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StackExpert Infrastructure Engineering
ENGINEERING SERVICE CATALOG

Infrastructure Engineering Services & Transparent Pricing.

Fixed-scope engineering deliverables, comprehensive diagnostic assessments, and 24/7 emergency incident mobilization. Every service is executed directly on your existing cloud, server provider, or bare-metal environment.

Upfront predictable pricing Zero vendor / host lock-in Verifiable technical reports

Incident Response

24/7 mission-critical outage mobilization and war room response.

1 service
emergency-website-down 15-Min Emergency

Emergency 15-Minute Outage Response

Senior engineering intervention when a production system is unavailable or critically degraded.

Technical Deliverables:
Lead Incident Commander assignment, kernel logs inspection, database deadlock recovery, web server crash remediation, and live telemetry.
Prerequisites: Outage Symptoms, Last Working Time, Recent Changes
from $950.00 SLA: 15m response
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Infrastructure

Base OS, web server, and runtime concurrency tuning.

3 services
php-fpm-tuning 15-Min Emergency

PHP-FPM Concurrency & Memory Tuning

Resolve PHP worker saturation and reduce 502/504 failures through workload-specific pool engineering.

Technical Deliverables:
Dynamic vs static pool calculation based on available RAM, OPcache JIT configuration, max_children tuning, and slowlog trace capture.
Prerequisites: Php Version, Approximate Concurrent Users
$300.00 SLA: 30m response
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linux-server-engineering Fixed Price

Production Linux Server Baseline Setup

Clean, hardened Linux infrastructure built for stability, security and predictable maintenance.

Technical Deliverables:
OS hardening, minimal attack surface package installation, systemd daemon management, network sysctl optimization, and SSH bastion setup.
Prerequisites: Target Distribution, Server Provider
$450.00 SLA: 60m response
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web-server-engineering 15-Min Emergency

Web Server Performance Engineering

Improve throughput and reduce gateway timeouts under high concurrency with optimized Nginx, OpenLiteSpeed, or Apache architectures.

Technical Deliverables:
Vhost tuning, FastCGI microcaching, SSL/TLS modern cipher suites, worker_rlimit_nofile, and connection queue tuning.
Prerequisites: Web Server Type, Active Domains
$350.00 SLA: 30m response
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Performance

Deep database optimization, index design, and low-latency memory caching.

2 services
mysql-performance-tuning 15-Min Emergency

MySQL High-Load Optimization

Diagnose slow queries, lock contention and database resource bottlenecks under production load.

Technical Deliverables:
InnoDB buffer pool sizing, redo log tuning, connection pooling, temporary table in-memory sizing, and query execution plan redesign.
Prerequisites: Database Version, Database Size Gb
from $650.00 SLA: 30m response
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redis-object-caching Fixed Price

Redis Caching Architecture

Reduce unnecessary database work through controlled application and session caching.

Technical Deliverables:
Redis 7 server configuration, maxmemory eviction policy (volatile-lru/allkeys-lru), Unix socket latency reduction, and persistence tuning.
Prerequisites: Application Framework, Available Memory Mb
$350.00 SLA: 60m response
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Security Hardening

Perimeter defenses, firewall configuration, WAF rules, and forensic cleanup.

3 services
waf-ddos-mitigation 15-Min Emergency

Edge WAF & Layer 7 DDoS Mitigation

Protect production endpoints from malicious traffic, scraping and application-layer attacks.

Technical Deliverables:
Cloudflare Enterprise/Pro ruleset synthesis, nginx rate limit zones, origin IP cloaking, and bad bot heuristic filtering.
Prerequisites: Dns Provider, Attack Symptoms
from $600.00 SLA: 15m response
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server-security-hardening Fixed Price

Production Linux Security Hardening

Reduce attack surface and strengthen the server against unauthorized access and brute-force activity.

Technical Deliverables:
Kernel sysctl network hardening, SSH public-key only, Fail2ban / CrowdSec intrusion prevention, UFW/iptables firewalling, and unneeded daemon purging.
Prerequisites: Server Os, Accessible Ports
$500.00 SLA: 60m response
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malware-forensics-cleanup 15-Min Emergency

Security Breach Remediation & Forensic Cleanup

Identify persistence, remove malicious components and restore a clean, hardened operating baseline.

Technical Deliverables:
ClamAV daemon scans, hidden PHP backdoor regex signatures, binary integrity checksum verification, crontab audit, and persistence remediation.
Prerequisites: Compromise Indicators, Environment Type
from $850.00 SLA: 15m response
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Technical Audits

Full-stack telemetry inspection with signed remediation roadmaps.

1 service
full-stack-audit Fixed Price

Infrastructure Architecture Audit

A non-destructive technical assessment of the production stack with a prioritized remediation plan.

Technical Deliverables:
Read-only telemetry audit delivering an immutable cryptographically signed technical report with concrete remediation recommendations.
Prerequisites: Infrastructure Overview, Primary Pain Points
$550.00 SLA: 60m response
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Need a Custom Infrastructure Scope or Pre-Engagement Assessment?

If your technical requirement spans multi-region failover, custom cluster topologies, or non-standard Linux distributions, talk directly with our systems architects.