Senior Network Engineer — Remote/Hybrid (Multi-Region DC)

Hack The Box; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

25 annual leave days

Paid parental leave

Home Office Allowance

Training & conferences budget

Equipment & lab access

Flexible hours

Job summary

Hack The Box seeks a Senior Network Engineer to own design, deployment, and reliability of our global data-center network. You’ll shape spine‑leaf architectures, manage eBGP/iBGP, and build scalable EVPN‑VXLAN fabrics across regions while modernizing automation with Ansible and Terraform.

The role offers flexible remote/hybrid work with relocation support and a strong focus on observability using Prometheus and Grafana. Remote-friendly with international scope.

Qualifications

• 5+ years of professional experience in data center networking.
• Deep hands-on BGP experience across multi-site environments.
• Proven EVPN‑VXLAN fabric design experience.
• Strong JunOS proficiency on Juniper devices (QFX/MX).
• Knowledge of spine-leaf/IP fabric architectures, VLANs and VRFs.
• Experience with network automation tools (Ansible, Terraform, Nornir).
• Linux networking fundamentals (iptables/nftables, VXLANs).
• Excellent written communication for remote collaboration.
• Cybersecurity-minded is a strong plus.

Responsibilities

• Design and operate spine-leaf architectures across multiple data centers.
• Manage BGP peering, route policies and prefix filtering in multi-site environments.
• Develop EVPN‑VXLAN fabrics for scalable connectivity.
• Configure, upgrade and harden Juniper equipment running JunOS.
• Develop network automation using Ansible, Terraform or similar tools.
• Improve monitoring and observability with Prometheus and Grafana.
• Collaborate with platform teams for VNware, Kubernetes and Ceph storage needs.
• Document designs, runbooks and SOPs for a global team.
• Participate in on-call rotation across regions.

Skills

BGP

EVPN‑VXLAN

JunOS

OSPF

Linux networking

Ansible

Terraform

Prometheus

Grafana

Network automation

Tools

Juniper QFX/MX (JunOS)

Nornir

Kubernetes networking (CNI)

Job description

Hack The Box seeks a Senior Network Engineer to own design, deployment, and reliability of our global data-center network. You’ll shape spine‑leaf architectures, manage eBGP/iBGP, and build scalable EVPN‑VXLAN fabrics across regions while modernizing automation with Ansible and Terraform.

The role offers flexible remote/hybrid work with relocation support and a strong focus on observability using Prometheus and Grafana. Remote-friendly with international scope.