Staff Network Engineer

Cadence Design Systems; Dublin; On-site; EUR 120,000 - 160,000; Full time

Benefits offered by this job

25 days holiday

Private healthcare

Life insurance

Pension plan

Cycle to work

Gym subsidy

Volunteer days

Stock Purchase Plan

Job summary

Cadence Design Systems is seeking a Senior Staff Network Engineer to design, deploy, and operate Cadence’s global enterprise network across data centres, campus environments, and WAN. You will lead high-impact network initiatives with cross-functional IT and Security teams, delivering secure, highly available connectivity.

The role requires deep technical expertise, strong operational discipline, and the ability to drive complex programs from design through Day 2 operations, with awareness of

Qualifications

• 12–15 years of experience in enterprise network architecture, design, deployment, and operations.
• Bachelor’s degree in Computer Science, Engineering, or related field.
• Cisco certification required (CCNP preferred; CCIE a strong plus).

Responsibilities

• Design and deliver scalable data centre and campus network solutions using Cisco, Arista, HPE, and Aruba platforms.
• Support WAN operations including internet edge and SD-WAN integrations.
• Lead complex troubleshooting and root-cause analysis; implement preventive changes.
• Partner with IT and Security teams to deliver cross-domain initiatives.
• Establish and maintain network documentation, diagrams, standards, and runbooks.
• Operationalise solutions for Day 2 operations, including monitoring, capacity planning, and change processes.
• Communicate status, risks, and trade-offs to stakeholders; manage multiple initiatives.

Skills

Network architecture

CCNP

CCIE

Routing protocols

Network security

SD-WAN

Network automation

Scripting

Education

Bachelor's degree

Tools

Cisco IOS

Arista

HPE Ar u ba

Job description

At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology. Cadence is a pivotal leader in electronic design, building upon more than 30 years of computational software expertise. The company applies its underlying Intelligent System Design strategy to deliver software, hardware and IP that turn design concepts into reality. Cadence customers are the world’s most innovative companies, delivering extraordinary electronic products from chips to boards to systems for the most dynamic market applications including consumer, hyperscale computing, 5G communications, automotive, aerospace industrial and health. At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology. Job Title: Staff Network Engineer Location: Cork or Dublin, Ireland Reports to: Senior Engineering Group Director

Job Overview:

Senior, hands-on Network Engineer responsible for designing, deploying, and operating Cadence’s global enterprise network across data centres, campus environments, and WAN. This role focuses on delivering secure, highly available connectivity and leading high-impact initiatives with clear, measurable outcomes. You will bring deep technical expertise, strong operational discipline, and the ability to lead complex network programmes from design through Day 2 operations, working closely with cross-functional partners across IT and Security

Job Responsibilities:

• Design and deliver scalable, resilient data centre and campus network solutions using Cisco, Arista, HPE, and Aruba platforms
• Support WAN operations including internet edge and SD-WAN integrations, ensuring consistent routing and security posture
• Lead complex troubleshooting and root-cause analysis; implement preventive changes to reduce incidents and unplanned outages
• Partner with teams across Data Centre, Storage, Virtualisation, Windows, Unix, Cloud Ops, and Security to provide technical direction and deliver cross-domain initiatives
• Establish and maintain network documentation, diagrams, standards, and runbooks; ensure designs are supportable and operationally ready
• Operationalise delivered solutions for Day 2 operations, including monitoring and alerting, capacity planning, lifecycle management, and change/release processes
• Communicate status, risks, and trade-offs clearly to stakeholders; manage deliverables, timelines, and dependencies across multiple initiatives

Job Qualifications:

• 12–15 years of experience in enterprise network architecture, design, deployment, and operations (data center, campus, WAN and hybrid cloud).
• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Cisco certification required (CCNP preferred; CCIE a strong plus)
• Extensive hands-on experience designing, deploying, and operating enterprise networks across data centre, campus, WAN, and hybrid cloud environments
• Expert knowledge of routing and switching technologies (e.g. BGP, OSPF, EVPN/VXLAN) and high-availability designs (MLAG/vPC, LACP)
• Strong foundation in network security principles, including segmentation, ACLs, firewall integrations, and secure remote access, with experience partnering closely with Security teams
• Hands-on experience with NAC/AAA solutions, such as Cisco ISE and/or Aruba ClearPass
• Proven ability to lead complex troubleshooting, root-cause analysis, and incident response, with disciplined change, risk, and lifecycle management practices
• Experience designing solutions that are operationally ready, including monitoring, alerting, capacity planning, and documentation
• Strong communication skills, with the ability to translate technical detail into clear, executive-ready options and recommendations

Additional Skills/Preferences:

• Experience with SD-WAN design and operations and hybrid connectivity patterns
• Exposure to Cisco VPN, F5 Load Balancers, or similar technologies
• Experience with network automation, observability, telemetry, or scripting to improve reliability and reduce MTTR

Check what we can offer you:

• Competitive salary
• 25 days holiday per year
• Private Healthcare and Life Insurance Group
• Personal Pension Plan
• Cycle to work scheme and gym subsidy
• 5 days paid time to volunteer to give back to our communities
• Employee Stock Purchase Plan
• The opportunity to work for a Great Place to Work & Fortune 100 organization

Cadence is committed to equal employment opportunity and employment equity throughout all levels of the organization. We strive to attract a qualified and diverse candidate pool and encourage diversity and inclusion in the workplace. We’re doing work that matters. Help us solve what others can’t.

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Cadence plays a critical role in creating the technologies that modern life depends on. We are a global electronic design automation company, providing software, hardware, and intellectual property to design advanced semiconductor chips that enable our customers create revolutionary products and experiences. Thanks to the outstanding caliber of the Cadence team and the empowering culture that we have cultivated for over 25 years, Cadence continues to be recognized by Fortune Magazine as one of the 100 Best Companies to Work For.

Our shared passion for solving the world’s toughest technical challenges, our dedication to pushing the limits of the industry, and our drive to do meaningful work differentiates the people of Cadence.

Cadence is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, basis of disability, or any other protected class.