scale military base campus MPLS network spanning across 4 on-site data centers and 100+ buildings.
- Worked with a major ISP auditing their network regions to correct discrepancies among configuration and engineering drawings, while providing network and security design recommendations.
Education
Bachelor of Science - Information Technology
Thomas Edison State University
Trenton, NJ09.2013
Certificate of Network & Systems Engineering -
PC AGE Career Institute
Parsippany, NJ06.2011
Skills
- Cisco IOS
- Cisco Nexus OS
- Cisco Meraki
- Juniper Junos OS
- Extreme EXOS
- Cisco Firepower
- Cisco ASA
- Juniper SRX
- Palo Alto
- Cisco Aironet
- Azure
- AWS
- VMware ESXi
- Kemp
- OSPF
- BGP
- EIGRP
- STP
- RSTP
- RPVSTP
- MSTP
- EAPS
- IKEv1
- IKEv2
- SSL
- TLS
- GRE
- VRRP
- HSRP
- LACP
- VPC
- VSS
- MLT
- VIST
- MPLS
- VPLS
- Metro-E
- VXLAN
- NSX-T
- 8021Q
- 80211
- RADIUS
- TACACS
- LDAP
- TCP
- UDP
- IPv4
- IPv6
- DNS
- DHCP
- Perl
- Python
- JSON
- Netconf
- Restconf
- VOIP
- Video
- SIP
- QOS
- Cisco Unified Border Element (CUBE)
- Cross-functional collaboration
- Problem solving
- Attention to detail
- Effective communication
- Customer support
- Time management
Certification
- CCNP - Enterprise (Route/Switch), CSC011939152
- JNCIS - Security
- JNCIS - Enterprise
- Extreme Networks Specialist
Personal Information
Title: Senior Network Engineer
Timeline
Network Infrastructure Engineer
ConvergeOne (C1)
08.2018 - 09.2025
Network Solutions Engineer
Strategic Products & Services (Acquired by ConvergeOne)
09.2013 - 08.2018
Network Design Engineer
MasTech Network Solutions (Formally Dynis LLC)
04.2011 - 09.2013
Bachelor of Science - Information Technology
Thomas Edison State University
Certificate of Network & Systems Engineering -
PC AGE Career Institute
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