11,088 Kotlin jobs
Open roles that use Kotlin for Android and JVM backends.
Senior Mobile Engineer (USA)
Fully remote (USA) Senior Mobile Engineer owning mobile product areas end to end — architecture, releases, and production health — for React Native apps at a global technology-enabled services company. AI-first/agentic development culture, with depth required below the React Native abstraction (Swift/Kotlin). $140k–$220k.
Customer Support Developer (Databases)
About Airbyte: We’re on a mission to make data available and actionable to everyone, everywhere. With 700+ connectors, our platform powers analytics and gives AI agents the business context they need to do real work.…
Customer Support Developer (Databases)
About Airbyte: We’re on a mission to make data available and actionable to everyone, everywhere. With 700+ connectors, our platform powers analytics and gives AI agents the business context they need to do real work.…
Sr. Software Engineer - Infotainment Software (Apple CarPlay)
Senior engineer at the Rivian–Volkswagen joint venture building in-vehicle infotainment apps with a focus on Apple CarPlay integration. Day to day involves Java/Kotlin and C++ development on Android (Jetpack, NDK, JNI), collaborating with UX/UI teams, and testing the experience in the lab and prototype vehicles.
Full Stack Java React Developer – Fintech (Milano)
Lenis in Milan is hiring a Full Stack Java/React Developer with 5+ years of experience for banking & fintech projects. Day to day: developing new features, taking part in analysis phases, coordinating junior colleagues, and working with business stakeholders. Core stack: Java, React, Kotlin.
Technical Solutions Engineer – Payment ISV & Developer Enablement
Builds and operates FEITIAN's developer portal so payment ISVs can access SDKs, evaluate Android-based payment terminals, and test payment apps, while serving as the US technical contact for integration support. Core stack: Android, Java/Kotlin, REST APIs/SDKs, plus Git, Postman, and Jira.
Senior Security Engineer
First dedicated security engineer at Spruce Health, a cloud healthcare communications platform. Owns security end to end — application/infra, endpoints and MDM for a remote Mac fleet, corporate IT, and AI tooling — including pen-testing, AWS hardening, incident response, and SOC 2/HIPAA compliance.
Software Engineer II-Hybrid Role
Mid-level software engineer at Payarc, a payments company, who designs, builds, and maintains payment applications, APIs, and backend services with limited guidance in a PCI DSS-compliant environment. Works across a broad stack including PHP/Laravel, Java, Python, React, AWS, and Docker/Kubernetes; hybrid role based in Greenwich, CT.
Senior Software Engineer, Platform
Senior full-stack engineer who owns IcyBox's internal operations platform — building tools for merchandising, inventory, fulfillment, finance, growth and support — shipping features end to end within days. Stack is a Rust backend, React/TypeScript frontend, PostgreSQL, plus data warehouse analytics; in person in NYC five days a week.
Backend-Developer (m/w/d) - Telematikinfrastruktur (TI)
Backend developer building and maintaining apo.com's pharmacy platforms and their integrations with Germany's Telematikinfrastruktur (TI), including E-Rezept and KIM. Works on REST APIs (OpenAPI), a Kotlin/FHIR E-Rezept client, and MySQL-backed systems using PHP or Kotlin. 0–100% remote within Germany or at the Markkleeberg office near Leipzig.
Engenheiro de Software BackEnd Pleno
Mid-level backend engineer at iFood building and running the entity-data/messaging platform: microservices and Kafka event consumers that orchestrate push, WhatsApp, SMS and RCS at scale. Stack is Kotlin/Spring Boot or Go on AWS/Kubernetes with PostgreSQL/DynamoDB/Redis, full observability and on-call ownership.
Senior Software Developer (Java / Kotlin)
Senior backend developer at ADDENDUM, an IT team-augmentation firm, working on a securities trading automation project in the banking sector: designing and delivering Java/Kotlin + Spring Boot backend services, REST APIs, system integrations, and SQL optimisation. Hybrid role in Vilnius; candidates must already be based there.
Senior Software Engineer (Java / Kotlin)
Senior backend engineer at ADDENDUM, a team-augmentation firm, working on a securities trading automation project in banking in Tallinn (hybrid, must be based there). Day to day: designing and building Java/Kotlin + Spring Boot services, REST APIs, system integrations, and SQL database work to automate trading and settlement.
Staff Software Engineer, AI Developer Experience
Staff engineer on SoFi's internal AI Developer Experience team, owning end-to-end platform systems — AI gateway, model routing, eval platform, harness vending, and AI cost telemetry — that let SoFi engineers ship faster and safer with AI. Built with modern backend languages (Java/Kotlin/Python/Go/Scala), distributed systems, and cloud infra (AWS/GCP).
Senior Android Engineer - Fan Monetization
Mid-level Android engineer on SoundCloud's Fan Monetization team, building fan-facing mobile features almost entirely in Kotlin and Jetpack Compose for millions of users, while collaborating with distributed product/design/data teams and leveraging AI tools to accelerate development.
Senior Backend Engineer - Java/Kotlin Microservices
Senior backend engineer at NS (Dutch Railways) in Utrecht, working in a DevOps team on the business-critical Donna application that manages train timetables. Day to day: contributing to architecture, writing scalable code, and delivering functionality in 2-week sprints using Kotlin/Java, Spring Boot, Kubernetes and CI tools.