About the role
Proton AI is hiring a Senior Data Engineer to build and own the Data Layer behind its wholesale distribution platform and AI products. The work spans ingestion from files, events, and APIs; raw, refined, and curated data models; and the serving layer used across the company. You will also build validation, reconciliation, lineage, backfill, and incremental loading systems so downstream teams and AI features can rely on accurate data.
The role combines hands-on engineering with architectural ownership. You will improve the layer’s design and scale, define data contracts with backend, AI, and product engineers, and use agentic coding tools such as Claude Code to ship reviewed production work. Proton requires 7+ years of hands-on data engineering experience and production ownership. The position is remote in Europe, with meaningful daytime overlap with the Boston team required.
Highlights
- Own pipelines and data architecture end to end.
- Work with batch, streaming, and API sources.
- Build trustworthy data systems for AI and product use.
- Remote in Europe; Boston team overlap is required.
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