Capgemini
Senior Connectivity & NW Engineer - K3s Network Engineer
Capgemini, Portland, Oregon, United States, 97204
About The Job You’re Considering
The K3s Kubernetes Network developing Engineer will focus on networking for K3s clusters deployed across hybrid architectures (x86, ARM, accelerators). The role involves designing, implementing, and maintaining cluster networking that integrates with external systems. This includes writing Kubernetes controllers, managing IP address allocation, configuring VLANs outside of K3s and exposing them inside, extending networking with Multus CNI, and ensuring clusters support advanced CNI (Cilium/Calico) and bare-metal load balancing. The engineer ensures application and infrastructure networking is reliable, scalable, and secure. Location: Portland, Oregon Your Role
Architect and implement networking for hybrid K3s clusters. Configure and optimize CNIs (Multus, Cilium, Calico) for multi-network scenarios. Enable VLAN-backed networks, SR-IOV, and multi-interface workloads. Deploy and manage bare-metal load balancers (MetalLB, BGP). Build custom Kubernetes controllers/operators in Go for declarative networking. Automate IPAM, DNS integration, and network provisioning across hybrid environments. Ensure seamless GitOps integration with CRDs and controllers. Implement network policies, encryption, and observability (Cilium Hubble, Prometheus). Collaborate with DevOps, SRE, and hardware teams to align with platform needs. Document architecture, runbooks, and provide internal knowledge transfer. Your Skills And Experience
Deep expertise in Kubernetes/K3s networking and CNIs. Hands-on experience with Multus, Cilium, Calico, and MetalLB. Strong Go development skills (Kubebuilder, Operator SDK). Proficiency in Linux networking (netlink, iproute2, eBPF). Experience with IPAM, VLAN bridging, DHCP/DNS integration. Security-first mindset: RBAC, network policies, encryption. Familiarity with service mesh (Istio, Linkerd) and high-performance networking (SR-IOV, DPDK). Bonus: Contributions to Kubernetes networking or CNI projects. Life at Capgemini
Capgemini Supports All Aspects Of Your Well-being Throughout The Changing Stages Of Your Life And Career. For Eligible Employees, We Offer Flexible work Healthcare including dental, vision, mental health, and well-being programs Financial well-being programs such as 401(k) and Employee Share Ownership Plan Paid time off and paid holidays Paid parental leave Family building benefits like adoption assistance, surrogacy, and cryopreservation Social well-being benefits like subsidized back-up child/elder care and tutoring Mentoring, coaching and learning programs Employee Resource Groups Disaster Relief About Capgemini Engineering
World leader in engineering and R&D services, Capgemini Engineering combines its broad industry knowledge and cutting-edge technologies in digital and software to support the convergence of the physical and digital worlds. Coupled with the capabilities of the rest of the Group, it helps clients to accelerate their journey towards Intelligent Industry. Capgemini Engineering has 65,000 engineer and scientist team members in over 30 countries across sectors including Aeronautics, Space, Defense, Naval, Automotive, Rail, Infrastructure & Transportation, Energy, Utilities & Chemicals, Life Sciences, Communications, Semiconductor & Electronics, Industrial & Consumer, Software & Internet. Capgemini Engineering is an integral part of the Capgemini Group, a global business and technology transformation partner. It is a responsible and diverse group of 340,000 team members in more than 50 countries. The Group reported 2024 global revenues of €22.1 billion. Get the future you want | www.capgemini.com Disclaimer Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law. This is a general description of the Duties, Responsibilities and Qualifications required for this position. Capgemini will consider reasonable accommodations during recruitment where needed. Please be aware that Capgemini may capture your image during the interview process for verification during hiring and onboarding. Applicants for employment in the US must have valid work authorization that does not require sponsorship of a visa for employment. Job
Developer Schedule
Full-time Primary Location
US-OR-Portland Organization
ERD PPL US Seniority level
Not Applicable Employment type
Full-time Job function
Information Technology Industries
IT Services and IT Consulting Business Consulting and Services Outsourcing and Offshoring Consulting
