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Data Engineer

Data Engineer

AI/GenAI - ML Engineer

Qualco Group

Athensfulltime

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Role description

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
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;
  • 4+ 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 - Specialty;
  • Certified Data Science Practitioner.

Benefits

Your Life @ Qualco Group
On top of challenging work environment, we are offering:

💸 Competitive compensation, ticket restaurant card, and annual bonus programs

💻 Cutting-edge IT equipment, mobile and data plan

🏢 Modern facilities, free coffee and beverages, indoor parking, and company bus

👨‍⚕ Private health insurance, onsite occupational doctor, and workplace counselor

🏝️ Flexible working model, hybrid benefits & home equipment benefits

🤸‍♂️ Onsite gym, wellness facilities, and ping pong room

💡 Career and talent development tools

🎓 Mentoring, coaching, personalized annual learning and development plan

🌱 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.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Data Engineer

Data Engineer

PRODYNA

Athensfulltime

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Role description

PRODYNA delivers innovative software and cloud solutions for enterprise customers, helping organizations leverage modern data platforms and analytics. As we continue to expand our Data Engineering capabilities, we are looking for a
Data Engineer
to join our growing team in Athens.

In this role, you will design, develop, and optimize modern Data Warehouse solutions, working on enterprise-scale data integration and transformation projects. You will collaborate with cross-functional teams to build reliable, scalable, and high-performing data pipelines that support business intelligence and analytics initiatives.

Key Responsibilities

  • Design, develop, and maintain enterprise Data Warehouse (DWH) solutions.
  • Develop and optimize ETL/ELT processes for loading and transforming data from multiple sources.
  • Build and maintain SQL-based data models and data pipelines.
  • Develop, troubleshoot, and optimize Microsoft SQL Server solutions.
  • Create and maintain SQL Server Integration Services (SSIS) packages.
  • Develop Python scripts for automation, data processing, and integration.
  • Monitor, optimize, and troubleshoot data workflows and database performance.
  • Collaborate with business analysts, software engineers, and stakeholders to deliver high-quality data solutions.
  • Ensure data quality, consistency, and reliability across the data platform.

Requirements
Must Have

  • Experience designing and developing Data Warehouse (DWH) solutions.
  • Solid experience with ETL / ELT processes.
  • Strong knowledge of Microsoft SQL Server.
  • Excellent SQL / T-SQL skills.
  • Experience with SQL Server Integration Services (SSIS).
  • Experience using SQL Server Management Studio (SSMS).
  • Good knowledge of Python for automation and data processing.
  • Understanding of data modeling and database optimization.
  • Strong analytical and problem-solving skills.
  • Good communication skills in English.

Nice to Have

  • Hands-on experience with Snowflake is highly preferred.
  • Experience with cloud-based data platforms.
  • Knowledge of dimensional data modeling (Star Schema / Snowflake Schema).
  • Experience with Git and CI/CD practices.
  • Familiarity with Agile/Scrum methodologies.

Benefits
Compensation & Perks

  • Salary: We will settle on the exact compensation amount based on prior experience and skills
  • Private health insurance & Life Insurance from day #1
  • Health management scheme (weekly sessions &monthly challenges)
  • 25 vacation days
  • Team events tech oriented and more
  • International network
  • Lunch in the office & Go For Eat vouchers
  • Employee referral programme/ bonus

Dedicated budget for:

  • Employee education : 800€
  • Hardware selection (MacBook or Lenovo ThinkPad) with your own mobile : 3000€

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Data Engineer

Senior Data Engineer

XM

Athensfulltime

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Role description

Senior Data Engineer

The Role:

The Data Science team at XM is seeking a skilled Senior Data Engineer with a strong background in data science. The ideal candidate should have extensive experience in designing, building, and maintaining data infrastructure and pipelines that support machine learning models and large-scale analytics. The role involves close collaboration with data scientists, data analysts, and other stakeholders to ensure data quality and accessibility, driving data-driven decision-making and implementing AI solutions across the organization.

The main responsibilities of the position include:

  • Design, develop, and maintain scalable data pipelines for data transformation and preparation.
  • Prepare datasets for data analysts and data scientists for exploratory data analysis, A/B testing, model training, and validation.
  • Ensure data quality and consistency across various sources.
  • Deploy machine learning models and AI tools to production environments.
  • Collaborate with data scientists to improve data models and support business intelligence tools.
  • Build and maintain data warehousing solutions.
  • Enforce data governance and security policies.
  • Work with cross-functional teams to understand data requirements and provide technical solutions.
  • Mentor junior data engineers and provide technical guidance.

