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AI ML Research& Development Engineer

🇬🇷 Greece | 🇷🇴 Romania

Python

Docker

AWS

Marketing

Machine Learning

Design

Legal

AI ML Research& Development Engineer

from 🇬🇷 Greece | 🇷🇴 Romania

About Welo Global 

Welo Global is a leader in multilingual AI, technology, and content solutions serving over 2,000 clients in 300 languages. The company combines globally scaled multilingual infrastructure, including a network of over 500,000 linguists and domain experts, with advanced NLP, computational linguistics, and best-in-class compliance backed by seven ISO certifications. Welo Global’s five brands—Welocalize (multilingual content and localization services for global enterprises), Park IP (intellectual property and patent translation services for law firms and corporate legal teams), Welo Life Sciences (regulated language and compliance-aligned content solutions for pharmaceutical, biotech, and medical device organizations), Adapt (multilingual performance-led digital marketing agency), and Welo Data (multilingual data generation, evaluation, and human data infrastructure for AI systems)—serve distinct customer segments with purpose-built expertise, fit-for-purpose solutions, and supporting technology.weloglobal.com 


MAIN PURPOSE OF THE JOB
 
The AI/ML Engineer is responsible for the design, development, and deployment of machine learning solutions that serve our organization's business goals. This includes end-to-end ownership of projects from initial conception through production deployment, using AWS services, Docker, and modern ML/LLM tooling. The role also includes establishing and following best practices to optimize, monitor, and measure the performance of our models and algorithms against business outcomes. 

MAIN TASKS & RESPONSIBILITIES

The following is a non-exhaustive list ofresponsibilities and areas of ownership of an AI/ML  Research & Development Engineer

  • Design and develop machine learning models and systems for various aspects of the localization (translation) and business workflow processes

  • Take ownership of key projects from definition to deployment, ensuring that they meet technical requirements and maintain momentum and direction until delivery

  • Experiment with and evaluate classical ML and LLM-based approaches (including prompt/context engineering, retrieval-augmented generation, and agentic workflows) to identify effective solutions for business problems

  • Perform statistical analysis based on experimental and test results to drive measurable performance improvements

  • Package and deploy machine learning systems using appropriate techniques and technologies

    Success Indicators for a Machine Learning Engineer

     

  • Effective Model Development: Success is evident when the models developed are accurate, efficient, and align with project requirements.

  • Positive Team Collaboration: Demonstrated ability to collaborate effectively with various teams and stakeholders, contributing positively to project outcomes.

  • Continuous Learning and Improvement: A commitment to continuous learning and applying new techniques to improve existing models and processes.

  • Clear Communication: Ability to articulate findings, challenges, and insights to a range of stakeholders, ensuring understanding and appropriate action.

  • Ethical and Responsible AI Development: Adherence to ethical AI practices, ensuring models are fair, unbiased, and responsible.

REQUIREMENTS

Education

  • BSc in Computer Science, Mathematics or similar field; Master’s degree/PhD is a plus

Experience

  • Minimum 3+ years experience as an AI Machine Learning Engineer or similar role

  • Skills & Knowledge

    Core Engineering

    • Ability to write robust, production-grade code in Python

    • Strong foundation in machine learning techniques and algorithms, including supervised/unsupervised learning, deep learning, and reinforcement learning

    • Experience with NLP techniques and tools, including modern LLM-based approaches

     

  • LLM/Applied AI Tooling 

    • Experience building with LLM orchestration frameworks (e.g., LangChain, LangGraph) or lightweight abstraction layers (e.g., LiteLLM)

    • Hands-on experience with the Hugging Face ecosystem

    • Experience working with managed agent platforms/sandboxes (e.g., Claude, Gemini, OpenAI)is a plus

  • Infrastructure & Deployment 

    • Hands-on experience with AWS technologies including EC2, S3, and related deployment strategies

    • Experience with Docker; experience with GPU-based deployments is a plus
  • Leadership & Communication  

    • Strong communication and collaboration skills, with the ability to explain complex technical concepts to non-technical stakeholders

    • Experience owning projects end-to-end from conception through deployment, and mentoring junior team members
 
When applying for this role please make sure that you are legally eligible to work in the country in which this job is based (Greece or Romania).
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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by @maxrusakovic