Senior Data Engineer (Data and AI) at Fifty-Five | GB | Rezi

Senior Data Engineer (Data and AI) at Fifty-Five

Senior Data Engineer (Data and AI)

Fifty-Five · GB

Yesterday

Senior Data Engineer (Data and AI)

Fifty-Five · GB

2 days ago
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About the Role

Design and deliver data pipelines, platforms, and AI applications on Google Cloud to drive client decision-making. Engineers have technical ownership and lead projects, collaborating with consultants and data scientists. The role involves combining SQL, Python, and cloud engineering with AI tools to build high-quality, production-ready systems.

Responsibilities

  • Design, build, and operate scalable data pipelines, data models, and end-to-end solution architectures on GCP.
  • Own technical delivery from scoping to production, including design decisions, risk management, and communication of trade-offs.
  • Ensure quality through rigorous validation, automated testing, observability, and data quality controls, leading diagnosis and resolution of production issues.
  • Design and build AI applications for clients and internal teams, such as LLM agents on Google Cloud.
  • Utilize agentic coding tools to build faster and improve testing, critically checking output and sharing learnings.
  • Collaborate with clients, consulting, and data science teams to clarify requirements and translate business needs into pragmatic designs.
  • Raise engineering standards through design and code reviews, testing practices, and clear documentation.

Requirements

  • Excellent SQL and strong Python skills.
  • Proven experience designing, building, and operating reliable data pipelines, data models, and cloud platforms (GCP preferred, AWS or Azure also welcome).
  • Experience with transformation and orchestration tooling such as dbt, Airflow, or Dataform.
  • Strong software engineering practices: Git-based workflows, code review, automated testing, and CI/CD.
  • Hands-on experience building with LLMs (Gemini or similar), including agents, connecting models to data and APIs, and evaluating outputs.
  • Ability to break down ambiguous problems, understand business challenges, make well-reasoned decisions, and prototype ideas.
  • Excellent client-facing communication skills and confidence leading delivery independently.
  • Ability to manage multiple client projects simultaneously and re-prioritize as client needs change.

Skills

  • SQL
  • Python
  • Google Cloud Platform (GCP)
  • BigQuery
  • dbt
  • Airflow
  • Dataform
  • LLM agents
  • Gemini
  • Google's ADK
  • Claude Code
  • Codex
  • Git-based workflows
  • Automated testing
  • CI/CD
  • Infrastructure as code (Terraform)
  • Cloud IAM
  • Applied data science
  • Looker
  • Power BI

Location

  • London
  • Hong Kong
  • New York
  • Shanghai

Work Type

  • Remote (part of the week)

Experience Level

  • Technical lead

Benefits

  • Multicultural, dynamic, and fast-growing team environment
  • Continuous and certified training on digital ecosystem and technologies
  • Private medical coverage through AXA
  • Transport for London monthly travel card allowance
  • Flexibility to work remotely for part of the week
  • 25 days holiday per year, in addition to UK bank and public holidays
  • Company pension plan
  • Company-sponsored sporting and social activities
  • Monthly Codecademy subscription (reimbursable)

About the Company

  • Part of The Brandtech Group, fifty-five is a data company helping brands collect, analyse and activate their data across paid, earned and owned channels to increase their marketing ROI and improve customer acquisition and retention.
  • Headquartered in Paris with offices in London, Hong Kong, New York and Shanghai.
  • Certified Google Partner company.
  • Named by Deloitte as one of the fastest-growing tech firms in Europe.

Equal Opportunity

  • fifty-five encourages diversity and is committed to guaranteeing equal treatment of all applications, regardless of gender, age, origin, sexual orientation, state of health or political or religious opinion.