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.

General 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

Global 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)
🏢 Wizeline
📍 Barcelona