API Development Job Listings

Displaying 30 out of 300 jobs

Backend Software Developer – AI/LLM Systems Full Time

Posted on 2025-10-04 01:41:31

$700-1100
Promo Panda is a PR tech company helping professionals worldwide grow their brands and careers through media placement. We’re looking for a backend software developer to design scalable systems, build robust APIs, and integrate AI models into production workflows.

This… See More
Node JSAPI DevelopmentArtificial Intelligence

Full-Stack Developer - for - SaaS Coaching Platform (NEW Project - Ground Floor Opportunity) Full Time

Posted on 2025-10-01 20:54:05

800-1500 USD
LOCATION: Remote (Philippines)
EMPLOYMENT TYPE: Full-time
RATE: $ ---------- / month, depending on experience

*ABOUT THIS PROJECT*
Sage is a modern career development platform that helps job seekers connect with top coaches and track their progress through tools like application tracking,… See More
FullstackAPI DevelopmentWeb Development

Bubble.io Developer for SaaS + Companion App MVP Any

Posted on 2025-09-27 21:18:39

$5–8/hour depending on experience
We are a health-tech startup building a SaaS platform for adult day centers and a companion app for families and caregivers. We are looking for an experienced ---------- developer to build our MVP. The SaaS side will include secure staff… See More
SaaSAPI DevelopmentBubble.io

Google Docs API App Developer Any

Posted on 2025-09-26 08:07:42

$10,000 php starting
We are building a set of custom tools around the Google Docs API/Infrastructure to help our clients make better use of Google Docs when writing for business.

This has ongoing longterm potential since there's a lot of cool things we… See More
API DevelopmentREST APIAPI Integration

AI Automation & Operations Platform Developer Gig

Posted on 2025-09-18 08:47:04

3000
AI Automation & Operations Platform Engineer/Developer

About the Project
We are looking to build an AI-driven operations platform that references an internal database (to be designed and built) and provides a frontend for users. The platform will handle operational workflows… See More
API DevelopmentAI ToolsAI Automation

Contract Developer – Automations & No-Code Integrations Part Time

Posted on 2025-09-10 00:53:05

1500
Modern Law Practice (MLP) is looking for a contract developer to support our head of automations and development. This is a hands-on role for someone who can jump in quickly, learn fast, and help us build and improve automation-driven systems… See More
API DevelopmentSoftware QA TestingMake.com

App Developer – AI Flyer/Poster Generator Part Time

Posted on 2025-09-09 04:41:57

400
We’re building a new creative tool that empowers anyone to generate custom flyers and posters instantly using AI. The app will combine intuitive design with automation, giving users professional-quality results in just a few clicks.

Role
We’re looking for a… See More
Mobile DevelopmentSwiftAPI Development

Back-End Developer Full Time

Posted on 2025-09-08 16:53:10

600-1000
Responsibilities:

Develop and maintain server-side application logic
Design and implement database structures and APIs
Ensure application performance, security, and scalability
Collaborate with front-end developers and other tea ---------- mbers
Provide ongoing maintenance and support post-implementation
Requirements:

Minimum 3 years of back-end… See More
API DevelopmentStripe ApiAPI Integration

API DEV Any

Posted on 2025-09-06 18:59:30

$10/h
I am looking for a Dev who can help me connect GoHighLevel calendar to Cliniko.
The goal is to have users book appointments using the GHL calendar, and then have these appointments sync automatically in cliniko (and vice versa). See More
API DevelopmentREST API

PT Web Programmer/Web Design + Management Part Time

Posted on 2025-09-03 08:14:13

4-7
I need a sharp, reliable VA to own the website design + management, do more complex coding, as well as simple site updates, and keep everything tidy, fast, and on-brand.

PT to start, potential for more hours as needed.

