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Analytical Data Engineer (Freelance) at Braintrust
London, United Kingdom


Job Descrption
Job Description

The Motley Fool is looking for a highly skilled Freelance Analytical Data Engineer with a strong focus in data warehousing to join our team on an independent contract basis, 40 hours per week for at least 12 months. This is a mid to senior level position and requires 4-5+ years of relevant experience.

Who are we?

We are The Motley Fool, a purpose-driven financial information and services firm with nearly 30 years of experience focused on making the world smarter, happier, and richer. But what does that even mean?! It means we’re helping Fools (always with a capital “F”) demystify the world of finance, beat the stock market, and achieve personal wealth and happiness through our products and services.

What does this team do?

The Data Engineering team at The Motley Fool creates data pipelines to wrangle data from

around the Fool. We collaborate with everyone - from third party vendors to stakeholders to

build easily consumable data structures for reporting and... business insights. While working

closely with our business analysts and machine learning specialists, we serve the data needs of

all The Motley Fool Teams!

What would you do in this role?

As a Freelance Data Engineer, you will be responsible for expanding and optimizing data, the

data pipeline architecture, the data flow, and collection for cross-functional teams. You are an

experienced data pipeline builder and data wrangler who enjoys optimizing data systems and

building them from the ground up. This role will involve collecting and integrating raw data from

various vendors, transforming it into clean, structured data sets, and building a scalable,

maintainable data mart. The ideal candidate will be responsible for ensuring the integrity and

usability of the data across downstream processes, working closely with stakeholders to ensure

data models align with business needs and support future growth. Strong technical skills and

Experience In Data Architecture Are Essential.

But What Would You Actually Do in this role?
• Build data warehouses and data pipelines in Snowflake
• Query and analyze large datasets in Snowflake using SQL
• Debug and resolve data issues
• Develop serverless data processing workflows using custom operators within Airflow.
• Leverage data assets to meet mission needs, ensuring consistent data quality,

establishing data standards and governance
• Work in an agile, collaborative environment, partnering with client stakeholders, to

develop and improve mission-based solutions
• Monitor cloud-based systems and components for availability, performance, reliability,

security and efficiency
• Create and configure appropriate cloud resources to meet the needs of the end users.
• As needed, document topology, processes, and solution architecture.
• Assist with the training and enablement of data consumers.
• Share your passion for staying on top of tech trends, experimenting with and learning

new technologies

Required Experience:
• Enterprise-level data warehousing experience - specifically within Snowflake.
• Proficiency in SQL, including multi-table joins, window functions, indexing strategies.
• Data Debugging Experience
• Experience developing using Python in context of data ingestion via REST APIs,

manipulation with native data types, and database connection
• Experience with AWS Services, including Lambda functions, EC2/ECS instances, S3,

SQS, DynamoDB Tables; familiarity with IAM Roles and Policies.
• Experience with development and deployment of data pipelines using Airflow; proficiency

in base and third-party operators for complex DAGs.
• Experience with Snowflake setting up storage integrations, external stages, data shares,

snowpipes, RBAC; setting up tasks using Snowpark API.
• Ability to work independently, and deliver results and drive projects with minimal

supervision
• Strong ability to communicate blockers and issues to management for escalation and

timely resolution
• Strong team player, with desire to learn new skills and broaden experience
• Experience working with complex data sets

Nice to Have:
• Experience with event tracking configuration in Google GA4 and analysis using

BigQuery
• Experience with data migration project refactoring and optimizing complex SQL logic
• Experience working with financial data
• Experience investing and/or using The Motley Fool’s service offerings
• Experience leveraging data quality tools to proactively address data discrepancies
• Experience with DevOps, developing infrastructure-as-code via Terraform and/or

CloudFormation
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