Find the Best Back-End Developers Jobs
Check out a sample of the 1,339 Back-End Developers jobs posted on Upwork
Senior Python Developer (Excellent Communication & Client-Facing Skills)
Hours needed
Duration
Experience level
Overview We are looking for an experienced Python developer with strong technical expertise and exceptional communication skills. This…
Shipping API Developer
Hours needed
Duration
Experience level
We are seeking a skilled developer to integrate shipping services into our application. The ideal candidate will have experience with A…
Full-Stack AI & Data Engineer - Long term contract
Hours needed
Duration
Experience level
Summary Contract | Remote | 7 months | Start: July 6, 2026 | Mon-Fri, 8hours/day = 40 hours/week | Overlap 4 to 6 hours with US Central…
React + .Net Core Full Stack Developer
Fixed-price
Experience level
Need a React + .Net Core full stack developer for a 10–20-hour gig immediately. The task involves fixing and deploying a complete worki…
Expanding Truck Import Management Platform — Flask/Python Backend
Hours needed
Duration
Experience level
We are looking for a backend developer to extend an existing vehicle import management platform built with Python (Flask) + MySQL. Wha…
Web Developer — Quote Web-App + Make.com/CRM Integration (Not a Design Job)
Fixed-price
Experience level
We need a working quote web-app, not a brochure site. Three parts: "Please answer the two screening questions — applications that skip…
Technical Architect / Lead Developer (WordPress) for Premium Fantasy Community Platform
Hours needed
Duration
Experience level
Seeking a Senior WordPress Technical Architect & Lead Developer to serve as both the implementation lead and long-term technical adviso…
Senior Go Developer
Hours needed
Duration
Experience level
We are looking for a Senior Go Developer to start ASAP Workload: full-time Start: asap or ideally mid-July Duration: long-term ⚠️ Imp…
Senior SaaS Architect & Principal Backend Engineer (FastAPI, AI Agents, Multi-Tenant SaaS, MCP)
Fixed-price
Experience level
We are building an AI-powered automation platform for small and medium-sized businesses. Our platform automates customer communication…
Product Developer — End-to-End (Product Brief to Development Plan)
Hours needed
Duration
Experience level
Overview We're a growing DTC outdoor & lifestyle brand looking for an experienced Product Developer to own new products from brief to l…
Your next job starts right here
Set up a free profile to showcase your skills, experience and desired pay rate to clients. You choose the payment method that's best for you to easily get paid for your work.
Find workGives you security and peace of mind