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11.2K jobs
Navan
9 views 3 days ago

Senior Android Engineer

New Europe, UKSenior 6 questions
London

Navan is looking for a Senior Android Engineer to design, build, and enhance our mobile applications in the business expense management space. As a key contributor, you will work closely with our international team of…

Accessibility AI Android Authentication CI/CD +7 skills
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Duolingo Backed by Union Square Ventures
83 views 3 days ago

Senior Software Engineer, Backend

Likely evergreen North AmericaSenior 11 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 States
New York, NY, Pittsburgh, PA

Backend engineer on Duolingo's Ads team building and scaling ad serving, mediation, and demand systems using Java, Python, or Kotlin with cloud infrastructure and database technologies.

AI API Backbone.js Cloud Datadog +7 skills
183K – 247K $
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Duolingo Backed by Union Square Ventures
68 views 3 days ago

Senior/Software Engineer II, Android

Open 115d North AmericaSenior 11 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 States
New York, NY, Pittsburgh, PA

Develops and maintains Duolingo's Android app in Kotlin, focusing on features that convert users to paying subscribers while mentoring junior engineers.

Android API Kotlin
153K – 207K $
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Duolingo Backed by Union Square Ventures
21 views 3 days ago

Senior Software Engineer, Backend, Monetization

Open 82d APACSenior 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.
China
Beijing

Senior backend engineer building and scaling Duolingo’s monetization systems (subscriptions, ads, in-app purchases) using Java/Python/Kotlin and cloud APIs.

API Cloud Data Science Datadog Grafana +7 skills
805K – 1.1M CNY
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Duolingo Backed by Union Square Ventures
20 views 3 days ago

Senior Software Engineer, Android, Monetization

Open 82d APACSenior 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.
China
Beijing

Build and refine Android features in Kotlin for Duolingo’s monetization systems, collaborating with product, design, and data teams to optimize subscriptions, ads, and in-app purchases.

Android API Data Science Kotlin Machine Learning
805K – 1.1M CNY
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Duolingo Backed by Union Square Ventures
24 views 3 days ago

Senior Site Reliability Engineer

Open 59d North AmericaSenior 11 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 States
New York, NY, Pittsburgh, PA

Duolingo is hiring a Senior Site Reliability Engineer in Pittsburgh to keep its large-scale distributed systems reliable and scalable. Day to day: supporting core infrastructure, incident response and postmortems, and building automation/tooling using Java/Kotlin/Python/Go and container technologies like Docker and Kubernetes.

Automation Containerization Distributed Systems Docker Java +6 skills
183K – 247K $
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smartsheet
73 views 3 days ago

Software Engineer (Remote Eligible in Bulgaria)

Open 25d RemoteEurope 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.
Bulgaria
-REMOTE, BULGARIA-

Remote Software Engineer in Bulgaria joining Smartsheet's Intelligent Work Management platform, contributing across the full development lifecycle — implementing features, building service APIs for millions of users, and improving scalability. Core stack: Java and Go microservices (plus some Kotlin) on AWS with Terraform, and React on the front end.

Agentic AI AI API Automation AWS +19 skills
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Awareson Sp. z o.o.
3 days ago

Senior Backend Engineer (Java/Kotlin, AI-assisted development)

New RemoteEuropeFull-timeSenior
Poland
Warszawa

Wynagrodzenie B2B: 140 – 170 PLN / godz. netto We are looking for: Senior Backend Engineer (Java/Kotlin, AI-assisted development) General info: Location: remote (occasional on-site planning meetings in Poland) Start:…

AI Java JVM Kotlin Observability +2 skills
140 – 170 PLN / hr
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Vantari Recruitment Group
8 views 3 days ago

Senior Java Backend Engineer for Secure, High-Performance Systems

New MENASenior
United Arab Emirates

Vantari Recruitment Group is hiring a senior backend engineer in Abu Dhabi to build secure, high-performance cellular communications systems. Day-to-day work centers on designing distributed backend services with Kotlin, Java, Akka, Gradle, GitLab and Docker, using DDD and reactive architecture in agile, CI/CD-driven teams.

