Lead Solution Architect - Defence & Security Job at PA Consulting (London)

Lead Solution Architect - Defence & Security

Why consider joining our Defence & Security community as an Architecture Managin...

Location

United Kingdom , Bristol

Salary:

Not provided

PA Consulting

Expiration Date

Until further notice

Requirements

Proven experience leading architecture and development teams, delivering impactful, end-to-end solutions for complex client challenges
Strong understanding of the defence sector, with experience across areas such as banking, insurance, payments, or wealth management
Demonstrated ability to shape and communicate architectural strategies across multiple domains (application, business, integration)
Skilled at building trusted relationships with senior stakeholders, translating technical insight into business value
Track record of contributing to business development, including pre-sales, proposal development, and client engagement
Familiarity with architecture frameworks and modelling tools (e.g. UML, ArchiMate), with awareness of emerging trends and technologies
An established network of senior stakeholders within the financial services sector, with a proven ability to nurture and expand relationships that support business development and long-term client partnerships

Job Responsibility

Be part of our management team, helping shape and launch new service propositions while driving strategic business growth
Lead business development initiatives —building trusted client relationships, owning outcomes, and delivering innovative, high-impact solutions
Collaborate with FTSE 100 clients as a respected advisor, guiding them through complex challenges with clarity and creativity
Support your team’s growth through coaching, knowledge-sharing, and creating opportunities for them to thrive

What we offer

Health and lifestyle perks accompanying private healthcare for you and your family
25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days
Generous company pension scheme
Opportunity to get involved with community and charity-based initiatives
Annual performance-based bonus
PA share ownership
Tax efficient benefits (cycle to work, give as you earn)

Fulltime

Lead Solution Architect - Defence & Security

Join a team where you're trusted to shape your own path, manage your time, and i...

Location

United Kingdom , Manchester

Salary:

Not provided

PA Consulting

Expiration Date

Until further notice

Requirements

Proven experience leading architecture and development teams, delivering impactful, end-to-end solutions for complex client challenges
Strong understanding of the defence sector, with experience across areas such as banking, insurance, payments, or wealth management
Demonstrated ability to shape and communicate architectural strategies across multiple domains (application, business, integration)
Skilled at building trusted relationships with senior stakeholders, translating technical insight into business value
Track record of contributing to business development, including pre-sales, proposal development, and client engagement
Familiarity with architecture frameworks and modelling tools (e.g. UML, ArchiMate), with awareness of emerging trends and technologies
An established network of senior stakeholders within the financial services sector, with a proven ability to nurture and expand relationships that support business development and long-term client partnerships

Job Responsibility

Be part of our management team, helping shape and launch new service propositions while driving strategic business growth
Lead business development initiatives —building trusted client relationships, owning outcomes, and delivering innovative, high-impact solutions
Collaborate with FTSE 100 clients as a respected advisor, guiding them through complex challenges with clarity and creativity
Support your team’s growth through coaching, knowledge-sharing, and creating opportunities for them to thrive

What we offer

Health and lifestyle perks accompanying private healthcare for you and your family
25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days
Generous company pension scheme
Opportunity to get involved with community and charity-based initiatives
Annual performance-based bonus
PA share ownership
Tax efficient benefits (cycle to work, give as you earn)

Fulltime

Principal Solution Architect

We’re looking to recruit an SC Cleared Principal Solution Architect for a specia...

Location

United Kingdom , Andover

Salary:

110000.00 - 130000.00 GBP / Year

DataCareers

Expiration Date

Until further notice

Requirements

Proven experience operating at Principal / Lead Solution Architect level
Strong background delivering complex technology solutions in secure environments
Experience working across Central Government and/or Defence sectors
Ability to engage and influence senior stakeholders (including military leadership)
Strong understanding of architecture frameworks and best practices
Experience leading multi-disciplinary teams across full delivery lifecycles
Cloud platforms (Azure and/or AWS)
Secure software development lifecycle and DevSecOps practices
Integration patterns, APIs, microservices
Identity and access management (OAuth, SAML, etc.)

Job Responsibility

Lead the design and delivery of end-to-end solution architectures across complex programmes
Act as a “front door” architect, shaping early-stage ideas and aligning them to architectural standards
Engage with senior stakeholders, including military leadership, to guide decision-making
Drive application modernisation and transformation initiatives
Define architecture principles, standards, and best practices across programmes
Ensure alignment to security, compliance, and governance frameworks
Support pre-sales, bids, and client engagements
Mentor and develop other architects and engineers within the practice

Fulltime

Cloud Security Architect

We are looking for an experienced Security Architect to support our 'Cloud Secur...

