Senior Data Engineer

Nuffield Health Careers; Epsom; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Free gym membership

Health assessments

Retail discounts

Pension options

Job summary

Nuffield Health is seeking a Senior Data Engineer to own a defined area of the data platform, lead end-to-end delivery and mentor engineers. The role focuses on robust ingestion and transformation using Snowflake, dbt and Azure, within a distributed leadership model.

You will collaborate with product owners, architects and third-party suppliers to deliver scalable data solutions that are observable and compliant with enterprise standards.

Qualifications

• Extensive hands-on data engineering across ingestion, modelling and warehousing.
• Strong SQL and relational design skills for BI support.
• Experience with ETL/ELT tools and cloud data platforms.
• Ownership mindset: deliver initiatives with stakeholde rs and mentor teammates.
• Excellent communication, translating complex concepts to technical and non‑technical audiences.

Responsibilities

• Own a defined area of the data platform, setting standards and tooling.
• Document work to enable knowledge transfer across the team.
• Lead end-to-end delivery of initiatives with cross-functional teams.
• Line manage engineers and align with delivery managers and architects.
• Design, build and operate robust data ingestion, transformation on Snowflake/dbt/Azure.
• Ensure solutions are observable and supportable, contributing to incident management.
• Coach mid-level engineers to grow into leadership roles.
• Contribute to roadmap, BAU planning and engineering maturity.

Skills

SQL

Data modelling

Data warehousing

ETL/ELT tooling

Snowflake

dbt

Azure Data Factory

Terraform

New Relic

SQL Server

Tools

Talend

Azure Data Factory

dbt

Snowflake

Terraform

SQL Server

Job description

Senior Data Engineer - Data Engineering

Barbican & Epsom | Hybrid Working (1 office day per week) | Permanent | Full-Time

Competitive salary available, depending on experience

37.5 hours per week

At Nuffield Health, everything we give our patients, members and customers starts with our people. Your passion, your expertise and your drive to make a difference enable us to deliver exceptional connected healthcare and fitness experiences.

We're looking for an experienced Senior Data Engineer to join our Data Engineering team, responsible for making data available and trusted across the whole of Nuffield Health. This is a role with real ownership: you'll own a functional area of our data platform, lead delivery initiatives and line manage engineers, setting the standards, patterns and direction that the wider team follows.

Our Data Engineering team operates a distributed leadership model. Each Senior Data Engineer owns a defined functional area, such as ingestion and integration, incident management and observability, governance, security and cost management, or CI/CD and DevOps, and is accountable for the standards and resilience of that area so that nothing depends on a single person. Seniors lead delivery initiatives and line manage engineers, with the Lead Data Engineer retaining overall technical direction and the roadmap. You'll work with industry-leading technologies including Snowflake, dbt, Azure Data Factory, Talend, SQL Server, New Relic and Terraform.

Could you play a key role in that?

As our Senior Data Engineer, you'll:

• Own a defined functional area of the data platform, setting the standards, patterns and tooling the team follows within it and acting as the first point of contact for questions in that area.
• Avoid becoming a single point of dependency by documenting your work and helping other engineers develop the knowledge and skills needed to support your area, treating knowledge transfer as an ongoing obligation rather than a one-off handover.
• Lead delivery initiatives end to end, planning, resourcing and delivering against agreed constraints in collaboration with Product Owners, Delivery Managers, architects and third-party suppliers.
• Line manage engineers, including objectives, development plans and reviews, and line manage external or temporary resource aligned to your initiatives for their duration.
• Design, build and operate robust ingestion, integration and transformation solutions on Snowflake, dbt and Azure, in line with Nuffield Health's enterprise architecture and data engineering standards.
• Ensure solutions are operationally ready, observable and supportable, and contribute to incident and problem management as part of the team's service management approach.
• Coach mid-level engineers to take ownership of epics and smaller initiatives within their squad, growing the next generation of leaders in the team.
• Contribute to the team's technical roadmap, BAU planning and engineering maturity, including documentation, code quality, branching and testing standards.
• Escalate cross-cutting risks, dependencies and unassigned questions to the Lead Data Engineer, and communicate clearly with technical and non-technical stakeholders.

To succeed as Senior Data Engineer, you'll bring:

• Substantial hands-on data engineering experience across integration, data modelling and data warehousing, with excellent SQL skills.
• Experience with ETL/ELT tools (e.g. Talend, Azure Data Factory, dbt) and database platforms (e.g. MS SQL Server, Snowflake, Azure SQL Database), including developing integration solutions using APIs, files and databases.
• Experience with performance tuning, data migration strategies (on premise and cloud) and relational database design, particularly in support of business intelligence.
• Experience setting and upholding engineering standards, and taking ownership of quality and outcomes for a technical area.
• Experience leading the delivery of a project or initiative, working with Product Owners, Delivery Managers, architects and third-party suppliers to manage scope, dependencies and risk.
• Line management or mentoring experience, or a clear appetite to develop it with structured support.
• Excellent communication skills, including documenting technical design proposals and translating complex technical concepts for technical and non-technical audiences.

Desirable:

• Observability and incident management tooling, such as New Relic and ServiceNow.
• CI/CD, DevOps and infrastructure as code, such as Terraform and Azure DevOps.
• Data governance and security: data masking, GDPR, access auditing, PII handling, role-based access and cloud cost management.
• Experience in healthcare or another regulated environment.

We will provide:

• A wide variety of interesting and challenging work that involves most of Nuffield Health's systems, working with key stakeholders such as data analysts, data scientists and business intelligence teams.
• Genuine ownership of a functional area and the initiatives you lead, within a community of data engineers where your opinions shape the standards and practices we adopt.
• A structured path into technical leadership and people management: training pathways, shadowing and reverse shadowing, a Seniors peer group, and regular reviews with the Lead Data Engineer.
• Opportunities to learn and develop your career through apprenticeships, self-learning, mentoring and training courses, with progression encouraged both within the team and across Nuffield Health.
• An environment that allows you to perform at your best, working collaboratively with colleagues who are focused on improving the health of our nation and making a real difference to people's everyday lives.

Helping you feel good.

We want you to love coming to work, feeling healthy, happy and valued. That’s why we’ve developed a benefits package with you in mind. Here, you can choose from a range of fitness, lifestyle, health and fitness wellbeing rewards, such as free gym membership, health assessments, retail discounts and pension options.

At Nuffield Health, we take care of what’s important to you.