Infrastructure Technical Engineer in Southampton

About the Business

Quilter plc is a leading wealth management business, helping to enable brighter financial futures for every generation. Quilter oversees £141.9 billion in customer investments (as at 31 March 2026). It has an adviser and customer offering spanning financial advice, investment platforms, multi-asset investment solutions, and discretionary fund management. The business is comprised of two segments: Affluent and High Net Worth.

Affluent encompasses the financial planning business, Quilter Financial Planning, the Quilter Investment Platform and Quilter Investors, the multi-asset investment solutions business. High Net Worth includes the discretionary fund management business, Quilter Cheviot, together with Quilter Cheviot Financial Planning – offering a highly personalised service to private clients, charities, trustees, and professional partners. Quilter Cheviot has presence throughout the UK, Ireland and Channel Islands.

At Quilter we never stand still. Our foundations are rooted in our extraordinary expertise, which is trusted by hundreds of thousands of customers, but we have great ambitions to stay one step ahead and make an even greater difference to the people and communities we serve, including our colleagues. Our business is transforming, continually modernising, and becoming even more customer centric. So, if you want to be bold in the pursuit of your ambitions, bring new ideas, and challenge and evolve what we do, it’s the perfect time to join us!

About the Role

• Level: 4
• Department: Technology
• Location: Southampton | London
• Contract type: Permanent

Quilter has a vibrant, diverse, and highly successful IT team which is now looking to employ a Technical Specialist. This role will support transformational change that enables Quilter Technology department to deliver against strategic programmes.

Providing infrastructure expertise to deliver detailed analysis of our technical estate whilst developing the steps to modernise and improve efficiency of our services. Quilter is changing the way it delivers IT services to its users; the right candidate must be willing to embrace that change with enthusiasm and energy.

The Infrastructure Technical Engineer will:

• Provide expert-level technical analysis across Microsoft Cloud, Infrastructure, Networking, Security and Automation domains.
• Build strong relationships with internal teams, partners, SMEs and senior stakeholders to ensure solutions are well-designed, secure and fit for purpose.
• Lead or support cross-team delivery initiatives, technical assessments and continuous improvement activities.
• Produce clear documentation including designs, BAU procedures, risk assessments, BIAs, DR plans and technical guidance.
• Support Quilter’s technology transformation initiatives including cloud adoption, infrastructure modernisation and zero-trust security uplift.
• Champion operational excellence, ensure risks are understood and mitigated, and support problem/incident resolution at an expert level.
• Share knowledge widely and mentor colleagues, growing capability within Infrastructure & Operations.
• Act as an ambassador for Technology, modelling Quilter’s values.

Microsoft 365 & Entra ID

• Global administration of M365 across complex multi-tenant environments.
• Purview, including DLP, AIP, sensitivity labels and classification frameworks.
• Intune for deployment and management of end point devices.
• Microsoft Teams including Phone System configuration, PSTN, voice routing and cross-tenant collaboration.
• Exchange Online configuration including hybrid setups, migrations, mail hygiene (DMARC/DKIM/SPF).
• Entra ID configuration including Conditional Access, App Registrations, Enterprise Apps, B2B, app proxies.

Microsoft Azure & Cloud Services

• Azure IaaS deployments, networking (VNets, subnets, NSGs, VPN Gateway), Azure Sentinel (SIEM) and Azure Backup.
• Architecting secure multi-VLAN cloud/on-prem hybrid infrastructures.
• Strong understanding of identity, security and cloud governance patterns.

Information Security

• Vulnerability management awareness including penetration testing engagement and remediation.
• Endpoint security: Defender for Endpoint.

Backup & Resilience

• Disaster Recovery planning including BIAs, DR testing execution and documentation.
• Rubrik cloud protection.

Automation, Scripting & Databases

• PowerShell and Terraform; with a professional automation first mindset.

About You

The ideal candidate will have demonstrable experience equivalent to:

• Operating as a senior/lead infrastructure engineer supporting end-to-end IT estates across cloud, on-prem and hybrid models.
• Working with technical SME’s specialising in applications and infrastructure; servers, networks, data, storage, middleware and telephony.
• Managing full infrastructure stacks including servers, storage, networking, security, M365, monitoring and BAU operations.
• Proven track record of supporting the delivery of technical change covering implementation of new services, IT transformation, remediation, integration or migrations with an automation mindset.
• Working in regulated environments and contributing to audits, due diligence and InfoSec governance.
• Knowledge of frameworks such as ITIL and the Development Lifecycle.
• Providing technical leadership, mentoring junior engineers and shaping departmental capability.
• Delivering excellent communication — simplifying technical complexity for a broad business audience.

Behavioural Competencies

• Excellent communication, stakeholder management and influencing skills demonstrating the ability to translate technical and complex challenges into clearly written proposals for senior stakeholders.
• Calm, structured and analytical under pressure; able to guide others through incidents and complex change.
• Passion for modernisation, research and continuous improvement.
• Commitment to knowledge-sharing and raising team capability.

Inclusion & Diversity

We value diversity and strive to promote inclusivity in all aspects of our culture. We believe in equal opportunities for all, ensuring that no applicant encounters less favourable treatment based on anything but their skills, qualifications, experience, and potential. We celebrate the unique contributions of a diverse workforce and create a respectful, nurturing environment where every colleague can thrive.

Values

• Do the right thing: We act with integrity and are proudly committed to going above and beyond in service of our clients and the support we provide our communities.
• Always curious: We continuously seek new ideas and knowledge so we’re one step ahead of our clients’ needs. We look for inspiration everywhere and encourage experimentation, recognising that this is how we create brilliant solutions for brighter futures.
• Embrace challenge: We aim high to transform our potential into meaningful outcomes. With ambition as our driving force and a steadfast commitment to growth, we succeed for the good of every generation.
• Stronger together: Combining our diverse talents, we accomplish more collectively than we ever could do alone. We speak openly, actively listen, and support each other, and constructively challenge and embrace new ideas. We seek empowerment and demonstrate ownership and trust, with the confidence to make impactful decisions.

Core Benefits

• Holiday: 182 hours (26 days)
• Quilter Incentive Scheme: All employees are eligible to participate in incentive scheme, to incentivise business performance and their contribution.
• Pension Scheme: A non-contributory company pension scheme that can be boosted through personal contributions.
• Private Medical Insurance: Single cover as standard with options to increase cover to include your partner or children.
• Life Assurance: 4x your salary.
• Income Protection: 75% of salary, less state benefits, payable after 26 weeks of absence.
• Healthcare Cash Plan: Jersey employees only.

In addition to our core benefits, we offer a range of flexible benefits to UK employees that you can choose from and pay for conveniently via a salary deduction.