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The K3s Kubernetes Network developing Engineer will focus on networking for K3s clusters deployed across hybrid architectures (x86, ARM, accelerators). The role involves designing, implementing, and maintaining cluster networking that integrates with external systems. This includes writing Kubernetes controllers, managing IP address allocation, configuring VLANs outside of K3s and exposing them inside, extending networking with Multus CNI, and ensuring clusters support advanced CNI (Cilium/Calico) and bare-metal load balancing. The engineer ensures application and infrastructure networking is reliable, scalable, and secure. Location: Portland, Oregon Your Role
Architect and implement networking for hybrid K3s clusters. Configure and optimize CNIs (Multus, Cilium, Calico) for multi-network scenarios. Enable VLAN-backed networks, SR-IOV, and multi-interface workloads. Deploy and manage bare-metal load balancers (MetalLB, BGP). Build custom Kubernetes controllers/operators in Go for declarative networking. Automate IPAM, DNS integration, and network provisioning across hybrid environments. Ensure seamless GitOps integration with CRDs and controllers. Implement network policies, encryption, and observability (Cilium Hubble, Prometheus). Collaborate with DevOps, SRE, and hardware teams to align with platform needs. Document architecture, runbooks, and provide internal knowledge transfer. Your Skills And Experience
Deep expertise in Kubernetes/K3s networking and CNIs. Hands-on experience with Multus, Cilium, Calico, and MetalLB. Strong Go development skills (Kubebuilder, Operator SDK). Proficiency in Linux networking (netlink, iproute2, eBPF). Experience with IPAM, VLAN bridging, DHCP/DNS integration. Security-first mindset: RBAC, network policies, encryption. Familiarity with service mesh (Istio, Linkerd) and high-performance networking (SR-IOV, DPDK). Bonus: Contributions to Kubernetes networking or CNI projects. Life at Capgemini
Capgemini Supports All Aspects Of Your Well-being Throughout The Changing Stages Of Your Life And Career. For Eligible Employees, We Offer Flexible work Healthcare including dental, vision, mental health, and well-being programs Financial well-being programs such as 401(k) and Employee Share Ownership Plan Paid time off and paid holidays Paid parental leave Family building benefits like adoption assistance, surrogacy, and cryopreservation Social well-being benefits like subsidized back-up child/elder care and tutoring Mentoring, coaching and learning programs Employee Resource Groups Disaster Relief About Capgemini Engineering
World leader in engineering and R&D services, Capgemini Engineering combines its broad industry knowledge and cutting-edge technologies in digital and software to support the convergence of the physical and digital worlds. Coupled with the capabilities of the rest of the Group, it helps clients to accelerate their journey towards Intelligent Industry. Capgemini Engineering has 65,000 engineer and scientist team members in over 30 countries across sectors including Aeronautics, Space, Defense, Naval, Automotive, Rail, Infrastructure & Transportation, Energy, Utilities & Chemicals, Life Sciences, Communications, Semiconductor & Electronics, Industrial & Consumer, Software & Internet. Capgemini Engineering is an integral part of the Capgemini Group, a global business and technology transformation partner. It is a responsible and diverse group of 340,000 team members in more than 50 countries. The Group reported 2024 global revenues of €22.1 billion. Get the future you want | www.capgemini.com Disclaimer Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law. This is a general description of the Duties, Responsibilities and Qualifications required for this position. Capgemini will consider reasonable accommodations during recruitment where needed. Please be aware that Capgemini may capture your image during the interview process for verification during hiring and onboarding. Applicants for employment in the US must have valid work authorization that does not require sponsorship of a visa for employment. Job
Developer Schedule
Full-time Primary Location
US-OR-Portland Organization
ERD PPL US Seniority level
Not Applicable Employment type
Full-time Job function
Information Technology Industries
IT Services and IT Consulting Business Consulting and Services Outsourcing and Offshoring Consulting
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