Tact
Senior Data Engineer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Senior Data Engineer, initially 3 months (expected 6-12 months), based in London Bridge. Pay is outside IR35. Key skills include AWS, Python, and data engineering experience. Familiarity with RAG, LangChain, and enterprise security is preferred.
🌎 - Country
United Kingdom
💱 - Currency
£ GBP
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💰 - Day rate
Unknown
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🗓️ - Date
August 11, 2026
🕒 - Duration
3 to 6 months
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🏝️ - Location
On-site
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📄 - Contract
Outside IR35
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🔒 - Security
Unknown
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📍 - Location detailed
London Area, United Kingdom
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🧠 - Skills detailed
#FastAPI #Terraform #Delta Lake #PostgreSQL #Langchain #Data Engineering #Python #S3 (Amazon Simple Storage Service) #Security #AWS S3 (Amazon Simple Storage Service) #AWS (Amazon Web Services) #Airflow #MLflow #Athena
Role description
Senior Data Engineer | Outside IR35 | London Bridge | Initially 3 months, with the project expected to run 6-12 months
This is a greenfield contract.
You'll come in and architect an AWS Lakehouse from the ground up, working directly with the Head of Data and Lead Data Engineer.
You'll have a genuine say in how it's designed, how the data is structured and how it scales. Then you'll actually build it.
You'll be working with a very modern stack:
• AWS S3, Glue, Athena & EKS
• Python
• Dagster / Airflow
• Terraform
• PostgreSQL
• Parquet / Delta Lake
You'll also get involved in the bigger engineering decisions around data modelling, orchestration, governance, lineage and security.
If you've worked around RAG, LangChain, pgvector, FastAPI, MLflow or enterprise security environments, even better.
What's the setup?
• Outside IR35.
• Initial 3 months, with the project expected to run 6+ months.
• 4 days onsite in London Bridge.
• You'll work Monday to Thursday. Friday is your day off. This is a 4 day working week contract!
The real sell though is the work. You're not coming in to maintain someone else's platform or clear tickets.
You'll help decide what the platform should look like, architect it and then build it.
If that sounds like your kind of contract, apply and I'll give you the full rundown.
Senior Data Engineer | Outside IR35 | London Bridge | Initially 3 months, with the project expected to run 6-12 months
This is a greenfield contract.
You'll come in and architect an AWS Lakehouse from the ground up, working directly with the Head of Data and Lead Data Engineer.
You'll have a genuine say in how it's designed, how the data is structured and how it scales. Then you'll actually build it.
You'll be working with a very modern stack:
• AWS S3, Glue, Athena & EKS
• Python
• Dagster / Airflow
• Terraform
• PostgreSQL
• Parquet / Delta Lake
You'll also get involved in the bigger engineering decisions around data modelling, orchestration, governance, lineage and security.
If you've worked around RAG, LangChain, pgvector, FastAPI, MLflow or enterprise security environments, even better.
What's the setup?
• Outside IR35.
• Initial 3 months, with the project expected to run 6+ months.
• 4 days onsite in London Bridge.
• You'll work Monday to Thursday. Friday is your day off. This is a 4 day working week contract!
The real sell though is the work. You're not coming in to maintain someone else's platform or clear tickets.
You'll help decide what the platform should look like, architect it and then build it.
If that sounds like your kind of contract, apply and I'll give you the full rundown.