Details:… See More
Website BuilderAPI DevelopmentWeb Development

Systems Engineer Full Time

Posted on 2025-08-29 23:26:29

$1,000 base + Bonuses ($1,500/month on target earnings)
Role Overview

Automate processes, integrate software systems, and handle technical support for AI content generation & AI workflows. Additionally, propose and implement improvements to streamline fulfillment operations. The overall goal of this role is to help make our company more… See More
Technical SupportAPI DevelopmentProcess Improvement

GoHighLevel Saas Project Manager Full Time

Posted on 2025-08-29 03:42:52

35,000 – 45,000 / mo + performance bonuses.
Virtual Assistant (Philippines) — Dreams at Work™ Growth Agency
Status: Full?time, remote | Hours: 40 hrs/week with at least 4 hrs overlap in US Mountain
Time (Mon?Fri) | Compensation: 35,000 – 45,000 / mo + performance bonuses.
Why You’ll Love… See More
API DevelopmentEnglish SpeakingGoHighLevel

Custom JavaScript Developer - Telnyx Call Button Integration for GHL CRM Gig

Posted on 2025-08-28 06:34:49

15
Overview:
We need a skilled JavaScript developer to create a simple, reliable script that injects a "Call" button into our GoHighLevel (GHL) CRM. The button should allow users to make outbound calls through our Telnyx VoIP service directly from the… See More
API DevelopmentDeveloper toolsAPI Integration

Automation Expert – One-Time System Setup (n8n + GPT-4 + Twilio + OctopusPro) Any

Posted on 2025-08-25 06:35:00

30000ph
???? Job Description:

We are a junk removal company based in Melbourne, Australia.
We’re building a full AI-powered quoting and dispatch automation system to save time and improve customer experience.

You will be responsible for setting up the system using… See More
API DevelopmentAI Automation

Automation Assistant – Twilio + GPT-4 + OctopusPro System Setup Gig

Posted on 2025-08-25 06:35:00

35000
We’re a leading junk removal business . We’re building a fully automated quoting, dispatch, and CRM system using tools like GPT-4 Vision, Twilio, and n8n. Your role is to set up and connect everything step-by-step with the owner (me).

This… See More
API DevelopmentDev Tools - Cloud Control APIAPI Integration

E-commerce PrestaShop Specialist (Front-End + API) Any

Posted on 2025-08-24 06:49:08

$1200
360 Cycles is a bicycle retail store based in Dublin, Ireland, with a growing online presence. Our new e-commerce site is being developed on PrestaShop, and we are seeking a highly skilled full-stack developer to continue, complete, and improve the… See More
PrestaShopCSSAPI Development

Chat gpt or Copolit trainer Gig

Posted on 2025-08-23 08:30:34

Negotiable
Hello, I am looking for someone who is familiar with creating Ai agent. I would like to create virtual agent for agency process and. I would to create each supervisor agent. I would like you to train me how to… See More
API DevelopmentAI ToolsAI Automation

Full-Stack Developer Part Time

Posted on 2025-08-22 12:22:44

$10 - $15 per hour depending on experience. Also opportunity for longer term
About Us:
We are a fast-paced, dynamic creative agency, and we are seeking an exceptional Software & AI Developer to help us build a new AI tool designed to revolutionize the content creation process. We are looking for a talented… See More
CSSAPI DevelopmentAI Automation

Python Developer – AI Agent Backend (Long term role) Part Time

Posted on 2025-08-15 03:51:25

$800
Role:

We’re a fast-growing AI startup looking for a Python Developer for a long-term role — someone patient, detail-oriented, and who enjoys solving challenges. You’ll set up and maintain the backend for AI agents that power our sales and marketing… See More
PythonAPI Development

Full Stack AI Voice Developer – AI Receptionist & Call Automation Any

Posted on 2025-08-12 12:11:43

600 - 1500 USD
About the Project
We’re building an AI-powered receptionist and call center automation system capable of answering inbound calls, making outbound sales calls, and handling general call center agent tasks. This system will combine open-source telephony (Asterisk), AI speech technologies (Whisper,… See More
SoftwareFullstackAPI Development