Main requirements:

  • MSc or PhD in Data Science, Computer Science, Physics, Mathematics, or a related field.
  • 4+ years of experience with a focus on data engineering and Python software development (Pandas, NumPy, Scikit-learn)
  • Experience with AWS, Google Cloud, or Azure cloud services
  • Extensive experience with relational and non-relational databases.
  • Proven experience with machine learning.
  • Demonstrated experience in big data processing and analytics.
  • Strong analytical thinking and problem-solving abilities.
  • Effective communication skills to convey data-driven insights.
  • Fluency in English Language

Benefit from:

  • Attractive remuneration package
  • Private health insurance
  • Corporate pension fund
  • Intellectually stimulating work environment
  • Continuous professional development and international training opportunities

Type of employment: Full time

Location: Athens, Greece

Please visit our website www.xm.com/careers to submit your online application for this position.

All applications will be treated with strict confidentiality!

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Data Engineer

Software Engineer

Enerwave S.A.

Marousifulltime

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Role description

# One Group | One Energy

We are Enerwave, member of HELLENiQ ENERGY and a leader in providing outstanding and innovative energy solutions. We operate with passion, being engaged in heart and mind to what we do, and we pride ourselves on offering our employees a place where they can excel, creating value. We are offering now a set of exciting positions in our headquarters in Athens, across multiple departments and areas of expertise.

We are looking for a Software Engineer who will design, develop, maintain, and test reliable, secure, and scalable applications built on .NET Core/C# with RESTful Web APIs and a React front end. They leverage cloud-native technologies—including serverless architecture where appropriate—as well as on-premises resources, and adopt DevOps/CI/CD practices throughout the SDLC. The role consistently applies SOLID and Clean Code principles, collaborates closely with cross-functional teams, and ensures solutions align with business objectives and security best practices.

What will you do:

  • Act with professionalism, ethics and a high sense of responsibility and collegiality, at all times
  • Design, code, and test full-stack applications using .NET Core/C# (RESTful Web APIs) for back end and React JS or Blazor for front end, including the integration of external APIs, automation services, and managed AI capabilities where required, ensuring performance, security, and scalability
  • Participate in technical analysis and solution design, collaborating with cross-functional teams and external partners to translate business requirements and functional specifications into software solutions, including AI-enabled capabilities where appropriate
  • Design and implement database schemas and optimize data access primarily on SQL Server
  • Leverage cloud-native technologies (e.g., containers, orchestration, serverless patterns, and managed cloud or AI services) alongside on-premises resources to build and deploy secure, reliable, and scalable applications
  • Incorporate DevOps practices in day-to-day activities—CI/CD pipelines and automated testing—to improve operational efficiency and delivery quality
  • Apply SDLC discipline, SOLID principles, and Clean Code practices; maintain high-quality technical documentation (designs/ADRs) and perform thorough code reviews
  • Implement security best practices, including appropriate data protection and access controls when integrating external or AI-enabled services, and designs for scalability to ensure systems remain resilient as business needs evolve
  • Implement unit and integration tests and collaborate with QA/QA Automation to expand test coverage and integrate automated tests into CI/CD
  • Use Git effectively with established branching strategies (e.g., GitFlow or trunk-based) and actively participate in pull-request reviews
  • Participate as 2nd or 3rd Level support in incident or problem management activities with regard to applications developed in-house
  • Continuously learn and evaluate technologies, including emerging AI-assisted and AI-enabled development capabilities; propose improvements and develops/enhances solutions to support core business, automation, and digitalization needs, participating in proofs of concept where appropriate

What you need to be successful:

