Ofertas de empleo para Kotlin

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada14 oct.

. Azure Kotlin Git Android REST iOS Gradle Office

Build smooth holiday journeys with Kotlin, Compose and serious ownership

At Sunweb Group, our Android app supports customers from holiday inspiration through booking and travel.

As our Senior Android Engineer, you will own features from the initial Figma design through development, testing, release and monitoring. You will work in Kotlin and Jetpack Compose on a long-lived codebase that is actively modernised—with quality, stability and customer experience at the centre of every decision.

Location: Girona preferred / Rotterdam possible

Way of working: Flexible hybrid

Contract: Full-time

Team: Team Cuba – Mobile

Your impact

• Build and evolve customer-facing Android experiences using Kotlin and Jetpack Compose.
• Own features from refinement and technical design through testing, Play Store release and production monitoring.
• Act as a technical reference for Android through code reviews, architectural decisions and mentoring.
• Align closely with iOS and backend engineers to deliver platform parity without sacrificing native quality.
• Evolve a modular Gradle codebase using pragmatic clean-architecture principles.
• Apply dependency injection, Coroutines and Flow effectively.
• Integrate and protect revenue-critical customer journeys involving payments, excursions, transfers etc.
• Use Firebase, Analytics and New Relic to understand user behaviour and improve app health.
• Use modern and agentic coding tools pragmatically to improve productivity and code quality.
  
  

• Jetpack Compose
• Gradle
• Coroutines
• Flow
• Kodein
• Ktor
• DataStore
• Compose Navigation
• GitHub Actions
• Fastlane
• Firebase
• New Relic
• Azure
• Figma
• Google Play Console
• Copilot
  
  

• Several years (5+) of strong Kotlin experience in production Android applications at meaningful scale.
• Production experience with Jetpack Compose.
• Solid knowledge of Coroutines, Flow, state management and the Android lifecycle.
• Practical experience with clean or layered architecture and dependency injection.
• Experience with Gradle in a multi-module project, including build types or flavours.
• Automated testing, Git workflows, code reviews and CI as standard engineering habits.
• Play Console release-management experience, including signing, versioning and staged rollouts.
• Experience consuming REST APIs and designing reliable caching behaviour.
• Experience integrating third-party SDKs or APIs, ideally including payment services.
• Professional working proficiency in English.
• A proactive, pragmatic and low-ego ownership mindset.
  
  

• Experience with high-traffic consumer, e-commerce or travel applications.
• Accessibility, localisation and performance-optimisation experience.
• Has design skills and mobile UI/UX experience.
• Spanish, Catalan or Dutch language skills.
  
  

• Play a central role in Android architecture and technical direction.
• Work on a modernising and well-maintained application where engineering judgement matters.
• Make a direct impact on customer journeys where reliability genuinely matters.
• Collaborate closely with iOS and backend engineers while retaining the strengths of native Android.
• Help shape digital holiday experiences used by customers across Europe.
  
  

• Monthly gross salary between €5400 and €6500 plus 6 ATV days (based on full-time employment, excluding 8% holiday allowance). Please note: ATV days do not apply to part-time contracts.
• We enjoy the journey so enjoy 25 holidays based on fulltime employment.
  
  

• Yearly gross salary between €56.000,- and €71.000- (based on full-time employment)
• We enjoy the journey so enjoy 23 holidays based on fulltime employment.
  
  

• Enjoy up to 20% off when booking with our brands for you, your family, and your friends.
• As an international company we support a hybrid way of working. We provide you with office furniture and IT equipment.
• A personalized Reflect & Develop Plan to support your career growth.
• Benefit from coaching sessions designed to support your well-being.
• Receive work-from-home and travel allowances to ease your daily routine.
  
  

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada14 oct.

. Kotlin Git Android iOS UX/UI

Senior Android Engineer (H/M/X)

Desde Experis buscamos un/a Senior Android Engineer para incorporarse a un equipo internacional responsable de la evolución y mantenimiento de una plataforma de componentes reutilizables utilizada por múltiples productos digitales.

La persona seleccionada tendrá un rol clave en la definición, desarrollo y mejora de componentes Android modernos, colaborando estrechamente con equipos de Producto, UX/UI y Desarrollo para garantizar una experiencia de usuario consistente, escalable y de alta calidad.

Responsabilidades

Diseñar, desarrollar y mantener componentes reutilizables en Android.

Definir e impulsar buenas prácticas de arquitectura, calidad y testing.

Participar en decisiones técnicas relacionadas con la evolución de la plataforma móvil.

Colaborar con diseñadores y desarrolladores para transformar requisitos funcionales ensoluciones técnicas.

