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11,177 Kotlin jobs

Open roles that use Kotlin for Android and JVM backends.

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11.2K jobs
Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
147 views 5 days ago

Staff Software Engineer, Backend (Recoveries)

New RemoteEuropeStaff 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Poland
Remote Poland

Staff backend engineer on Affirm's Recoveries team (Repayments), setting technical strategy for the platform that recovers value from charged-off loans—partner integrations, payments and remittances, reconciliation, bankruptcy workflows, and customer-facing recovery experiences. Core stack: Python, Kotlin, AWS, MySQL, Kubernetes. Remote anywhere in Poland.

Analytics AWS Kotlin Kubernetes Maven +4 skills
365K – 485K PLN
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Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
154 views 5 days ago

Staff Software Engineer, Backend (Recoveries)

New RemoteEuropeStaff 8 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Spain
Remote Spain

Staff backend engineer on Affirm's Recoveries team, setting year-scale technical direction for the platform that recovers value from charged-off loans — partner integrations, payments, reconciliation, bankruptcy workflows, and customer-facing recovery experiences. Built with Python, Kotlin, AWS, MySQL, and Kubernetes; remote in Spain with an on-call rotation.

Analytics AWS Kotlin Kubernetes MySQL +3 skills
103K – 139K €
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Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
215 views 5 days ago

Staff Software Engineer, Backend (Observability)

New RemoteNorth AmericaStaff 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Remote US

Technical lead for Affirm's Observability team: hands-on backend work owning a 200+ TB/day telemetry pipeline (metrics, logs, traces) across 80+ Kubernetes clusters, plus setting the roadmap, mentoring six engineers, designing log sampling, and building observability into AI-assisted development. Stack includes Python/Kotlin, AWS, Flink, Kafka, OpenTelemetry, Terraform.

Agentic AI AI Analytics AWS Distributed Systems +9 skills
204K – 290K $
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Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
143 views 5 days ago

Senior Software Engineer, Backend (International)

New RemoteUKSenior 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
Remote UK

Senior backend engineer on Affirm's Payments International team, building and operating bank and card payment systems for international markets (teammates across UK, Spain, Poland). Day-to-day involves leading delivery, designing scalable services, and on-call support, using Python or Kotlin, AWS, MySQL, and Kubernetes.

Analytics AWS Distributed Systems Kotlin Kubernetes +2 skills
120K – 168K £
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Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
158 views 5 days ago

Software Engineer II, Backend (Payments)

New RemoteUKMiddle 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United Kingdom
Remote UK

Backend engineer on Affirm's Consumer Payments team, building and operating reliable, scalable payment systems that move billions of dollars a year. Day-to-day involves delivering project phases, designing APIs and backend services, and on-call support, using Python or Kotlin with AWS, MySQL and Kubernetes.

Analytics API AWS Distributed Systems Kotlin +3 skills
101K – 149K £
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Affirm Backed by a16zBacked by LightspeedBacked by Founders Fund
181 views 5 days ago

Software Engineer II, Full Stack (Card Pre-Swipe Experience)

New RemoteNorth AmericaMiddle 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada
Remote Canada

Full-stack engineer (level II) building Affirm Card's pre-swipe/checkout experience: customer-facing web features in React or Vue backed by Python or Kotlin services running on AWS, MySQL, and Kubernetes. The role includes phased project delivery, cross-functional collaboration, and on-call support for checkout-critical systems.

Analytics API AWS CAD Distributed Systems +6 skills
133K – 183K CAD
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HIRECLOUT
89 views 5 days ago

Senior Full Stack Software Engineer (USA)

New North AmericaContractSenior
United States

Senior full-stack engineer at a health & well-being technology company, directing AI agents to generate code, tests, and reviews while owning system design, API/data model decisions, and production accountability. Requires 5+ years full-stack experience (Java/Python/C#/Kotlin/Go), AWS/Azure, Kafka, and regulated-data (PHI/HIPAA) experience.

