BI Developer

Holland Mountain

ATLAS BI Developer

Build insights. Drive impact. Thrive in pace.

Workplace: Hybrid (3 days in the office) Location: London Bridge

Are you a BI Developer who loves turning data into meaningful insight and thrives in environments where no two days are the same?

At Holland Mountain - Atlas, we’re looking for developers who go beyond technical delivery. This is a role for people who enjoy working at speed, partnering with clients, and navigating complexity with confidence.

What makes this role different?

• This isn’t a traditional, slow-moving BI position. You’ll be working in a dynamic, client-facing environment where:
• Priorities shift
• Requirements evolve
• Multiple workstreams run in parallel
• If you enjoy variety, ownership, and solving problems in real time you’ll fit right in.

What you’ll bring

• We’re looking for BI Developers who combine strong technical skills with adaptability and ownership. You’ll:
• Work across multiple projects and stakeholders simultaneously
• Translate unclear or evolving requirements into effective solutions
• Balance delivery across competing priorities — without compromising quality
• Communicate confidently with both technical and non-technical audiences
• Take real ownership of outcomes, not just tasks

The kind of experience that stands out

You’ll likely have experience in:

• Consulting or client delivery environments
• Fast-paced teams with shifting priorities
• Situations where you’ve had to figure things out without all the answers upfront
• We value people who can demonstrate how they’ve:
• Managed conflicting deadlines
• Delivered in ambiguous or rapidly changing environments
• Worked directly with clients or senior stakeholders

Core Technical Expertise

• Strong SQL Server development skills, including writing and optimising T-SQL queries and stored procedures.
• Experience developing and maintaining SSAS multidimensional and Tabular models, including DAX calculations.
• Working knowledge of BI and data warehousing methodologies, with the ability to implement solutions in line with agreed approaches and standards.
• Familiarity with Azure data services and modern data platform components.
• Experience applying data validation and testing techniques to ensure data accuracy, reliability, and quality.
• Ability to work within established architectural patterns, data models, and development standards.
• Programming or scripting experience is desirable.
• Experience working within Data Vault and Kimball modelling approaches.

A quick reality check

This role isn’t suited to those who have only worked in highly structured, single-project environments. Success here requires flexibility, resilience, and a proactive mindset.

And while many candidates say they enjoy fast-paced work, we’re looking for those who can prove it with real examples.

Ready to build, adapt, and deliver at pace? Join Atlas and make your impact count.