We build the systems that store, move, and answer your data.
Stratorys is a data and software engineering practice based in Paris. We design data and software architecture for teams working at scale. We help choose the right storage and query engines, shape reliable data flows, and turn knowledge earned through practice into code that lasts.
What we do
We design and build the systems that collect, move, store, and query large volumes of data. The work covers architecture, engine selection, pipelines, performance critical components, and reliability in production, and how we capture domain knowledge as knowledge as code.
How we engage
Consulting. Advisory engagements cover architecture reviews, storage and query engine selection, performance audits, technical roadmaps, and team mentoring. They typically run for one to six weeks and finish with written recommendations.
Delivery. For delivery work, we implement new services, major refactors, pipelines, and performance critical components. We build alongside your team and hand over running, documented systems.
How we work
Every engagement follows the same rhythm. During Discovery, we learn your data, constraints, and what "good" means for you. During Assessment, we characterise the workload, evaluate options, and measure where it matters. During Build, for delivery engagements, we implement, refactor, and harden in short cycles against production metrics. During Handover, we leave documentation, runbooks, and encoded knowledge so your team can run and evolve the system independently.
The stack we work in
Rust, SQL, and Python; query and storage engines such as ClickHouse, DataFusion, and Ballista; Apache Arrow, Parquet, and Kafka for formats and transport; and OpenTelemetry, SLOs, and runbooks for reliability.
The people behind Stratorys
Stratorys is led by Lucas Jahier, founder of the company and a software and data engineer based in Paris. His work focuses on data intensive systems, backend services, query engines, and production reliability.
When a project needs deeper specialist knowledge or more hands, Stratorys works with a trusted network of senior engineering partners. The team is shaped around the problem rather than around a fixed staffing model.
You can find Lucas on GitHub and LinkedIn.
Where to find us
GitHub, LinkedIn, and X. Reach us at [email protected], or book a technical review.