Find the Best API Jobs in St. Louis, MO
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Check out a sample of the 3 API jobs posted on Upwork
API and Zapier integrations Expert Needed ASAP
Hourly ‐ Posted 1 month agoLess than 30 hrs/week
Hours needed
Hours needed
Less than 1 month
Duration
Duration
Expert
Experience level
Experience level
Need API or Zapier integrations for my online systems/accounts Google/Gmail/Calendar WordPress Jobber Jobber Payments PipeDrive JustCa…
APIAPI IntegrationAPI DevelopmentAutomationAPI JobsZapier
See moreSenior Full-Stack Developer
Hourly ‐ Posted 9 days ago30+ hrs/week
Hours needed
Hours needed
More than 6 months
Duration
Duration
Intermediate
Experience level
Experience level
Location: Remote Team size: Small (you’ll know everyone’s name) Stack: Java 21 / Guice / Gradle backend + React 19 / TanStack / MUI…
APIAPI JobsClaudeGitHubGradleJava
See moreAPI Developer Needed for Endpoint Development in Startup Environm…
Fixed-price ‐ Posted 2 days ago$500
Fixed-price
Fixed-price
Intermediate
Experience level
Experience level
Are you a backend engineer who enjoys debugging, improving existing systems, and completing real product features in a fast-moving star…
APIAPI DevelopmentAPI IntegrationAPI JobsNode.jsTypeScript
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