Network Engineer

What we do Circle B builds sustainable IT infrastructure for the AI and cloud era. For over a decade— we have designed and deployed datacenter, edge, and AI/HPC systems on Open Compute Project (OCP) hardware. We are independent, vendor-neutral, and ISO 9001 / 14001 / 27001 certified, with deployments across multiple countries. Our newest initiative is a sovereign EU GPU cloud — operating under full Dutch/EU jurisdiction and beyond the reach of the US CLOUD Act, for regulated European organizations that cannot compromise on where their data lives. The Role Network Engineer — BGP / Juniper / EVPN-VXLAN / GPU Cluster Networking The opportunity We run our own hosting infrastructure and production network, and we’re looking for a hands-on Network Engineer who enjoys real ownership: operating core connectivity, improving reliability, and building out capabilities that directly matter to customers. You’ll work on an environment with real routing (own ASN), real datacenter networking, and meaningful change-impact. If you like being close to the technology and seeing your work show up in production immediately, you’ll fit well. What you’ll do Operate and improve our production network Maintain and evolve our Juniper routing and switching environmentOwn BGP operations on our ASN: routing policy, filtering, communities, troubleshooting, and traffic engineeringOperate EVPN/VXLAN in production and help extend it as we growManage IPv4/IPv6 addressing and clean subnet allocation/assignment workflows Build and mature capabilities Lead expansion into internet exchanges and peering: planning, implementation, validation, and turning it into a reliable operational capabilityImplement routing-security best practices (e.g., RPKI/IRR hygiene and route-leak protections)Lead the implementation of a practical DDoS mitigation approach (technology + processes + runbooks) Documentation, observability, and operational quality Use NetBox as the source of truth for network inventory and IP addressingImprove monitoring/alerting and visibility (telemetry/logging/traffic insight) using the existing toolchain and extending it where neededCreate and maintain diagrams, runbooks, and change documentation so the environment becomes easier to run over time Be helpful beyond networking when needed When network workload is lighter, support adjacent infrastructure areas (Linux, virtualization, storage, automation, or occasional customer escalations) depending on your strengths and team priorities What we’re looking for Core requirements Proven experience operating production networks in a hosting/datacenter/ISP-like environmentStrong practical knowledge of:BGP (policy, filtering, communities, troubleshooting)Datacenter switching and L2/L3 fundamentalsIPv4/IPv6 operations and addressing designComfortable owning production changes: planning, validation, rollback thinking, and post-change checksFluent English (spoken and written) Big plus Strong hands-on network security experience (firewall policy, segmentation, change discipline, rule hygiene)Experience extending EVPN/VXLAN designs beyond day-to-day operationsExperience building DDoS mitigation workflows end-to-endExperience driving improvements in environments with low structure (you bring structure without bureaucracy)Experience with GPU cluster networking; RDMA/RoCE in production The working style that succeeds here You stay effective when priorities shift and interruptions happenYou communicate clearly during incidents and changesYou take ownership and enjoy making systems more reliable, more visible, and better documented over time Working model This is an on-site role in Hoofddorp, 5 days per week, to stay close to the hardware, platform engineering, and execution environment. Benefits Competitive salary.Pension scheme.Visa sponsorship.Company gym.Modern office in Hoofddorp.Informal and open working culture.Participation in relevant conferences and exhibitions across Europe.Opportunity to develop your skills in a fast-growing technology environment. Our Work Culture Circle B offers an informal working atmosphere with energetic people who enjoy being part of a growing technology company. We have an open management culture and encourage colleagues to contribute to improving our products, services, and processes. If this sounds like a good fit, please send your CV and motivation letter to: surbi@tauruseu.com