SUPPORT ENG III

Fujitsu Careers; Dallas (TX); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

Dental insurance

Life insurance

Disability insurance (short/long-term)

401k

Paid Time Off

Applicable statutory leave

Job summary

1Finity, a Fujitsu company, is seeking a highly experienced Network Operations Engineer to lead troubleshooting and network validation across IP, optical, and transport domains in a multi-vendor environment. You will collaborate with NOC, engineering, and vendor teams to ensure reliability and performance.

The role requires hands-on expertise with Nokia, Cisco, Juniper, and Fujitsu platforms, plus strong scripting and automation experience.

Qualifications

• Bachelor’s degree in computer science, IT, Network Engineering, or equivalent experience.
• 5+ years of experience supporting enterprise, carrier, service provider, or data center networks.
• Experience with optical transport technologies including DWDM, ROADM, OTN, and Carrier Ethernet.
• Hands-on experience with Nokia, Cisco, Juniper, Fujitsu, and other networking platforms.
• Strong understanding of software lifecycle management, maintenance, and upgrade methodologies.
• Extensive experience with routing protocols including BGP, OSPF, IS-IS, and MPLS-based environments.

Responsibilities

• 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 log investigations to identify network anomalies.
• Configure, validate, and support multi-vendor networking solutions including Nokia, Cisco, Juniper, Fujitsu, and other platforms.
• Support network implementation, migrations, expansions, and optimization activities.
• Conduct software upgrades, firmware updates, and hardware refresh activities in lab and production environments.
• Develop, maintain, and execute automated test scripts and operational workflows.
• Participate in network automation initiatives using scripting and automation frameworks.
• Deliver exceptional customer experience through proactive communication and leadership.
• Work closely with Product Engineering, Software Development, NOC Operations, and third-party vendors.

Skills

IP networking

Optical transport

Multi-vendor networking

Routing protocols

Automation scripting

Communication skills

Education

Bachelor’s degree in computer science, Information Technology, Network Engineering, or equivalent

Tools

Nokia

Cisco

Juniper

Fujitsu

Job description

Location Flexibility: Primary Location Only

Posting Start Date: 9/9/26

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

Corporate Overview

1Finity is a trusted technology partner serving customers across diverse industries, helping them maximize the value, performance, and reliability of their communications networks. As a leading U.S.-based networking solutions provider and a top U.S. patent holder in optical networking, 1Finity delivers innovative technologies that enable mission-critical connectivity, network transformation, and operational excellence.

Job Description

Service Operations isseekinga highly experienced Network Operations Engineer with advancedexpertisein IP networking, optical transport technologies, and multi-vendor network environments. The ideal candidatepossessesdeep technical knowledge across routing, switching, transport, and network operations, along with a strong understanding of end-to‑end network architectures.

This roleis responsible forproviding 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.

Key Responsibilities

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 toidentifynetwork 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 andparticipatein on‑call escalation rotations

RequiredQualifications

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, andupgrademethodologies

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

Desired Qualifications

Experience with network automation, orchestration, and Infrastructure-as-Code methodologies

CiscoCCNP, JuniperJNCIS/P, Nokia NRFII and ONF

Understanding of cybersecurity principles and network security best practices

Working knowledge of Linux operating systems and virtualization technologies

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

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.

Applications are being accepted on an ongoing basis.

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