Senior Infrastructure Engineer

NewDay Technology Limited; Leeds; On-site; GBP 70,000 - 110,000; Full time

Job summary

NewDay is seeking a Senior Infrastructure Engineer to design, build and operate Azure infrastructure across our cloud environment. You’ll optimise security, resilience and automation while delivering scalable solutions in a fast-paced financial services context.

You’ll work primarily in Microsoft Azure, applying IaC tools, scripting and monitoring to improve reliability, security and performance. The role is based in Leeds with the potential for hybrid arrangements.

Qualifications

• Experience designing and managing Azure infrastructure.
• Experience with IaaS and PaaS on Azure.
• Proficient with IaC tools and automation.
• Ability to work independently and in teams.

Responsibilities

• Design, build, deploy and support Azure infrastructure.
• Maintain secure and reliable infrastructure through patching and DR.
• Investigate infrastructure challenges and improve resilience.
• Collaborate across teams and maintain architecture docs.
• Improve infrastructure through automation and standardisation.

Skills

Azure expertise

Windows Server

Active Directory

DNS

Group Policy

Security controls

Automation

IaC tooling

Vulnerability management

Education

Bachelor's degree in IT/Computing

Tools

Terraform

Bicep

PowerShell

Git

Grafana

SolarWinds

Azure Monitor

Job description

Mission Statement & Summary

At NewDay, our technology helps us support millions of customers, and the infrastructure behind it needs to be secure, reliable and ready to evolve. As a Senior Infrastructure Engineer, you’ll join our Platform Infrastructure Engineering team and help build, support and continuously improve the cloud infrastructure that keeps our services running. You’ll work primarily across our Microsoft Azure environment, combining hands‑on infrastructure engineering with automation, security and operational excellence. From solving complex technical challenges to improving how we build and manage our cloud services, you’ll have the opportunity to work with modern cloud technologies while helping shape the future of infrastructure at NewDay. We know skills can be built in different environments.

What You’ll Be Doing

• Design, build, deploy and support Azure infrastructure, including virtual machines, storage, networking, Key Vaults, backup, disaster recovery, monitoring and security services.
• Maintain secure and reliable infrastructure through vulnerability remediation, patching, platform maintenance and operational best practice.
• Investigate and resolve complex infrastructure challenges, using your technical expertise to improve the resilience and availability of our services.
• Collaborate with teams across NewDay on technical projects, while creating and maintaining useful architecture, standards and operational documentation.
• Help continuously improve our infrastructure through automation and standardisation, while balancing project delivery, operational improvements and escalated incidents, including rotational out-of-hours support.

Essential Skills

• Strong knowledge of Microsoft Azure and Windows Server environments, including Active Directory, DNS, Group Policy, File Services, backup and disaster recovery.
• Experience supporting enterprise‑scale Azure IaaS and PaaS services, including Virtual Machines, Storage Accounts, Azure Networking, Azure Backup, Azure Site Recovery and Key Vaults.
• Knowledge of Azure management, monitoring and security tooling, which may include Azure Monitor, Log Analytics, Azure Update Manager, Defender for Cloud, Azure Policy, Bastion, Just‑In‑Time Access and tools such as Grafana or SolarWinds.
• Experience using Infrastructure‑as‑Code and automation technologies such as Bicep, Terraform, Git and PowerShell to deliver and improve infrastructure services.
• Experience maintaining secure enterprise infrastructure, including vulnerability management, security controls, compliance, backup and recovery, with the ability to work independently and collaboratively.

We’d Love You To Know Or Learn

• AWS cloud environments and supporting or deploying workloads across additional public cloud platforms.
• Linux‑based infrastructure, including Red Hat Enterprise Linux (RHEL) and Ubuntu virtual machines.
• Security and infrastructure hardening frameworks such as CIS Benchmarks and NIST, particularly within financial services or another regulated environment.
• Modern identity and secure‑access technologies, including Azure Enterprise Applications, Microsoft Defender capabilities and Zero Trust solutions such as Zscaler.
• AI technologies, AI agents and Copilot‑based tools, and how they can support automation, productivity and operational efficiency.

At NewDay, we value all types of diversity. We’re an equal opportunity employer and believe that our differences create a vibrant, authentic working culture. We want all our colleagues to feel able to bring their whole selves to work. We don’t discriminate on the basis of protected characteristics or identities. We make sure that every job is crafted to be inclusive and that people with disabilities or caring responsibilities can take part in the application and interview process. Tell us if you need accommodations: We’ll put reasonable adjustments in place to support you. We work with Textio to make our job design and hiring inclusive.

Permanent We help people move forward with credit and help our colleagues to move their careers forward too. Through innovative consumer credit and embedded finance products powered by groundbreaking technology, we deliver over 300 million transactions every year. Our brands include Aqua, Marbles, Fluid, Bip and NewPay. We partner with leading brands such as AO, Argos, Boohoo, John Lewis and Lloyds Bank. Over 5 million UK customers are supported by our award‑winning customer service.