Senior Network Engineer (Cisco)

Your responsibilities, Install, configure, and support network equipment including routers, switches, WAN accelerators, DNS/DHCP, firewalls, and wireless solutions., Implement and troubleshoot Cisco NAC solutions such as Cisco ISE (Authentication, Profiling, Posturing)., Manage and maintain various network and security platforms including:, Cisco ASA, Checkpoint, Fortigate NGFW, Cisco Nexus, Cisco ISR, Cisco Catalyst 4500/6500, Juniper, Arista, Aruba, Configure and troubleshoot routing protocols: BGP, OSPF, EIGRP, PBR, route filtering, redistribution, summarization, prefix‑lists, and static routing., Work with switching technologies: VPC, MLAG, VLANs, trunking, VTP, STP, MST, EtherChannels., Perform advanced network & security troubleshooting including packet capture and analysis., Support and enhance SDWAN and DNAC environments; contribute to automation initiatives using Python and Ansible., Take ownership of customer issues, ensuring timely resolution and clear communication., Participate in a 24x7x365 support model, including rotational shifts and on‑call responsibilities.

Strong expertise in Switching and Wireless technologies, preferably with Cisco and Arista., Solid hands‑on experience with enterprise routers, switches, firewalls, and wireless systems., Proven experience with Cisco ISE and network access control., Deep understanding of routing and switching protocols and architectures., Strong analytical and troubleshooting skills including packet-level diagnostics., Knowledge of SDWAN, Cisco DNAC, Python, and Ansible is a strong plus., Excellent communication and interpersonal skills, with customer‑focused mindset., Ability and willingness to work in a 24/7 operational environment., Preferred certifications: CCNA, CCNP (or equivalent practical experience).

What we offer, Practical benefits: yearly financial bonus, private medical care with Medicover with additional packages (e.g., dental, senior care, oncology) available on preferential terms, life insurance and access to NAIS benefit platform., Access to over 70 training tracks with certification opportunities (e.g., GenAI, Excel, Business Analysis, Project Management) on our NEXT platform. Dive into a world of knowledge with free access to Education First languages platform, TED Talks and Udemy Business materials and trainings., Cutting-Edge Technology: Position yourself at the forefront of IT innovation, working with the latest technologies and platforms. Capgemini partners with top global enterprises, including 145 Fortune 500 companies., Enjoy hybrid working model that fits your life - after completing onboarding, connect work from a modern office with ergonomic work from home, thanks to home office package (including laptop, monitor, and chair). Ask your recruiter about the details.

Benefits, sharing the costs of sports activities, no dress code, parking space for employees, extra social benefits, redeployment package, employee referral program, charity initiatives, access to courses e.g. Excel, VBA, RPA, Customer Care, unlimited access to Udemy Business, free chat/call with a therapist

Recruitment stages, Interview with the recruiter, Competency Tests/Language Verification, Video call with a manager, Final Decision

Capgemini Polska , Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of over 360,000 team members globally in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

This is how we work,

About the project

As a Senior Network Engineer, you will be responsible for designing, implementing, maintaining, and supporting our enterprise network infrastructure. You will work with advanced switching and wireless technologies - primarily Cisco and Arista - to ensure secure, reliable, and high‑performance connectivity across the organization. In this role, you will take ownership of complex technical issues, collaborate with cross‑functional teams, and support a 24/7 operational environment.

About the project

As a Senior Network Engineer, you will be responsible for designing, implementing, maintaining, and supporting our enterprise network infrastructure. You will work with advanced switching and wireless technologies - primarily Cisco and Arista - to ensure secure, reliable, and high‑performance connectivity across the organization. In this role, you will take ownership of complex technical issues, collaborate with cross‑functional teams, and support a 24/7 operational environment.

Your responsibilities

• Install, configure, and support network equipment including routers, switches, WAN accelerators, DNS/DHCP, firewalls, and wireless solutions.
• Implement and troubleshoot Cisco NAC solutions such as Cisco ISE (Authentication, Profiling, Posturing).
• Manage and maintain various network and security platforms including:
• Cisco ASA, Checkpoint, Fortigate NGFW
• Cisco Nexus, Cisco ISR, Cisco Catalyst 4500/6500
• Juniper, Arista, Aruba
• Configure and troubleshoot routing protocols: BGP, OSPF, EIGRP, PBR, route filtering, redistribution, summarization, prefix‑lists, and static routing.
• Work with switching technologies: VPC, MLAG, VLANs, trunking, VTP, STP, MST, EtherChannels.
• Perform advanced network & security troubleshooting including packet capture and analysis.
• Support and enhance SDWAN and DNAC environments; contribute to automation initiatives using Python and Ansible.
• Take ownership of customer issues, ensuring timely resolution and clear communication.
• Participate in a 24x7x365 support model, including rotational shifts and on‑call responsibilities.

Recruitment stages

• Interview with the recruiter
• Competency Tests/Language Verification
• Video call with a manager
• Final Decision

Benefits, sharing the costs of sports activities, no dress code, parking space for employees, extra social benefits, redeployment package, employee referral program, charity initiatives, access to courses e.g. Excel, VBA, RPA, Customer Care, unlimited access to Udemy Business, free chat/call with a therapist

Recruitment stages, Interview with the recruiter, Competency Tests/Language Verification, Video call with a manager, Final Decision

Capgemini Polska , Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of over 360,000 team members globally in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

This is how we work,

About the project

As a Senior Network Engineer, you will be responsible for designing, implementing, maintaining, and supporting our enterprise network infrastructure. You will work with advanced switching and wireless technologies - primarily Cisco and Arista - to ensure secure, reliable, and high‑performance connectivity across the organization. In this role, you will take ownership of complex technical issues, collaborate with cross‑functional teams, and support a 24/7 operational environment.