You will get secure REST API development with Node.js, PostgreSQL and Supabase
Project details
You will get secure, scalable, and production-ready REST API development using Node.js, PostgreSQL, and Supabase. Whether you're building a SaaS platform, web application, dashboard, or custom backend system, I deliver clean, maintainable solutions designed for performance and growth.
I specialize in backend development, API integration, database design, authentication systems, and third-party integrations. Every API is built with security, reliability, and scalability in mind.
Services include:
✔ REST API development
✔ PostgreSQL database design
✔ Supabase integration
✔ JWT and OAuth authentication
✔ CRUD operations
✔ Third-party API integrations
✔ Webhooks and background jobs
✔ Error handling and validation
✔ Performance optimization
✔ API documentation
I begin by understanding your requirements and architecture, then develop and test your backend system before delivering clean source code and documentation.
Whether you need a simple API or a scalable backend for your SaaS application, I focus on delivering secure, high-quality solutions that are easy to maintain and built to scale.
I specialize in backend development, API integration, database design, authentication systems, and third-party integrations. Every API is built with security, reliability, and scalability in mind.
Services include:
✔ REST API development
✔ PostgreSQL database design
✔ Supabase integration
✔ JWT and OAuth authentication
✔ CRUD operations
✔ Third-party API integrations
✔ Webhooks and background jobs
✔ Error handling and validation
✔ Performance optimization
✔ API documentation
I begin by understanding your requirements and architecture, then develop and test your backend system before delivering clean source code and documentation.
Whether you need a simple API or a scalable backend for your SaaS application, I focus on delivering secure, high-quality solutions that are easy to maintain and built to scale.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$75
|
Standard
$180
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 2 | 3 | 3 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$40 - $120
Additional Revision
+$15
Additional Page
(+ 1 Day)
+$30
Design Customization
(+ 1 Day)
+$40
Content Upload
(+ 1 Day)
+$20
Responsive Design
(+ 1 Day)
+$30
Database optimization
(+ 1 Day)
+$30Frequently asked questions
5 reviews
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SM
Sumit M.
Mar 22, 2026
Redesign & Patch Works
Highly recommended for anyone looking to scale their Redesign.
JF
Joseph F.
Apr 12, 2024
Bubble Web Development Specialist
Conleth knocked it out of the park with his my project! From start to finish, he brought a perfect blend of creativity and professionalism. His clear communication and ways for turning ideas into reality made the whole process smooth sailing. I'd definitely team up with Conleth again for any project – he's a rock star!
RM
Richard M.
Mar 21, 2024
Join Our Team as an AI Social Media Manager
Working with Conleth again was an absolute pleasure. His knack for API integrations and all things Bubble.io is truly impressive. He got my app up and running in no time, and the quality of his work was outstanding. Plus, he surprised me with a discount right from the start, which was really appreciated. This experience reaffirmed my belief that Conleth is not just skilled, but also genuinely caring and generous. I'm already looking forward to our next project together. If you're looking for someone who's not only talented but also a joy to work with, I highly recommend Conleth.
CU
Chika U.
Mar 20, 2024
Mobile App Developer
It was awesome! My friend couldn't stop raving about Conleth, and I thought they might be hyping him up. But when I asked Conleth to tweak my AI with an edit function, he not only nailed it but also gave my dashboard a cool upgrade! I'm super happy with the results. Conleth was quick with delivery and great to chat with. Count me in for future projects! If you're diving into Bubble and need a hand, Conleth's your guy!
AP
Angie P.
Mar 19, 2024
AI application for iOS and Android
I recently had the privilege of working with Conleth and I am absolutely blown away by his level of expertise and enthusiasm! From the get-go, Conleth demonstrated an In-depth understanding of Bubble.io and its capabilities. The communication throughout the process was perfect. He took his time to understand my requirements, patiently addressed my questions, and kept me updated at every stage of the development. He went above and beyond to ensure the Al API Integrations seamlessly aligned with the overall functionality of my app. In conclusion, I am beyond satisfied with the results of our collaboration. I look forward to future collaborations!
