Senior Data Platform Engineer in London

At Great Yellow, we’re looking for a Senior Data Platform Engineer to join our team.

Great Yellow is building the operating system for a regenerative economy. Our mission is to make regenerative land-use investable and scalable, helping businesses, investors, and land managers move from intention to investable action. We’re proving it in the UK on landmark landscape recovery projects, with proprietary natural capital valuation models and a growing team of advisors, project managers, ecological experts, engineers, and product thinkers.

We’re building the intelligence layer that will fundamentally reshape how land-use decisions are made, financed and scaled, toward a world where those decisions are systematically aligned across nature, infrastructure, agricultural production and human wellbeing. This is a system designed not just to analyse the world, but to actively coordinate regenerative land-use across landscapes, supply chains and asset classes.

We’re a small, early-stage technical team inside a wider commercial business. We ship fast, validate, and iterate.

About the Role

We’re looking for a senior engineer to design, build, and own the data pipelines and data architecture that feed both our customer-facing platform and our internal teams, and who has the software-engineering range to jump in alongside our product engineers when the work calls for it. This is a hands-on role reporting to the Head of Engineering. The volume of work isn’t the challenge, the variety is. Over the next 6-12 months we expect to stand up many pipelines across very different data shapes, from statutory BNG and carbon datasets to live environmental sensor feeds and investor data products. You’ll be the person who can look at a new source, pick the right pattern for it, build it, and know when and where it will strain.

You’ll thrive here if you like owning a work-stream end-to-end: design doc to production to iteration, without needing the thinking done for you. You’re equally comfortable shaping architecture and getting your hands dirty in the code.

What you’ll do

• Design and own our data pipelines.
• Build and maintain robust ETL workflows across a deliberately diverse set of sources.
• Make sound architecture calls.
• Engage directly with the source.
• Build for reliability.
• Contribute to the platform.
• Use AI as a lever, not a crutch.
• Help shape what’s next.

What we’re looking for

• Data engineering depth.
• Architectural judgement.
• Software-engineering fundamentals.
• Autonomy.
• Versatility.
• Communication.
• Locality.

Nice to have

• Experience building, deploying, and maintaining machine-learning pipelines in production.
• Experience with Retrieval-Augmented Generation, and with vector or graph databases.
• Familiarity with a modern data stack.
• Experience with the Cloudflare ecosystem, or with serverless/edge-first architectures.
• Familiarity with event-driven architectures and message brokers/queues.
• Experience in fintech, climate, or other data-heavy / decision-support domains.
• A genuine interest in sustainability, nature recovery, and conservation finance.

Why Join Great Yellow?

• Be part of an innovative start-up that’s breaking new ground in finance and ecological restoration.
• Engage in meaningful work with the potential to make a lasting impact on the planet.
• Work alongside a passionate and diverse team in an environment that values flexibility, collaboration, autonomy, and growth.
• Our culture is built on three principles: All for the Hive, Shameless Ambition, and Design the Future.
• We’re big believers in flexibility — work where you do your best thinking — but we also value getting together in our office to share ideas (and coffee).

Apply for the job

Do you want to join our team? Then we’d love to hear about you!