Agentic AI AI API AWS Azure +19 skills
150K – 200K $
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HIRECLOUT
179 views 5 days ago

Senior Mobile Engineer (USA)

New RemoteNorth AmericaFull-timeSenior
United States

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.

Accessibility Agentic AI AI API Authentication +8 skills
140K – 220K $
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Contabilizei
120 views 5 days ago

[Tecnologia] Especialista Sênior Full Stack (React Native / Back-end)

New RemoteLATAMSenior
Brazil

Senior Full Stack specialist at Contabilizei (Brazilian digital accounting platform) serving as an architecture reference for mobile full-stack teams: mentoring developers, guiding critical technical decisions, and driving scalability and observability. Stack focus: React Native front end with Java, Kotlin, Python or Node.js back end, plus daily AI-agent-assisted development.

Java Kotlin Microservices Node.js Observability +3 skills
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Airbyte Backed by Y CombinatorBacked by Accel
103 views 5 days ago

Technical Support Engineer

Open 18d RemoteNorth AmericaFull-time 3 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada

Technical Support Engineer at Airbyte, an open-source data integration platform with 700+ connectors: troubleshooting customer issues across APIs, connectors, and data pipelines via email, tickets, and calls, while feeding customer feedback to engineering and product. Requires strong REST/GraphQL API skills, API testing tools, and cloud/ELT knowledge; remote in Canada, Eastern timezone.

Agentic AI AI Airbyte Analytics API +32 skills
89K – 105K CAD
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Airbyte Backed by Y CombinatorBacked by Accel
41 views 5 days ago

Customer Support Developer (Databases)

Open 26d RemoteNorth AmericaFull-time 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

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.…

Agentic AI AI Airbyte Analytics Authentication +39 skills
99K – 115K $
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Airbyte Backed by Y CombinatorBacked by Accel
56 views 5 days ago

Customer Support Developer (Databases)

Open 26d RemoteNorth AmericaFull-time 3 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada

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.…

Agentic AI AI Airbyte Analytics Authentication +39 skills
101K – 110K CAD
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Rivian and Volkswagen Group Technologies
68 views 5 days ago

Sr. Software Engineer - Infotainment Software (Apple CarPlay)

New HybridNorth AmericaFull-timeSenior 8 questions
United States
Palo Alto, California

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.

AI Android API Cloud C++ +6 skills
147K – 202K $
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Lenis
43 views 5 days ago

Full Stack Java React Developer – Fintech (Milano)

New Europe
Italy
Lombardia

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.

Fintech Java Kotlin React
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FEITIAN Technologies US
25 views 5 days ago

Technical Solutions Engineer – Payment ISV & Developer Enablement

New North America
United States
San Jose

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.

Android API Api Documentation Business Development Customer Onboarding +11 skills
110K – 140K $
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Spruce Health
70 views 5 days ago

Senior Security Engineer

New RemoteNorth AmericaSenior
United States
San Francisco

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.

AI Android API Automation AWS +19 skills
200K – 225K $
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Payarc
57 views 5 days ago

Software Engineer II-Hybrid Role

Open 75d North AmericaMiddle
United States
Corporate Office, Greenwich, CT

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.

Agile AI Android Angular API +43 skills
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Infinite Edge, Inc
40 views 5 days ago

Senior Software Engineer, Platform

New On-siteNorth AmericaFull-timeSenior No extra questions
United States
New York City

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.

AI Analytics AWS Data Warehousing dbt +10 skills
180K – 220K $
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apo.com Group
85 views 5 days ago

Backend-Developer (m/w/d) - Telematikinfrastruktur (TI)

New HybridEurope
Germany
Markkleeberg

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.

API Design Patterns EPA FHIR HL7 +7 skills
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iFood
19 views 5 days ago

Engenheiro de Software BackEnd Pleno

New LATAMMiddle 7 questions
Brazil
Brasil

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.

AI API AWS CI/CD Claude Code +47 skills
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