Senior PKI Engineer in London

Senior PKI Engineer in London

London Full-Time 60000 - 80000 £ / year (est.) No home office possible
Sopra Steria Ltd

At a Glance

  • Tasks: Lead PKI engineering and governance for secure, mission-critical environments.
  • Company: Join Sopra Steria, a leader in delivering innovative solutions for the Defence sector.
  • Benefits: Competitive salary, car allowance, medical insurance, and generous annual leave.
  • Other info: Full-time on-site role with opportunities for professional growth.
  • Why this job: Shape the future of PKI services and make a real impact on national security.
  • Qualifications: Strong PKI knowledge and experience in secure environments required.

The predicted salary is between 60000 - 80000 £ per year.

Are you an experienced PKI Engineer ready to take greater ownership of complex, secure infrastructure? Sopra Steria is delivering a unique solution from the ground up for the Defence sector, integrating infrastructure and applications within highly secure, mission‑critical environments. This is an opportunity to play a leading role in shaping PKI services for a nationally significant programme, influencing design decisions, strengthening governance, and ensuring secure certificate services operate at scale. In this role, you will act as a senior technical specialist for PKI, providing engineering leadership across certificate management, certificate template design, HSM administration, PKI governance, and lifecycle processes.

Please note this role requires the person to be on site full time in our office.

What you will be doing:

  • Lead PKI engineering and operational activities across secure enterprise environments.
  • Own the design, review, deployment, and governance of certificate templates.
  • Provide senior technical guidance on certificate management across Windows, Linux, web‑based platforms, enterprise applications, and infrastructure services.
  • Work with architects, engineers, security teams, and application owners to define PKI integration requirements and ensure appropriate certificate usage.
  • Lead the definition, documentation, and ongoing maintenance of PKI governance artefacts, including the Certification Policy Statement.
  • Drive certificate lifecycle management processes, including issuance, renewal, revocation, auditing, reporting, and governance.
  • Administer and provide technical oversight of HSM environments, including operational processes and security controls.
  • Identify opportunities to improve PKI processes, automation, resilience, and operational maturity.
  • Act as an escalation point for complex PKI issues across project and operational workstreams.
  • Provide technical assurance that PKI services align with security, regulatory, and programme requirements.

What you will bring:

  • Strong knowledge of DPKI / PKI within enterprise or secure environments.
  • Proven experience in PKI engineering, administration, and architecture support.
  • Experience providing technical leadership or acting as a senior escalation point for PKI‑related activities.
  • Hands‑on experience with HSMs, ideally Thales HSM products.
  • Strong experience in certificate management, certificate template design, and certificate template deployment.
  • Experience managing certificate templates across enterprise‑scale environments.
  • Good understanding of certificate lifecycle management, PKI governance, and policy documentation.
  • Ability to work with infrastructure, application, security, and architecture teams to translate requirements into secure PKI solutions.
  • Experience improving PKI processes, documentation, controls, or operational maturity.

It would be great if you had:

  • Experience supporting enterprise applications and infrastructure with PKI integration requirements.
  • Experience working in complex, secure, regulated, or Defence environments.
  • Experience contributing to PKI strategy, service design, automation, or operational transformation.
  • Experience mentoring engineers or providing technical direction within a project or service team.

Employment Type: Permanent

Location: Hertfordshire

Security Clearance Level: Eligible for Developed Vetting (DV)

Salary: Competitive, based on experience

Benefits: £5,400 car allowance, medical insurance, flex fund to purchase additional benefits, 25 days annual leave with the choice to buy extra days, life assurance, and 6% pension.

Senior PKI Engineer in London employer: Sopra Steria Ltd

Sopra Steria is an exceptional employer, offering a dynamic work environment in Hertfordshire where you can take ownership of complex, secure infrastructure within the Defence sector. With a strong focus on employee growth, we provide comprehensive benefits including a competitive salary, car allowance, medical insurance, and opportunities for professional development, all while fostering a collaborative culture that values innovation and technical leadership.
Sopra Steria Ltd

Contact Detail:

Sopra Steria Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior PKI Engineer in London

✨Network Like a Pro

Get out there and connect with folks in the industry! Attend meetups, conferences, or even online webinars. The more people you know, the better your chances of landing that Senior PKI Engineer role.

✨Show Off Your Skills

When you get the chance to chat with potential employers, don’t hold back! Share your hands-on experience with HSMs and certificate management. Let them see how your expertise can make a difference in their secure environments.

✨Ask Smart Questions

During interviews, ask about their current PKI challenges and how they envision the future of their PKI services. This shows you're not just interested in the job, but also in contributing to their mission-critical projects.

✨Apply Through Our Website

Don’t forget to apply through our website! It’s the best way to ensure your application gets the attention it deserves. Plus, we love seeing candidates who are proactive about their job search.

We think you need these skills to ace Senior PKI Engineer in London

PKI Engineering
Certificate Management
Certificate Template Design
HSM Administration
PKI Governance
Lifecycle Management
Technical Leadership
Operational Oversight
Security Controls
Certificate Lifecycle Management
Policy Documentation
Collaboration with Infrastructure Teams
Process Improvement
Automation

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Senior PKI Engineer role. Highlight your experience with PKI engineering, certificate management, and HSM administration. We want to see how your skills align with what we're looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about PKI and how you can contribute to our mission in the Defence sector. Keep it concise but impactful – we love a good story!

Showcase Relevant Experience: When filling out your application, be sure to showcase your hands-on experience with DPKI/PKI in secure environments. Mention any specific projects or achievements that demonstrate your expertise and leadership in this area.

Apply Through Our Website: Don't forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at StudySmarter!

How to prepare for a job interview at Sopra Steria Ltd

✨Know Your PKI Inside Out

Make sure you brush up on your knowledge of PKI, especially in secure environments. Be ready to discuss your hands-on experience with HSMs and certificate management, as well as any specific projects you've led that relate to PKI governance.

✨Showcase Your Leadership Skills

Since this role involves providing technical leadership, prepare examples of how you've guided teams or mentored engineers in the past. Highlight situations where your input influenced design decisions or improved PKI processes.

✨Understand the Defence Sector

Familiarise yourself with the unique challenges and requirements of working in the Defence sector. Be prepared to discuss how your experience aligns with the needs of secure, mission-critical environments and how you can contribute to their PKI strategy.

✨Prepare for Technical Scenarios

Expect to tackle technical questions or scenarios during the interview. Practice explaining complex PKI concepts clearly and concisely, and be ready to demonstrate your problem-solving skills with real-world examples from your previous roles.

Senior PKI Engineer in London
Sopra Steria Ltd
Location: London

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