Find the Best API Jobs in Fontana, CA
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Check out a sample of the 32 API jobs posted on Upwork
Xano, Noloco, Zoho for CRM and Billing
Hourly ‐ Posted 23 days agoHours needed
Duration
Experience level
Backend & Integrations Developer (Xano, Noloco, Zoho CRM) Job Description We are looking for a skilled Backend Developer to manage and…
Expert n8n Developer - AI Video Pipeline with WhatsApp Approval G…
Fixed-price ‐ Posted 27 days agoFixed-price
Experience level
Looking for a sharp, efficient solo n8n developer to build an end-to-end automated video pipeline for two DTC e-commerce brands. Agenci…
Senior Copilot Studio & Power Platform Engineer - Enterprise Agen…
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We need a Senior engineer to build and ship enterprise agents in Copilot Studio, integrated across Fabric, Dataverse, and Microsoft 365…
Conversion Tracking Specialist (GA4 / GTM / Meta CAPI)
Hourly ‐ Posted 4 days agoHours needed
Duration
Experience level
We're a digital marketing agency serving 200+ restaurant clients, running Meta and Google Ads campaigns that feed into a proprietary at…
Software Development - HealthCare
Hourly ‐ Posted 1 month agoHours needed
Duration
Experience level
We are looking for someone to assist with continuing and refining our health tech / WoundCare DME software. You MUST MUST MUST have exp…
Need Python Full Stack Developer SaaS, AI Development, MVP Develo…
Hourly ‐ Posted 28 days agoHours needed
Duration
Experience level
We're a healthcare startup building an MVP for a HIPAA Compliance Healthcare platform designed for physicians working with biomechanica…
ERP & AI Automation Architect (Odoo) – Industrial Manufacturing &…
Hourly ‐ Renewed 29 days agoHours needed
Duration
Experience level
This is not a standard Odoo implementation. We're looking for someone who can architect an integrated business platform — connecting E…
Build AI Portrait Generator, Shopify Integration
Hourly ‐ Posted 8 days agoHours needed
Duration
Experience level
I'm looking for an experienced full stack dev to build an AI portrait site integrated with Shopify. Core features include photo upload,…
Airtable + API Integration & Automation Expert — Ongoing Retainer…
Hourly ‐ Posted 1 month agoHours needed
Duration
Experience level
We're a talent partnerships agency looking for an experienced Airtable and automation expert for an ongoing, flexible retainer role. We…
Full Stack Developer expert in modern SaaS applications, AI integ…
Fixed-price ‐ Posted 1 month agoFixed-price
Experience level
We are looking for an experienced Full Stack Developer to join our team and help build scalable, modern web applications. The ideal can…
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