Workplace Image lingohub GmbH
Logo lingohub GmbH

Java Backend Developer

lingohub GmbH

Job

  • Level
    Experienced
  • Job Field
    Data, Back End
  • Employment Type
    Part Time/Full Time
  • Contract Type
    Permanent employment
  • Salary
    from 4.000 € Gross/Month
  • Location
    Linz
  • Working Model
    Hybrid, Onsite

    • Job Summary

    In this position, you will develop scalable backend services using Java and Spring Boot, create APIs, design robust architectures, and work on AI-based features related to translation automation.

    Job Technologies

    Your role in the team

    Welcome to the future of the translation industry: Artificial Intelligence meets practical localization

    Do you want to write code with real impact? At LingoHub, you develop the technical foundation of our smart translation solution. Additionally, you work on the further development of LINA, our AI-powered translation assistant.

    If you love Java, value clean architectures, and are eager to work with a focused team, you are exactly right with us!

    🛠️ Your scope of responsibilities

    As a Java Backend Developer at LingoHub, you will develop scalable backend services. Additionally, you will contribute to projects related to intelligent translation automation.

    Your responsibilities 📌

    • You develop high-performance and maintainable Java services (Java 25, Spring Boot 4.0) that serve as the foundation for our AI functionalities.
    • You build APIs that are enjoyed by both humans and machines – clear, fast, and well-documented.
    • You design and maintain robust code architectures and ensure seamless integration into our AWS-based infrastructure.
    • You work with large datasets and relational databases, designing efficient data models and optimizing SQL queries for performance and scalability.
    • You are involved in AI-based features such as automatic translation, semantic search with embeddings, and terminology checking.

    This text has been machine translated. Show original

    Responsibility Distribution

    • New Features

    • Maintenance, Bugfixing

    • Client Support

    • Documentation

    • Organisation

    • Meetings

    Our expectations of you

    Qualifications

    You enjoy working on complex requirements and translating them into clean, functional code. You think along, act pragmatically, and reliably get things running.

    Your Stack️ 🛠️

    • Java 25, Spring Boot 4.0 with REST interfaces
    • SQL (Postgres), Redis, JOOQ
    • Docker, AWS
    • OpenSearch or pg_vector for text and vector search

    Your Skills ✅

    • At least 3 years of experience in developing Java-based applications – production-ready and reliable.
    • Experience with modern backend architectures as well as clean, well-designed API development.
    • Interested in AI, NLP, and language processing, or at least not afraid to dive into it.
    • Structured working style, clear communication, and a strong hands-on mentality.
    • Curiosity and pragmatism, combined with the ability to think beyond the code to deliver real value for users.
    • German or English – as long as we understand each other well.

    Nice-to-have 💡

    • Experience with Retrieval-Augmented Generation (RAG) architectures or Prompt Engineering
    • Knowledge in handling AI tools and frameworks such as LangChain4j, HuggingFace, or OpenAI APIs
    • Experience with evaluating AI features in live operation, e.g., through A/B testing.

    Experience

    • At least 3 years of experience in developing Java-based applications – production-ready and reliable.
    • Experience with modern backend architectures as well as clean, well-designed API development.
    • Experience with Retrieval-Augmented Generation (RAG) architectures or Prompt Engineering is a nice-to-have.
    • Experience with evaluating AI features in live operation, e.g., through A/B testing.

    This text has been machine translated. Show original

    Benefits

    Work-Life-Integration

    More net

    Food & Drink

    Health, Fitness & Fun

    Job Locations

    Map of company locations

    • Location Linz

      Hauptplatz 23

      4020 Linz

      Austria

    Topics that you deal with on the job

    This is your employer

    lingohub GmbH

    lingohub GmbH

    Linz

    LingoHub is a translation management platform trusted by global product teams - including Spotify, Adidas, ESL Gaming, and Erste Bank - to localize web and mobile apps at scale. Founded in 2012 in Linz, Austria, LingoHub serves over 1,500 customers worldwide. Our platform streamlines the entire localization workflow, integrating tightly with Git-based development, CMS, design, and support tools to keep developers, designers, and translators in sync. We are an AI-first company combining years of localization expertise with cutting-edge language technology. Our AI assistant LINA supports teams with smart pre-translation, semantic search, and quality prediction - making multilingual content delivery faster and more accurate. LingoHub is self-funded, calm, and profitable, focused on building a product that teams love and rely on every day.

    Description

  • Company Size
    1-49 Employees
  • Founding year
    2012
  • Language
    German, English
  • Company Type
    Startup
  • Working Model
    Hybrid, Onsite
  • Industry
    Internet, IT, Telecommunication

    • Dev Reviews

    by devworkplaces.com

    Total

    (2 Reviews)
    4.8

    • Career Growth

      4.8

    • Workingconditions

      4.8

    • Culture

      5.0

    • Engineering

      4.7
    All Dev Reviews on devworkplaces.com
    Logo lingohub GmbH

    Java Backend Developer

    lingohub GmbH
    Salary
    from 4.000 € Gross/Month
    Location
    Linz
    Working Model
    Hybrid, Onsite
    Diversity
    Open for all genders
    Easy Apply
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