> Markdown version of [/jobs/ext/2741790-senior-data-engineer](https://www.wearedevelopers.com/jobs/ext/2741790-senior-data-engineer). 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). --- # Senior Data Engineer - **Company:** LA International - **Location:** London, UK - **Experience:** Expert - **Salary:** £104,000.0 - £130,000.0 - **Contract:** Permanent contract - **Skills:** Query Performance, Amazon Elastic Compute Cloud, Amazon S3, Big Data, Continuous Integration, DevOps, Github, Performance Tuning, Systems Development Life Cycle, Software Engineering, SQL Databases, Snowflake, Electronic Medical Records, Pyspark, Terraform, Software Version Control, Data Pipelines - **Published:** September 6, 2026 - **Apply:** https://www.securityclearedjobs.com/job/802083042/senior-data-engineer-/ ## About the Role * Experience with AWS data stack (S3, EMR, EC2, etc.) * PySpark * Production-grade data pipelines * Performance optimisation and large-scale data processing * Snowflake * Data modelling (RDV/BDV or similar patterns preferred) * Query performance tuning * DBT (or equivalent SQL transformation framework) * Development of modular, testable data models * Experience working in structured transformation frameworks (e.g. dbt, Grid-style approaches) * CI/CD & DevOps * Hands-on experience with GitHub Actions (or similar) * Exposure to Infrastructure-as-Code (e.g. Terraform) * Experience working in engineering-led environments with strong SDLC practices * General engineering maturity * Strong software engineering principles (testing, modularity, version control) * Experience working in cross-functional product/data teams * Ability to contribute to design and solutioning discussions ## Description The main areas of focus for this role over the next few months will include: * Designing, building and maintaining production-grade data pipelines and services across AWS, PySpark, Snowflake and SQL-based transformation frameworks * Developing and maintaining modular, testable and high-quality data models and transformation pipelines using DBT or equivalent structured SQL frameworks * Improving pipeline robustness through automation, monitoring, validation, dependency management and engineering best practices to reduce manual intervention and production failures * Diagnosing and resolving pipeline failures, supporting reruns and validations, and addressing data quality issues to maintain continuity of critical customer-facing use cases * Contributing to CI/CD and DevOps practices including GitHub Actions, version control, testing disciplines and exposure to Infrastructure-as-Code such as Terraform ## Related Videos - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Empowering Retail Through Applied Machine Learning](https://www.wearedevelopers.com/videos/976-empowering-retail-through-applied-machine-learning) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know)