Location

India

Salary:

Not provided

Rackspace

Expiration Date

Until further notice

Requirements

Experience with AWS/GCP will be highly advantageous
Proven track record in designing and delivering innovative technology security solutions built on the cloud
Experience of designing secure platforms on the major hyperscalers, AWS, Azure or GCP (GCP preferred)
Demonstrable experience in designing secure cloud-native systems and/or rebuilding an existing system on the cloud with a suitable security posture
Demonstrable experience in the relevant legislation, industry regulations and industry standards such as ISR, EU GDPR, HIPAA, ISO27001, ISO 22301, ISO/IEC 20000-1, ISO 22301, NCEMA, NIST CSF, PCI DSS, Cloud Security Alliance CCM, CIS, OWASP and Cyber Essentials etc.
In-depth knowledge of the Well-architected frameworks and best practices of the major cloud providers
Must have the ability to lead engagements, either directly or as part of a larger programme of work and take ownership for the successful delivery of customer value within budget, time and scope
Acting as a thought-leader, the right candidate is able to concisely and articulately present to both technical and non-technical audiences
You have built specialist and demonstrable cloud security architectural knowledge in the following areas
Account governance, Identity and Access Management (IAM), Asset management and data protection, Infrastructure and platform security, Application security including threat modelling and secure CI/CD, Change management practice and detection capabilities, Boundary defence, Cloud Logging and Monitoring, Continues vulnerability and patch management systems, Incident response and threat mitigation, Cloud backup/recovery and disaster recovery (DR)

Job Responsibility

Engage with customers and the wider Rackspace organization to advise, develop and deliver innovative security solutions leveraging a wide range of public cloud services
Help customers to assess their cloud security posture and to ensure any subsequent cloud design and build is appropriately secured
Be the Subject Matter Expert (SME) to advise and guide customers on their cloud security journey and establish a long-term trusted advisor role
Provide guidance to customers on their cloud security roadmap and assist on defining the right-size cloud security controls
Liaise closely with the customer’s architects and engineers and advise, design and deliver innovative cloud security Proof of Concepts
Evolve existing Rackspace security services, as well as implement new ones, under the ‘Cloud Security Service’ banner
Establish best-practices for the consultancy resulting in standardized engagement models and repeatable ways-of-working
Mentor and train other security architects within the wider Rackspace Security Solutions Architecture community on modern multi-cloud security domains and topics
Evangelize the security cloud-native paradigm through the delivery of blogs, customer presentations and public speaking engagements
Deliver high-quality work to customers as part of consulting engagements that can be delivered through workshops, presentations or security solutions architecture designs

Fulltime

Senior Systems Architect

At Boeing, we innovate and collaborate to make the world a better place. We’re c...

Location

Australia , Brisbane

Salary:

Not provided

Boeing

Expiration Date

Until further notice

Requirements

14+ years of relevant work experience (or equivalent combination of education and experience, e.g., PhD + 9 years, Master + 12 years)
Proven senior-level experience architecting complex systems-oriented solutions in high-security or defence environments
Strong Python development background and domain expertise in LLMs, machine learning, agent development and workflow automation
Applicants must be Australian Citizens to meet Defence security requirements

Job Responsibility

Architectural Guidance - Create and maintain architecture artefacts (requirements, algorithms, interfaces, design docs) for complex AI-enabled systems
AI & Automation - Apply LLM, ML, agent development, and workflow-automation techniques to new and existing defence solutions
Service-Oriented Design - Lead Service Oriented Architecture (SOA) design, definition, and development, ensuring reusable, loosely-coupled services across platforms
Cloud & IaC - Design cloud-based architectures, data-integration flows and implement Infrastructure-as-Code (IaC) (e.g., Terraform) for scalable deployments
Monitoring & Logging - Define and implement monitoring, logging and key-performance-metric frameworks to guarantee reliability and observability
Development Excellence - Steward high-quality, maintainable code (Python required
C++ desirable) and, where needed, front-end components using React/TypeScript.(desirable)
Testing & Reliability - Foster intentional testing methodologies, debugging and performance optimisation throughout the software lifecycle
Mentoring & Collaboration - Guide senior engineers, foster best-practice engineering culture and act as primary liaison with customers, internal stakeholders and international Boeing partners
Continuous Innovation - Stay current with emerging AI, cloud and automation technologies and evaluate their suitability for strategic outcomes

What we offer

Attractive remuneration and annual bonus
Formal mentoring and training as well as on the job learning
Formal reward and recognition program
Access discounts for health insurance, travel and accommodation
Paid study leave, paid parental leave and Defence leave
Salary packaging options available
Health and wellbeing benefits including annual flu vaccinations and Employee Assistance Program
Social and community groups
Competitive base pay and incentive programs
Industry-leading tuition assistance program pays your institution directly

New

Azure Infrastructure Cloud Solution Architect

As an Azure Infrastructure Cloud Solution Architect (CSA) within the Customer Su...

