Senior Data Engineer (Python, FastAPI, GCP) | Series C Scale-up | $100m raise in 2025 | Permanent | London (1 day a week on-site) | £100,000 - £105,000 + Equity

My client are a fast-scaling SaaS scale-up (Series C, $100m raised in 2025) that is redefining how global powerhouses operate.

Their ML/AI-enabled platform supports over 1,000+ brands worldwide, streamlining business processes like never seen before. With 10× revenue growth in the past year and aggressive expansion across the UK, US, and EU, the company is scaling at pace.

Data is the backbone: from APIs and pipelines to governance and observability, their data platform directly powers customer-facing products and AI-driven insights.

They’re now hiring a Senior Data Engineer to own and shape this platform, building scalable, production-grade systems that become the foundation for global brands.

Why join?

✨ Greenfield impact – inherit a live but early platform, define best practice across structure, testing, observability, and governance.

✨ Direct product impact – your APIs, pipelines, and orchestration power the platform that 1,000+ brands rely on every day.

✨ AI at the core – work on infrastructure that enables machine learning and intelligent decision-making across commerce.

✨ $50m investment – fueled expansion and innovation, backed by world-class investors.

✨ Career trajectory – Clear scope to grow into leadership as the data team scales.

✨ Remote-first culture – flexibility to work from anywhere

What you’ll be doing:

• API strategy & development – own and scale FastAPI endpoints that deliver real-time access to platform data.
• Data pipeline development – build ingestion and replication pipelines with best-in-class observability, latency, and resilience.
• Platform technical vision – influence architecture and orchestration, shaping how the business handles data at scale.
• Data quality & governance – embed testing, freshness, lineage, and monitoring to ensure reliability and trustworthiness.
• Collaboration – partner with engineers, product managers, and commercial teams to deliver production-grade solutions.

Tech stack and requirements:

• Python – must-have, with production-grade engineering expertise
• FastAPI – must-have, proven experience building APIs in production
• Google Cloud Platform (GCP) – must-have, ie BigQuery, Cloud Run, and Cloud Storage
• dbt – strong advantage, with scope to shape best practice
• Airflow / Composer – highly desirable for orchestration
• CI/CD – GitHub Actions (or similar)

Salary: £100,000 - £105,000 + Equity, PMI, Strong pension, clear progression routes

Location: Central London (1 day a week onsite)