Freelance Kotlin jobs

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

26 live26 freelance12 remote
Platform Engineering Lead
Freelancehybrid🇺🇸 United States📍 Waltham, MassachusettsJavaKotlinAWSKubernetes
Medior/Senior Back-end softwareontwikkelaar
Freelanceonsite🇳🇱 Netherlands📍 Utrecht⏱ 8 monthsJavaKotlin.NETSpring Boot
IntelliJ Plugin Developer (BPMN) für / FFM
Freelanceremote🇩🇪 Germany📍 Frankfurt⏱ 6 months + extensionIntelliJ Platform SDKJavaKotlinBPMN 2.0
Software Engineer (Java/Kotlin/Scala)
Freelanceremote🇵🇱 Poland📍 Poland⏱ 6 months + extensionJavaKotlinSpring BootActiveMQ
Medior/senior back-end softwareontwikkelaar
Freelanceonsite🇳🇱 Netherlands📍 Utrecht⏱ 8 monthsJava 21+KotlinSpring Boot 4+Maven 3+
Software Engineer - Collateral Exchange Platform (DLT)
Freelanceremote🇱🇺 Luxembourg📍 Luxembourg⏱ 4-6 monthsKotlinScalaJavaKubernetes
Senior backend / infrastructure consultant
Freelancehybrid🇸🇪 Sweden📍 Stockholm Metropolitan Area, Sweden⏱ 6 months + extensionGCPTerraformKotlinPub/Sub
Senior Fullstack Developer – Kotlin / Java & React - Stockholm
Freelancehybrid🇸🇪 Sweden📍 Sweden⏱ 12 monthsKotlinJavaReact
Senior Mobile App Developer (Kotlin)
Freelancehybrid🇩🇰 Denmark📍 Copenhagen, Denmark⏱ 4-6 months + extensionKotlinAndroid SDKJetpackMVVM
Senior Native developer
Freelancehybrid🇸🇪 Sweden📍 Stockholm Metropolitan Area, Sweden⏱ 4-6 monthsKotlinAndroidComposeKMP
Software Engineer Android Automotive Aosp Ottawa
Freelancehybrid🇨🇦 Canada📍 Ottawa⏱ 12 monthsC++JavaKotlinAndroid
Automation Tester
Freelance🇬🇧 United Kingdom📍 Burgess Hill, England, United Kingdomjavakotlinautomation testingquality assurance
Senior Data Engineer
Freelanceremote🇵🇱 Poland📍 Remote jobPythonJavaKotlinScala
Senior Mobile Developer
Freelanceremote🇨🇦 Canada📍 CanadaTypeScriptKotlinSwiftCapacitor
Senior Fullstack Engineer (Java&Kotlin + JavaScript)
Freelanceremote🇵🇱 Poland📍 Remote jobJavaKotlinJavaScriptTypeScript
Fullstack Engineer (Java&Kotlin + JavaScript)
Freelanceremote🇵🇱 Poland📍 Remote jobJavaKotlinJavaScriptReact
Kotlin Multiplatform Developer
Freelanceremote🇵🇱 Poland📍 PolandKotlin
Développeur Mobile Android KMP Montpellier/MA
Freelancehybrid🇫🇷 France📍 Montpellier⏱ 6 months + extensionKotlin Multiplateform (KMP)
Senior Salesforce Engineer Integration Burnaby
Freelancehybrid🇨🇦 Canada📍 Burnaby, British Columbia⏱ 12 months + extensionJavaKotlinSpring BootKafka
Java Lead Engineer
Freelance🇬🇧 United Kingdom📍 Sheffield, England, United Kingdomkotlinjavamicroservicesrest apis
Senior Android Developer (Kotlin)
Freelancehybrid🇵🇱 Poland📍 Warsaw, Poland⏱ > 12 monthsKotlinJetpack ComposeKotlin MultiplatformCompose Multiplatform
Android Developer (3-Months Contractual)
Freelanceremote🇵🇰 Pakistan📍 Pakistan⏱ 3 monthsAndroidKotlinAndroid StudioGradle
Android Developer (SP)
Freelanceremote🇵🇱 Poland📍 Warsaw, Masovian Voivodeship, PolandKotlinAndroid SDKJetpackBluetooth/BLE
Senior Mobile Developer (React Native / Kotlin)
Freelanceremote🇧🇪 Belgium📍 ArgentinaReact NativeKotlinTypeScriptAWS IoT Core
Fullstack Developer (React + Kotlin/Java)
Freelanceremote🇵🇱 Poland📍 PolandReactKotlinJava
Tech Lead full stack Java, Kotlin - Lille
Freelanceonsite🇫🇷 France📍 Lille⏱ 3 months + extensionJavaKotlin
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