Architecture design
Service boundaries, contracts, data and deployment, defined before writing code. Microservices, event-driven or a well-built monolith, depending on the product.
saikilabs:~$ trace --live
Software that holds under load.
We design architecture and build backends in Go, Rust and Node.js for products that can’t afford to go down as they grow.
p99 0 ms last 60 s · sample
Move fast without piling up debt. We design the architecture, build the critical services, and leave your team ready to own them.
- Measure before optimizing
- We instrument from the first deploy. Traces, metrics and logs show where the problem is; intuition only says where we think it is.
- Architecture follows the business
- Every technical decision has to make sense in product terms: cost, time to market and risk. If it can’t, we don’t make it.
- Your team keeps the knowledge
- We document every decision and work alongside your team. When we’re done, the system doesn’t depend on us.
From the first decision to the deploy. We step in where the problem is: in the design, the backend, the interface or the team.
Backend development
APIs, workers and data pipelines that handle real load with predictable latency.
Trace of a checkout request: GET /checkout, total 38 ms
- api-gateway (Node.js): starts at 0 ms and takes 38 ms
- auth (Node.js): starts at 1 ms and takes 2 ms
- orders-svc (Go): starts at 4 ms and takes 31 ms
- pricing (Rust): starts at 6 ms and takes 4 ms
- postgres (PostgreSQL): starts at 11 ms and takes 14 ms
- events (RabbitMQ): starts at 27 ms and takes 3 ms
Web and mobile apps
Interfaces that load fast and respond in under 200 ms, measured with Core Web Vitals.
- LCP
- 1.8 s
- INP
- 140 ms
- CLS
- 0.04
Technical consulting
Architecture audits, technical debt reduction and mentoring. Every recommendation is written down as a decision with its context.
Read replica for reports
- Context
- Reports run on the primary database. At month end, write p99 goes past 400 ms.
- Decision
- Move reports to a read replica, with up to 5 s of lag.
- Consequences
- Writes go back to their normal p99. Reports may show data up to 5 s old.
Visualizations use sample data.
Every tool, chosen for a reason.
Where latency matters
Concurrent services, APIs and hot paths where every millisecond and every megabyte counts.
- Go
- Rust
Where iteration speed matters
Fast-moving products, strictly typed and sharing types with the frontend.
- Node.js
- TypeScript
Where the interface matters
Web applications, fast sites and cross-platform mobile apps, measured with Core Web Vitals.
- Angular
- Astro
- Flutter
Where measuring matters
Standard instrumentation from the first deploy, with open metrics and dashboards. If your team already uses Datadog or New Relic, we build on it.
- OpenTelemetry
- Grafana
- Prometheus
The foundation
A transactional, predictable database, reliable queues and reproducible environments from laptop to production.
- PostgreSQL
- RabbitMQ
- Docker
- Kubernetes