We're looking for a Senior Data Engineer to take a leading role in designing, developing, and optimizing the data pipelines and models that power Ozone's digital advertising products. You'll work closely with Product, Engineering, and Data Science to define how data is structured, transformed, and leveraged for product innovation and performance insights. Reporting to the Data Engineer Manager, you'll operate with a high degree of autonomy, influencing architecture, ensuring technical excellence, and integrating advancements such as Ozone's agentic development framework into product data development.
Responsibilities
* Lead the design and development of complex, product-aligned data pipelines and transformations in dbt Cloud and BigQuery, ensuring scalability and performance across multiple product areas.
* Act as the data lead within cross-functional Scrum teams, shaping data requirements, defining modeling strategies, and ensuring technical feasibility from discovery through delivery.
* Drive data discovery and technical scoping during product ideation, advising on the best ways to leverage data for new features, measurement, and product optimization.
* Own end-to-end quality and scalability of product data solutions, implementing frameworks that ensure accuracy, efficiency, and long-term maintainability.
* Proactively identify cross-product dependencies, lead alignment sessions with the wider Data Engineering team, and contribute to defining shared data standards.
* Champion best practices in testing, observability, and documentation, introducing improved frameworks or automation where possible.
* Integrate the advancement of the agentic development framework into product data development, driving automation and continuous improvement in data workflows.
* Contribute to the strategic evolution of Ozone's data stack, evaluating new technologies and mentoring other engineers in modern data practices.
* Work with cross-functional teams to deliver data-driven product insights and performance tracking.
Qualifications
* 5+ years of experience in a Data Engineering or similar role.
* Strong command of SQL and proven expertise building dbt models and large-scale data transformations.
* Deep experience with BigQuery and cloud-based data environments (GCP preferred).
* Solid understanding of data modeling, ELT/ETL, and analytics engineering best practices.
* Experience leading technical workstreams within cross-functional Scrum teams.
* Proficiency with version control (Git) and workflow orchestration tools (e.g., Airflow).
* Familiarity with agentic frameworks, data quality, and observability practices.
* Excellent problem-solving and communication skills, with the ability to explain complex concepts clearly.
* Demonstrated ability to mentor others and contribute to continuous improvement across the team.
Benefits
* 30 days annual leave plus your birthday day off.
* Competitive AVIVA pension scheme, with employer contributions up to 4%.
* Medical cash plan - cash back on a range of health benefits incl. dental, optical, physio etc.
* Private Medical Insurance with Vitality - includes unlimited virtual GP consultations and Mental Health support in addition to cover for illness and a number of other incentives and benefits.
* Income protection - to support you financially following serious illness or injury. This pays up to 70% of your salary for up to 5 years.
* Group life assurance - tax free lump sum of 4x salary paid to your chosen beneficiaries.
* Employee Assistance Programme - range of mental wellbeing support including life coaching and crisis support.
* Rewards and discounts via interactive apps to make savings at your favourite brands, including gym discounts and savings on holiday and travel.
* Hybrid working - mix of office and home working.
Created by our team, our values embody the way we work at Ozone:
Our values
* We can build a better future for our industry.
* We are building a future for digital advertising in which audiences, publishers and brands can thrive. Where high quality, editorially governed content has a successful and sustainable future.
* Everyone can make a difference.
* It takes a lot of different people, ideas, and hard work to turn big ambitions into reality. Everyone's input is needed, and everyone's contribution is valued.
* Together is the best way.
* Born from collaboration, we believe team-working is the best way, and our natural instinct is to help. Success is a team effort, so that's how we work internally, and with all our partners too.
* Be open, authentic, and human.
* Positive progress comes from being transparent, telling it how it is, and keeping things simple. That's the environment we like to create, and we warmly welcome people into it.
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