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?
We are seeking a skilled
Senior 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
Platform Development:
Develop and enhance core translation services and backend applications using Java and Spring Boot.
AI & LLM Integration:
Integrate cutting?edge AI/LLM translation capabilities and direct LLM/machine translation provider APIs into our content processing infrastructure.
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.
AI / Translation Tech:
Experience integrating
LLMs, AI APIs
, or
Machine Translation (MT)
technologies and multilingual content workflows.
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:
A High?Impact Environment
Commitment to Professional Development
Flexible and Collaborative Culture
General Opportunities
Vibrant Community
Total Rewards
*Specific benefits are determined by the employment type and location.
Find out more about our culture here.
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📌 Java & Llm/Ai Software Engineer - Barcelona (Hybrid) (España)
🏢 Wizeline
📍 España