Senior Snowflake Data Engineer

Square One Resources; Sutton; Hybrid; GBP 74,000 - 83,000; Part time

Job summary

Square One Resources is seeking a Senior Snowflake Data Engineer for a hybrid role in Sutton. You will lead the design and development of Snowflake-based data solutions, collaborating with cross-functional teams to translate requirements into scalable data architectures.

The ideal candidate will have strong Python, SQL/NoSQL, ETL and data modelling skills, plus hands-on Snowflake, AWS, Terraform, Linux, and GitHub Actions experience.

Qualifications

• Strong experience designing and implementing Snowflake-based data solutions.
• Proficient in Python, SQL and NoSQL for data processing and querying.
• Hands-on with ETL processes and data synchronisation pipelines.

Responsibilities

• Design, develop and optimise Snowflake-based data architectures.
• Mentor junior team members and collaborate with cross-functional teams.
• Ensure secure, scalable data solutions and adhere to best practices.

Skills

Snowflake

Python

SQL

NoSQL

ETL

AWS

Terraform

Linux

GitHub Actions

Data modelling

Tools

Snowflake

GitHub Actions

Terraform

Linux

Job description

Job Title: Senior Snowflake Data Engineer
Location: Sutton (2 days in the office - Tuesdays and Thursday (can also do 1 day in Sutton and 1 day in London))
Salary/Rate: £400-450 per day inside IR35
Start Date: August
Job Type: Initial 12 month contract

Company Introduction
We have an exciting opportunity now available with one of our sector-leading data analytic clients!

They are currently looking for a skilled Senior Data Engineer to join their team in Sutton on a hybrid basis. Our client requires a candidate that has excellent experience managing a Snowflake estate.

Job Responsibilities/Objectives

This role involves leading complex research, design, and software development activities within a defined functional area. It contributes directly to project plans, schedules, and development methodologies for cross-functional software products.
The role includes designing software solutions-often spanning multiple systems-mentoring more junior team members, and collaborating with users and customers to translate requirements into effective technical solutions.

• Write and review detailed specifications for the development of complex system components.
• Collaborate closely with team members in an Agile environment to understand complex product requirements and translate them into software and data designs.
• Follow established development processes, applying coding standards and security best practices, and actively participate in code reviews.
• Troubleshoot and resolve complex technical issues, including debugging and defect resolution.
• Contribute to the design and evolution of complex data models.
• Act as the primary point of expertise for supporting and maintaining the existing Data Lakehouse platform.

Required Skills/Experience
The ideal candidate will have the following:

• Strong proficiency in data manipulation languages, including performance optimisation techniques.
• Strong understanding of both normalised and dimensional data modelling principles.
• Strong knowledge of multiple data storage systems and architectures.
• Expertise in Python development, along with query languages including SQL and NoSQL.
• Solid knowledge of DevOps practices, with hands‑on experience using GitHub Actions.
• Experience with AWS services such as S3, Lambda, SQS, SNS, and IAM is desirable.
• Proven knowledge and hands‑on experience with ETL processes and data synchronisation pipelines.
• Hands‑on experience with Snowflake (or similar cloud data warehouse platforms) is preferred.
• Strong knowledge of Terraform, Linux, and .NET technologies.
• Excellent oral and written communication skills.

Disclaimer

Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.