Crear documentación técnica y fomentar la adopción de los componentes dentro de la organización.

Evaluar nuevas tecnologías y proponer mejoras continuas en herramientas y procesos.

Garantizar altos estándares de accesibilidad, rendimiento y mantenibilidad.

Requisitos

Más de 5 años de experiencia en desarrollo Android.

Experiencia avanzada con Kotlin, Jetpack Compose y Git.

Experiencia construyendo librerías o componentes reutilizables.

Conocimientos sólidos de testing automatizado (unit testing y UI testing).

Experiencia trabajando con Design Systems y componentes de interfaz escalables.

Conocimiento de principios de accesibilidad (A11y).

Capacidad para colaborar con equipos multidisciplinares en entornos internacionales.

Valorable

Experiencia con GitHub Actions o procesos CI/CD.

Conocimientos de iOS o tecnologías cross-platform.

Participación en comunidades técnicas u open source.

Experiencia creando librerías para terceros.

Conocimientos de Figma, Design Tokens o sistemas de diseño.

Interés por herramientas de IA aplicadas al desarrollo de software.

¿Qué ofrece la posición?

Proyecto internacional con alto impacto tecnológico.

Entorno innovador centrado en calidad técnica y experiencia de usuario.

Trabajo con tecnologías modernas del ecosistema Android.

Colaboración con equipos altamente especializados.

Flexibilidad y modelo de trabajo híbrido.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada13 oct.

Teletrabajo . Kotlin Android Fintech

Our mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.8 on Trustpilot, based on 55,000+ reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here).

Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,700 Qontoers serving over 750,000 customers across 8 European countries. We have been profitable since 2023, and we are just getting started.

Our beliefs: We hire for skills and potential. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn't a program; It's who we are. We've built a discrimination-free hiring process because the best teams are built on merit.

AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it.

Location: You can choose to work at Qonto as long as you're living in (or willing to relocate to) either Germany, France, Italy, Serbia, Portugal, or Spain.

➡️ Mission

Join us as an Android Engineer and help us build the mobile experience that 600,000+ European businesses rely on every day to manage their finances. You'll own product-critical features end-to-end — from technical design to rollout — in a large, modular Kotlin codebase where craft and velocity both matter. You'll work closely with Product, Design, Backend, and Frontend.

➡️ What you'll do

• Own features end-to-end: You'll take ownership from discovery and technical design through implementation, rollout, and iteration on features that help businesses pay, get paid, and stay in control.
• Drive technical decisions in your squad: You'll shape solutions with Product, Design, and Backend by clarifying tradeoffs across UX, performance, security, and time-to-market.
• Raise app reliability and maintainability: You'll improve architecture, performance, and test strategy to scale the app without compromising stability.
• Tackle complex mobile challenges: You'll contribute to real-time synchronization, resilience patterns, and smooth navigation in a modular codebase with ~1,000 modules.
• Grow the team's Android craft: You'll lead code reviews and technical discussions, share patterns, and mentor peers to raise the bar on quality and delivery.
  
  

• Strong Android native experience: You've shipped and maintained production features with Kotlin and are comfortable owning technical decisions end-to-end.
• Quality-driven mindset: You care about testing (unit, UI, snapshot), clean code, and pragmatic standards that keep teams moving fast.
• Problem-solving approach: You thrive in ambiguity and turn complex constraints into simple, robust solutions.
• AI-native workflow: You use AI coding tools daily to amplify your output — not just experiment with them.
• Collaborative by nature: You're fluent in English and contribute through code reviews, knowledge sharing, and mentorship across technical and non-technical stakeholders.
  
  

• An AI-first engineering environment: Unlimited access to Claude Code, Cursor, and Copilot — and a culture that expects you to use them to raise the bar, not just go faster (click here to read our vision statement on AI)
• Engineering standards that scale: Strong code review culture, continuous refactoring, and a focus on correctness in a regulated context.
• A technically demanding domain: Fintech constraints — security, compliance, real-time data — push you to solve problems most mobile engineers never encounter.
  
  

• We value upfront technical design, team reviews, and smart slicing — quality drives the velocity our customers need.
• Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates.
• Our lean toolbox, Kaizen and PDCA, lets you monitor and drive continuous improvement collaboratively with your peers and manager.
  
  

• Kotlin-first & modern concurrency: 100% Kotlin codebase with Coroutines + Flow throughout.
• Architecture: MVVM + Clean Architecture with modular design (~1000 modules).
• UI direction: New screens built with Jetpack Compose, with a large share of legacy views already migrated.
• CI/CD & quality: GitHub Actions, Bitrise, Firebase Test Lab, Sonar, Fastlane.
• Testing culture: 26k+ unit tests, 14k+ snapshot tests, 500+ UI tests.
  
