11,000 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
Agentic Software Engineer
Drivs du av att se dina idéer bli verklighet? Välkommen till vår spännande och teknikintensiva värld. Mjukvaruutveckling förändras snabbt. Nya AI-drivna arbetssätt skapar möjligheter att utveckla, testa och leverera…
Android Mobile App Developer
This role is for one of Weekday’s clients Salary range: Rs 2500000 - Rs 3500000 (ie INR 25 - 35 LPA) Min Experience: 3+ years Location: Bangalore JobType: full-time We are looking for a skilled and experienced Android…
Middle Backend Developer (Java/Kotlin)
We are looking for a Middle Backend Developer (Java/Kotlin) . What We Offer: the opportunity to influence technical and architectural decisions; involvement in the full development lifecycle, from design to deployment;…
Sr Software Engineer
The Company PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers…
Staff Software Engineer, Backend
Staff Backend Engineer at Genius AI (HearstLab) — a hands-on IC role setting backend architecture for AI-powered 0-to-1 products, integrating LLMs into production systems, shipping proof-of-concepts, and unblocking engineers. Core technologies: Kotlin, AWS, and Kubernetes, with TypeScript as a plus.
Software Engineer - All Levels
Genius AI (via HearstLab/PowerToFly) is hiring software engineers at all levels in New York City to build AI agents for appointment-based service businesses — either shipping AI-powered product features or the scalable platform behind systems processing billions in payments. Stack: Kotlin/gRPC, TypeScript/React, AWS, Kubernetes, Postgres, Terraform.
Software Engineer Intern Winter 2026-2027
In-person software engineering internship (Winter 2026-27) with Genius AI at Union Square, NYC, posted via HearstLab: build and test web/mobile features and AI-powered automations for an agentic product used by hundreds of thousands of service businesses. Stack exposure includes JavaScript/TypeScript, Ruby, Kotlin, React, Postgres, SQL, and gRPC; in-office Tuesdays and Thursdays required.
Kotlin / Java Developer (Permanent)
Junior Kotlin developer at Enginium, the tech consultancy of Gi Group Holding, working in a structured team on Android Auto-based infotainment code for automotive clients. On-site in Turin with 2 days/week smart working; RAL range €28-32k.
QA Engineer II
QA Engineer II at Toast (restaurant POS/management SaaS) in Bengaluru: creating test plans, running manual and automated regression/API testing for guest-engagement features across Android tablets, web apps, and backend Java microservices. Key tools include Selenium, Playwright, Postman, TestRail, and Jira.
Mobile Engineer, Part-Time AI Coding Task - Remote (United States)
Part-time, fully remote contractor role for US-based mobile engineers: create realistic coding tasks, build reproducible environments, write validation checks, and provide reference solutions in React Native, Flutter, iOS, or Android to train and evaluate AI coding models, ~15 flexible hours per week, paid per accepted task at the equivalent of $50-$100/hour.
Android Software Engineer
Designs, builds, and maintains native Android applications tightly integrated with IoT device hardware (live video streaming, real-time device control). Core stack: Kotlin and Java, Android SDK, Jetpack Compose/XML, Coroutines/Flow, and Dagger dependency injection.
Staff Data Infrastructure Engineer Kitchener-Waterloo, ON; Toronto, ON
Staff engineer who owns Faire's data platform plumbing: designs and personally builds the CDC/streaming pipeline from production databases (CockroachDB, MySQL) through Kafka into Iceberg on S3, feeding Snowflake and Databricks. Also runs Airflow/Fivetran, sets data quality SLAs, and mentors engineers.
Senior FX Trading Full-Stack Engineer | Hybrid London
Senior full-stack developer for a hybrid London role building and scaling strategic FX trading software: modern React/TypeScript UIs plus Java/Kotlin Spring Boot backends with Kafka and streaming APIs, owning features from concept to production in a fast-paced financial environment.
Full Stack Developer - FX/Trading
Senior full stack developer on a London-based team building and scaling strategic software for a major FX trading business, owning features end to end. Core stack: Java/Kotlin with Spring Boot, Kafka and Project Reactor on the backend, React/TypeScript on the frontend, running on Kubernetes and Azure.
FX Linear Client & Trading - Full-stack Developer
12-month contract (inside IR35) for a senior full-stack developer on a London FX trading platform: building server-side services and real-time APIs in Java/Kotlin (Spring Boot, Kafka, Project Reactor) plus React/TypeScript UIs, deployed on Kubernetes/Azure. Hybrid, 3 days per week in the London office.
ML 백엔드 엔지니어 (ML Backend Engineer)
Designs and builds backend services for AI-driven banking products, focusing on scalable ML model serving and robust server architecture in a microservices environment.
서버 개발자 (Commerce) (Server Developer)
Builds and operates core commerce systems (search, recommendations, orders, payments, ads) for Toss Shopping, a fast-growing B2C marketplace, using Kotlin/Spring and distributed data stacks.
서버 개발자 (FEP) (Server Developer)
합류하게 될 팀에 대해 알려드려요 FEP Team은 고객 채널이 아닌 대외기관과의 인터페이스를 개발하고 운영해요. 한국거래소, 한국예탁결제원, 금융결제원, 금융투자협회, 은행연합회 등의 다양한 유관기관이 존재하고, 해당 기관과 네트워크 프로그래밍을 통해 통신을 하고, 주문/체결/이체/입출고 등 다양한 업무를 처리하기 위한 대외접속 플랫폼을 개발하고 운영해요. 토스증권의 Server…
서버 개발자 (Market Platform) (Server Developer)
Develops and optimizes high-performance real-time trading platforms (e.g., stock market data feeds) for Toss Securities, designing scalable architectures for APIs/WebSockets, low-latency event processing, and inter-institution communication using Go, Kotlin/Spring, and Kafka.
서버 개발자 (Platform) (Server Developer)
Builds shared backend services and frameworks in Java/Kotlin with Spring to help teams launch and scale securities services efficiently.