11,087 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
Senior Backend Engineer (Kotlin / Java)
Senior backend engineer on Fourthwall's single Kotlin monolith — a creator-ecommerce platform and merchant of record handling payments, refunds, payouts, tax, manufacturing and shipping integrations. Remote in Poland (B2B), using Spring Boot, jOOQ and PostgreSQL on Google Cloud, with coding agents and backend on-call part of the role.
Director, Digital Solution Architecture & Experience Engineering
Calling all innovators - find your future at Fiserv. We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions,…
Applications Developer
Applications Developer at AdIns in Malang, Indonesia: writes programs from detailed specs, tests and debugs them to release quality, and maintains systems in production, plus authors user documentation and training materials. Preferred stack: .NET/ASP.NET/C#, Java, Kotlin, SQL Server; a CS-related degree with GPA above 3.00 is required.
Full Stack Engineer
Full Stack Engineer at OCBC Bank in Singapore building and maintaining scalable banking applications, RESTful APIs, and user interfaces, plus server automation for Windows/macOS/Linux. Core stack: Java plus C#/Kotlin/Golang, microservices, Kubernetes/Docker, and React/AngularJS front ends.
Full Stack Engineer
Junior-friendly full-stack engineering role (0-3 years) at a Canadian real estate technology company, remote from anywhere in Canada. You'll code daily and ship features across web, mobile, and data platforms using a modern language (TypeScript, Python, Java/Kotlin, or Go), with mentorship from senior engineers.
Lead Software Engineer ( Purchas Core)
Lead Software Engineer on Sunbit's Purchase Squad, building and maintaining the core loan application system: solving complex architecture problems, writing clean code, and mentoring junior engineers. Preferred stack includes Kotlin/Java, Spring, AWS, microservices, and event streaming.
Senior Software Engineer
Lead-level senior engineer on Sunbit's Merchant-Ops squad in Tel Aviv, owning technical leadership, architecture, and delivery of merchant-facing web, mobile, and backend products. The stack leans on Kotlin/Java, Spring, AWS, and microservices in a real-time fintech payments environment.
Architekt Kotlin Multiplatform
Mobile architect leading development of a new Kotlin Multiplatform (KMP + Compose Multiplatform) banking app for Bank Pekao: designs shared Android/iOS architecture, sets technology and security standards, oversees mobile CI/CD and app releases, and mentors a 3-engineer KMP team. B2B contract, hybrid with ~1 office day/week.
Инженер по тестированию ПО (Junior+ / Middle)
Мы в поисках амбициозного и активного специалиста в области тестирования ПО, готового развиваться и принимать активное участие в интересных проектах Обязанности: проведение ручного и автоматизированного тестирования…
Senior Deployment and Integration Engineer
Office-based senior engineer in Nagpur (APAC hours) leading a team that deploys and integrates systems on GCP — building infra with Terraform and CI/CD, running Kotlin/Java microservices on PostgreSQL/Redis, and managing third-party API, webhook and SFTP integrations. Bonus exposure to telephony/SIP, WebRTC and GenAI.
Frontend Developer - AI Trainer
Fully remote AI-training role: you solve assigned coding challenges, write clean code examples with thorough explanations, review AI-generated code for correctness and readability, and share detailed feedback to improve model performance. Requires fluent English, strong skill in at least one language/framework (JavaScript, Python, React, etc.), and a bachelor's degree; paid hourly per project.
Python QA Automation / SDET (Quantum, Hardware Virtualization)
Fully remote senior QA Automation / SDET role (6+ years) building Python-based test automation for server virtualization and hardware emulation (QEMU, KVM, libvirt), with integration/system/API testing over REST/gRPC plus Pytest, Ansible, and CI/CD.
Développeur Java/Kotlin confirmé - Freelance (H/F)
Freelance Java/Kotlin developer (6-10 years experience) for a high-traffic website based in Seine-Saint-Denis (93), France. Day-to-day work covers developing and maintaining Java/Kotlin applications, CI/CD deployment to AWS cloud (Docker/Kubernetes), and site performance optimization, with AI tooling like GitHub Copilot. Daily rate €450, 2 remote days per week.
Software Mobile Engineer
Mobile engineer on Weave's fully remote (India) team, building cross-platform iOS/Android apps in Flutter/Dart for its healthcare practice platform. Day to day: shipping UI features, integrating backend APIs and local storage, writing tests, and debugging performance issues.
Junior Softwareentwickler (m/w/d) - eHealth Experts GmbH
Junior software developer building and maintaining features for products serving the German healthcare system (TI 2.0). Day to day: writing clean, tested Java/Kotlin code, analyzing and fixing bugs within gematik specifications, and collaborating in an agile team.
Senior Software Engineer (Fullstack) - Merchant EMEA
Builds full-stack features for merchant tools in Wolt’s logistics platform, using Go/Kotlin backends and TypeScript/React frontends with cloud-native tooling.
Senior Software Engineer (Fullstack) - Merchant EMEA
Senior fullstack engineer on Deliveroo's (DoorDash) Merchant EMEA team, building merchant-facing products like onboarding, analytics, and menu/order management across 37 countries. Backend in Go/Kotlin, frontend in TypeScript/React; hybrid role based in Berlin or Helsinki with no visa sponsorship or relocation support.
Principal Full Stack Software Engineer (P60) — Growth
Principal-level full stack engineer on Atlassian's Starburst Growth team, leading architecture and hands-on delivery (60-70% coding) of onboarding and cross-product journeys across Confluence, Loom, and TWC. Core stack: React/TypeScript micro-frontends, backend microservices (Java/Kotlin/Go/Python), GraphQL/REST, AWS, and Statsig-driven experimentation and telemetry.
Senior Principal Software Engineer
Senior Principal Engineer setting the technical direction for Atlassian's Enterprise Data Center products, owning the hardest cross-team architecture problems and mentoring 200+ engineers. Day to day spans strategy, design and hands-on Java/JVM coding across security, platform modernisation, Marketplace compatibility, cloud-migration tooling and AI-driven engineering efficiency.