  

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada9 oct.

. API Java MongoDB NoSQL Docker Kubernetes Kotlin Git REST AWS DevOps PostgreSQL Spring Microservices

Buscamos un Tech Lead Java con experiencia reciente liderando equipos y participando en decisiones de arquitectura.

Modalidad hibrida, con disponibilidad para desplazamientos regulares a la oficina de Jaén (2–3 veces/mes).

🎯 Responsabilidades

• Liderar técnicamente el desarrollo de plataformas backend basadas en microservicios
• Diseñar y evolucionar APIs REST (API-first, OpenAPI)
• Participar en definiciones técnicas, refinamiento y estimación de tareas
• Asegurar calidad de código, buenas prácticas y revisiones (code reviews)
• Colaborar con distintos perfiles técnicos en un entorno internacional
• Acompañar despliegues en producción bajo un enfoque DevOps y CI/CD
• Garantizar observabilidad, trazabilidad y rendimiento de los servicios

🧠 Requisitos técnicos imprescindibles

• +7 años de experiencia en desarrollo backend
• Java (11+) y experiencia sólida con Spring Boot (Web, Data, Security)
• Arquitecturas de microservicios
• Experiencia real con AWS (EC2, Lambda, API Gateway, DynamoDB / RDS, etc.)
• Contenedores y orquestación (Docker, Kubernetes)
• Bases de datos relacionales y NoSQL (PostgreSQL, MongoDB o similar)
• CI/CD, control de versiones (Git), y flujo de PRs
• Diseño limpio, principios SOLID y patrones de diseño

➕ Muy valorable

• Kotlin
• Arquitecturas reactivas (WebFlux, R2DBC, similares)
• Observabilidad (Grafana, OpenTelemetry, etc.)

🌍 Idiomas

• Inglés técnico (entorno internacional)

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada9 oct.

Teletrabajo . React Java Node.js Kotlin SaaS

Personio's intelligent HR platform helps small and medium-sized organizations unlock the power of people by making complicated, time-consuming tasks simple and efficient. Our team of 1,500 Personios is building user-friendly products that delight our 15,000+ customers and their 1.5 million employees. Ready to make an impact from day one?

The Role

At Personio, we’re building the leading People Operating System for small and medium-sized businesses across Europe.

As a Lead Full Stack Engineer, you will join the Payroll Experience team, responsible for making Personio Payroll feel effortless, intuitive and delightful for our customers.

This team owns the product surface and workflows that payroll managers rely on every day. Surfacing the right data in front of users at the right time - from payroll tasks, status views and flexible data exploration tools. The teams work impacts customer satisfaction directly by ensuring payroll feels transparent, in control, and stress-free.

You'll work across frontend and backend systems to deliver features that thousands of customers depend on every payroll cycle.

What You’ll Do

• Build full stack features that make payroll management intuitive and transparent for customers
• Design and implement backend services that surface the right data at the right moment
• Build flexible data views that allow customers to slice and dice payroll data to fit their needs
• Develop payroll task management tools that keep users in control of every step of the payroll process
• Improve the usability and clarity of payroll workflows, reducing friction and building customer confidence
• Collaborate closely with product managers and designers to craft experiences that delight users
• Ensure high performance and reliability across all customer-facing payroll features
• Contribute to architectural decisions that shape the future of the payroll product experience
  
  

• Strong experience as a Full Stack Engineer
• Experience working across frontend and backend systems
• Backend experience with languages such as Kotlin, Java, Node.js, or similar
• Experience building modern frontend applications (React or similar frameworks)
• Ability to deliver user-facing features end-to-end
• Strong collaboration skills with product and design teams
• AI Fluency: You have hands-on experience using AI to improve your workflow, and the sound judgment to know exactly when to rely on it and when to step in yourself.
  
  

• Experience building customer-facing SaaS products
• Experience working with complex workflows or data-heavy interfaces

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada9 oct.

Teletrabajo . API Agile Selenium Jenkins Kotlin Git Android iOS Swift QA

En Akkodis, combinamos soluciones digitales y de ingeniería para crear un futuro más inteligente para todas las personas. Con presencia en más de 30 países de Europa, Asia y América, apostamos por la innovación, aprovechando la experiencia de nuestro equipo y la tecnología para transformar industrias y ofrecer soluciones de vanguardia a los retos más complejos del mercado.

