At Quento Technologies S.A., the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth. At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Our high-performing, dynamic, and collaborative environment fosters professional growth at every stage. Quento Technologies S.A. seeks a highly motivated Senior AI/GenAI - ML Engineer to build and maintain scalable and efficient machine learning pipelines. Your responsibilities will entail:Build and maintain scalable and efficient machine learning pipelines for data preprocessing, model training, and evaluation;Deploy and monitor machine learning models in production environments, ensuring high performance and reliability;Integrate Large Language Models (LLMs) and Vision Language Models (VLMs) into existing applications to enhance functionality and create new AI-enhanced features;Develop and implement Retrieval Augmented Generation (RAG) systems for knowledge-intensive applications;Design and build LLM-based AI agents for automation, customer support, and other interactive applications;Experiment with and evaluate different LLM techniques, including fine-tuning, prompt engineering, and embedding generation;Develop and maintain clear and concise documentation for models, pipelines, and APIs;Participate in code reviews and contribute to best practices for AI development;Monitor and analyze model performance in production, identifying areas for improvement and optimization.research and stay up to date on the newest AI trends;Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.RequirementsUniversity degree in Computer Science, Engineering, or a relevant discipline;6+ years of experience in developing AI/GenAI solutions and deploying machine learning models in production environments;Strong understanding of traditional machine learning algorithms and techniques (e.g., linear regression, logistic regression, decision trees, support vector machines, clustering);Experience with AI services, including Azure OpenAI, Azure AI Search, and Azure Machine Learning, for building and deploying intelligent applications is highly desirable;Proficiency in programming languages such as Python, and experience with machine learning libraries like scikit-learn, TensorFlow, or PyTorch;Experience with natural language processing (NLP) and computer vision (CV) techniques;Experience with building and deploying AI agents;Experience with building and deploying API's;A proactive and self-motivated approach to work;A strong attention to detail and a commitment to quality;Ability to work effectively in a fast-paced and collaborative environment;A strong desire to learn;Excellent written and verbal communication skills;Experience and willingness to work in an international/multicultural environment;Excellent knowledge of English language (written and verbal).Additional Qualification, Knowledge and SkillsNice have a relevant certification, such as Microsoft Certified: Azure AI Engineer Associate;Microsoft Certified: Azure Data Engineer Associate;Google Cloud Professional Machine Learning Engineer;AWS Certified Machine Learning β Specialty;Certified Data Science Practitioner.BenefitsYour Life @ Qualco GroupOn top of challenging work environment, we are offering:πΈ Competitive compensation, ticket restaurant card, and annual bonus programs π» Cutting-edge IT equipment, mobile and data plan π’ Modern facilities, free coffee and beverages, indoor parking, and company bus π¨ββ Private health insurance, onsite occupational doctor, and workplace counselor ποΈ Flexible working model, hybrid benefits & home equipment benefits π€ΈββοΈ Onsite gym, wellness facilities, and ping pong room π‘ Career and talent development tools π Mentoring, coaching, personalized annual learning and development plan π± Employee referral bonus, regular wellbeing, ESG and volunteering activitiesYour race, gender identity and expression, age ethnicity or disability make no difference in Quento We want to attract, develop, promote, and retain the best people based only on their ability and behavior.Disclaimer: Quento collects and processes personal data in accordance with the EU General Data Protection Regulation (GDPR). We are bound to use the information provided within your job application for recruitment purposes only and not to share these with any third parties. For more details on the processing of your personal data during the Recruitment procedure, please be informed in the Recruitment Notice, before the submission of your application.

At Quento Technologies S.A., the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento, we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide. Our high-performing, dynamic, and collaborative environment fosters professional growth at every stage.
Quento Technologies S.A. seeks a highly motivated Senior AI/GenAI - ML Engineer to build and maintain scalable and efficient machine learning pipelines.
Your responsibilities will entail:
- Build and maintain scalable and efficient machine learning pipelines for data preprocessing, model training, and evaluation;
- Deploy and monitor machine learning models in production environments, ensuring high performance and reliability;
- Integrate Large Language Models (LLMs) and Vision Language Models (VLMs) into existing applications to enhance functionality and create new AI-enhanced features;
- Develop and implement Retrieval Augmented Generation (RAG) systems for knowledge-intensive applications;
- Design and build LLM-based AI agents for automation, customer support, and other interactive applications;
- Experiment with and evaluate different LLM techniques, including fine-tuning, prompt engineering, and embedding generation;
- Develop and maintain clear and concise documentation for models, pipelines, and APIs;
- Participate in code reviews and contribute to best practices for AI development;
- Monitor and analyze model performance in production, identifying areas for improvement and optimization.
- research and stay up to date on the newest AI trends;
- Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.
Requirements
- University degree in Computer Science, Engineering, or a relevant discipline;
- 6+ years of experience in developing AI/GenAI solutions and deploying machine learning models in production environments;
- Strong understanding of traditional machine learning algorithms and techniques (e.g., linear regression, logistic regression, decision trees, support vector machines, clustering);
- Experience with AI services, including Azure OpenAI, Azure AI Search, and Azure Machine Learning, for building and deploying intelligent applications is highly desirable;
- Proficiency in programming languages such as Python, and experience with machine learning libraries like scikit-learn, TensorFlow, or PyTorch;
- Experience with natural language processing (NLP) and computer vision (CV) techniques;
- Experience with building and deploying AI agents;
- Experience with building and deploying API's;
- A proactive and self-motivated approach to work;
- A strong attention to detail and a commitment to quality;
- Ability to work effectively in a fast-paced and collaborative environment;
- A strong desire to learn;
- Excellent written and verbal communication skills;
- Experience and willingness to work in an international/multicultural environment;
- Excellent knowledge of English language (written and verbal).
