Biostream · Principal Engineer
Biostream
Casualty monitoring, reporting and a Trusted Research Environment
I'm Principal Engineer at Biostream, building the systems behind its Nightjar medical intelligence platform: casualty monitoring and reporting from the point of care to command, and a Trusted Research Environment where data owners can collaborate without giving up custody of their data. Every part is designed safety first.
- Client
- Biostream
- Role
- Principal Engineer
- Year
- Aug 2026 to present
- Location
- London, hybrid
From point of care to command
I work on the casualty monitoring and reporting side of the platform. Medics capture a casualty record once, at the point of care, and it works offline and syncs as soon as connectivity returns, so treatment, risk, destination and handover details travel with the casualty. Planners and coordination teams then see a live picture of casualties, interventions, routes, capacity, blood and beds, with trends, forecasts and alerts that are backed by their sources.
A Trusted Research Environment
Alongside the operational system, I'm building an AI-native Trusted Research Environment. Researchers, analysts and data owners can work together on sensitive casualty data while each organisation keeps custody of its own datasets. Access is granted question by question, and provenance, limitations, review status and output controls are built in, so every result can be checked before it's released. Operational and research environments are kept separate.
Safety first, by design
In this field, software supports decisions that affect people's lives, so safety drives every design choice:
- People stay in charge The system prioritises attention and presents options, but people make the decisions.
- Evidence over assertion Wherever an insight informs a decision, its source, gaps, limitations and review status are shown.
- Security by design Compartmented access, encryption, full audit trails and explicit release controls.
- Data sovereignty Organisations keep custody of their data.
- Resilient in the field It keeps working in low-connectivity environments and complements existing systems rather than replacing them.
The platform
Nightjar brings one connected system with a different view for every role: Record for medics and clinicians, Command for planners, Evidence for researchers, and Tag, a wearable for continuous monitoring and triage that feeds the live picture.