Actualmente estamos ampliando nuestro equipo y buscamos un/a QA Automation para incorporarse a un proyecto con grandes oportunidades de desarrollo profesional. Como QA Automation, desempeñarás un papel clave en la definición de estrategias de automatización, el desarrollo de frameworks de testing y la garantía de la calidad end-to-end de productos digitales dentro de entornos ágiles.

🎯 Eres la persona ideal si cuentas con…

✅Experiencia 2 años montando frameworks de automatización, no solo ejecutando tests.

✅ Experiencia y conocimientos actualizados de Swift y Kotlin, especialmente en entornos móviles iOS y Android. (INDISPENSABLE)

✅ Experiencia práctica con GitHub Actions ((INDISPENSABLE)) en proyectos productivos.

✅ Experiencia desarrollando frameworks de automatización y no únicamente ejecutando pruebas.

✅ Conocimientos de herramientas como Selenium, Cypress o Playwright.

✅ Experiencia integrando pruebas en entornos CI/CD.

✅ Conocimientos de Git y control de versiones.

✅ Capacidad para analizar logs y diagnosticar incidencias técnicas.

✅ Experiencia en metodologías Agile.

✅ Residir en Madrid.

💻 ¿Cómo será tu día a día?

🔹 Definir y evolucionar la estrategia de automatización de pruebas.

🔹 Diseñar, desarrollar y mantener frameworks y suites de pruebas automatizadas.

🔹 Integrar procesos de testing en pipelines de integración y despliegue continuo (CI/CD).

🔹 Asegurar la calidad end-to-end de los productos desarrollados por squads ágiles.

🔹 Participar en la automatización de pruebas UI y API.

🔹 Actuar como referente técnico, promoviendo buenas prácticas de testing y automatización dentro del equipo.

⭐ ¿Qué valoramos en tu perfil?

✔ Experiencia con Appium.

✔ Conocimientos en testing de APIs.

✔ Experiencia con Jenkins y/o Grafana.

✔ Conocimientos de BDD utilizando Cucumber/Gherkin.

✔ Certificaciones ISTQB.

✔ Perfil proactivo, orientado a la calidad y a la mejora continua.

🎁 ¿Qué ofrecemos en Akkodis?

📃 Contrato indefinido.

🏠 Modalidad 100% remota.

🌍 Incorporación a una compañía multinacional líder en tecnología e ingeniería.

✨ Plan de retribución flexible (ticket restaurante, transporte y beneficios de salud).

📚 Formación continua y acceso a programas de desarrollo profesional.

💸 Descuentos y ventajas exclusivas para empleados/as de Akkodis.

🚀 Participación en proyectos innovadores con tecnologías de última generación.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada30 sept.

. Cloud Coumputing Kotlin AWS PostgreSQL Spring

The Story So Far: We’re Building a Global Brand in Real Estate

Huspy is one of the leading property technology companies in EMEA.

Launched in 2020, we now operate in multiple cities across the UAE and Spain, expanding into Saudi Arabia and 3 more European markets by 2026. Today, we own the largest portion of the UAE mortgage market and are one of the fastest-growing players in every European city we’ve entered.

We’ve raised over $140 million (Series A and Series B) from the world’s top investors, including Sequoia Capital, Founders Fund and Balderton Capital, to reshape the homebuying journey through powerful technology and agent-first tools.

We’ve built a SuperApp that empowers real estate agents and mortgage brokers, bringing cutting‑edge technology to one of the world’s most traditional industries. We’re transforming how property transactions happen — faster, smarter, and better for everyone.

We’re not slowing down. The question is: will you be part of what’s next?

The Main Event: What You’ll Drive, Build, and Own

You will be working closely with product leaders and designers in teams responsible for the development of our Real Estate Agent Platform and Mortgage Broker Portal using modern, state of the art technologies in an innovative and collaborative environtment.

Tech stack: Kotlin / Spring Boot, PostgreSQL, AWS

• Hands-On Engineering: Contribute to the team’s codebase and take ownership of key technical deliverables while leading by example in software development practices.
• Engineering Excellence: Drive best practices in software development, ensuring high standards of code quality and product architecture. Actively participate in technical challenges and lead the implementation of scalable, maintainable solutions.
• Stakeholder Collaboration: Work closely with Product, Design, and Data teams to ensure clear communication and alignment on product goals and deliverables.
  
  

• Senior Engineering Experience: Strong technical background with a passion for building high-quality products and solving complex technical challenges.
• Product-Focused Mindset: Ability to work cross-functionally and collaborate with Product, Design, and Data teams to deliver impactful, client-focused products.
• Technical Expertise: Experience with modern development practices, CI/CD, and cloud technologies (AWS preferred).
• Collaborative Attitude: Excellent communication skills with the ability to foster an inclusive, engaging team environment.