11,119 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
Java Software Engineer (Strategy)
A mid-level Java developer on IMC Trading's Mumbai Strategy Development team, building high-performance trading systems — algorithms, pricing, risk and analysis tools — end to end alongside traders and quant researchers. Core stack: Java 21+, Python, Docker, Kubernetes, Kafka and Avro.
Senior iOS Engineer, Futures
Senior iOS engineer building and maintaining Binance's cryptocurrency exchange app: designing architecture, developing core app modules, and optimizing user experience on iOS using Swift and UIKit, while collaborating with cross-functional teams to ship new features.
Senior Full-Stack Software Engineer / Technical Lead
Hands-on technical lead role at an early-stage, founder-led San Francisco team building consumer finance infrastructure for emerging markets (virtual banking, stablecoin/crypto wallets, cross-border payments). The engineer sets architecture and standards across a Python/FastAPI, React/TypeScript, PostgreSQL, and AWS stack while mentoring engineers.
Senior Android Developer - Cryptographic
Senior Android engineer building Binance's MPC Wallet client: developing features, optimizing architecture, implementing security modules (key management, MPC signing, device binding), tuning performance, and driving testing/CI standards. Core stack is Kotlin with Jetpack, OkHttp/Retrofit, and Hilt/Koin.
Senior Software Engineer – IoT & Energy Systems 100%
Senior Software Engineer at Sontex SA, a Swiss manufacturer of thermal energy metering systems, to build and maintain Windows/Android configuration apps (optical/NFC interfaces) and a radio reading platform for remote metering infrastructure, covering the full software lifecycle with Java, Kotlin/Android and IoT protocols.
Lead Mobile Developer - iOS
Thoughtworks is hiring a Lead Mobile Developer (iOS) in Quito to act as the main client contact, leading and mentoring delivery teams while still hands-on coding. Core stack includes Swift/SwiftUI plus other mobile languages (Kotlin, Dart, JavaScript) with TDD, Agile/Lean, continuous delivery and DevSecOps practices.
Staff Software Engineer, Mobile QA
Staff engineer who owns Coinbase's mobile QA infrastructure strategy during a native Swift/Kotlin rewrite of the retail app — building automated regression and release-readiness systems, defining quality SLOs and dashboards, and mentoring engineers across ~30 product teams.
Senior Software Engineer, Mobile QA
Senior Software Engineer, Mobile QA at Coinbase will own automated regression test suites and test infrastructure for the greenfield native (Swift/Kotlin) rewrite of the retail mobile app, integrating quality checks into CI/CD and the AI-assisted code generation loop, plus quality dashboards and SLOs for app stability.
Senior Software Engineer, Native Mobile
Senior engineer on Coinbase's App Infra team rewriting the retail mobile app from React Native to native Swift and Kotlin. Builds core iOS/Android app surfaces, optimizes performance across device tiers, and works within an AI-assisted (LLM) code generation loop while setting architecture and quality standards for the future native mobile platform.
Staff Software Engineer, Native Mobile
Staff engineer on Coinbase's App Infra team leading a greenfield rewrite of the React Native app into native Swift (iOS) and Kotlin (Android), including agentic AI-driven code translation, architecture, developer experience, and CI/CD for an app serving millions of customers.
Senior Staff Software Engineer, Native Mobile
Senior Staff Engineer on Coinbase's App Infra team leading the company-wide migration off React Native to native Swift (iOS) and Kotlin (Android) apps, using AI-assisted code translation at scale. Day to day: setting mobile architecture, building AI-automation tooling, and aligning ~30 product teams through the dual-app transition.
Desenvolvedor Front End Sênior
Senior front-end role at Evertec, a financial technology company serving banks and fintechs across Latin America. Day to day involves building cross-platform and native mobile apps with React Native, Kotlin/Android and Swift/Objective-C, plus web work in JavaScript/HTML5/CSS3, using Scrum, REST APIs, Gitflow and Figma.
Desenvolvedor Back End Sênior
Senior backend developer at Evertec/Sinqia building software for the financial sector, working day to day with Java/Quarkus on monolithic and microservices architectures, deployed via Docker, Kubernetes and OpenShift, with CI/CD, RESTful APIs and Scrum.
Senior Engineering Manager, Protect
Lead SoFi's Protect engineering organization building its next-generation insurance platform from Seattle: managing multiple squads, setting architecture for scalable cloud-native services, and partnering with product, design, risk, and compliance. Core tech: JVM (Java/Kotlin, Spring Boot), Kubernetes, AWS/GCP, Docker, Terraform, Kafka.
Senior Engineering Manager, Protect
Senior Engineering Manager leading SoFi Tech Solutions' Protect team, building a greenfield next-generation insurance platform. Day to day: hiring and mentoring multiple squads, setting architecture and delivery direction for scalable cloud-native microservices on Java/Kotlin (Spring Boot), Kubernetes, AWS/GCP, Docker and Terraform.
Android Developer (f/m/d)
Build and own the Android app for Germany's largest online lottery provider (LOTTO24/Tipp24), developing features with Kotlin and Jetpack Compose, managing releases and monitoring via Firebase, and contributing to the Angular/TypeScript webshop and Swift iOS app within a cross-functional domain team in Hamburg.
Staff Android Engineer
Build and lead Android trading experiences using Kotlin, Jetpack Compose, and modern Android APIs to power millions of users’ financial futures.