Title: Staff/Principal Data EngineerLocation: London, United KingdomCategory: Tech & ProductEmployment Type: Full-TimeReporting to: Director of EngineeringRoleOne of our clients is hiring a Staff/Principal Data Engineer to serve as the highest technical authority within their Data Platforms organisation.This role defines the long-term technical vision and architectural direction for a modern, large-scale data ecosystem supporting 50+ engineers. You will partner closely with senior engineering leadership to ensure scalable, secure, and high-performance data systems that power global operations.About the CompanyOne of our clients is Just Eat Takeaway.com (JET), a leading global online delivery platform.The organisation connects tens of millions of customers with hundreds of thousands of restaurant, grocery, and convenience partners worldwide. Its technology ecosystem enables everyday convenience at global scale through advanced platform engineering and data innovation.Your RoleAs Principal Engineer – Data Platforms, you will own the technical strategy and reference architecture for the company’s modern Data Platform (Mobius), spanning data warehousing, data lake, streaming systems, and governance tooling.You will operate at both strategic and hands-on levels — guiding architectural direction while directly contributing to complex technical challenges. This role is central to improving scalability, developer experience, platform reliability, and long-term data infrastructure evolution.You will mentor Senior and Staff Engineers, establish technical standards, and influence executive stakeholders across engineering and product.Key ResponsibilitiesTechnical Strategy & ArchitectureDefine and evolve the long-term technical vision and roadmap for the Data PlatformGovern reference architecture across data warehousing, data lake, streaming, and governance layersEnsure scalability, reliability, security, and performance at global scaleHands-On Technical LeadershipSolve highly complex engineering challengesProvide code-level guidance for critical platform componentsEvaluate, prototype, and adopt new data technologiesPlatform & Engineering ExcellenceEstablish standards for code quality, observability, and Infrastructure-as-CodeDrive cloud-native architecture across AWS and/or GCPImprove developer experience, velocity, and self-service capabilitiesMentorship & Organisational ImpactMentor Senior and Staff EngineersRaise technical standards across 50+ engineersAlign engineering, product, and executive stakeholders on architectural decisionsPromote long-term, future-proof engineering practicesYour ProfileExtensive experience operating at Principal, Staff, or equivalent senior technical leadership levelDeep expertise across the modern data stack (Snowflake, BigQuery, Delta Lake, Iceberg, Kafka, Flink)Proven experience designing scalable, self-service data platformsStrong cloud-native architecture experience (AWS and/or GCP)Expertise in Infrastructure-as-Code (Terraform, Ansible)Advanced proficiency in Python, Scala, or GoExperience with data transformation frameworks (Airflow, dbt)Strong understanding of distributed systemsKnowledge of data governance, lineage, and observability tooling (Datadog, Prometheus, OpenTelemetry)Understanding of MLOps and ML lifecycle support within data platformsExceptional communication and stakeholder alignment skillsAbility to balance strategic thinking with hands-on executionWhat We OfferHybrid working model (London or Amsterdam)Opportunity to define the architecture of a global-scale data platformHigh-impact leadership role within a large engineering organisationExposure to cutting-edge cloud and streaming technologiesFast-paced, growth-oriented, and collaborative engineering cultureInclusive and diverse workplace environmentInclusion, Diversity & BelongingOur client is committed to fostering an inclusive culture where diverse perspectives are valued and every team member feels empowered to contribute and grow.Apply Now