Java Software Engineer - Barcelona (Hybrid)
Wizeline, an AI-native technology services company, is hiring a Java Software Engineer in Barcelona (hybrid) to build and maintain distributed backend systems. Daily work centers on Java 11-21 microservices with Spring Boot, Docker/Kubernetes with Istio, CI/CD (Jenkins), cloud (AWS/Azure), and automated testing and monitoring with Prometheus/Grafana.
- Compensation
- Not disclosed
- Location
- Barcelona
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Software engineering
- Posted
Skills
Must have
- Java 11/17/21 with deep understanding of multithreading, memory management, performance optimization, and concurrent data processing
- Spring & Spring Boot expertise: RESTful APIs, dependency injection, configuration management, Spring Data/JPA
- Microservices architecture experience designing and maintaining distributed systems with service mesh (Istio), Docker and Kubernetes
- Strong understanding of CI/CD pipelines (e.g., Jenkins), automated testing, and environment management (staging, prod, integration)
- Experience with container orchestration, deployment strategies (blue/green, rolling updates), and monitoring tools (Prometheus, Grafana)
- Working knowledge of cloud environments (AWS or Azure)
- Proficiency with JUnit, Mockito, and integration testing frameworks
- Ability to design and maintain automated API tests and validation suites within CI/CD pipelines
- Experience defining performance metrics, profiling, and resolving bottlenecks in large-scale systems
Nice to have
- AI tooling proficiency: leverage AI tools to augment daily work (drafting, analysis, research, automation) and recommend workflow improvements
Full description
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 achieveAre you a fit?
We are seeking a skilled Senior Java Software Engineer to join our team in building and scaling our next-generation automated translation and localization platform. In this role, you will work closely with our engineering and product teams to integrate state-of-the-art AI/LLM models and machine translation engines into our enterprise content-processing ecosystem.
You will design and implement high-performance microservices, event-driven pipelines, and robust APIs to support global media expansion, multi-language publishing, and real-time content delivery.
Key Responsibilities
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Platform Development: Develop and enhance core translation services and backend applications using Java and Spring Boot.
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Optimization & Evaluation: Support direct integrations with translation providers; continually evaluate and improve translation quality, system scalability, cost efficiency, and latency.
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API & Event Pipelines: Build highly available, reliable REST APIs and Kafka-driven asynchronous pipelines for processing high-volume content and translation tasks.
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Operational Excellence: Implement end-to-end monitoring, logging, error handling, retries, automated testing, and validation mechanisms for complex translation workflows.
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Scale & Performance: Drive performance tuning and architecture enhancements to handle increasing translation volumes seamlessly.
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Production Support: Assist with production deployments, CI/CD pipelines, system monitoring, and troubleshooting to ensure platform stability.
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Cross-Functional Collaboration: Partner with cross-functional engineering teams, product managers, and key stakeholders on technical design, system architecture, code reviews, and documentation.
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Global Expansion: Contribute to the long-term evolution of the platform to support international expansion, additional languages, and diverse content formats across major media brands (including WSJ and international outlets).