ATC

About

ATC is an Information Technology Company offering innovative solutions in the Private and Public sectors since 1987, having a strong presence in the European and World markets.  Today we focus on R&D in AI/ML as well as commercial products and projects for specific market sectors.

As a full-service software development company, we apply modern design principles, along with the latest data science, machine learning, cloud, mobile and web technologies. We strive to deliver quality software solutions for top clients and global leaders in the sectors mentioned above, while at the same time being at the forefront of research and innovation.

More Info

Job Openings

The Position  

 ATC is looking for a Data Engineer to join our Engineering Unit. You will work together with experienced developers to add value to ATC ’s line of products and services. You will follow all steps of deployment, from design and implementation to testing and deployment.  

Key Responsibilities  

  • Assemble large, complex data sets that meet functional and non-functional business requirements.  
  • Build the infrastructure required for optimal extraction, transformation, and loading (ETL/ELT) of data from a wide variety of data sources.  
  • Design and implement big data processing jobs using Apache Spark.  
  • Run data cleaning, providing normalized and structured data for reporting and AI usage.  
  • Develop and maintain scalable data infrastructures with high availability, performance, and capability to integrate new technologies.  
  • Work with stakeholders to assist with data-related technical issues and support their data infrastructure needs.  

 Qualifications  

  • Bachelor’s degree in Computer Science, Engineering, Mathematics, Physics, Data Science, or related fields; a Master’s degree is considered a plus.  
  • 2+ years of experience in a data-focused role such as Data Engineer, Analytics Engineer, Data Analyst, or Data Scientist.  
  • Strong SQL skills with the ability to navigate and analyze complex data models.  
  • Working experience developing data pipelines using Python and Apache Spark (PySpark / Spark SQL).  
  • Experience working with data warehousing concepts and designing analytical data models.  
  • Excellent spoken and written communication skills in English.  
  • Agile and Scrum methodologies.  

Nice to Have  

  • Visualization Tools: Experience with BI tools such as PowerBI or Tableau for creating dashboard insights.  
  • Data Analytics Cloud Platforms:   
  • Experience with Databricks is considered a strong asset.   
  • Other cloud experience such as Microsoft Fabric is considered a plus.

The Position  

Athens Technology Center is looking for a qualified AI Engineer to join our AI team. You will be a member of a cross-functional Agile team consisting of AI/ML engineers, software developers and DevOps specialists. You will be involved in designing, deploying, maintaining and optimizing AI/ML solutions in the scope of both applied research and commercial projects.   

This includes working with Generative AI, Large Language Models (LLMs), and traditional Machine Learning techniques to develop intelligent systems for various applications.  

 Responsibilities  

  • Implement and test scalable AI/ML solutions in backend environments, ensuring integration with existing systems 
  • Stay up to date with the latest advancements in Generative AI, LLMs, and classical ML, identifying opportunities to apply them in research and commercial projects 
  • Design, develop, and optimize AI/ML systems tailored to business needs 
  • Document technical designs, implementation details, and operational workflows to support AI-driven applications 

 Requirements      

  • Degree in Computer Science, Artificial Intelligence, Information Technology, or a related field 
  • 2+ years of experience in AI, machine learning, or a related role 
  • Hands-on experience with Machine Learning, Deep Learning, and Neural Networks, including both traditional ML and Generative AI/LLMs 
  • Strong understanding of modern API design and RESTful principles for AI system integration 
  • Experience with version control systems like Git (e.g. Bitbucket) for collaborative development 
  • Excellent communication skills in English, both verbal and written, with the ability to document and present technical concepts effectively 

Additional experience in any of the following fields is a plus  

  • Experience building AI models using Keras or PyTorch 
  • Relevant experience in Natural Language Processing (NLP) 
  • Hands-on experience with Transformers and Retrieval-Augmented Generation (RAG) for AI-driven search and knowledge retrieval 
  • Specialized knowledge in cutting-edge AI technologies, including LLMs and multi-agent systems, demonstrating a commitment to staying at the forefront of advancements 
  • Prior experience working with Docker and Kubernetes for containerized AI deployments 
  • Familiarity with Cloud Platforms such as AWS, Azure, or Google Cloud Platform 
  • Understanding of Agile and Scrum methodologies in AI/ML development workflows 
  • We highly encourage candidates to share their GitHub repositories or code samples, as practical implementation is a key differentiator

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