11,040 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
[Coupang Pay] Staff Back-end Engineer (Fintech Developer Platform)
Staff back-end engineer on Coupang Pay's fintech developer platform, designing and building platform services that support large-scale payment traffic, plus high-availability/DR architecture, CI/CD and DevOps tooling, and compliance with financial security regulations. Core stack: Python/Go/Java/Kotlin, Docker, Kubernetes, AWS, Prometheus/Grafana/Loki.
Director of Engineering, Fulfillment Optimization (Global Operations Technology)
본 공고는 재직 임직원을 대상으로 하는 사내 공모 전용입니다. ( 임직원 추천은 Link 로 진행 ) This posting is exclusively for internal employees. (Employee referrals are submitted via the Link) 지원 시에는 반드시 첨부된 ‘사내 공모 지원서 양식’을 작성한 후, 쿠팡 이메일 계정 으로 접수해 주시기…
Director of Engineering, Fulfillment Optimization (Global Operations Technology)
Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and…
Staff, Full-Stack Engineer [Rocket Growth Engineering]
Staff-level full-stack engineer on Coupang's Rocket Growth Engineering team, building and leading the fulfillment-by-Coupang seller platform (listings, order fulfillment, settlements) as large-scale distributed systems — working from front-end UIs to back-end services using languages like Java, Scala, Kotlin, C++, or C#.
Staff, Full-Stack Engineer [Rocket Growth Engineering]
Staff full-stack engineer on Coupang's Rocket Growth Engineering team, building and leading the Fulfillment by Coupang platform — large-scale distributed systems spanning seller listings, order fulfillment, and settlements. Day-to-day involves architecture roadmaps, coding in modern JVM languages (Java/Scala/Kotlin), and mentoring junior engineers.
Senior Staff Back-end Engineer (Rocket Pay)
Senior Staff Backend Engineer at Coupang Pay in Seoul, defining the technical direction and architecture of Rocket Pay, a next-generation universal payment platform serving tens of millions of users. Day to day: designing and operating large-scale Java/Kotlin + Spring payment systems (wallet, authorization, settlement, reconciliation) and mentoring engineers.
Staff Back-end Engineer (Rocket Pay)
Staff backend engineer on Coupang Pay's Product Engineering team, owning the technical direction of core payment services like Coupay — designing and evolving reliable, high-traffic fintech systems including payment back-office, settlement, and reconciliation platforms. Core stack is Java/Kotlin with Spring.
[CFN] Staff Back-end Engineer (Lending Engineering)
Build and run the back-end lending platform that powers financial services in Coupang’s ecosystem, using Java/Kotlin and Spring to handle high-volume transactions and ensure data integrity.
Staff Back-end Engineer [L6-1] (Coupang Financial)
Internal-transfer-only posting for a Staff Back-end Engineer on Coupang Financial's Lending Engineering team in Seoul. Day to day: designing, building, and operating Java/Kotlin + Spring distributed backend systems for large-scale financial services, ensuring data consistency, stability, and fast delivery of new lending products.
Staff Backend Engineer
Designs and builds high-scale backend systems that plan, distribute, and fulfill every Coupang order in real time using Kotlin/Java, optimization solvers, and distributed event pipelines.
Staff Backend Engineer
Designs and builds high-scale backend systems that plan, distribute, and fulfill millions of e-commerce orders in real time using Kotlin/Java, optimization solvers, and distributed architectures.
Manager, Back-end Engineering (Rocket Pay)
Leads a backend engineering team at Coupang Pay, building scalable fintech payment and financial services for Coupang’s platforms using Java/Spring/Kotlin and microservices.
Staff Back-end Engineer (Rocket Pay)
Staff backend engineer on Coupang Pay's Rocket Pay team in Seoul, designing, building, and operating Coupang's core payment platform. Focus is on scalability, stability, security, and performance of payment, settlement, and reconciliation systems at large scale, using Java/Kotlin and Spring.
Software Engineer III, Frontend (Storefront)
Builds and maintains Quince’s ecommerce storefront systems, including backend services, APIs, and customer-facing web/mobile apps, using full-stack development with Java/Spring Boot and JavaScript/TypeScript frameworks.
Senior Technical Consultant Java / Software Engineering (m/w/d)
Senior Technical Consultant (Java) for an award-winning technology and consulting house in the Rhein-Main region (hybrid, Mainz): you guide clients through digitalization and custom software projects — analyzing requirements, running workshops, translating business needs into technical concepts, and supporting architecture decisions with Java, Spring Boot/Quarkus/Jakarta EE, and modern frontend st
Full Stack Engineer
Full-stack engineer at 3Y Health, an AI-native operating system for healthcare practices: building AI agents and automated workflows for clinic ops (insurance verification, prior auth, intake, claims) and shipping web/mobile features end to end. Stack centers on Python and TypeScript with React/Next.js, PostgreSQL, Temporal, AWS, and daily use of AI coding agents like Claude Code.
Founding Engineer
About 3Y Health 3Y Health is building the operating system for healthcare practices, an AI-native platform that helps clinicians start, run and grow their practice. We work as a managed services organization (MSO):…
AI Product Engineer
About 3Y Health 3Y Health is building the operating system for healthcare practices, an AI-native platform that helps clinicians start, run and grow their practice. We work as a managed services organization (MSO):…
Backend API Engineer (Python/FastAPI) for App Connectivity
Mid-level engineer on Firefly Electric & Lighting's IT team in Manila, building REST APIs with Python/FastAPI to connect mobile apps to backend systems. Needs 1-3 years' mobile development experience, strong Python fundamentals, and familiarity with Kotlin/Java for Android or cross-platform work.
Automotive Qa Engineer - Data Quality & Ci/Cd
QA Engineer at DKB's tech hub in Alboraya, Spain, owning the team's testing approach: designing and expanding automated backend/API test coverage, ensuring test environments and test data readiness, and contributing to continuous testing and delivery. Core stack includes Java or Kotlin, SQL, and automated testing frameworks.