> Markdown version of [/jobs/ext/3316025-data-engineer-start-up](https://www.wearedevelopers.com/jobs/ext/3316025-data-engineer-start-up). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Data Engineer (start up)

- **Company:** Harnham
- **Location:** London, UK
- **Salary:** £80,000.0 - £90,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Big Data, Data Deduplication, Extract Transform Load (ETL), Data Mining, Python (Programming Language), Operational Databases, Software Deployment, SQL Databases, Data Ingestion, Large Language Models, Data Pipelines
- **Published:** September 1, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5863110000

## About the Role

* 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.

## Description

* 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.


## Related Videos

- [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology)
- [Data Science on Software Data](https://www.wearedevelopers.com/videos/162-data-science-on-software-data)
- [Enjoying SQL data pipelines with dbt](https://www.wearedevelopers.com/videos/823-enjoying-sql-data-pipelines-with-dbt)
- [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases)
- [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data)
- [TiDB, One Layer at a Time: How Distributed SQL Became an Agentic AI Backbone](https://www.wearedevelopers.com/videos/100117-tidb-one-layer-at-a-time-how-distributed-sql-became-an-agentic-ai-backbone)

## Related Articles

- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)