Videogame Automation Gig

Posted on 2025-08-11 18:34:29

$595 one time, possible ongoing
I am seeking a developer to create an app to automate tasks in MMO RPG game. It must function as a client capable of managing many game accounts simultaneously and as middleware between the game's Windows client (Unity, I believe)… See More
C#UnityAPI Development

System Integrator – Automation & AI Specialist Part Time

Posted on 2025-08-09 11:55:50

$480
We are looking for a tech-savvy System Integrator with expertise in automation and AI workflows. If you have a passion for streamlining operations and building intelligent systems, we want to hear from you.

What You’ll Do:
• Build & Integrate… See More
CRMAPI DevelopmentAI Automation

Five9 Developer Any

Posted on 2025-08-09 01:35:42

negotiable
Someone who has Five9 tech skills. Five9 plus API coding skills required. You will be asked to work in Go High Level and Ring Central as well. See More
API Development

API integration Specialist Needed Gig

Posted on 2025-08-06 05:12:47

300
Looking for a specialist in API integration to integrate api from another website, to my website.

Lightsail and a middleware is used. See More
API DevelopmentAPI TestingAPI Integration

Full-Time Full-Stack Developer (Next.js + Supabase + Stripe) – Education SaaS Platform Full Time

Posted on 2025-08-05 08:27:31

$500-1500 AUD (negotiable pending experience)
Full-Time Full-Stack Developer (Next.js + Supabase + Stripe) – Education SaaS Platform (Remote / Filipino Preferred)
Full-Time | Fully Remote | Long-Term | Filipino Devs Preferred

________________________________________
About the Project

Hi! I'm a founder based in Sydney, Australia building a… See More
API DevelopmentCommunicationBusiness development

No-Code Automation & Airtable Specialist Gig

Posted on 2025-08-04 07:06:03

To be discussed, pay per hour
About Us:
Fast-growing business (Belgium/US, moving to Dubai) needing a turnkey P&L system: expenses, revenue, receipts all auto-fed into Airtable for real-time profit visibility.

Scope:

Build Airtable base: Expenses, Income, Profit Dashboard with formulas/rollups and Interface view.

Create Zapier or… See More
AirtableAPI DevelopmentAI Automation

Team Lead – .NET Application Development Full Time

Posted on 2025-07-28 19:51:59

$1500
We are seeking an experienced and proactive Team Lead with a strong C#/.NET development background to assemble and manage a small but highly effective development team. This role combines technical leadership with project management, making it ideal for someone who… See More
API DevelopmentASP.NETTeam Leadership

AI-Focused Full Stack Developer Any

Posted on 2025-07-16 10:46:50

800-1000
We’re an innovative, tech-forward company building cutting-edge web applications and internal tools that streamline and automate business operations. As we scale, we’re integrating AI into our core products — and we’re looking for a Full Stack Developer who’s excited to… See More
API DevelopmentSoftware Development Project Manager

STRONG RESEARCHER WITH AI EXPERIENCE AND ALSO FULL STACK EXPERIENCE Part Time

Posted on 2025-07-03 13:05:27

200
Job Title: EdTech Platform Researcher/Developer - Financial Education for Youth
Part-time: 10-15 hours/month | 6-month initial contract | Remote
Project Overview
Early-stage educational technology venture focused on teaching financial and property literacy to young people. Starting in the UK with… See More
Research WritingFullstackAPI Development

Full Stack Developer – GHL | Shopify | SaaS | AI | Data Infrastructure Full Time

Posted on 2025-06-29 06:05:23

~100,000 – 380,000
Full Stack Developer – GHL | Shopify | SaaS | AI | Data Infrastructure
Divisions: Benson Inc. Canada (NPTA | Fit Integrated Wellness | Jesse Benson Coaching)
Location: Remote
Engagement: Full-Time | Strategic Technical Operator

Do not apply if:
You’ve… See More
Business ManagementDevopsAPI Development