Cloudwalker Solutions

Every Lambda.
Every account.
One platform.

Stratum gives engineering teams complete observability across serverless workloads — errors, performance, and cost — in a single portal that spans every AWS account and region.

What is Stratum

Serverless at scale, finally under control

When you run hundreds of Lambda functions across multiple AWS accounts and regions, understanding what's failing — and why, and what it's costing — becomes genuinely hard. CloudWatch helps, but it doesn't aggregate. It doesn't alert owners. It doesn't track spend per function.

Stratum is Cloudwalker's answer to that gap. It continuously monitors every Lambda in your organisation, surfaces errors in real time, notifies the right people automatically, and gives you a daily operational digest — all from a single portal your entire team can use.

Auto-discovery across accounts
Stratum scans every account and region every 15 minutes — no manual onboarding of individual functions required.
Alerts that reach the right person
Error spikes trigger instant Slack and email alerts to the function's tagged maintainer — not just a generic ops channel.
Cost visibility per function
See compute and CloudWatch Logs spend broken down to individual Lambda level, with month-over-month trend tracking.
Core capabilities

Everything you need to run serverless with confidence

01

Real-time error monitoring

Every Lambda error across all accounts and regions is captured, deduplicated, and stored within seconds. Spike thresholds (50, 100, 150+ errors) trigger automatic alerts to the maintainer and team Slack channel — no manual dashboards to watch.

Real-time Spike detection Slack & email
02

Full function inventory

A searchable, filterable registry of every Lambda in your organisation — runtime, maintainer, region, last modified date, log group presence, and monitoring status. Updated twice daily. Filter by account, owner, or region in seconds.

Auto-discovery Multi-account Multi-region
03

Performance metrics

Duration, invocation count, error rate, and concurrency pulled directly from CloudWatch Lambda Insights. Displayed in a frontend-friendly format without requiring engineers to navigate the AWS console or build custom dashboards.

Duration Invocations Error rate
04

Noise control

Suppress known, intentional exceptions (Step Function flows, expected business logic errors) with per-function ignore rules. Toggle monitoring on or off for any function at any time directly from the portal — without redeployment.

Ignore rules Enable/disable tracking
05

Daily intelligence reports

Every morning at 09:00 CET, Stratum publishes a structured error digest to Confluence and posts a Slack notification with a direct link. Your team starts the day knowing exactly what happened overnight — before anyone needs to ask.

Daily digest Confluence Slack
06

Cost monitoring

Per-function Lambda compute cost and CloudWatch Logs spend — both storage and ingestion — tracked across all accounts with 6-month trend charts. Configurable thresholds trigger alerts when costs spike unexpectedly or grow beyond defined limits.

Per-function cost Trend charts Cost alerts
How it works

Automated — from Lambda execution to your Slack feed

Step 1 — Collect

Cross-account log capture

CloudWatch subscription filters forward Lambda error events from every monitored account to a centralised ingestion pipeline. Stratum automatically creates and maintains these filters — you don't configure anything per function.

Step 2 — Process

Enrich, deduplicate & detect spikes

Each error event is enriched with maintainer tags and function metadata, deduplicated against recent events, and checked against spike thresholds. When thresholds are crossed, alerts fire within seconds — directly to the function owner.

Step 3 — Surface

Portal, reports & cost insights

All data lands in a single portal — filterable by account, region, owner, or date. Every morning a daily digest is posted automatically. Cost data is collected three times daily and presented with trend charts so you can spot runaway spend early.

Lambda Cost Monitoring

Know exactly where your serverless bill is going

Most AWS cost tools show spend at the account level. Stratum goes deeper — tracking compute cost and CloudWatch Logs spend (storage and ingestion) down to the individual Lambda function, across all accounts and regions.

Per-function compute cost — approximated from actual invocation and duration metrics, with the account-level Cost Explorer total as a control figure.
CloudWatch Logs spend — both log group storage size and monthly ingestion volume tracked separately, with cost per region applied.
6-month trend charts — see how spend evolves month over month and catch gradual cost growth before it becomes a surprise at billing time.
Configurable alerts — fixed-amount and percentage-increase thresholds for Lambda cost and log spend, adjustable from the portal without redeployment.
15 min
Error detection latency — function coverage refreshed every cycle
Multi-account
Single portal spanning all AWS accounts and regions
3×/day
Cost data collection cadence for up-to-date spend tracking
Zero config
New Lambda functions are monitored automatically — no manual setup

Built on AWS — fully managed within your own infrastructure

AWS Lambda Amazon CloudWatch Lambda Insights Amazon SQS Amazon DynamoDB Amazon S3 AWS Cost Explorer Amazon EventBridge AWS IAM Amazon Cognito SSM Parameter Store Amazon SNS

Stop flying blind in serverless

Stratum gives your team the visibility to triage faster, reduce noise, and keep Lambda costs under control — across every account you run.