Senior Java & AI Translation Platform Engineer (Hybrid)

WIZELINE; Barcelona; On-site; EUR 85,000 - 125,000; Full time

Benefits offered by this job

High-Impact Environment

Commitment to Professional Development

Flexible and Collaborative Culture

Global Opportunities

Vibrant Community

Total Rewards

Job summary

Wizeline in Barcelona is seeking a Senior Software Engineer to design and scale our AI-powered translation platform. You will build high-performance microservices in Java and Spring Boot, and integrate LLM APIs to support multilingual content workflows.

Join a collaborative, fast-growing team. You’ll own REST APIs and Kafka-driven pipelines, ensure reliability with CI/CD and monitoring, and partner with product and engineering to drive global expansion.

Qualifications

• Proven backend engineer with Java and Spring Boot for scalable APIs.
• Experience integrating LLM/AI APIs and MT workflows.
• Hands-on with cloud platforms (GCP) and microservices architectures.
• Familiarity with event-driven pipelines and Kafka.
• Experience with Git, CI/CD, and automated testing in Agile teams.
• Excellent technical communication in English.

Responsibilities

• Develop and scale core translation services and backend applications using Java and Spring Boot.
• Integrate AI/LLM translation capabilities and APIs into content processing infrastructure.
• Improve translation quality, system scalability, cost efficiency, and latency.
• Build REST APIs and Kafka-driven pipelines for high-volume content tasks.
• Implement monitoring, logging, error handling, and automated testing.
• Drive performance tuning and architecture enhancements for increasing translation volumes.
• Support production deployments, CI/CD pipelines, and monitoring.
• Collaborate with cross-functional teams on technical design and documentation.
• Contribute to international expansion and multilingual content workflows.

Skills

Java

Spring Boot

GCP

Apache Kafka

LLMs

AI APIs

Machine Translation

Git

CI/CD

Automated testing

Agile methodologies

English communication

Tools

Kafka

Job description

Wizeline in Barcelona is seeking a Senior Software Engineer to design and scale our AI-powered translation platform. You will build high-performance microservices in Java and Spring Boot, and integrate LLM APIs to support multilingual content workflows.

Join a collaborative, fast-growing team. You’ll own REST APIs and Kafka-driven pipelines, ensure reliability with CI/CD and monitoring, and partner with product and engineering to drive global expansion.