You will get Secure Java Code Execution Sandbox (Docker + API Integration)
Project details
🚀 Run Java code safely on your server with full Docker sandboxing!
I’ll set up a secure Java code execution environment using Docker sandboxing and a custom API — so your users or students can safely compile and run Java code without risking your server.
Perfect for:
• EdTech platforms 💡
• Coding assessment systems
• Interactive student playgrounds
• Online Java learning environments
🔧 What’s Included
✅ Install and configure OpenJDK (latest stable version)
✅ Build a Docker-based sandbox image
✅ Configure isolated container execution via .sh runner
✅ Secure API endpoint (PHP-based) to trigger code runs
✅ Frontend Playground (Bootstrap + JS) to test code live
✅ Logging and safety features (CPU/memory limits, no network access)
I’ll set up a secure Java code execution environment using Docker sandboxing and a custom API — so your users or students can safely compile and run Java code without risking your server.
Perfect for:
• EdTech platforms 💡
• Coding assessment systems
• Interactive student playgrounds
• Online Java learning environments
🔧 What’s Included
✅ Install and configure OpenJDK (latest stable version)
✅ Build a Docker-based sandbox image
✅ Configure isolated container execution via .sh runner
✅ Secure API endpoint (PHP-based) to trigger code runs
✅ Frontend Playground (Bootstrap + JS) to test code live
✅ Logging and safety features (CPU/memory limits, no network access)
Programming Languages
PHP, JavaScript, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$180
|
Advanced
$250
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 1 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100
Additional Revision
+$5
19 reviews
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JC
Joe C.
Apr 27, 2026
Re:amaze Chat Automation Expert
Noman is amazing!!! He is super fast, proactive, creative and invests himself in the vision of your project. He is prompt, will conduct video calls as needed, and will bring fresh ideas. You will not find a better partner than Noman so if you find his profile, hire him without question.
JC
Joe C.
Apr 27, 2026
Godaddy Website needs Email Integration
Noman is amazing!!! He is super fast, proactive, creative and invests himself in the vision of your project. He is prompt, will conduct video calls as needed, and will bring fresh ideas. You will not find a better partner than Noman so if you find his profile, hire him without question.
AA
Alan A.
Apr 27, 2026
Paid Pilot: WordPress Setup for Traffic Spike Handling and Basic Attack Mitigation
Noman completed the pilot successfully and provided the requested Trafficmind evidence after testing. He configured the required setup on the assigned domain, shared clear screenshots for the security and caching configuration, and followed up with the relevant traffic and blocked IP data after the load test. The final delivery met the requirements of the task.
EH
Eric H.
Mar 22, 2026
Server Stability Fix & PHP-FPM Optimization
Noman consistently brings his immense knowledge and problem solving ability to work, and, if needed, brings along urgency. I had a site down due to a server issue and he got it back up and running quickly.
AB
Artun B.
Feb 27, 2026
Full Stack Laravel Developer (Backend + Frontend) + Deployment (AWS/VPS)
Great freelancer to work with. He completed the Laravel project exactly as agreed and delivered with good quality. His work covered backend development, MySQL database optimization, frontend UI, API integrations, authentication/roles, bug fixing, performance improvements, and full deployment setup including domain, SSL, cron jobs, queues, storage, and Git-based workflow. Professional, reliable, and technically strong. I would happily recommend Noman and work with them again.
About Noman
WordPress Performance Specialist | Fix Slow Sites, Bugs & Revenue Loss
91%
Job Success
Karachi, Pakistan - 4:48 am local time
Most of the projects I take on come after 1–2 developers failed to fix the root cause.
“You solved in 30 minutes what I couldn't fix in 45 days.”
That’s typically where I step in.
I’m a Top Rated WordPress specialist with 10+ years of experience helping businesses fix performance issues, recurring bugs, and unstable systems — especially when they’ve already tried quick fixes that didn’t last.
Most WordPress problems aren’t actually WordPress problems.
They come from deeper layers — server configuration, database load, or poorly integrated plugins.
That’s where I focus.
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WHO I WORK BEST WITH
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— Businesses losing traffic due to slow load times or poor Core Web Vitals
— WooCommerce stores with checkout issues or revenue drop-offs
— Agencies dealing with unstable client sites and recurring bugs
— Founders who inherited a broken system and need it fixed properly
I work best with projects where performance issues are already costing real traffic or revenue — not early-stage experiments.
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WHAT I FIX (BUSINESS-FOCUSED)
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1. Critical bugs & instability
Fixing issues that directly impact users and revenue — checkout failures, login issues, plugin conflicts, PHP errors, and post-update breakages.
2. Performance & speed optimization
Improving real-world speed and performance — fixing Core Web Vitals, increasing Google PageSpeed scores, and eliminating bottlenecks in database, caching, CDN, and server configuration that directly impact user experience and conversions.
3. WooCommerce & system reliability
Stabilizing stores and systems — fixing checkout flows, improving scalability, and eliminating recurring failures that affect conversions.
4. Custom development (built to last)
Themes, plugins, API integrations, and backend systems designed for long-term stability — not quick patches.
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HOW I WORK (WHY FIXES LAST)
─────────────────────────
Most developers fix what’s visible.
I work across all layers where issues actually originate:
→ WordPress & plugin layer
→ PHP & application logic
→ Database performance
→ Server & infrastructure
The key is identifying the correct layer.
Once that’s clear — the fix becomes straightforward and permanent.
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RESULTS CLIENTS SEE
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— Bugs resolved after multiple failed attempts by other developers
— 60–80% faster load times → better user experience & SEO
— Checkout issues fixed → recovered lost revenue
— Stable systems → fewer recurring problems and support costs
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WHAT YOU CAN EXPECT
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Clear communication.
Honest diagnosis.
Solutions that actually last.
No guesswork. No temporary fixes.
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NEXT STEP
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Send me your website URL and a short description of the issue.
I’ll review it and tell you what’s actually causing the problem — before we discuss anything else.
Steps for completing your project
After purchasing the project, send requirements so Noman can start the project.
Delivery time starts when Noman receives requirements from you.
Noman works on your project following the steps below.
Revisions may occur after the delivery date.
Kickoff & Requirements – confirm server access and hosting environment.
Setup & Configuration
install Java, build Docker sandbox, secure permissions.