Location

Australia , Canberra

Salary:

Not provided

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Computer Science, Information Technology, Engineering, Business, Liberal Arts, or related field AND 4+ years experience in cloud/infrastructure technologies, information technology (IT) consulting/support, systems administration, network operations, software development/support, technology solutions, practice development, architecture, and/or consulting OR equivalent experience
Technical Expertise: Deep experience across Azure Infrastructure, including: Virtual Machines, compute, and scaling
Networking (hybrid connectivity, security architectures)
Storage, backup, and disaster recovery (ASR / Backup)
Monitoring and observability (Azure Monitor / Insights)
Governance and compliance (Azure Policy, RBAC, landing zones)
Strong understanding of hybrid cloud and sovereign architectures
Experience designing production-grade, secure enterprise environments
Security & Compliance (Critical for FDI): Experience working with regulated environments (Government / Defence preferred)
Knowledge of: ISM (Information Security Manual)

Job Responsibility

Secure Platform Delivery & Execution: Lead the deployment and stabilization of Azure infrastructure environments (landing zones, networking, governance frameworks)
Remove blockers impacting mission-critical delivery milestones
Ensure environments meet security, compliance, and accreditation requirements (ISM, PSPF)
Support and resolve technical incidents in partnership with Microsoft Support and Engineering
Architecture & Cloud Platform Design: Design scalable, secure Azure infrastructure architectures aligned to Government and Defence standards
Build repeatable platform patterns for multi-workload environments (Defence platforms, shared services, etc.)
Enable transition from pilot to production-grade, enterprise-scale deployments
Support hybrid and sovereign scenarios using Azure-native and hybrid capabilities
Consumption & Adoption Growth: Enable workload onboarding and accelerate Azure usage through platform readiness
Reduce friction between design and deployment to drive sustained consumption growth

Fulltime

Network Solution Architect

At Boeing, we innovate and collaborate to make the world a better place. We’re c...

Location

Australia , Brisbane

Salary:

Not provided

Boeing

Expiration Date

Until further notice

Requirements

Strong experience designing, architecting, and implementing multi-site networks (LAN, WAN)
Deep understanding of switching, routing, VRF, VLANs, subnetting, and IP schema design (equivalent to Cisco CCNP level)
Experience with Palo Alto NGFW appliances and features such as zoning, vSys, security profiles, and hardening (PCNSA/PCNSE level)
Experience project managing the design and implementation of complex, high-assurance security infrastructure
Solid knowledge of network security hardening techniques
Understanding of network integration with hypervisors and Fibre Channel storage
Systematic and logical problem-solving skills
Demonstrated ability to produce clear, concise technical and project documentation
Ability to lead engagements with third-party suppliers to inform solution design, develop cost estimates, and coordinate implementation
Strong collaboration and communication skills

Job Responsibility

Designing, implementing, configuring, and sustaining complex network, firewall, cross-domain, and security infrastructure
Problem resolution, technical support for system delivery, and ongoing monitoring of system performance to support capacity planning and disaster recovery
Leading the design, procurement, configuration, implementation, and sustainment of networking and firewall infrastructure
Leading the end-to-end design and implementation of multi-domain gateway infrastructure for the Secure Networks team

What we offer

Flexible working options
Study assistance
Salary packaging
Employee Incentive Program
Global opportunities

Fulltime

Principal Technical Architect

Location

United Kingdom , Hemel Hempstead

Salary:

Not provided

Social Value Portal Ltd

Expiration Date

Until further notice

Requirements

3 years' experience of delivery within a secure Defence (preferred) or @3 environment
Excellent leadership skills, with experience having managed complex technical solutions, with engineering teams of at least 20 plus resources
5+ years' experience in a senior technical role either managing a technical service provision or as a senior architect working within projects and programs
Outstanding communications skills with the ability to bridge the gap between technical teams and non-technical audiences
Experience managing escalations effectively
Experience in managing and supporting major IT transformations (from a technical, not project management perspective)
Knowledge and experience of IDAM solutions
Demonstrable experience in introducing automation
Experience working in a highly secure environment with complex security requirements

Job Responsibility

Providing technical leadership
Providing fully traceability for contracted requirements and ensuring the solution is fit for service
Managing the technical leads within each separate workstreams
Providing advice and guidance to development teams as they go about designing and engineering the new solutions
Bridging the gap between the technical teams and wider business
Dealing with escalations
Interfacing with the Design Authority
Interfacing with the client to ensure effective decisions are made concerning all aspects of the technical solution
Supporting with the recruitment of technical resources and technical resource management
Provides advice and guidance to development teams on architectures and application designs Identifies and promotes best practice, including standards, frameworks and documentation

Select Country

Lead Solution Architect - Defence & Security

PA Consulting

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 19, 2026

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Lead Solution Architect - Defence & Security

Lead Solution Architect - Defence & Security