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

Key Responsibilities

Platform Development:

Develop and enhance core translation services and backend applications using Java and Spring Boot. Optimization & Evaluation:

Support direct integrations with translation providers; continually evaluate and improve translation quality, system scalability, cost efficiency, and latency. API & Event Pipelines:

Build highly available, reliable REST APIs and Kafka-driven asynchronous pipelines for processing high-volume content and translation tasks. Operational Excellence:

Implement end-to-end monitoring, logging, error handling, retries, automated testing, and validation mechanisms for complex translation workflows. Scale & Performance:

Drive performance tuning and architecture enhancements to handle increasing translation volumes seamlessly. Production Support:

Assist with production deployments, CI/CD pipelines, system monitoring, and troubleshooting to ensure platform stability. Cross-Functional Collaboration:

Partner with cross-functional engineering teams, product managers,



and key stakeholders on technical design, system architecture, code reviews, and documentation. 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). Qualifications & Skills

Required:

Core Backend:

Proven expertise in

Java

and

Spring Boot

for building scalable RESTful APIs and enterprise microservices. Cloud & Infrastructure:

Hands-on experience with

Google Cloud Platform (GCP)

or other major public cloud environments. Event-Driven Architecture:

Experience with

Apache Kafka

or similar messaging systems for event-driven architectures and streaming pipelines. Software Engineering Practices:

Proficiency with Git, CI/CD pipelines, automated testing (unit, integration, e2e), code reviews, and Agile methodologies. Communication:

Excellent technical communication skills with fluency in written and spoken English. Preferred / Nice to Have:

Prior experience building or maintaining

content management platforms (CMS) , digital publishing systems, or media workflows. Experience evaluating LLM prompt engineering, fine-tuning, or MT quality estimation metrics (e.g., BLEU, COMET). What we offer:

Commitment to Professional Development Versátil and Collaborative Culture Total Rewards *Specific benefits are determined by the employment type and location.*

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📌 Senior Java Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona