Data Engineer (start up)

Harnham - Data and Analytics Recruitment; Greater London; On-site; GBP 81,000 - 99,000; Full time

Job summary

Harnham - Data and Analytics Recruitment in London is looking for a Data Engineer to own the production data infrastructure behind a cutting-edge healthcare intelligence platform and work with the founding team to build scalable data products.

The role focuses on ETL/ELT pipelines using Python and SQL, data ingestion across large datasets, and leveraging AI APIs for data extraction and validation. You will own projects end-to-end in a fast-paced startup.

Qualifications

• Proficient Python development for data pipelines and automation.
• Strong SQL skills and production-grade data pipeline engineering.
• Experience with ETL/ELT development and large-scale data processing.
• Ability to own engineering projects from concept to production.

Responsibilities

• Build and maintain scalable ETL/ELT pipelines using Python and SQL.
• Develop robust data ingestion and acquisition processes for large datasets.
• Leverage LLMs and AI APIs for data extraction, classification and validation.
• Design schemas, implement deduplication and entity resolution.
• Lead projects from concept to production with full ownership.

Skills

Python development

SQL

ETL/ELT

Data pipelines

End-to-end ownership

Independent working

Job description

Data Engineer

up to £90,000
London

This is a fantastic opportunity to join a rapidly scaling, venture-backed AI startup, where you'll take ownership of the data infrastructure behind a cutting-edge healthcare intelligence platform. Working alongside the founding team, you'll play a pivotal role in building scalable data products from the ground up.

THE COMPANY:

This high-growth healthcare AI startup is transforming how pharmaceutical, biotech and medical technology organisations make commercial decisions.

The platform provides access to millions of healthcare professional profiles, prescribing insights, claims data and market intelligence, helping customers identify key experts, optimise engagement strategies and support successful drug launches.

THE ROLE:

You will take ownership of the production data infrastructure powering the company's core platform, working across data engineering, AI, data acquisition and product development.

Key responsibilities include:

• Building and maintaining scalable ETL and ELT pipelines using Python and SQL.
• Developing robust data ingestion and acquisition processes across large and complex datasets.
• Leveraging LLMs and AI APIs for data extraction, classification and validation.
• Designing schemas, implementing deduplication processes and managing entity resolution.
• Taking projects from initial concept through to production deployment with full ownership.

YOUR SKILLS AND EXPERIENCE:

You will bring strong capability in:

• Python development.
• SQL and production data pipeline engineering.
• ETL/ELT development and large-scale data processing.
• End-to-end ownership of engineering projects.
• Working independently in a fast-paced startup environment.
• Strong problem-solving and technical aptitude.

THE BENEFITS:

You will receive a salary of up to£90,000 depending on experience, alongside: