Scalable Monitoring and Observability for a Growing SaaS Platform

Industry

SaaS / Cloud Services

Client

Mid-sized SaaS provider with a user base spanning North America and Europe

Objective

To build a reliable, scalable, and proactive monitoring and observability infrastructure without vendor lock-in, enabling the engineering team to detect, troubleshoot, and prevent system issues in real-time.

Business Challenge

The client was scaling rapidly and expanding its microservices architecture across multiple Kubernetes clusters. Their existing monitoring tools—tied to a commercial APM solution—were becoming prohibitively expensive and lacked flexibility in integration with their open-source stack.

Their goals were to:

• Reduce costs by moving away from a commercial monitoring vendor.

• Improve visibility across distributed services and infrastructure.

• Set up proactive alerting and automated remediation workflows.

• Consolidate logs, metrics, and traces into a unified view.

Sentineli’s Approach

Our team deployed a fully managed, open-source observability stack comprising:

• Icinga2 for host and service monitoring

• Prometheus for metric collection and alerting

• Grafana for visualization and dashboarding

• Elastic APM for distributed tracing and application-level observability

• Loki + Fluent Bit for log aggregation

We tailored the deployment with custom playbooks, dashboards, and alert rules aligned to the client's SLAs and engineering workflows.

Key integrations included:

• Kubernetes-native service discovery

• Slack and MS Teams notifications

• Auto-scaling dashboards based on service topology

• Synthetic monitoring for key APIs

Impact Delivered

• 50% Reduction in Monitoring Costs by eliminating commercial tooling

• Improved MTTR by 40% due to real-time alerting and root cause dashboards

• 99.98% System Uptime Maintained over the last 12 months

• Onboarding Time for Engineers Reduced by 60% via intuitive Grafana dashboards and unified data streams

Client Testimonial

"The Sentineli team transformed our visibility across systems. Their open-source expertise helped us scale monitoring without breaking the bank—and gave our engineers confidence to deploy faster."
— CTO, SaaS Platform Client