Case Studies — InfraCore Technologies

These are representative scenarios built from the type of incidents we regularly handle, with client details anonymized or generalized — not published, named customer case studies. Ask us on a call for references.

TECHNICAL PUBLICATIONSignal → Root cause → Action → Validation → OutcomeRepresentative scenarios are intentionally generalized; published customer references can be discussed directly.

INTERNET↓ALB↓EC2 / RDScapacity · cost · recovery

AWS · Infrastructure optimization

Right-sizing an over-provisioned AWS footprint

FinTech platform — India

ProblemEC2 and RDS costs had crept up over a year with no one actively reviewing instance sizes or unused resources.

ActionAudited EC2/RDS utilization, right-sized oversized instances, cleaned up unattached EBS volumes and idle load balancers, and set a recurring monthly cost review.

OutcomeMeaningful monthly cost reduction with no change in application performance, plus a standing review cadence to prevent drift.

Reduced

Monthly spend

None observed

Performance regressions

Monthly

Review cadence set

12:41ALERT

12:44ENGINEER ASSIGNED

12:51ROOT CAUSE

13:08REMEDIATION

13:20VALIDATED

Linux · Production incident

Diagnosing an intermittent API outage under load

Healthcare application — 150+ servers

ProblemA clinical-records API intermittently timed out during peak hours, with no obvious single cause.

ActionCorrelated system metrics, application logs and network traces across the affected hosts; found a file-descriptor limit being hit under concurrent load.

OutcomeLimits raised and the service reconfigured to fail gracefully instead of hanging, eliminating the timeouts.

None reported

Recurrences since fix

<15 min

First response

Documented

Root cause

QUERY PLANorders / checkoutINDEX → REPLICA → VALIDATEperformance path

Database · Performance optimization

Fixing slow checkout queries during peak traffic

E-commerce platform — AWS

ProblemCheckout page load times spiked during sale traffic, traced to slow queries on the orders table.

ActionReviewed query plans, added targeted indexes, and moved a reporting query off the primary onto a read replica.

OutcomeCheckout query times dropped sharply and stayed stable through the next high-traffic event.

Faster

Query time

Stable

Through next peak

No outage

Service interruption

FINDINGRDP EXPOSEDREMEDIATE → VPN / MFA✓ VALIDATED

Windows · Security remediation

Closing exposed RDP access after a routine audit

SaaS platform — Windows infrastructure

ProblemA security review found RDP open to the public internet on two Windows servers, left over from a past migration.

ActionLocked RDP down to a VPN-only source, enforced MFA on admin accounts, and reviewed the rest of the security-group rules for similar drift.

OutcomeExposure closed with zero disruption to the team's normal access, and a quarterly access review put in place.

2 → 0

Exposed ports

No disruption

Team access

Quarterly

Reviews set

Nginx→Cache→PHP-FPM→Databaseedge → runtime → data

Web server · Nginx / Apache performance

Cutting page load time with caching and compression

Media / content platform — high-traffic site

ProblemA content-heavy site was serving every request uncached, with no gzip/Brotli compression, driving up both load time and bandwidth cost.

ActionConfigured reverse-proxy caching for static and semi-static content, enabled compression, and tuned keep-alive and worker settings for the traffic pattern.

OutcomePage load times dropped noticeably and origin server load fell, with no visible change for site visitors other than speed.

Faster

Page load time

Lower

Origin server load