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AI infrastructure & operations

Keep AI workflows running through real failures.

We build the runtime around your AI: durable jobs, bounded retries, controlled writes, deployment pipelines, and telemetry that lets your team see failures, recover work, and manage operating cost.

System architectureStacklane engineering
Admit → Execute → Commit → Operate
The engineering problem

A timeout does not prove a write failed.

A task API accepts an approved request, then the response is lost. Restarting the entire job can create a duplicate unless the runtime preserves request identity and checks the outcome.

Example integration surface
  • Temporal workflows
  • Idempotent adapters
  • OpenTelemetry
  • Versioned deployments

Inside the system

A runtime with explicit recovery boundaries.

Inspect an illustrative document-to-task job, from admission to operating telemetry. Infrastructure and integration choices depend on the workload and destination APIs.

Execution model01 / 04
Accepted work → verified outcome.Illustrative flowIngress queueJOB-042dedupe + quotaDurable workerModel → validatecheckpointTool gatePolicy checkApproval matchpayload-v1ReceiptTASK-208ConfirmedretryableBounded retry429 → backoffbudget ends → pauseNo approvalHold actionresponseunknownReconcile existing writerequest ID + payload matchOperateTraces / p95 latency / costAlerts / controlled rollout / runbooksOutcome events

Swipe to inspect the full diagram →

job-envelope.jsonExample record
job_id
JOB-042
dedupe_key
document-842:revision-3
state
accepted → queued

Follow the architecture as you scroll, or select a layer.

01

Accept a durable unit of work

Authenticate the caller, validate the payload, and assign a stable job identity. Persist accepted work before execution; apply tenant quotas, concurrency limits, and secret access boundaries.

Input
Authenticated event and document reference
Transform
Validate, deduplicate, persist, and enqueue
Output
Durable job with tenant and version
Scoped credentials and tenant isolationAdmission and concurrency budgets
02

Bound retries and preserve progress

Run model and API calls as separate activities with persisted completion state. Classify retryable errors, cap attempts and elapsed time, and pause exhausted jobs for an operator.

Input
Queued job and execution configuration
Transform
Run activities within time and retry budgets
Output
Validated result or explicit failure state
Per-call timeouts and total retry deadlineNo automatic retry of permanent errors
03

Make the approved action recoverable

Bind approval to the exact payload. Use destination-supported idempotency and a write ledger; reconcile ambiguous responses by request identity. If the destination cannot confirm the outcome, hold for review.

Input
Validated payload and matching approval
Transform
Submit with identity; confirm destination outcome
Output
Confirmed record or unresolved write hold
Changed payload requires new approvalNo blind resubmission after timeout
04

Observe, release, and recover

Correlate job, model, and tool spans with queue age, latency, and usage. Route alerts to named owners; use versioned rollouts, tested rollback procedures, and recovery runbooks.

Input
Job events, spans, usage, release version
Transform
Measure, alert, reconcile, and control rollouts
Output
Dashboards, incident records, operating decisions
Content redaction and retention limitsAgreed support hours and escalation ownership

Inspect the behavior

Change the failure. Inspect the recovery.

Synthetic job JOB-042 turns a document into an approved task. This example assumes a destination API with enforced request identity and reliable lookup; no live calls are made.

Illustrative system · Synthetic inputs
Input

The model returns a valid task draft. APR-019 approves payload-v1 before the task API is called.

Accept: passed
Model: passed
Write: passed
Confirm: passed
System decision

Task confirmed

The destination returns TASK-208 for the approved request. The ledger records confirmation, and the job completes with its request identity available for duplicate-event handling.

Request
JOB-042:create-task:v1
Approval
APR-019 · payload-v1
Destination
TASK-208 · confirmed

Verification specification

Define what passes.
Inspect what fails.

We turn expected behavior into repeatable tests and operating controls. Acceptance thresholds are agreed for your workflow, data, and the consequences of an error.

System propertyVerification methodRelease / operating condition

01Recovery and write integrity

Inject worker restarts, duplicate events, and lost responses; inspect the job ledger and destination records after reconciliation.

No unapproved writes; unknown outcomes stay unresolved until verified.

02Latency, capacity, and cost

Measure queue age, p95 completion time, retries, input/output tokens, and attributed cost per completed job under representative load.

Set workload-specific budgets and backpressure before rollout.

03Release and operating readiness

Rehearse worker deployment, rollback, alert routing, secret rotation, and recovery with the team responsible for operating the system.

Rollback does not undo external actions; reconciliation has an owner.

The handover

Engineering you
can build on.

A defined implementation, reviewable evidence, and an operating model your team can own.

How we work

Deployable runtime and infrastructure

Infrastructure configuration, scoped access, durable workers, queue policies, and versioned deployment pipelines in your environment.

Recovery and integration controls

Retry policies, approval-bound payloads, write ledger, reconciliation adapters, and failure-injection scenarios.

Operating handover

Traces, dashboards, alerts, cost visibility, and runbooks. Ongoing operations have agreed scope, hours, and escalation ownership.

Architecture decisions

Questions that
shape the build.

Can you work in our cloud environment?

We assess your infrastructure, identity controls, network boundaries, and deployment process before choosing the architecture. Hosting, data residency, vendor dependencies, and operational access are defined in the project scope.

What ongoing coverage is included?

Infrastructure delivery and ongoing support are scoped explicitly. For continuing operations, we agree the systems covered, support hours, response expectations, maintenance work, and escalation contacts. Coverage follows that written agreement.

Let’s scope your next build.

Bring a workflow, a product brief, or an AI system that needs to ship.

Discuss your project