Technology
How we build, and why it holds up
The stack matters less than the principles it is applied with. Both are below. Judge us on the principles.
Architecture principles
Rules we do not trade away for speed
These are the decisions that separate a system that survives a bad day from one that quietly does the wrong thing.
Fail closed under degradation
A missing price or a stale feed must tighten controls, never bypass them. Every control states explicitly what it does when its inputs go away.
Idempotent by construction
Retries, restarts and replays are normal operating conditions. Order placement and state transitions are designed so repetition cannot double-book.
One source of truth per fact
Duplicated writers drift, and drift shows up as a P&L mismatch nobody can explain. We assign each fact a single owner and let others read it.
Observable before it is fast
You cannot tune or trust what you cannot see. Structured logs, metrics and traces are part of the first release, not a later project.
Engineering stack
Proven tools, chosen for the job
We favour mature technology with predictable operational behaviour over whatever is newest.
Backend & services
- Java / Spring Boot
- Python
- Go
- Node.js
- gRPC & Protobuf
- REST
Real-time & messaging
- WebSockets
- Kafka
- Redis Streams
- Event sourcing
- Pub/Sub fan-out
Data
- PostgreSQL
- TimescaleDB
- Redis
- ClickHouse
- Time-series archives
Frontend
- React
- Next.js
- TypeScript
- Real-time dashboards
- Charting libraries
Cloud & infrastructure
- AWS
- Docker
- Kubernetes
- Terraform
- Ansible
- GitHub Actions
Observability
- Structured logging
- Metrics & tracing
- Alerting
- Incident runbooks
Security & compliance
Built for environments that get audited
Regulated firms cannot retrofit controls after the fact. We treat access, retention and traceability as architectural concerns from the outset.
- Least-privilege access and secret rotation
- Encryption in transit and at rest
- Immutable, queryable audit trails
- Reproducible builds and deployments
- Environment isolation and change control
- Dependency and vulnerability scanning
Let us look at your systems.
Tell us what you are building or where your current platform is straining. We will come back with a considered technical view, not a sales deck.
We reply to every enquiry within one business day.