  • A BSc in Computer Science or a related field
  • 3-6 years of relevant working experience as a software developer in Microsoft .NET (full framework and/or .NET Core). Proven experience in both front-end and back-end development, working across the complete software development lifecycle
  • Ability to build scalable and responsive web applications using .NET and modern front-end frameworks, with hands-on experience in C#, LINQ, ASP.NET MVC, Web API, Entity Framework, HTML, CSS, JavaScript, and SQL Server
  • 3+ years of experience with at least one modern front-end framework such as React (preferred), Angular, or Vue; familiarity with Blazor is considered a plus
  • Experience with relational databases (such as SQL Server), including schema design, querying, query optimization και integration in enterprise applications
  • Familiarity with DevOps principles, including continuous integration, automated testing, and deployment pipelines. Familiarity with tools like Git, GitHub Actions
  • Experience with cloud-native technologies, including serverless patterns, containers such as Docker, external APIs, and managed cloud services, and working knowledge of both cloud and on-premises architectures. Exposure to the integration of AI-enabled services would be considered an advantage
  • AI-assisted and AI-enabled development: Familiarity with GitHub Copilot or equivalent tools for code generation, refactoring, test authoring, and documentation, including effective prompting and safe and compliant usage. Basic understanding of how pre-trained AI models and managed AI services can be consumed through APIs and integrated into software applications would be considered an advantage
  • Experience working in Agile/Scrum teams
  • Core: C#, .NET Core, Web API/REST/JSON, React JS, TypeScript, HTML/CSS, Entity Framework, SQL Server, cloud-native (including serverless), containers (Docker), Git, GitHub Actions, CI/CD pipelines, SOLID and Clean Code principles, SDLC discipline, code reviews, and documentation
  • AI-assisted development: GitHub Copilot (Visual Studio/VS Code), effective prompt design for code generation, refactoring, and test authoring; safe and compliant usage
  • Nice-to-have / Legacy exposure: ASP.NET MVC, Blazor, Angular, Vue, SOAP, XAML, DevExpress
  • Exposure to Azure AI services, intelligent document processing, generative AI APIs, workflow automation, or similar technologies would be considered an advantage
  • At least one of the following Certifications: Microsoft Azure Fundamentals (AZ-900), Microsoft Azure Developer Associate (AZ-204),Microsoft Azure AI Fundamentals (AI-900)
  • Strong analytical and problem-solving abilities to identify and address complex technical issues
  • Excellent teamwork and communication skills to collaborate effectively with cross-functional teams and stakeholders
  • Ability to adapt to changing technologies, including emerging AI-assisted and AI-enabled capabilities, business requirements, and project scopes, and to collaborate effectively with external specialists when additional expertise is required
  • Willingness to stay updated with emerging trends, technologies, and best practices in the software development field

Our offer to you:

  • Competitive salary
  • Bonus scheme 💰
  • Ticket restaurant card 💳
  • Transportation reimbursement ⛽
  • Private Health Insurance coverage 🩺
  • Pension Scheme
  • Home electricity and natural gas discount ⚡
  • Continuous learning & upskilling opportunities and access to our premium online training platform 📚
  • Reimbursement for your athletic activities 🥈
  • Unlimited fruits and snacks at the office 🥜

Enerwave S.A. will keep your personal information for a period of 2 years from the submission date, after which we will delete your personal data. Enerwave S.A. has the right to transfer your personal information to third parties to whom it has assigned services, which require the collection and processing of such personal data for candidate evaluation in the process of personnel selection.

For more information regarding the processing of your personal information and exercising your rights, please read the Notice to Candidate Employees.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Data Engineer

Procurement Data Engineer (SAP) | AKTOR Construction

Aktor Group

Paianiafulltime

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Role description

AKTOR Group of Companies
is a leading player in the country’s infrastructure sector and delivers high-end services from an integrated portfolio of capabilities, including Construction, Real Estate, Renewables, Equity Participations and Facility Management.

As one of Greece’s largest groups with 7.000 employees, our commitment is to build the infrastructure that empowers people and communities to thrive.

We are looking for a highly skilled
Procurement Engineer (SAP)
to join our team.

Duties And Responsibilities

  • Manage and maintain SAP Master Data, ensuring the accuracy and integrity of material and vendor records
  • Create, classify, code, and update material master records for a wide range of products and materials within SAP
  • Monitor and improve data quality by identifying duplicates, inaccuracies, missing information, and outdated records
  • Manage procurement processes within SAP, including creation and tracking of Purchase Requisitions (PRs) and Purchase Orders (POs)
  • Manage and coordinate all project certification packages, including material certificates, supplier documentation, and compliance requirements
  • Collaborate with technical and financial departments to ensure alignment of procurement processes through SAP
  • Prepare reports and perform spend analysis, cost tracking and budget monitoring
  • Enhance and optimize procurement workflows and processes within SAP

Job Qualifications And Requirements

  • Bachelor’s degree in Civil or Mechanical Engineering
  • Minimum 3 years of experience in procurement and cost control, preferably in the Construction industry
  • Proven working experience with SAP (MM/PS modules) is a prerequisite
  • Strong analytical skills with the ability to structure data and control processes
  • Excellent command of MS-Office Suite
  • Fluency in English (written and oral)
  • Excellent organizational skills and attention to detail
  • Strong communication and interpersonal skills

The Company Offers

  • A competitive compensation package
  • Private medical insurance
  • Engaging and challenging tasks within large-scale projects
  • Opportunities for continuous learning and professional growth
  • A positive and collaborative working environment
  • Committed to providing a healthy and safe workplace for all team members

We are working together, committed to creating a diverse and inclusive environment for all!

Social Impact Footprint

  • We contribute to Greece's green transition!
  • We support Greek suppliers!
  • We achieve near-total recycling. We recycled equivalent to 96.7% of Construction, Demolition, and Excavation Waste.
  • We operate responsibly!

We value your privacy. All personal data provided in your application and CV will be kept completely confidential.

Join our community and let’s build your future together!

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

78 more openings in this category and country

AI/GenAI - ML EngineerQualco Group · Greece

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