11,086 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
Backend Developer
Backend developer at IT consultancy Aubay Portugal, building and evolving critical backend systems for large banking, insurance, telecom and energy clients. Day-to-day work centers on Kotlin/Java with Spring Boot, PostgreSQL, and messaging (RabbitMQ/Kafka) in microservices architectures, with potential AI agent development using ADK/Vertex AI.
Senior Backend Developer
Senior Backend Developer at Sky Portugal building highly scalable microservices for global OTT streaming platforms (Peacock, NOW, SkyShowtime, Showmax). Day-to-day work spans the full development cycle—design, implementation, testing, and operations—using Java/Kotlin/C#, Docker/Kubernetes, and CI/CD.
Expert Sécurité Technologie (F/H) h/f
Information-security expert in the Business Security Expertise Center of BPCE Solutions Informatiques (IT arm of France's 2nd-largest banking group), advising digital product teams, running security risk analyses, and co-designing security solutions across Java, Angular, Swift, Kotlin, cloud and API stacks.
Android Software Engineer
Develops embedded Android (AOSP) platform software for next-generation in-flight entertainment systems — framework, native services, HALs, display/multimedia, and hardware integration — in a safety-critical aerospace setting. Work is on-site in Hillsboro, Oregon, open only to U.S. citizens and Green Card holders.
Frontend Developer
Mid/senior developer building modern web frontends (Vue.js, React, TypeScript) and mobile apps (Kotlin, React Native) for defense-industry and public-security projects at TURK AI, with strong UI/UX design work in Figma. Fully office-based in Ankara; applicants must be Turkish citizens residing there.
Android Engineer
Android engineer (3+ years) at NTT Data building mobile apps with Kotlin and Jetpack Compose on international consulting projects across banking, insurance, telecom, public sector and healthcare. Offers 100% remote or adapted work, flexible hours, a training plan and weekly English classes.
Senior Frontend Developer (Vue / TypeScript)
Senior frontend developer building the web experience for a cloud Wi-Fi network planning/design tool (2D/3D building modeling, AI-based signal propagation, access-point placement). Day to day: Vue + TypeScript interfaces with testing, accessibility and 3D graphics, plus maintaining web CI/CD and dependency hygiene.
Frontend Developer (Vue / TypeScript)
Frontend developer building the web interface of a cloud Wi-Fi planning/design tool (2D/3D building modeling, AI-based signal propagation, optimal access-point placement) using Vue and TypeScript, including 3D graphics, testing, accessibility, and CI/CD upkeep. Based in Elche, Spain with flexible office/home choice.
Site Reliability Engineer
Maintains and scales Toss’s payment and financial services infrastructure to ensure high availability and performance using cloud-native tools and DevOps practices.
Senior Software Engineer, Android
Senior Android engineer who owns and scales Knowtex's Kotlin Android app for its AI clinical documentation platform used across VA sites — building recording, authentication, and note-review workflows, integrating with APIs and real-time audio, and improving reliability, performance, and release quality.
Backend Engineer - Kotlin
6-month contract backend role building and supporting a Kotlin finance integration platform for a global retail company, 5 days/week on-site in downtown Vancouver. Work centers on invoice data flows, AWS/Terraform infrastructure, APIs and event-driven integrations, with AI-assisted coding (Copilot, Codex) verified by the engineer.
Staff Software Engineer / Lead Software Engineer
Staff Software Engineer in CommBank's EC Technology team, building and operating production services, APIs and data integrations that detect and investigate financial crime. Hands-on backend work (Java/Kotlin/Go/Python), React/TypeScript full-stack, cloud-native delivery, plus engineering AI/agentic capabilities with guardrails.
Senior Full Stack Developer - Remote Medellín
Senior full stack developer at Evertec, a Latin American transaction-processing company, building and maintaining web apps, Android apps, and REST APIs. Remote role in Medellín using Vue 3, Kotlin/MVVM, C#/.NET 8, SQL/NoSQL databases, and automated testing.
Full Stack Developer Sr Specialist
Senior full-stack developer at Evertec (a Latin American payment/transaction processing company) building web features with Vue 3/Quasar/Pinia, Android apps in Kotlin (MVVM), and C#/.NET 8 REST APIs for the PVOT point-of-sale system, including Couchbase data work, offline sync, and EN/ES localization. Remote role based in Medellín, Colombia.
Lead Software Engineer (Mobile/App)
Hands-on lead engineer at Searce building native mobile apps (Swift/Kotlin) for clients: architecting, writing production code, reviewing, and mentoring a small team, while contributing across backend microservices, web front ends, and GCP/AWS cloud, and owning measurable outcomes for the client.
Full Stack Engineer (Java + React)
Full-stack engineer at a fast-growing WealthTech company in London (hybrid, 2 office days/week), roughly 65% frontend and 35% backend, building a modern cloud-native web platform with React, TypeScript, and Java/Spring Boot, with AI-assisted development tools central to the workflow. Salary up to £85,000 plus benefits.
Java Developer
Java developer on Global's Consumer Growth team building and running the microservices behind Global Player and internal studio tools for podcasts, radio and video. Day-to-day is Java/Spring Boot feature work on AWS (EKS/Kubernetes) with CI/CD, Prometheus/Grafana monitoring and AI-assisted coding.
Mobile Apps Development Trainer — Android Expert
Short-term training gig: an Android expert teaches mobile app development to students in Paris over four days in November 2026 (28 hours total), covering architecture, multiplatform, UI, REST, and testing. Requires solid mobile development experience with Kotlin, Android Studio/SDK, and Android Jetpack; pays up to €60/hour.