You will get Build or Fix a Secure API with Node.js, PostgreSQL & GraphQL Fast Delivery
Project details
I offer a secure and scalable API development service using Node.js, PostgreSQL, and GraphQL. With years of experience building APIs for government, educational, and startup platforms, I focus on clean code, data integrity, and fast delivery. My goal is to help you launch reliable backend services that meet your business needs. Each project includes authentication, validations, and full documentation. Whether you need a quick fix or a fully documented API module, I work with transparency, efficiency, and a developer mindset. Let's scale your system the right way.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$180
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$25 - $60
Additional Revision
+$20
Additional Page
(+ 1 Day)
+$30
Design Customization
(+ 1 Day)
+$35
Content Upload
(+ 1 Day)
+$25Frequently asked questions
About David
Full Stack Dev | Angular, Node.js, GraphQL, PostgreSQL, AWS/GCP
Mexico City, Mexico - 7:08 pm local time
My background includes leading digital transformation projects for federal government institutions, political parties, financial institutions, and education systems. I’ve developed and maintained large-scale platforms, administrative dashboards, mobile apps, and real-time data systems aligned with strict compliance and high-availability requirements.
What I can help you with:
• Frontend & backend web applications (Angular + Node.js + GraphQL)
• Cross-platform mobile apps (Ionic for Android & iOS)
• Database modeling & migration (PostgreSQL, MySQL, Oracle, MongoDB)
• API development (REST & GraphQL with authentication and security best practices)
• Cloud deployment & architecture on GCP and AWS
• Agile project execution and technical documentation
I work with a strong focus on:
• Clean and maintainable code
• Transparent communication and timely delivery
• Understanding your business goals to provide real value
If you’re looking for a skilled professional who can bring your idea to life or enhance an existing system, let’s connect. I’m available up to 32 hours per week and open to both fixed-price and hourly projects.
Let’s build something great together.
Steps for completing your project
After purchasing the project, send requirements so David can start the project.
Delivery time starts when David receives requirements from you.
David works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Briefing & Planning
I’ll review your requirements, clarify goals, and define the API structure and database schema.
API Development
I’ll build the required endpoints using Node.js and PostgreSQL, with authentication, validations, and clean architecture.