Quilter
Infrastructure Security Engineer
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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
- Contract type: Permanent
The Security Engineer is responsible for acting as a practical technical bridge between the security and infrastructure functions, helping ensure security requirements are translated into effective, supportable technical solutions across core infrastructure services.
Reporting to the Deputy Head of Infrastructure, the role supports the prioritisation and delivery of security improvements across identity, endpoint and infrastructure platforms, with particular focus on Microsoft 365 and Azure Services.
This is a hands-on role for someone who is diligent, security-focused and technically credible.
The role must be able to balance security expectations with operational reality, work through competing priorities, and deliver meaningful control improvements in live environments.
Responsibilities
Security and infrastructure interface
- Act as a key technical liaison between security and infrastructure for relevant engineering activity
- Translate security requirements, findings, audit points and technical risk into clear technical actions and delivery plans.
- Help ensure infrastructure change and operational activity align with the organisation’s security expectations and standards.
- Escalate risks, blockers or technical weaknesses where needed.
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Secure infrastructure delivery
- Deliver and support technical security improvements across core infrastructure platforms and services.
- Implement and maintain controls relating to identity, endpoint, device management and privileged access.
- Support the hardening, configuration and secure operation of Microsoft and Azure services.
Identity and access security
- Support the secure management and improvement of Microsoft 365 and Azure environments.
- Assist with privileged access, conditional access, authentication controls, role design and directory hygiene.
- Help reduce identity-related risk through practical technical remediation and improvement.
Endpoint and device security
- Support secure device management through Microsoft Intune and related endpoint tooling.
- Assist with device configuration, compliance policy enforcement, hardening baselines and security settings deployment.
- Work with infrastructure and security teams to improve endpoint resilience, consistency and visibility.
- Co-ordinate security vulnerability remediation across Infrastructure services.
Prioritisation and execution
- Help manage and sequence technical security priorities, technical debt and infrastructure security improvements across infrastructure workloads.
- Work with the Deputy Head of Infrastructure and security stakeholders to ensure the most important risks and control improvements are addressed first.
- Ensure work is progressed in a disciplined and traceable way rather than handled informally or inconsistently.
About You
We are seeking a hands-on Infrastructure Security Engineer to act as a key technical bridge between security and infrastructure.
Reporting to the Deputy Head of Infrastructure, this role will support the prioritisation and delivery of technical security improvements across core Microsoft and infrastructure services, with particular focus on Microsoft 365 and Azure. The role requires strong practical engineering experience, sound judgement, attention to detail and a clear security focus.
- Strong working knowledge of Microsoft 365, Azure, Endpoint security and identity/access controls.
- Good understanding of infrastructure security risks and the controls used to manage them.
- Strong practical troubleshooting and delivery skills.
- Ability to balance security expectations with operational reality.
- Strong organisational discipline, attention to detail and follow-through.
- Good written and verbal communication skills when working across technical teams.
- In‑depth knowledge of IT risk taxonomies demonstrating the ability to consistently classify and articulate technology risks.
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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.
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