Lead Engineer

Lead EngineerFulltime | £61,992.00 - £72,324.00 (dependent on experience)OSHQ - HybridJoin our Cloud Platform team as a Lead Engineer and help design, build, and evolve our Azure cloud platform, with Azure Landing Zones at its core.This is a hands on leadership role where you'll play a key part in building a secure, scalable, and well governed cloud foundation - one that helps our product teams move quickly, experiment safely, and deliver great outcomes for our customers.You'll set the technical direction for our Azure platform, lead the evolution of our landing zones, and act as a trusted sounding board across engineering, security, and architecture. You'll work closely with a small, supportive team of Engineers and Senior Engineers, providing the platform that underpins our cloud hosted systems and enables development teams to do their best work.If you enjoy combining deep technical expertise with mentoring, collaboration, and real world impact, we want to hear from you.Please note that due to the nature of this work - this role is conditional on holding or subsequently passing National Security Vetting SC Clearance prior to appointment.What you'll be doingOwn the design and evolution of Azure Landing Zones aligned to Microsoft Cloud Adoption Framework and enterprise good practicesDefine and enforce platform standards for networking, identity, security, governance, and cost managementBuild and maintain infrastructure as code (e.g. Bicep, Terraform) to deliver repeatable, self service platform capabilitiesOwn core Azure services including Management Groups, Subscriptions, Azure Policy, RBAC, networking (hub and spoke), and monitoringEmbed security by design, including identity, zero trust principles, logging, and threat protectionPartner with application and product teams to enable smooth onboarding onto the platformAct as a technical leader and mentor for other cloud platform engineersInfluence cloud strategy and roadmap, balancing long term architecture with pragmatic deliverySupport platform operations, reliability, and continual improvementWhat we're looking forStrong experience as a Senior / Lead Cloud or Platform Engineer, ideally in Azure first or Azure centric environmentsDeep understanding of Azure core services, especially:Entra ID (Azure AD), RBAC, Privileged Identity ManagementManagement Groups, Subscriptions & Azure PolicyAzure networking (vNets, hub and spoke, Private Endpoints, Firewalls, Express Route)Logging, monitoring, and cost managementStrong theoretical knowledge and practical experience in Infrastructure as Code (Bicep, Terraform, ARM)Practical experience embedding cloud security and governance at scaleEnjoy working collaboratively across engineering, architecture, and securityAble to explain complex cloud concepts in clear, approachable ways to a wide audienceDesirableHands on delivery of Azure Landing Zones in enterprise scale environmentsAzure certifications such as AZ-104, AZ 305, AZ 400, AZ 500 & AZ-700Experience enabling CI/CD for platform servicesExperience in provisioning Virtual Machine images using Image Builder / Packer and Desired State Configuration to security harden themKnowledge of Enterprise Azure Policy as Code (EPAC)Familiarity with FinOps or cloud cost optimisation practicesWhat's important to usWhatever your background, we value strong fundamentals and a positive mindset:Proficient with source control systems and editors/IDEsComfortable programming in a contemporary object oriented languageA solid grasp of cloud computing principlesPassion for mentoring, learning, and sharing knowledge with othersCuriosity and enthusiasm for keeping your skills up to dateThriving in an agile, collaborative environmentOur PrinciplesAt OS, how we work matters just as much as what we deliver. Throughout our hiring process we will assess competence assessing alignment in how you:Clear the path - Cut the noise, simplify and remove blockers so work can move at paceSeek the story - Listen fully, build understanding, fact check assumptions and speak upDo what matters - Focus on value, make deliberate stop/start/continue decisions, and recognise the contribution of othersThe RewardsWe want you to love what you do and feel supported to do your best work.Our benefits include:Competitive salary and pension (OS contribute up to 12.07%)Performance related bonus (where applicable)28 days annual leave plus bank holidays (increasing with service)Enhanced family leave, including paid partner leaveHybrid and flexible working optionsLearning and development support, coaching and mentoringFree subscription to OS Maps and access to wellbeing supportVolunteering leave and matched fundraisingInterview ProcessStage 1 - Microsoft Teams Introduction (approx. 20mins)Stage 2 - Competency based Interview (in person at OSHQ) w/c 10th August 2026Stage 3 - Introduction with Chief Technology Officer or Head of EngineeringLocation & Working PatternWe embrace a hybrid working model at OS, because we believe in flexibility and balance. You'll be based at our fantastic HQ in Southampton, Hampshire, where you'll spend 50% of your working week collaborating face-to-face with colleagues. It's all about combining the best of both worlds connection and autonomy to help you thrive.SecurityPlease be advised that this role will require additional security vetting.OS conducts pre-employment checks for anyone made an offer of employment, including identity, right to work, employment history and criminal record checks (via Disclosure & Barring Services (DBS).Closing date: Sunday 9 th August 2026 at 23:59pmInclusion at OSResearch indicates that women, individuals with disabilities, LGBTQ+ community members, neurodiverse individuals, and people from ethnic minority backgrounds often hesitate to apply for jobs unless they meet every single qualification. At Ordnance Survey, we are dedicated to fostering a diverse, inclusive, and genuine workplace where everyone can thrive.If you're enthusiastic about this role but your experience doesn't perfectly match every qualification in the job description, we encourage you to apply anyway. You might be the ideal candidate for this or other roles within Ordnance Survey.We are happy to consider any reasonable adjustments that people may need during the recruitment process, and you will be asked whether you require any during the application process.Skills required for this role:Computer Coding, Leadership, Production Services, Resilience Training, Software Development, Software Engineering, Technical Leadership, Waterfall Model, Web DevelopmentTPBN1_UKTJ