- Additional Qualification, Knowledge and Skills
- Nice have a relevant certification, such as
- Microsoft Certified: Azure AI Engineer Associate;
- Microsoft Certified: Azure Data Engineer Associate;
- Google Cloud Professional Machine Learning Engineer;
- AWS Certified Machine Learning β Specialty;
- Certified Data Science Practitioner.
Benefits
Your Life @ Qualco Group
On top of challenging work environment, we are offering:
πΈ Competitive compensation, ticket restaurant card, and annual bonus programs
π» Cutting-edge IT equipment, mobile and data plan
π’ Modern facilities, free coffee and beverages, indoor parking, and company bus
π¨ββ Private health insurance, onsite occupational doctor, and workplace counselor
ποΈ Flexible working model, hybrid benefits & home equipment benefits
π€ΈββοΈ Onsite gym, wellness facilities, and ping pong room
π‘ Career and talent development tools
π Mentoring, coaching, personalized annual learning and development plan
π± Employee referral bonus, regular wellbeing, ESG and volunteering activities
Your race, gender identity and expression, age ethnicity or disability make no difference in Quento We want to attract, develop, promote, and retain the best people based only on their ability and behavior.
Disclaimer: Quento collects and processes personal data in accordance with the EU General Data Protection Regulation (GDPR). We are bound to use the information provided within your job application for recruitment purposes only and not to share these with any third parties. For more details on the processing of your personal data during the Recruitment procedure, please be informed in the Recruitment Notice, before the submission of your application.
Qualco Group is a leading fintech organisation with over 25 years of experience delivering innovative technology solutions to banks and financial institutions. Leveraging advanced technologies, such as AI and analytics, we develop proprietary software and platforms that accelerate digital transformation and generate lasting value for businesses, society, and the broader economy.Headquartered in Athens with a global presence, we support more than 140 clients across 30 countries. Today, the Group employs over 1,000 experts and drives impact through proprietary tech, strategic partnerships, and a people-centric approach.Qualco Group includes, among others, Qualco, Quento, Qualco Intelligent Finance, Qualco Real Estate, Qualco UK, and Quant.Our valuesClient Focus β We put our clients at the centre of everything we do, making sure their needs and satisfaction guide our decisions.Quality & Excellence β We deliver high standards in our work, paying attention to detail and striving to improve every day.Ξ€eamwork & Integrity β We work together with honesty and respect, building trust through collaboration and fairness.Agility & Innovation β We adapt quickly, embrace change, and explore new ideas to find better ways of doing things.Passion for Results β We are motivated to achieve our goals and go the extra mile to deliver meaningful outcomes.Equality, inclusion, opportunity, and team spirit are at the core of our culture. We treat people with integrity and care about personal and professional growth.Why work with usCulture of respect and trust: An inclusive, diverse workplace built on respect and human rights.Equal career opportunities: Support at every career stage with clear paths for growth.Continuous learning: Ongoing training and development programs.Tailored support: Flexible work and a strong focus on work-life balance.Career Development: Continuous growth supported through mentoring, training, feedback, and recognition.Wellbeing: A balanced, caring environment with comprehensive health, lifestyle, and workplace support.
Qualco Group is a leading fintech organisation with over 25 years of experience delivering innovative technology solutions to banks and financial institutions. Leveraging advanced technologies, such as AI and analytics, we develop proprietary software and platforms that accelerate digital transformation and generate lasting value for businesses, society, and the broader economy.
Headquartered in Athens with a global presence, we support more than 140 clients across 30 countries. Today, the Group employs over 1,000 experts and drives impact through proprietary tech, strategic partnerships, and a people-centric approach.
Qualco Group includes, among others, Qualco, Quento, Qualco Intelligent Finance, Qualco Real Estate, Qualco UK, and Quant.
Our values
- Client Focus β We put our clients at the centre of everything we do, making sure their needs and satisfaction guide our decisions.
- Quality & Excellence β We deliver high standards in our work, paying attention to detail and striving to improve every day.
- Ξ€eamwork & Integrity β We work together with honesty and respect, building trust through collaboration and fairness.
- Agility & Innovation β We adapt quickly, embrace change, and explore new ideas to find better ways of doing things.
- Passion for Results β We are motivated to achieve our goals and go the extra mile to deliver meaningful outcomes.
Equality, inclusion, opportunity, and team spirit are at the core of our culture. We treat people with integrity and care about personal and professional growth.
Why work with us
- Culture of respect and trust: An inclusive, diverse workplace built on respect and human rights.
- Equal career opportunities: Support at every career stage with clear paths for growth.
- Continuous learning: Ongoing training and development programs.
- Tailored support: Flexible work and a strong focus on work-life balance.
- Career Development: Continuous growth supported through mentoring, training, feedback, and recognition.
- Wellbeing: A balanced, caring environment with comprehensive health, lifestyle, and workplace support.