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Lead Data Engineer

Immersum
City of London
1 week ago
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Job Title: Lead Data Engineer (leading a team of 4).

Salary: £100,000 – £130,000 + benefits

Location: West London - Hybrid (3 days p/w in-office)

Tech: AWS, Snowflake, Airflow, DBT, Python


The Company:

Immersum have engaged with a leading PropTech company on a mission to revolutionise how the property sector understands people, places, and data. By combining cutting-edge data science with powerful location intelligence, they help major organisations make smarter, faster decisions. Backed by top-tier investors and growing fast, this is your chance to shape the future of PropTech from the inside.


We are seeking a Lead Data Engineer to lead our growing data team (3–4 people) and play a critical role in building scalable, automated data infrastructure. You will help shape the future of their data architecture, ensuring high-quality ingestion, robust pipelines, and reliable systems that can handle millions of data rows per second.


What You’ll Do

  • Design, build, and maintain data ingestion pipelines (APIs, CSVs, high-frequency loads).
  • Automate data ingestion and processing workflows with Snowflake and modern orchestration tools.
  • Implement redundancy, backups, and DB triggers to ensure reliability and data integrity.
  • Work with Python to build scalable data solutions.
  • Introduce and adopt new technologies such as Kafka, Docker, Airflow, and AWS.
  • Define and enforce data hygiene practices (ontology, storage, artifacts, version control).
  • Reduce engineering load per person through automation and efficient design.
  • Collaborate closely with a small, ambitious team to deliver end-to-end data solutions.
  • Support the company’s global expansion by enabling scalable data systems across regions.


What We’re Looking For

  • Strong experience in data engineering and architecture roles.
  • Deep knowledge of SQL, Snowflake (or similar DWHs), and Python.
  • Proven track record of building robust, automated ETL/ELT pipelines.
  • Familiarity with distributed systems and handling large-scale data (millions of rows/sec).
  • Experience with data hygiene best practices: data models, versioning, reproducibility.
  • Hands-on experience with cloud platforms (AWS preferred).
  • Excellent problem-solving skills and a “get stuff done” attitude.


Nice to Have

  • Experience with Grafana or similar monitoring/observability tools.
  • API endpoint design & maintenance.
  • Prior experience in fast-scaling startups or international data systems.


Why Join Us

  • Work directly with leadership (CEO and core team) to influence the company’s data vision.
  • Opportunity to build and scale new data architecture from the ground up.
  • Own greenfield projects and shape the data engineering roadmap
  • Be part of an ambitious, global expansion journey (Europe, U.S.).
  • Competitive compensation and growth opportunities.

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