Lead Technical Architect at Dentsu in London, England, United Kingdom

Lead Technical Architect Location: London Job Description: We are seeking an experiencedEnterprise Architect to lead the technology architecture across our e-commerce, digital,dataand customer platformsduring a period of significant growth. Our ambition is todouble online revenue within five years, requiring a scalable,secure,resilientandperformanttechnology ecosystem that supportscommerce at scale,rapid innovation, exceptional customer experiences,data driven insight,and operational excellence. This role will define and lead theend-to-end technology strategy across digital commerce, data analytics, CRM, loyalty,marketingand workflowplatforms, ensuring the architecture enablesrevenuegrowth, personalisation, and efficient operations at scale. TheLeadArchitect will work closely with engineering, product, data,operationsand commercial leaders to ensure technology investments deliver measurable business outcomes. Key Responsibilities Technology Strategy & Enterprise Architecture Define and own theenterprise architecture strategy for digital commerce, customerplatformsand data ecosystems. Develop atarget-state architecture and multi-year technology roadmapaligned to the company’s revenue growth ambitions. Ensure the technology landscape supportsscalability, resilience and performance at significantly increased traffic and transaction volumes. Establish architectural principles acrosscloud infrastructure, integration, data platforms, security and composable commerce. Digital Commerce & Customer Platforms Lead architecture across the fullcustomer and commerce ecosystem, including: Digital storefronts and experience platforms Commerce platforms and checkout systems Order management and fulfilment platforms Product information management and content platforms Payments,fraudand identity services CRM and customer engagement platforms Loyalty and customer value programmes Marketing technology and personalisation tools Ensure the architecture enables: Omnichannel retail experiences (click & collect, ship-from-store, endless aisle) Marketplace and partner integrations Rapid experimentation and feature delivery Personalised customer journeys across channels Data, Analytics & Customer Insight Define thedata architecture supporting digital,commercialand operational decision making. Enable amodern data platformsupporting: Real-time and batch data processing Customer data platforms Advanced analytics and experimentation AI-driven personalisation and merchandising Ensure data architecture supportssingle customer view,segmentationand lifetime value management. Partner with data leaders to embeddata-driven decision making across digital,marketingand operations. CRM, Loyalty & Customer Engagement Define the architecture supportingcustomer relationship management and loyalty programmes. Enable capabilities such as: Customer identity and profile management Loyalty and rewards platforms Campaign orchestration and marketing automation Personalised communications and offers Ensure customer data flows seamlessly acrosscommerce, marketing,serviceand analytics platforms. Operational Excellence & Platform Efficiency Drive architecture that supportsoperational excellence across digital and retail operations. Enable technologies that improve: Order fulfilment andlogisticsefficiency Inventory visibility across channels Automation of operational workflows Monitoring,observabilityand operational resilience Promote platform architectures that increaseengineering productivity,reliabilityand costefficiency, where applicable, powered by AItooling. Engineering& Delivery Alignment Work closely withengineering and product teamsto ensure architecture is practical,scalableand aligned with agile delivery. Promoteplatform engineering, reusableservicesand automation. Support the adoption ofmodern architecture patterns, including: API-first architectures Event-driven systems Microservices and composable platforms Cloud-native infrastructure Architecture Governance Establish and leadarchitecture governance and design authorityacross digital,dataand customer platforms. Ensure alignment with enterprise standards forsecurity, privacy, regulatorycomplianceand resilience. Provide architectural oversight across transformation programmes and major technology investments. Enable theinnovation capability inexploring future-state architecture to support growthpilots Stakeholder Leadership Act as atrusted advisor to executive leadershipon technology strategy. Partner with leaders acrossdigital, marketing, data, operations,merchandisingand supply chain. Translate complex technology decisions into clearbusiness impact and commercial outcomes. Skills & Experience Essential Extensive experience as anEnterprise Architect or Principal Architectin alarge-scale retail, digital or e-commerce environment. Proven experience designingenterprise technology architectures supporting high-volume digital commerce platforms. Strong understanding ofmodern architecture patterns, including: Cloud-native architectures API-first and microservices Event-driven architectures Composable commerce ecosystems Experience designing architectures across: E-commerce platforms Data and analytics platforms CRM and marketing technologies Loyalty and customer engagement platforms Strong understanding ofcustomer data,personalisationand marketing technologies. Experience integrating digital platforms withERP, OMS,PIMand supply chain systems. Desirable Experience leadingmajor retail digital transformation programmes. Experience withSalesforce Commerce Cloud. Experiencewithcloud platforms (AWS,Azureor GCP). Experiencewithmodern data platforms,CDPsand AI-driven analytics. Leadership & Behavioural Attributes Strategic thinker able to translatebusiness growthobjectivesinto technology strategy. Strongsystems thinkerwith the ability to connect complex enterprise landscapes. Excellent communicator capable of influencingexecutive stakeholders and engineering teams. Pragmatic architect balancinginnovation with delivery reality. Passion forcustomer experience, data-driven decision making and digital retail transformation. Success Measures Success in this role will be measured by: Delivery of ascalable architecture supporting 2× e-commerce revenue growth Improvedcustomer personalisation and engagement Increaseddata-driven decision making across digital and marketing More efficient and resilientdigital and operational platforms Fasterdelivery of new digital capabilities and customer experiences About Dentsu Dentsu is an integrated growth and transformation partner to the world’s leading organisations. Founded in 1901 in Tokyo, Japan, and now operating in approximately 120 countries and regions, we bring together the power of a global network of leadership brands to deliver impactful, end-to-end growth solutions. Through our client promise, Innovating to Impact, we drive growth through integrated services across Media, Customer Experience Management (CXM), and Creative. Our business transformation (BX) mindset, combined with a focus on experience transformation (EX), drives sustainable growth for brands, people, and society. Our commitment to innovation, collaboration, and diversity enables us to continuously evolve, pushing boundaries while delivering measurable impact in a fast-changing world. Inclusion and Diversity At Dentsu, we embrace diversity and inclusion, valuing the unique perspectives and contributions of every individual. We believe that diversity fuels creativity and innovation, benefiting our employees, partners, and communities. We welcome applications from all individuals, regardless of race, ethnicity, nationality, religion, gender, gender identity, sexual orientation, age, disability, marital status, or any other protected characteristic. Beyond recruitment, we strive to create an environment where everyone feels respected, supported, and empowered to bring their authentic selves to work. We recognize the importance of work-life balance and are open to discussing flexible working arrangements for all roles. If you need reasonable adjustments due to a disability or medical condition during our recruitment process, please contact us at accommodations@dentsu.com, quoting the reference number of the role that you are applying for. Your needs will be handled with respect and confidentiality to ensure an inclusive and accessible experience. #LI-Hybrid #LI-Dentsu Location: London Brand: Merkle Time Type: Full time Contract Type: Permanent Additional Locations: UK-Remote