You will get I will fix slow APIs, high CPU usage, and optimize your backend performance
Project details
Slow system? High CPU? Users complaining? I diagnose and fix backend performance issues fast.
If your app is slow, crashing, or consuming too much CPU, you don’t need a rewrite you need the right diagnosis.
I specialize in fixing:
• High CPU usage
• Slow APIs and database queries
• N+1 query problems
• Memory leaks and inefficient jobs
I work with:
• MySQL query optimization
• Redis caching
• Backend profiling & bottleneck detection
Not sure which service fits your needs?
Send me a message I’ll quickly assess your system and suggest the right solution.
If your app is slow, crashing, or consuming too much CPU, you don’t need a rewrite you need the right diagnosis.
I specialize in fixing:
• High CPU usage
• Slow APIs and database queries
• N+1 query problems
• Memory leaks and inefficient jobs
I work with:
• MySQL query optimization
• Redis caching
• Backend profiling & bottleneck detection
Not sure which service fits your needs?
Send me a message I’ll quickly assess your system and suggest the right solution.
Programming Languages
PHP, JavaScript, GoCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 1 day | 1 day | 1 day |
Number of Revisions | 0 | 1 | 2 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments | - | - | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$50Frequently asked questions
2 reviews
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MA
Mike A.
Jun 23, 2021
Looking for a pro in Php, Html, Api Key
Jonathan is a true Professional, Trust worthy, understands the tasks very well and offer solutions. Open minded, great skills in communication.
I would strongly recommend Jonathan for anyone looking for his services.
I would strongly recommend Jonathan for anyone looking for his services.
DO
Dominic O.
Apr 16, 2020
Looking for PHP Codeigniter and Wordpress developer and more
Jonathan took a task and completed it in 1/10th the time that others estimates/quoted. Very efficient. Communication was great throughout. Much appreciation for this guy.
About Jonathan
Senior Backend & DevOps Expert | Fractional CTO
Mandaluyong City, Philippines - 4:44 pm local time
With 10+ years as a CTO and Senior Software Engineer, I specialize in backend performance, server optimization, and observability. I’ve rescued systems that were crashing, slowed down by heavy load, or invisible due to lack of monitoring so businesses can focus on growth, not downtime.
In addition to technical delivery, I am available as a Fractional CTO, providing strategic guidance on technology, architecture, and team scaling helping startups and SMEs make smart technical decisions without a full-time CTO.
Here’s how I can help you:
Backend Performance & Debugging
• Fix high CPU usage, slow APIs, and memory leaks
• Optimize MySQL/PostgreSQL queries and caching (Redis)
• Identify N+1 issues and slow background jobs
Production VPS / Server Setup
• Secure and hardened Linux servers (AWS, DigitalOcean, VPS)
• Web stack installation (Nginx, PHP, Node.js, DB)
• CI/CD ready environments and backup strategies
Monitoring & Observability
• Metrics, logs, and tracing for full system visibility
• Dashboards with Grafana and alerts for proactive problem-solving
• Error tracking with Sentry and tracing with OpenTelemetry
Incident Investigation & Root Cause Analysis
• Debug production issues fast (crashes, errors, deadlocks)
• Identify root causes and implement reliable fixes
• Provide recommendations to prevent recurring problems
Fractional CTO Services
• Technology strategy and roadmap planning
• Architecture guidance and team scaling advice
• Vendor & tool selection for cost-efficient, high-quality results
• Technical risk assessment for startups and growing businesses
Why work with me?
• I don’t just “install servers” or “run commands” I solve real business problems
• You get actionable results, not just scripts or tutorials
• I communicate clearly and work in a structured, documented process
• Available for strategic CTO-level guidance without a full-time hire
Industries & Tech Stack:
• Laravel, Node.js, Go backends
• MySQL, PostgreSQL, Redis
• AWS, DigitalOcean, Linux VPS
• Monitoring: Grafana, Prometheus, Sentry, OpenTelemetry
How I work:
• Assess your system, gather metrics, and identify pain points
• Implement fixes, optimizations, and monitoring
• Deliver a stable, production-ready system with documentation
• Optional ongoing support for high-availability and monitoring
• Strategic guidance as your fractional CTO
Ideal Clients:
• Growing SaaS platforms
• E-commerce systems with high traffic
• Startups launching new apps
• Businesses that want reliable, monitored, and fast systems
• Founders seeking fractional CTO guidance
Steps for completing your project
After purchasing the project, send requirements so Jonathan can start the project.
Delivery time starts when Jonathan receives requirements from you.
Jonathan works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Assessment & Access Setup
Review your issue and gather requirements. Secure access to server, database, and codebase
Deep Diagnosis & Root Cause Analysis
Analyze logs, performance metrics, and queries. Identify bottlenecks, crashes, or misconfigurations