About Conleth
AI Agent & Micro-SaaS Developer | AI Automation | Lovable + Base44
Owerri, Nigeria - 2:54 am local time
I help founders, startups, agencies, and growing businesses build AI-powered applications, automation systems, and Micro-SaaS products that eliminate repetitive work, streamline operations, and turn ideas into working software fast.
I specialize in building AI-native products using tools like Lovable, Base44, OpenAI, Supabase, and PostgreSQL to ship MVPs, automate workflows, and create scalable SaaS applications.
If you're looking to launch quickly, automate processes, or build a new digital product, I focus on delivering fast, functional, and scalable solutions.
What I Can Help You Build
✔ AI Agents for business automation
✔ AI Chatbots (customer support, sales, internal tools)
✔ AI Assistants for workflows and operations
✔ AI Workflow Automation systems
✔ Custom AI Applications
✔ Micro-SaaS products
✔ MVP development for startups
✔ Full SaaS platforms
✔ Internal business tools
✔ CRM systems
✔ Admin dashboards
✔ Client portals
✔ Lead qualification systems
✔ Knowledge base assistants
✔ Research automation tools
✔ Data processing systems
✔ Reporting dashboards
✔ API-based integrations
✔ Webhook automation systems
✔ Background job systems and schedulers
Services I Offer
• AI Agent Development
• AI Chatbot Development
• AI Automation Systems
• Workflow Automation
• SaaS Development
• Micro-SaaS Development
• MVP Development
• Custom Web Application Development
• Full-Stack Development
• API Integration & Webhooks
• OpenAI / LLM Integration
• Supabase Development
• PostgreSQL Database Design
• Backend Development
• Business Process Automation
• Dashboard Development
• Internal Tool Development
• Multi-Agent Systems
• Rapid Prototyping
Technologies I Use
AI & Automation
• OpenAI API
• LLMs (GPT-based systems)
• Prompt Engineering
• AI Agents
• Multi-Agent Systems
Backend & Infrastructure
• Supabase
• PostgreSQL
• REST APIs
• Webhooks
• Authentication Systems
• Vector Databases
• Background Workers
• Cron Jobs / Scheduling
Development Platforms
• Lovable
• Base44
• Modern AI-native development tools
Common Projects I Build
• AI customer support systems
• AI sales assistants
• AI research tools
• Workflow automation platforms
• Business process automation systems
• Internal dashboards
• Admin panels
• CRM platforms
• SaaS applications
• Micro-SaaS tools
• Client portals
• Employee management systems
• Reporting and analytics dashboards
• Data management systems
• Appointment booking systems
• Lead generation systems
• Knowledge base systems
Who I Work With
✔ Startup founders
✔ SaaS founders
✔ Agencies
✔ Entrepreneurs
✔ Small and medium businesses
✔ Teams looking to automate operations
✔ Companies building internal tools
✔ Founders validating MVP ideas
✔ Businesses replacing manual workflows
My Approach
I focus on building software that solves real business problems.
Before writing any code, I understand your workflow, identify bottlenecks, and design a system that improves efficiency and reduces manual work.
I prioritize:
✔ Fast delivery and iteration
✔ Clean and scalable architecture
✔ Reliable API integrations
✔ Maintainable systems
✔ User-friendly interfaces
✔ Practical business outcomes
✔ Automation over manual processes
Why Work With Me
I combine AI development, automation, and modern web technologies to build products that help businesses move faster.
Instead of long development cycles, I use AI-native tools like Lovable and Base44 alongside OpenAI, Supabase, and PostgreSQL to quickly build:
AI Agents
SaaS platforms
Workflow automation systems
MVPs
Internal tools
Custom business applications
My goal is simple: help you launch faster, automate more, and build systems that actually work in production.
If you're looking for an AI Agent Developer, AI Automation Expert, or Micro-SaaS Developer to build your next product, MVP, or automation system, I’d be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Conleth can start the project.
Delivery time starts when Conleth receives requirements from you.
Conleth works on your project following the steps below.
Revisions may occur after the delivery date.
Review Requirements
I will analyze your requirements, architecture, and integrations to plan the API structure and database design.
Backend Development
I will develop secure REST APIs, configure PostgreSQL or Supabase, and implement authentication and core functionality.