You will get a reliable API integration, backend bug fix, or custom script
Project details
Need a fast, reliable solution for a broken API, backend bug, or custom logic script? I provide clean, well-tested fixes and integrations with fast turnaround times.
What I can help you with:
• REST API Integration: Connecting third-party services, endpoints, payment gateways, and webhooks.
• Bug Fixing & Troubleshooting: Resolving backend logic errors, API response failures, and runtime issues.
• Database Management: Writing and optimizing SQL queries, schema updates, and database fixes (PostgreSQL, MySQL).
• Custom Scripts: Building backend scripts and automation modules in Node.js, JavaScript, or Java.
How I work:
1. Deep analysis of the root cause.
2. Clean code implementation following best practices.
3. Full local and staging testing before final delivery.
Send me your project requirements or code repository, and let’s get it fixed quickly.
What I can help you with:
• REST API Integration: Connecting third-party services, endpoints, payment gateways, and webhooks.
• Bug Fixing & Troubleshooting: Resolving backend logic errors, API response failures, and runtime issues.
• Database Management: Writing and optimizing SQL queries, schema updates, and database fixes (PostgreSQL, MySQL).
• Custom Scripts: Building backend scripts and automation modules in Node.js, JavaScript, or Java.
How I work:
1. Deep analysis of the root cause.
2. Clean code implementation following best practices.
3. Full local and staging testing before final delivery.
Send me your project requirements or code repository, and let’s get it fixed quickly.
Programming Languages
HTML & CSS, JavaScript, JavaWhat's included
| Service Tiers |
Starter
$25
|
Standard
$50
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 4 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 1 | 2 |
Design Customization | - | - | |
Content Upload | - | - | |
Responsive Design | - | ||
Source Code |
Frequently asked questions
About Alexis
Full Stack Developer | REST API, Bug Fixing & Backend Specialist
Ceuta, Spain - 3:32 am local time
I am a Full Stack Developer specializing in backend architecture, REST APIs, and multiplatform application logic. My primary focus is solving technical problems with clean, maintainable code and fast turnaround times.
What I can help you with:
• Bug Fixing & Troubleshooting: Resolving errors in backend services, web components, and logic scripts.
• API Development & Integration: Building secure RESTful endpoints, connecting third-party services, and webhook setup.
• Database Management: SQL design, schema optimizations, and structured query writing (PostgreSQL, MySQL).
• Full Stack & Multiplatform Development: Building responsive web and mobile application modules.
My tech stack includes:
• Languages & Frameworks: Java, JavaScript (Node.js), TypeScript, SQL, HTML5/CSS3
• Databases & Tools: PostgreSQL, MySQL, Git, Postman, REST APIs
I prioritize clear communication, rapid response times, and delivering thoroughly tested solutions. Send me a message with your project details or repository, and let's get it resolved today.
Steps for completing your project
After purchasing the project, send requirements so Alexis can start the project.
Delivery time starts when Alexis receives requirements from you.
Alexis works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Environment Review
I analyze your project files, API docs, and error logs to identify the exact issue and set up the local environment.
Development & Testing
I write the clean fix or integration, thoroughly testing all edge cases and responses.