Senior Data Engineer

iO Associates; London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading investment firm is seeking a Senior Data Engineer to join their innovative data team in London. This hybrid role involves leading data migration projects, optimizing ETL processes, and mentoring junior engineers while working with cutting-edge technologies like Snowflake. The position offers a competitive salary and a supportive environment focused on professional growth.

Benefits

25 days holiday plus bank holidays

Great working environment

Hybrid working

Qualifications

• Proven experience across the full data lifecycle.
• Strong Python skills for automation.
• Hands-on experience with Snowflake.

Responsibilities

• Lead data migration and integration tasks.
• Design and optimize ETL processes.
• Build and enhance a Snowflake data warehouse.

Skills

Python

ETL/ELT pipelines

Data governance standards

Tools

Snowflake

Job description

Title: Senior Data Engineer

Salary: Up to £100,000 D.O.E

Location: London (Hybrid 3 Days on site)

Are you a data engineer ready to make a real impact in a company that values innovation, autonomy, and excellence?

iO Associates is recruiting for a high-growth, forward-thinking investment firm that sits at the intersection of finance and technology - and they're looking for a Data Engineering Specialist to join their collaborative data team.

This is a unique chance to step into a role that offers both technical ownership and strategic influence, within a business that's genuinely committed to doing things differently. Our client is known for backing purpose-driven investments and building tech-enabled solutions that scale with the future of finance.

The Role:

As a Data Engineering Specialist, you'll play a vital role in transforming how the business uses data. You'll lead critical migration projects, work with modern tooling like Snowflake, and help architect scalable, future-proof data solutions.

You'll also collaborate with business stakeholders, mentor colleagues, and drive improvements in data quality across the board - all while building slick, automated data pipelines in Python.

Key Responsibilities:

• Lead data migration and integration tasks, ensuring quality and alignment across systems.

• Design, implement, and optimise ETL processes to streamline data movement from diverse sources.

• Build and enhance a robust Snowflake data warehouse to support evolving reporting needs.

• Troubleshoot and resolve data quality issues, supporting business users with self-service access.

• Develop Python-based automation tools and scalable pipelines.

• Conduct data validation, cleansing, and rigorous testing to maintain data integrity.

• Mentor junior engineers and champion best practices in data management and engineering.

• Investigate and resolve challenges specific to the financial lending data environment.

What You'll Need:

• Proven experience across the full data lifecycle - from ingestion and transformation to validation and analysis.

• Strong Python skills and confidence building automation for large-scale data tasks.

• Hands-on Snowflake experience.

• Deep understanding of ETL/ELT pipelines and data governance standards.

• A solid grasp of financial data or lending domain knowledge is highly desirable.

• A passion for mentoring and upskilling teammates in a supportive, collaborative environment.

• Comfort working across teams, communicating complex ideas to both technical and non-technical audiences.

What you get:

• Salary up to £100k
• Hybrid working
• 25 days holiday plus bank holidays
• Great working envrionment
• And more!

Our client has a 2 stage interview process and for the right candidate, they will interview early next week!

If you're interested in this role, or know someone who would be, then please get in touch to a.methula@ ioassociates.co. uk