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We’re Quickline, and we believe everyone deserves great internet. Whoever you are, wherever you are and whatever you do online - our customers are at the heart of everything we do. So we’re on a mission to provide lightning fast, reliable broadband that reaches the places other providers leave behind. Our mission relies on a team full of inspiring, customer obsessed people, and we’re looking for a Network Core Engineer with strong Juniper expertise to design, operate, and evolve our core network infrastructure.
Job Responsibility:
Contribute to design, implement, and maintain core IP/MPLS network infrastructure using Juniper platforms
Configure, optimize, and troubleshoot Juniper routers (e.g., MX, ACX series)
Manage and support routing protocols such as BGP, OSPF, and MPLS
Manage and support CGNAT and BNG platforms
Ensure high availability, redundancy, and performance across the core network
Perform network upgrades, migrations, and capacity planning
Troubleshoot complex network issues across layers 2–3 in production environments
Develop and maintain network documentation, standards, and diagrams
Collaborate with NOC and systems teams on cross-functional initiatives
Requirements:
Proven experience working in large-scale network engineering, with a focus on core or backbone networks
Strong hands on experience with Juniper JunOS
Experience with BGP in large-scale or service provider environments
Deep understanding of IP routing, MPLS, and traffic engineering
Excellent communication skills, with a proactive problem-solving approach
Must have the right to work in the UK
What we offer:
Pension – 5% employer / 5% employee contribution
Health Cashback Scheme – Can claim back prescription, GP and optician charges, therapy allowance, private outpatient consultations, EAP, 24/7 remote GP service, member discounts
25 days annual leave + bank holidays, your birthday, house move and wedding day off
Option to buy or sell up to 5 additional days annual leave
Enhanced Paternity/Maternity/Adoption leave
High Street Shopping Discount Scheme - Holidays, food and drink, insurance, sport, tech, high street, Ikea, M&S, cinema etc
Free Parking on site
Regular ‘Lunch & Learns’
Social Events – Summer and End of Year parties etc
Customer Obsessed Awards - Regular opportunities to win