Tes
Looker Developer / BI Analyst
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Looker Developer / BI Analyst
Job Title: Looker Developer (BI Analyst)
Department: Data & Insights
Location: Sheffield or London
Working Pattern: Hybrid, includes 3 days each week in the office
Contract Type: Full time, permanent
Salary: Up to £50,000 per annum
At Tes we are on a mission to power schools and enable great teaching worldwide, by delivering EdTech solutions that give educators the tools to succeed. From safeguarding and compliance to staff and pupil management, our innovative and flexible software and services help teachers and school leaders worldwide to provide the best education to millions of children.
With more than 13 million educators in our community, combined with our working relationships with 25,000 schools in over 100 countries, we have been making a difference for over 100 years.
Role overview
As a Looker Developer at Tes, you will play a key role in our data transformation journey, helping scale and mature our analytics capabilities through Looker. You will be responsible for designing, developing, and maintaining LookML models and delivering high-quality, governed data experiences across the business.
Working closely with the wider Data & Insights team and business stakeholders, you will ensure that data is modelled effectively, accessible, and trusted—empowering teams to make data-driven decisions that positively impact the education sector.
This role sits within the Data & Insights department.
Key Responsibilities
- Act as a subject matter expert for Looker, advocating best practices in semantic modelling, governance, and self-service analytics
- Design, develop, and maintain LookML models, including views, explores, and dashboards
- Build scalable and reusable semantic layers to ensure consistency and trust in business metrics
- Partner with Sales, Marketing, Product, and Finance teams to understand reporting needs and translate them into robust Looker solutions
- Develop and maintain data pipelines and transformations (in collaboration with analytics engineering teams) to support Looker models
- Optimise Looker performance through efficient modelling, caching strategies, and query design
- Enable and promote self-service analytics by creating intuitive dashboards and curated explores
- Enforce data governance standards, ensuring accuracy, consistency, and proper documentation of metrics
- Analyse datasets to identify trends, patterns, and insights, clearly communicating findings to stakeholders
- Support business users in adopting Looker, including training, documentation, and best practice guidance
- Collaborate cross-functionally to align on KPIs, definitions, and data strategy
- Contribute to continuous improvement of the data platform, tooling, and processes
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What will you need to succeed?
- Strong experience with Looker and LookML development
- Advanced SQL skills with several years of hands-on experience
- Experience building scalable semantic layers in a BI tool (Looker preferred)
- Solid understanding of data modelling principles (e.g., star schema, dimensional modelling)
- Experience with ETL/ELT tools (e.g., dbt, Fivetran or similar)
- Knowledge of data governance and metric standardisation practices
- Experience delivering high-quality dashboards and data visualisations
- Strong analytical and problem-solving skills
- Ability to translate business requirements into technical solutions
- Excellent stakeholder engagement skills and the ability to influence decision-making
- A curious mindset with a passion for continuous learning
It’s beneficial if you have experience/knowledge in:
- Advanced Looker capabilities, such as extensions, API usage, or embedded analytics
- Cloud data platforms (e.g., AWS Redshift, Snowflake, BigQuery)
- Analytics engineering practices and tools (e.g., dbt testing, CI/CD for LookML)
- Programming languages such as Python or R
- Working on data transformation or modern data stack implementations
- Supporting or driving organisation-wide BI adoption initiatives
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What do you get in return?
- 25 days annual leave rising to 30
- 5% pension after probation
- State of the art offices
- Access to a range of benefits via My Benefits World
- Free eye care cover
- Life Assurance
- Cycle to Work Scheme
- EAP (Employee assistance programme)
- Quarterly Tes Socials
- Access to an extensive Learning and Development menu
Who are Tes?
Tes is a global Edtech leader, on a mission to empower schools and educators to deliver impactful, inspiring learning experiences worldwide. We understand the unique challenges faced by schools, and our ecosystem is specifically designed to address these needs head-on.
Our intuitive technology streamlines complex tasks, enhances learning experiences, and alleviates the administrative burdens that often overwhelm schools.
By working closely with schools, we provide up-to-date resources, expert guidance, and a technology ecosystem dedicated to innovation and excellence in education. Whether simplifying administrative workflows, creating dynamic classrooms, or advancing professional development, Tes is the trusted partner for schools worldwide.
Join the hundreds of schools already benefiting from the Tes ecosystem. Together, we empower educators to achieve more, ensuring every student thrives in a supportive, well-managed learning environment.
With Tes, excellence in education is not just a goal - it's a sustainable and rewarding reality. For more information about Tes, our products, and our team, visit: www.tes.com.
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