WHO WE ARE

E1, (formerly known as EstimateOne) is a SaaS tender management platform connecting commercial builders with subcontractors and suppliers. Proudly named one of AFR’s Best Places to Work in 2025, we’re the market leader in Australia and New Zealand — and now we’re growing our 120-person team into the UK.
Our scaleup vibe keeps things lively. We’ve come a long way in 15 years, and seeing what we’ve achieved in that time, gets us pretty excited for the next 15. We’re passionate about setting clear, fair expectations and delivering results, with a genuine commitment to wellness and happiness that you’ll truly experience.
We’ve been recognised twice on the AFR Best Place to Work list, so we care a lot about making sure we’re a place people want to work.

We’re looking for a Principal Data Engineer to help us elevate our data strategy, as well as the data engineering skill and expertise of E1’s teams.
As a Data Engineer, you will define, guide, and execute our data strategy, ensuring our databases, pipelines, and data platform solutions are scalable, performant, secure, compliant with regulatory requirements and aligned with business needs.
This role combines deep expertise in database design and optimisation with mastery of modern data engineering practices to uplift teams, strengthen governance, and steer E1 towards becoming a truly data-driven organisation.