Agile CI/CD Docker GitLab Gradle +2 skills
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Plata
213 views 3 days ago

QA Engineer - Backend (Golang) Senior [Core Banking Systems]

Open 70d RemoteWorldwideSenior 2 questions

The QA Engineer will focus on backend testing for core banking systems, developing automated tests in Go and maintaining testing infrastructure. The role involves both manual and automated testing within a microservices architecture using Kafka and PostgreSQL.

CI/CD Design Patterns Git Go gRPC +10 skills
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Accso
3 days ago

Senior Java Engineer

New HybridEuropeSenior
Germany
Darmstadt

##### **This is what awaits you:** - You work on consulting and software development projects with clients such as AXA, BMW, Deutsche Bahn and ZDF - You design, develop and implement software solutions by applying AI…

Agentic AI Agile AI Automation Design Thinking +12 skills
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Accso
3 days ago

Senior Fullstack Developer - Java, Spring, Angular

New HybridEuropeSenior
Germany
Darmstadt

##### **This is what awaits you:** - You work on consulting and software development projects for clients such as AXA, BMW, ZDF and Deutsche Bahn - You design, develop and implement software solutions by applying AI…

Agentic AI Agile AI Angular Automation +9 skills
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Accso
3 days ago

Mobile App Developer Android, iOS

New HybridEuropeMiddle
Germany
Darmstadt

##### **This is what awaits you:** - You work on consulting and software development projects for clients such as AXA, BMW, DPD, Deutsche Bahn and ZDF - You design, develop and implement software solutions by applying…

Agentic AI AI Android Automation Bootstrap +17 skills
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Tebi Backed by Index Ventures
72 views 3 days ago

Senior Backend Engineer

New On-siteEuropeFull-timeSenior 4 questions
Netherlands
Amsterdam

About Us Tebi is creating the first Connected Restaurant Management System that makes hospitality flow. In one seamless platform, Tebi embeds sales, reservations, kitchen prep, payments, and all the data that powers…

AI API Distributed Systems Docker Event Driven Architecture +6 skills
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GeoEdge
3 days ago

Presales Solution Engineer, APAC

New On-siteAPAC
China
Beijing, Beijing

About the role AppHarbr, a fast growing SDK product by GeoEdge, protects mobile apps and their users from malicious, offensive and low quality ads in real time. Backed by GeoEdge’s expertise in ad security, we help app…

Android Flutter HTML iOS Java +13 skills
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Sedna
6 views 3 days ago

Software Engineer - VMS

New Europe 3 questions
Norway
Bergen

Senior Software Engineer Our Tech Stack: About Sedna: Sedna is at the forefront of revolutionising the operating system for shipping. Our AI-powered platform is designed to make global trade more efficient,…

Agile AI API AWS CI/CD +15 skills
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Pedidosya
8 views 3 days ago

Sr Software Engineer Backend

New LATAMSenior
Argentina
Buenos Aires

Senior backend engineer joining PedidosYa's Purchase team within the Payments domain at Latin America's leading delivery and quick-commerce platform. Day to day: designing and building scalable microservices with Java, Kotlin, or Go, backed by MySQL/MongoDB/Redis and running on AWS.

AWS Go Java Kotlin Microservices +3 skills
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DKB Code Factory
17 views 3 days ago

Mid Android Developer

Open 55d EuropeFull-timeMiddle 5 questions
Spain
Valencia

Develop a scalable mobile banking app for small and mid-sized businesses using Kotlin and Jetpack Compose. You will design modular Android architecture (MVVM), integrate backend APIs, and maintain CI/CD pipelines within an agile team in Valencia.

Accessibility Agile Android API Git +8 skills
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Unknown company
5 views 3 days ago

Ведущий Java-разработчик в новый продукт

New Lead

Lead Java/Kotlin developer for a new product at MTS Bank (per the career channel in the URL): building server-side applications in Kotlin, contributing to architectural decisions, and helping evolve the company's technical processes.

Kotlin
BORA
125 views 3 days ago

iOS Developer (all genders)

Open 54d RemoteEurope
Austria

Builds and ships native iOS apps (BORA App, Joy App) for BORA's kitchen-appliance ecosystem using Swift/SwiftUI and Kotlin Multiplatform, including IoT/BLE integration, code reviews, and coordination of external partners in an agile internal digital team.

CI/CD iOS IoT Kotlin Swift
from 3K € / mo
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