Senior Data Engineer

The Senior Data Engineer will play a key role in the evolution of the Reach data lake including creating new data ingestion processes, monitoring existing processes and building out the ingestion frameworks.

The Data Lake is built using AWS services including Athena (Iceberg & Parquet), Glue, S3, Lambda and ECS.

Key Responsibilities

• Build & Maintain Pipelines: Design robust Python data ingestion processes from diverse sources (APIs, S3, SFTP) using AWS tools (Athena/Iceberg/Parquet, Glue, Lambda, ECS) and Redshift.

• Infrastructure & Monitoring: Provision AWS infrastructure using Infrastructure-as-Code (IaC) and embed clear observability mechanisms to ensure high data reliability.

• Cross-Functional Collaboration: Partner directly with analysts, product managers, and business teams to ensure seamless data delivery and articulate technical design decisions clearly.

• Quality & Best Practices: Write comprehensive documentation, enforce unit testing standards, and champion a culture of data quality, inclusion, and non-discrimination.

• Technical Stack: Advanced Python (Pandas, AWS Wrangler), strong SQL (DDL/DML), and deep expertise across AWS data services (Athena, Glue, S3, Lambda, ECS, Redshift).

• Engineering Standards: Proven experience with IaC, unit testing for data workflows, and pipeline observability.

• Communication & Collaboration: Exceptional ability to explain complex technical concepts to non-technical partners, foster collaboration across teams, and manage multiple priorities independently.

How we'll look after you

We take good care of our people - and that means more than just a pay packet. Whatever your role, you'll get a range of benefits, including:

• 25 days' holiday (plus bank holidays), as well as an extra day after you've been with us for three, five and 10 years. We also have a scheme to help you buy extra holiday if you want to.
• An extra day's paid leave each year to volunteer for a cause close to your community or your heart.
• Big moment day - an extra day’s paid leave for a moment that matters to you - like getting married, moving house or welcoming a new addition to the family (human or furry!)
• Bonus scheme - you'll get a stake in our success and a chance to add to your annual earnings.
• Help saving for your retirement - we'll match your company pension contributions up to 6% and you can contribute through salary sacrifice.
• Supportive and progressive people policies - we’re proud to have a range of policies to support people in their lives in and outside work, including enhanced family leave and policies to promote flexibility, inclusion and progression. We believe you shouldn’t have to wait to join us to know what to expect from us, which is why we share this overview of the policies we have in place to support families and carers. If there's something you want to understand more about, just ask - it won’t make a difference to your application.
• A healthcare cash plan - giving you money back for a range of medical expenses and fast access to doctor's appointments.
• Car lease scheme - you can buy a brand new electric or hybrid car through our leasing partner, and pay for it through salary sacrifice.
• Wellbeing support - including a 24/7 assistance programme for you and your family.
• Financial Wellbeing – Access Stream, our app for managing your finances, pay, rewards and benefits all in one place
• Access to lots of discounts - including 15% off with Reach's very own online marketplace, Yimbly, where you can buy everything from homewares to beauty products.
• Interest-free loans - including for season tickets and technology.

If you’re excited about this role but don’t tick every single box, please don’t let that stop you from applying.

We know that everyone has their own story to tell, and we value potential, passion and the perspectives that different backgrounds bring to our work.

Diverse perspectives strengthen our teams and help us better serve our audiences, which is why we’re dedicated to fostering an inclusive workplace where everyone feels welcome and supported. As an equal opportunities employer, we encourage applications from people of all backgrounds and experiences.

We are committed to a recruitment process that is fair and welcoming to all, without discrimination on the basis of age, disability, gender identity, ethnicity, religion or belief, sexual orientation, or any other protected characteristic.