Vaux  /  Services  /  Site Reliability
/ 02 — Discipline

SLIs you can defend. Error budgets you can spend.

We instrument what matters, draw the line between reliable and over-engineered, and run the room when something fails at 03:00 UTC. Reliability stops being a quarterly conversation and becomes a measurable engineering output.

Capabilities

What we build.

/ 01

SLI/SLO design

Service-level indicators defined against user-visible outcomes. Targets set by negotiation, not by aspiration.

/ 02

Observability

Metrics, structured logs, and distributed traces. OpenTelemetry, Prometheus, Loki, Tempo, or your vendor of choice.

/ 03

Incident response

On-call rotations, incident command, paging hygiene, blameless postmortems with action items that actually close.

/ 04

Capacity planning

Forecasting, headroom analysis, autoscaling design, and load-test programmes that mirror production traffic shape.

/ 05

Error budgets

Policy that ties reliability burn to release velocity. Spent budgets pause shipping; surplus funds feature work.

/ 06

Resilience engineering

Chaos exercises, dependency mapping, graceful degradation patterns, region failover drills with named recovery objectives.

Engagement spec

How an engagement is shaped.

Duration 12–20 weeks typical. Reliability programmes are continuous; we hand over to internal SRE within a fixed window.
Deliverables SLI/SLO catalogue, observability stack, runbooks, on-call rotations, postmortem templates, error-budget policy.
Standards Google SRE practices, NIST 800-34 contingency planning, business-continuity engineering.
Instrumentation Availability (30d), p50/p95/p99 latency, MTTR, MTTD, change-failure rate, error-budget burn rate.
Handover Documented operating model. Vaux engineers shadow-rotate, then exit. Quarterly reliability review optional.

Bring us the system that cannot drop a request.

Send the latest incident report or the dashboard you do not trust. We respond within one business day, UTC.

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