SUPPORT ENG III

Fujitsu; Dallas (TX); On-site; USD 82,000 - 118,000; Full time

Benefits offered by this job

Medical, vision, and dental insurance

Life insurance

Disability insurance

401k

Paid Time Off

Colorado leave provisions

Job summary

1Finity, a Fujitsu company, seeks a senior Network Support Engineer to lead troubleshooting, validation, and incidents in multi-vendor environments. You will work with customers, NOC, and vendors to ensure reliability and performance of critical networks.

The role requires 5+ years in network operations, strong routing and optical transport knowledge, and automation experience. Competitive benefits and 24x7 support apply.

Qualifications

• Bachelor's degree or equivalent in a related field.
• 5+ years supporting enterprise, carrier, or data center networks.
• Hands-on with optical transport technologies and multi-vendor gear.
• Strong knowledge of routing protocols and lifecycle management.

Responsibilities

• Provide advanced troubleshooting and root cause analysis for IP, optical, and transport issues.
• Lead during major incidents and support critical customer escalations.
• Perform packet captures, protocol analysis, and log investigations.
• Configure and support multi-vendor networks (Nokia, Cisco, Juniper, Fujitsu).
• Develop automated tests and participate in network automation initiatives.

Skills

Network engineering

IP networking

Routing protocols (BGP, OSPF, IS-IS, e

Education

Bachelor's degree in Computer Science/IT/Network Engineering or equivalent

Tools

Nokia

Cisco

Juniper

Fujitsu

Job description

Job Location: Dallas, Texas

Location Flexibility: Primary Location Only

About 1FINITY

1Finity, a Fujitsu company, is a global provider of communications networks for our connected world. We uniquely combine technological leadership and expertise in open optical and wireless networking, network automation, and applied AI/ML to design, build, operate, and maintain critical digital communications network infrastructure. Collaborating closely with ecosystem partners, we deliver transformative outcomes for service providers and network operators, and enable them to lower TCO, improve network performance, and increase energy efficiency. We’re also a diverse, inclusive, and innovative workplace that achieves together. We offer highly competitive compensation, benefits, and career development opportunities, as well as flexible options for working your way. See what working at 1Finity looks like at https://www.linkedin.com/company/1finity-inc/. For more information, please visit https://1finity.com/?utm_source=li&utm_medium=soc.

SPM (Solution and Performance Management) Network Support Engineer

Service Operations is seeking a highly experienced Network Operations Engineer with advanced expertise in IP networking, optical transport technologies, and multi-vendor network environments. The ideal candidate possesses deep technical knowledge across routing, switching, transport, and network operations, along with a strong understanding of end-to-end network architectures.

This role is responsible for providing technical leadership in troubleshooting, network validation, service assurance, automation initiatives, and customer support activities. The successful candidate will work directly with customers, NOCs, engineering teams, and third-party vendors to ensure network reliability, performance, and service availability.

• Provide advanced troubleshooting and root cause analysis for IP, optical, and transport network issues
• Support critical customer escalations and provide technical leadership during major incidents
• Perform packet captures, protocol analysis, and detailed log investigations to identify network anomalies.
• Configure, validate, and support multi-vendor networking solutions including Nokia, Cisco, Juniper, Fujitsu, and other industry-leading platforms
• Support network implementation, migrations, expansions, and optimization activities
• Conduct software upgrades, firmware updates, and hardware refresh activities in both lab and production environments
• Develop, maintain, and execute automated test scripts and operational workflows
• Participate in network automation initiatives using modern scripting and automation frameworks
• Deliver exceptional customer experience through proactive communication and technical leadership.
• Work closely with Product Engineering, Software Development, NOC Operations, and third-party vendors
• Participate in disaster recovery, business continuity, and operational risk reduction initiatives
• Ability to work in a 24x7 operational support environment and participate in on-call escalation rotations

Required Qualifications

• Bachelor’s degree in computer science, Information Technology, Network Engineering, or equivalent experience
• 5+ years of experience supporting enterprise, carrier, service provider, or data center networks
• Experience supporting optical transport technologies including DWDM, ROADM, OTN, and Carrier Ethernet solutions
• Hands-on experience with Nokia, Cisco, Juniper, Fujitsu, and other networking platforms
• Strong understanding of software lifecycle management, software maintenance, and upgrade methodologies
• Extensive experience with routing protocols including BGP, OSPF, IS-IS, and MPLS-based environments.
• Excellent verbal and written communication skills.
• Strong analytical, problem-solving, and technical writing skills
• Cisco CCNA, Juniper JNCIA, Nokia NRFI

Desired Qualifications

• Experience with network automation, orchestration, and Infrastructure-as-Code methodologies
• Cisco CCNP, Juniper JNCIS/P, Nokia NRFII and ONF
• Understanding of cybersecurity principles and network security best practices
• Working knowledge of Linux operating systems and virtualization technologies
• Proficiency in scripting and automation using Python, Go, JavaScript, or similar languages

As of the date of this posting, a good faith estimate of the current pay scale for this position is:

• $82,465 to $117,807

Placement in the range depends on several factors such as experience and skills and may change over time. Additionally, this role may be eligible for an annual bonus, which is based on individual

We comply with all applicable minimum wage laws.

Benefits Available Include

• Medical, vision, and dental insurance,
• Life insurance,
• Short-term and long-term disability insurance,
• 401k
• Paid Time Off
• Any leave required under federal, state, or local law, as applicable, such as leave under the Colorado Healthy Families and Workplaces Act.

Benefits Are Subject To Vesting And Eligibility Requirements.

#Americas_Priority

Relocation Supported: No

Visa Sponsorship Approved: No

At 1Finity, one of our corporate principles is "We respect human rights". This commitment guides the actions of every1Finity Group member and is fundamental to how we operate, both as individuals and as a company. We are proud to be an equal opportunity employer that values diversity and inclusion. Qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. By empowering people, we can unleash our collective strengths to create a better experience for our employees, our customers, and our partners. California Privacy Act: https://www.fujitsu.com/us/Images/CALIFORNIA-CONSUMER-PRIVACY-ACT-NOTICE.pdf