Senior Java Developer

hace 2 semanas

Barcelona, Barcelona, España Wizeline A tiempo completo

We Are
Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there's no limit to what we can achieve.

Are you a fit?

Sounds awesome, right? Now, let's make sure you're a good fit for the role:

We are looking for a
Senior Java Developer
to design, build, and scale high-performance backend systems in a modern, cloud-native environment. In this role, you will work on distributed, mission-critical applications, collaborate with cross-functional teams, and contribute to architectural decisions that impact product scalability, reliability, and performance.

Key Responsibilities

  • Design, develop, and maintain scalable, high-performance backend services using Java (11/17/21) and Spring Boot.
  • Build and evolve RESTful APIs and microservices following best practices for reliability, security, and maintainability.
  • Design and support distributed systems and microservices architectures, leveraging Docker, Kubernetes, and service mesh patterns (e.g., Istio).
  • Collaborate with DevOps and platform teams to implement and improve CI/CD pipelines, deployment strategies, and environment management.
  • Optimize application performance through profiling, monitoring, and tuning of memory, concurrency, and data processing.
  • Ensure high code quality through unit, integration, and automated testing.
  • Participate in architectural discussions and provide technical guidance to peers.
  • Troubleshoot production issues and contribute to continuous system improvements.

Must-have Skills

  • Bachelor's Degree in Computer Science, Engineering, or a related field.
  • 5+ years of professional experience as a Java Developer or Backend Engineer.
  • Advanced knowledge of Java (11/17/21), including multithreading, concurrency, memory management, and performance optimization.
  • Strong experience with Spring Framework and Spring Boot, including Spring Data/JPA.
  • Hands-on experience designing and maintaining microservices-based architectures.
  • Proficiency with Docker and Kubernetes, including deployment and orchestration concepts.
  • Solid understanding of CI/CD pipelines (e.g., Jenkins), automated testing, and release management.
  • Experience working in cloud environments such as AWS or Azure.
  • Strong background in unit and integration testing using JUnit, Mockito, or similar frameworks.
  • Experience defining performance metrics, identifying bottlenecks, and resolving scalability issues.
  • English level: Advanced / Fluent (spoken and written).

Nice-to-have

  • AI Tooling Proficiency: Ability to leverage AI tools to optimize day-to-day work, including code generation, debugging, documentation, analysis, or process automation. Identify opportunities to improve developer productivity using AI.
  • Experience with monitoring and observability tools such as Prometheus and Grafana.
  • Knowledge of advanced deployment strategies (blue/green, canary, rolling updates).
  • Exposure to event-driven architectures or messaging systems (Kafka, RabbitMQ).
  • Experience working in agile or DevOps-oriented teams.

What we offer

  • A High-Impact Environment
  • Commitment to Professional Development
  • Flexible and Collaborative Culture
  • Global Opportunities
  • Vibrant Community
  • Total Rewards
  • Specific benefits are determined by the employment type and location.

Find out more about our culture here.

  • Senior Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España Melt Group A tiempo completo

    Si eresDesarrollador/a Senior Java con más de 5 años de experiencia,y crees que es un buen momento para iniciar un nuevo reto profesional, enMelt Groupte estamos buscando.Empecemos por la empresa:Se trata de unaempresa tecnológica con más de 30 años en el sector, especializados en tecnología de transformación digital. Con un producto propio operativo...

  • Senior Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España WIZELINE A tiempo completo

    Senior Java DeveloperWe are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and...

  • Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España PIXIE A tiempo completo

    Buscamos profesionales Java Developer con unos 2 años de experiencia para unirse a un equipo técnico en crecimiento, participando en el desarrollo de microservicios con Spring Boot, y colaborando en el despliegue en AWS trabajando con Docker.ResponsabilidadesDesarrollo y mantenimiento de microservicios en Java (Spring Boot).Diseño y consumo de APIs REST,...

  • Java Developer

    hace 1 día

    Barcelona, Barcelona, España Setexe A tiempo completo

    Company DescriptionSetexe International, founded in 2020, is dedicated to driving digital transformation through cutting-edge software solutions. Our team of expert developers, designers, and strategists creates custom applications tailored to unique business needs. We specialize in software development, mobile app development, cloud solutions, UI/UX design,...

  • Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España MCEng España A tiempo completo

    MCENG ESPAÑA es una empresa de consultoría especializada en Tecnologías de la Información, fundada a principios de los años 2000. Con tres sedes en Italia - Turín, Milán, Roma – y una en España: Barcelona, somos un socio estratégico con un alto contenido técnico.Nuestro enfoque centrado en el ser humano, la competencia y la innovación...

  • Senior Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España Adaptive Financial Consulting A tiempo completo

    WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage.Our clients include the world's...

  • Senior Java Developer

    hace 1 día

    Barcelona, Barcelona, España Adaptive Financial Consulting A tiempo completo

    WE ARE:At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage.Our clients include the world's...

  • Senior Java Developer

    hace 2 semanas

    Barcelona, Barcelona, España Sage A tiempo completo

    DescripciónWe're looking for an experienced Senior Software Engineer to join our team in Barcelona. You'll play a key role in designing, building and maintaining high-quality backend solutions that power our products.The role offers the opportunity to work with modern Java frameworks (including Spring, Spring Boot, Vert.x) as well as Ruby on Rails. While...

  • Java Developer

    hace 1 día

    Barcelona, Barcelona, España Neotalent Conclusion A tiempo completo

    ¿Quiénes somos?:Neotalent Conclusion es una de las mayores especialistas del mercado ibérico en captación y gestión de talento informático y de ingeniería. Como parte del grupo neerlandés Conclusion, que se compone por un ecosistema de 25 empresas y 3.600 empleados, nos centramos en aumentar la capacidad tecnológica de nuestros clientes y acelerar...

  • Java Developer

    hace 1 día

    Barcelona, Barcelona, España Edreams A tiempo completo

    Java Developer - Travel Things (Hybrid) As you contemplate your future, you might be asking yourself, what's the next step? Start your journey with usWe're seeking an experienced Java Developer to join our team in Barcelona or Milan (Hybrid) to create a one-stop-shop for our customers, where they can find the best travel options for their needs and...