Craig Justynski
Kearny,NJ
Summary
Network Operations Engineer with over 26 years of experience spanning field services, critical incident response, and large-scale data center operations. Proven track record of monitoring and maintaining spine/leaf and legacy architectures, dark fiber infrastructure (up to 800G), and critical carrier escalations. Exceptional at cross-departmental coordination, vendor accountability, and global logistics management to maximize network uptime and guarantee strict SLA compliance.
Overview
27
27
years of professional experience
Work History
Network Operations Engineer
Bloomberg LP
Totowa, NJ
05.2009 - 06.2026
- Incident Triage: Isolate, mitigate, and resolve complex network alarms and critical outages across customer and backbone data circuits to ensure continuous uptime.
- Circuit Engineering: Test, provision, and troubleshoot end-to-end ethernet and dark fiber transport infrastructure, managing capacities up to 800G utilizing OTDR traces and JDSU diagnostics.
- Regional Telco Escalations: Serve as the Americas Escalations Representative, monitoring all backbone circuits for chronic faults and partnering with telecommunication vendors to resolve systemic issues and enforce strict SLA compliance.
- Proactive Monitoring & Documentation: Leverage internal and enterprise monitoring tools to detect edge/backbone anomalies prior to impacting market data delivery.
- Leverage AI tools (Claude Code) to streamline operational workflows, automate ticket updates, and author runbooks for troubleshooting guidelines.
- Packet Capture Analysis: Analyze TCP packet capture tools to troubleshoot and resolve complex terminal connectivity and performance issues.
- Infrastructure Projects: Coordinate and execute hardware upgrades, installations, and cut-overs of routers, switches, and servers across core data centers, remote node sites, and client environments.
Field Service Engineer
Bloomberg LP
New York, NY
04.2004 - 05.2009
- Executed complex network migrations, fail-over testing, and hardware cut-overs within tight maintenance windows, ensuring seamless transitions and reliability.
- Deployed to client sites for installation, replacement, and troubleshooting of routing hardware, diagnosing network connectivity and application-layer issues to ensure uninterrupted service.
- Collaborated with telecommunication providers in emergency vendor-meets to isolate and resolve circuit performance issues, minimizing downtime for clients.
Field Support Representative
Bloomberg LP
New York, NY
09.2002 - 04.2004
- Field Engineer Support: Delivered advanced technical escalation support to field engineers troubleshooting application and network connectivity issues at client sites, enhancing resolution effectiveness.
- Client Support: Diagnosed and resolved complex terminal, hardware, and application-layer bugs for global Bloomberg terminal subscribers, improving user experience.
- Coordinated vendor meets with telco vendors to expedite circuit repairs.
- Proactively monitored regional router infrastructure across the Americas, executing swift incident response, repair and ensuring seamless network failover.
Global Technical Support Representative
Bloomberg LP
New York, New York
12.1999 - 09.2002
- Diagnosed and resolved complex API integration issues within Microsoft Excel, ensuring real-time data synchronization and seamless sheet updates for clients.
- Isolated root causes of terminal slowness by correlating hardware/software performance metrics with real-time network bandwidth monitoring, enabling timely interventions to enhance system performance.
- Resolved critical on-site hardware failures for Bloomberg terminals, restoring functionality and minimizing downtime for users.
Education
Technical Support Program -
Chubb Institute
Jersey City, NJ12-1999
Some College (No Degree) - Biology 1995-1997
Essex County College
Newark, NJHigh School Diploma -
Kearny High School
Kearny, NJ06-1994
Skills
- Routing & Switching: BGP, eBGP, OSPF, MPLS
- Network Analysis & Monitoring: Wireshark, Packet Capture Analysis, Humio, Grafana, FMADIO
- High Availability & Convergence: BFD, VRRP, Fail-over Testing
- Automation & Tools: Claude Code (AI Runbooks/Scripting), SAP Inventory Systems, Ticketing Automation
- Transport & Fiber Optics: Dark Fiber (up to 800G), Circuit Engineering, OTDR Traces, JDSU Diagnostics
- Hardware: Cisco, Juniper, Arista, Nokia, Dell, HP, Ciena, Infinera
- Operations & Leadership: Critical Incident Response, Regional Telco Escalations, Vendor Management (TAC), SLA Compliance
Military Service
United States Army National Guard - Combat Medic, 2/102nd Armored Battalion 1995-1999
Accomplishments
- Customer & Culture Champion, 14 Feb 2013
Timeline
Network Operations Engineer
Bloomberg LP
05.2009 - 06.2026
Field Service Engineer
Bloomberg LP
04.2004 - 05.2009
Field Support Representative
Bloomberg LP
09.2002 - 04.2004
Global Technical Support Representative
Bloomberg LP
12.1999 - 09.2002
Technical Support Program -
Chubb Institute
Some College (No Degree) - Biology 1995-1997
Essex County College
High School Diploma -
Kearny High School