Network Engineer

OptumUK

United Kingdom

On-site

GBP 45,000 - 50,000

Full time

14 days+

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Job summary

Un leader dans le secteur de la santé cherche un Network Engineer pour un projet de migration vers AWS impliquant 93 services d'un centre de données hérité. Vous aurez un rôle clé dans la conception et l'optimisation du paysage réseau, avec des responsabilités incluant la configuration sécurisée et l'automatisation du provisioning. Ce contrat de 6 mois offre un environnement collaboratif pour les passionnés de défis techniques et de solutions innovantes.

Qualifications

Expérience dans des environnements d'entreprise à grande échelle et migrations vers le cloud.
Compétences en résolution de problèmes avec une approche proactive.

Responsibilities

Assurer des opérations réseau robustes et sécurisées pendant la migration vers AWS.
Collaborer avec des équipes de sécurité et d'infrastructure pour une connectivité fiable.
Gérer la configuration réseau avec des technologies Juniper et Cisco.

Skills

Enterprise WAN

LAN

WLAN

Juniper technologies

Cisco technologies

Cloud networking (AWS, Azure)

Firewalls

Load balancers

IPS/IDS

DDoS protection

SDN technologies (NSX)

DNS management

Network automation practices

Job description

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Are you a seasoned Network Engineer seeking your next role, working on a high-impact transformation programme? Join us as we migrate a major legacy data centre—comprising 93 individual services—to a modern, scalable cloud platform on AWS by the end of 2025.

You’ll play a key role in designing, securing, and optimising the network landscape to support this cloud migration. This is a high-profile project, and your expertise will be instrumental in ensuring a seamless, secure transition.

We’re offering a 6 months Fixed term contract within a collaborative, forward-thinking engineering team. If you enjoy solving complex networking challenges and thrive in technically demanding environments, this could be the role for you.

What You’ll Do

You’ll be responsible for ensuring robust, secure, and scalable network operations throughout the migration of services from our on-premise data centre to AWS. You’ll collaborate with infrastructure, cloud, and security teams to deliver reliable connectivity and protection across hybrid environments.

Key responsibilities include:

Supporting the migration and re-architecture of on-premise network infrastructure to the cloud
Designing and maintaining secure, high-performing network configurations using Juniper and Cisco technologies
Managing load balancing and traffic optimisation to ensure service continuity and performance
Implementing and maintaining DNS, firewall, IPS/IDS, and DDoS solutions within a hybrid infrastructure
Supporting the deployment of Software Defined Networking (SDN), with a preference for VMware NSX
Automating network provisioning and policy management using Infrastructure as Code principles
Producing high-quality documentation and effectively communicating with technical and non-technical stakeholders

Who You’ll Be

You’ll be an experienced Network Engineer with a track record of supporting enterprise-scale hosted environments and cloud migrations. You’ll be confident working across complex hybrid infrastructures and collaborating closely with multidisciplinary teams.

We’re looking for someone with strong problem-solving skills, a proactive mindset, and the ability to work independently when needed.

Essential skills and experience: