Founding Data Platform Architect for AI-Driven Insights

Stealth Startup; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Stealth Startup in London is hiring a Founding Data Platform Engineer to design and scale a first-principles data platform. You’ll tackle complex data from multiple sources, turning chaos into a reliable, secure foundation.

You’ll work with founders to shape architecture, be hands-on with Python, Airflow, dbt and distributed systems, and build infrastructure enabling autonomous software agents. This is a visa-sponsored, early-stage opportunity with high ownership and impact as the platform

Qualifications

• Experience building production-grade data platforms or infrastructure.
• Strong software engineering and system-design fundamentals.
• High proficiency in Python or another relevant programming language.
• Deep understanding of data pipelines, databases and warehouses.
• Experience reconciling data from multiple, heterogeneous sources.
• Hands-on experience with orchestration and transformation tools such as Airflow, Dagster or dbt.
• Familiarity with columnar data systems such as ClickHouse or DuckDB.
• Experience with distributed systems and third-party integrations.
• A pragmatic mindset and a strong bias towards shipping.
• Bonus: experience with semantic models, ontologies or knowledge graphs.

Responsibilities

• Design and scale the core data platform.
• Connect databases, warehouses and third-party business systems.
• Build reliable ingestion and integration infrastructure.
• Reconcile and unify data from multiple, heterogeneous sources.
• Develop flexible ways to model and interpret unfamiliar data.
• Shape the semantic models and ontologies for consistent meaning.
• Design reliable, observable orchestration for complex data workflows.
• Establish strong foundations for data quality, lineage and observability.
• Embed permissions, governance and security into the platform from the beginning.
• Build infrastructure that autonomous software agents can use reliably.

Skills

Python

Data platforms

Distributed systems

Data pipelines

Databases & warehouses

Tools

Airflow

Dagster

dbt

ClickHouse

DuckDB

Job description

Stealth Startup in London is hiring a Founding Data Platform Engineer to design and scale a first-principles data platform. You’ll tackle complex data from multiple sources, turning chaos into a reliable, secure foundation.

You’ll work with founders to shape architecture, be hands-on with Python, Airflow, dbt and distributed systems, and build infrastructure enabling autonomous software agents. This is a visa-sponsored, early-stage opportunity with high ownership and impact as the platform