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You will get I will debug and fix crashes, errors, and production issues fast

Jonathan T.Status: Offline
Jonathan T.
5.0
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Jonathan, priced and ready to go.
Jonathan T.Status: Offline
Jonathan T.
5.0
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Jonathan, priced and ready to go.

Project details

System down? Errors everywhere? I quickly find the root cause and fix it.

Production issues are stressful and expensive. I specialize in fast root cause analysis:
• Random crashes
• High CPU spikes
• Deadlocks & DB issues
• Broken APIs
• Queue/job failures

I don’t guess I trace, fix, and prevent future issues

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, Go
Coding Expertise
Performance Optimization, Security
What's included
Service Tiers Starter
$100
Standard
$300
Advanced
$700
Delivery Time 1 day 1 day 1 day
Number of Revisions
012
Bug Investigation
Fix Documentation
Detailed Code Comments
-
-
-
Optional add-ons You can add these on the next page.
Additional Revision
+$50

Frequently asked questions

5.0
2 reviews
100% Complete
(2)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

MA

Mike A.
5.00
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.

DO

Dominic O.
5.00
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.
Jonathan T.Status: Offline

About Jonathan

Jonathan T.Status: Offline
Fractional CTO for Startups | Cloud Architecture & Tech Strategy
5.0  (2 reviews)
Mandaluyong City, Philippines - 5:56 pm local time
I help startup founders make the technical decisions that determine whether their product scales, stays reliable, and controls cost — without the expense of a full-time executive hire.

For 5 years I served as Co-Founder and CTO of a startup, where I owned the company's entire technology direction: architecture, infrastructure, engineering hires, vendor decisions, budgeting, and long-term technical strategy. Before that, I spent 10+ years as a software engineer building production systems — loyalty platforms, custom CRMs, product information systems, digital wallets — for businesses ranging from small companies to large enterprises.

I've since brought that same fractional-CTO function to other founders on Upwork: stepping in to make architecture calls, run technical due diligence, and lead engineering direction for companies that need senior technical leadership but aren't ready to hire one in-house full-time.
Fractional CTO Services

Technology roadmap planning
• Software architecture reviews & technical due diligence
• Product technical planning
• Engineering team leadership & developer mentoring
• Vendor evaluation and selection
• Cost optimization & infrastructure planning
• Risk assessment & production incident response
• Startup technology consulting

When hands-on execution is needed, I can also lead or build:
Backend Engineering

• Laravel, Go, Node.js backend development
• REST APIs and microservices
• Database optimization (MySQL & PostgreSQL)
• Redis caching and queue systems
• Payment gateway integration
• Scalable application architecture

Cloud & Infrastructure

• Linux server administration
• AWS, DigitalOcean, UpCloud, Hetzner VPS deployment
• Nginx, security hardening, CI/CD pipelines
• Backup, disaster recovery, high-availability infrastructure

Monitoring & Production Reliability

• Grafana, Prometheus, OpenTelemetry, Sentry
• Root cause analysis and performance tuning
• Production incident response

Why clients work with me
I bring both engineering execution and executive judgment. I've spent years making the calls that directly affect a company's cost, growth, and stability — not just writing the code, but deciding what should be built, when to rebuild, and when to hold the line. When you work with me, you get someone who can think like an engineer, an architect, and a CTO.

Tech Stack
Languages & Frameworks: Go, PHP, Node.js, TypeScript
Databases: MySQL, PostgreSQL, Redis
Infrastructure: Linux, AWS, DigitalOcean, UpCloud, Hetzner, Nginx
Observability: Grafana, Prometheus, OpenTelemetry, Sentry

Ideal Clients

• Founders looking for a Fractional CTO
• SaaS startups and growing technology companies
• Teams that need senior technical leadership without hiring a full-time executive
• Businesses modernizing legacy systems or scaling past their current architecture

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.

Client provides server/app access, logs, and error details

I analyze logs and metrics for root cause

Review the work, release payment, and leave feedback to Jonathan.