Freelance Backend Developer jobs

23 live freelance, contract and interim Backend Developer roles, collected daily from recruitment-agency desks around the world — the postings that rarely make it to the big job boards.

23 live23 freelance8 remote
Senior Backend Developer (Node.js + DevOps)
Freelanceremote🇬🇪 Georgia📍 Remote job⏱ 3-4 months + extensionNode.jsAzureAPIevent-driven systems
Java Backend Developer – Nawiąż współpracę z emagine
Freelanceremote🇵🇱 Poland📍 Poland⏱ Permanent PositionJava
(Senior) Backend Developer · NET
Freelancehybrid🇵🇹 Portugal📍 Lisbon, Portugal⏱ > 12 months.NETDockerKubernetesAzure
Lead Backend Developer
Freelanceonsite🇫🇮 Finland📍 Helsinki, Finland⏱ 1-3 months + extensionJavaSpring BootKafkaSQL
Backend Engineer - Java
Freelanceremote🇸🇪 Sweden📍 Sweden⏱ 7-9 monthsJavaFlinkSparkBeam
Backend Developer
Freelancehybrid🇵🇹 Portugal📍 Lisbon, Portugal⏱ Permanent PositionJavaSpring FrameworkSQL
Senior Backend Engineer - Java
Freelancehybrid🇸🇪 Sweden📍 Sweden⏱ 4-6 monthsJavaSQLGoogle Cloud PlatformProtocol Buffers
Backend Developer
Freelanceonsite🇸🇪 Sweden📍 Malmö Metropolitan Area, Sweden⏱ 1-3 monthsJavaScalaPlay FrameworkSpark
Backend Developer - Java/Kotlin
Freelancehybrid🇸🇪 Sweden📍 Sweden⏱ 7-9 monthsJavaKotlinSpring Bootmicroservices
Rust Backend Developer - Payments
Freelancehybrid🇸🇪 Sweden📍 Malmö Metropolitan Area, Sweden⏱ 3-6 months + extensionRustPostgreSQLDockerCI/CD
Senior Backend Engineer
Freelanceremote🇵🇹 Portugal📍 Portugal⏱ Permanent PositionJavaQuarkusSpring BootPostgreSQL
Senior Backend Engineer (Java)
Freelancehybrid🇸🇪 Sweden📍 Sweden⏱ 4-6 monthsJavagRPCGCPBigQuery
Senior .Net Backend Engineer
Freelanceremote🇵🇱 Poland📍 Poland⏱ 12 months + extension.NETASP.NET CoreAzureAWS
NET Backend Developer
Freelancehybrid🇵🇱 Poland📍 Warsaw, Poland⏱ 12 months + extension.NETC#APIReact
Fullstack Backend Developer With C .Net
Freelanceremote🇬🇧 United Kingdom📍 London⏱ 3 monthsC#ASP.NETJavaScriptReact
Java Backend Developer
Freelance🇵🇱 Poland📍 Warsaw, Mazowieckie, Polandjavaspring bootrestful apisaws
Senior Back End Developer Technical Lead Php Laravel Toronto
Freelanceonsite🇨🇦 Canada📍 TorontoPHPLaravelMySQLLinux
Senior Backend Engineer Kotlin
Freelancehybrid🇬🇧 United Kingdom📍 London⏱ 6 monthsKotlinGolangGCP
Senior Backend Developer – Streaming & CDN
Freelanceonsite🇸🇪 Sweden📍 Stockholm⏱ 9 monthsJavaPythonCC++
Senior Backend Developer with Business Analysis & AI Expertise
Freelancehybrid🇦🇹 Austria📍 Vienna⏱ 5 months + extensionGoJavaKubernetesApache Pulsar
Backend Engineer In Energy Trading
Freelanceremote🇩🇪 GermanyPythonRustKafkaAzure
Backend Developer
Freelanceonsite🇦🇪 United Arab Emirates📍 Abu DhabiJavaSpring BootSpring SecuritySpring MVC
Backend Engineer (Node.js; )
Freelanceremote🇵🇱 Poland📍 PolandNode.js
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