Senior Data Engineer

Job Description

Unmind is the leading workplace wellbeing platform, on a mission to create mentally healthy workplaces where employees can flourish.

Grounded in science and built for enterprise, we drive people-first performance at some of the world’s biggest brands, including Uber, Major League Baseball, NHS, Disney, Standard Chartered, Mediacom and British Airways.

Our services support the whole organisation with data-driven performance insights for leaders, training for managers, wellbeing tools for all employees, as well as access to a global network of accredited mental health practitioners.

Our internal standards are as high as those of our clients. We’re an ambitious VC backed software business on the exhilarating 10-100M phase of our growth journey. It’s hard and rewarding work and we’re determined to be our very best case study along the way.

Unmind believe high performance will hinge on the powerful harmony between our relentless drive for results and creating an environment that elevates our people's wellbeing. This wouldn’t be possible without a dedication to our core values:

• Be Human

• Grow Your Mind

• Innovate at Speed

• Inspire & Impact

To learn more about our values, what to expect when applying, interviewing, and working at Unmind, and to find answers to common questions, visit our FAQ page here.

Our DEI commitment

We strive to build a workplace that celebrates our differences, where every Unminder feels included, equal, seen and heard. This is true regardless of your age, race, gender identity, religion or belief, marital or parental status, disability, neurodiversity, or sexual orientation.

We’re proud of our culture, but not smug. So if there’s anything we can do to make the hiring process more accessible, just let us know when you apply, or email talent@unmind.com.

The Role – Senior Data Engineer

The core mission of the data team is to provide meaningful recommendations and actionable insights from our users’ and client data as we strive to build the best version of Unmind.

As a Senior Data Engineer, you will play a critical role in shaping and evolving Unmind’s data platform. As the primary data engineer in a small, fast-moving team, you'll take end-to-end ownership of our data infrastructure – from architecture and tooling decisions to implementation and optimisation. You'll work closely with our Director of AI & Data and collaborate across Engineering, Product, and other teams to unlock meaningful insights and power data-driven decisions across the business.

This is a hands-on role with plenty of scope for shaping our data platform and influencing how data is used across the business.

Things you'll do in this role

We move quickly, which means that the focus and responsibilities of any position can be quite dynamic – but here’s how we initially see your skills and passion coming to life at Unmind.

Lead and Own – You will lead the development and direction of our data platform, owning the architecture and tooling choices to ensure reliability, and flexibility. You’ll take initiative in shaping how data is collected, processed, and made accessible across the business.

Build and Improve – You’ll build and maintain robust, scalable data pipelines and integrations across our platform and third-party systems. You’ll also play a key role in monitoring and improving performance, data quality, and operational efficiency.

Collaborate and Influence – You will work cross-functionally with software engineers, systems engineers, data scientists, analysts, and stakeholders to understand data needs, guide data best practices, and deliver solutions that drive impact.

Advise and Evolve – You’ll advise on data modelling, warehousing, and platform enhancements, while continuously evaluating opportunities to improve how we work with data.

Our Tech Stack

AWS, Python, Dagster, DLTHub, Terraform, dbt, Snowflake, Github, Postgres, Tableau

Skills and Experience

We encourage you to remove education from your CV upon application as qualifications are not a driving factor in our decision making and we are committed to tackling educational inequality. We firmly believe that no one is the finished article and that there should be learning in every role you do. However, some experience in the following is important for this position:

• Strong, proven skillset in Python & SQL

• Expertise in Dagster (or Airflow), DBT, or DLTHub

• Experience maintaining and working on ELT architecture and/or analytics platforms

• Experience with monitoring data quality, job execution times, job success/failure and remediation

• Experience and knowledge in data warehousing and data modelling best practices

• Ability to understand & translate business requirements into technical implementation

• Ability (or desire) to use LLMs to enrich data sources for AI use-cases

• Experience proactively collaborating cross-functionally

Benefits

At Unmind we believe in having a whole person approach and we hope that our benefits enhance the lives of Unminders, helping them be happy, healthy and fulfilled. You can see the full list of our benefits on our careers page, but they include:

• Private Medical Insurance for you and your family

• Unmind Equity scheme

• Generous gender neutral parental leave

• 25 days annual leave plus your birthday day off and 2 celebration days

• Revive and Thrive Days: the second Friday of every month is a company day off

• Flexible working, including flexible use of Public Holidays and 3pm finishes on Fridays June-August

• Hybrid working from dog-friendly Central London office (1 team day a week)

• Annual learning budget with 2 days learning leave

• Monthly Subscription to WellHub, our fitness and wellbeing partner

• Financial wellbeing support via Bippit

• Access to the Unmind platform, including Talk - book free, weekly sessions with a therapist or coach