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We are looking for someone with strong data handling skills and a solid foundation in NLP or Generative AI techniques. This person will work with large volumes of both structured (e.g. databases, logs) and unstructured data (e.g. free text, user queries) and help improve the chatbot’s performance, reasoning capabilities, and response quality.Key Responsibilities<ul><li>Work with both structured and unstructured datasets to support AI and chatbot development.</li><li>Design and implement NLP pipelines and data preprocessing routines.</li><li>Collaborate with product teams to understand conversational goals and fine-tune response logic.</li><li>Explore and integrate Generative AI models (e.g. LLMs) for enhanced chatbot behavior.</li><li>Continuously evaluate and optimize chatbot responses based on real user input and logs.</li></ul>Requirements<ul><li>BSc or MSc in Computer Science, Artificial Intelligence, Data Science, or related field.</li><li>2+ years of experience in AI/NLP/ML engineering roles.</li><li>Solid understanding of working with text data (tokenization, embeddings, sentiment, intent).</li><li>Proficient in Python and popular AI/ML frameworks (e.g. Hugging Face, spaCy, LangChain, PyTorch, or TensorFlow).</li><li>Experience with data extraction, transformation, and modeling from both SQL and unstructured sources.</li></ul>&nbsp;Nice to Have<ul><li>Hands-on experience with LLMs (OpenAI, Cohere, Mistral, etc.) or fine-tuning/customization of foundation models.</li><li>Familiarity with vector databases, RAG (retrieval-augmented generation), or prompt engineering.</li><li>Experience in chatbot frameworks (e.g. Rasa, Dialogflow) or custom conversational agent</li></ul>Let’s talk about us:<ul><li>Hybrid working model.</li><li>A competitive salary.</li><li>Signing Bonus.</li><li>Brand new equipment.</li><li>Exciting &amp; friendly work environment.</li><li>Career &amp; competencies’ development.</li><li>Continuous learning &amp; development experience based on infinity model through Code.Hub’s Code.Learn.</li><li>L&amp;D plan for your career improvement.</li><li>A truly open, inclusive, and competitive-free environment to grow your skills and have fun!</li><li>Internal competitions &amp; rewards.</li></ul>Let’s talk about Code.Hub-ers:<ul><li>You are eligible to free LinkedIn trainings.</li><li>You are eligible to have free pass to all training Code.Learn activities after 6 months from your induction.</li><li>Training &amp; Tech Mentor for your induction.</li><li>Unlimited access to LinkedIn Learning platform (1st semester).</li><li>Sponsoring of a Bachelor and/or Master’s Degree from Athens Tech College.</li><li>Private Health Insurance.</li><li>Performance planning each six months and each two years planning of promotion.</li><li>Free Lunch/Snack every day &amp; Cocktail Fridays @ our offices.</li><li>Referral Bonus.</li></ul>

Gen AI

Currently, we are looking for a Full Stack Software Engineer to join their team in the banking sector. More specifically you will be involved in all development activities that range from coding to deployment, back-end to front-end, within a dedicated team of developers of modern enterprise applications.Key Responsibilities<ul><li>Participate in the full software development lifecycle, from design to deployment, across back-end and front-end components.</li><li>Develop, maintain, and optimize applications built on .NET 8 / C#, deployed on Azure Cloud.</li><li>Contribute to the transformation of legacy systems (.NET/WCF, SOAP, REST APIs) into modern microservices architectures.</li><li>Implement and maintain secure, scalable, and high-performance solutions with Kubernetes, Kafka, Redis, and Microsoft Firewall integrations.</li><li>Deliver high-quality front-end solutions with Angular, Typescript, and modern UI best practices.</li><li>Redesign front-end components and integrate with multiple platforms.</li><li>Work on database optimization and schema design, primarily MS SQL, but also Oracle SQL, Cosmos DB, and Redis.</li><li>Ensure performance, scalability, and indexing best practices are applied in database implementations.</li><li>Collaborate closely with cross-functional teams in an Agile environment.</li></ul>Qualifications<ul><li>Proven expertise with C#, .NET Core 8, REST APIs.</li><li>Hands-on experience with Angular</li><li>Solid understanding of cloud technologies (Azure) and containerization (Kubernetes)</li><li>Experience with Kafka and Redis</li><li>Strong background in databases (MS SQL as primary, Oracle SQL, Cosmos DB).</li><li>Understanding of database indexing, schema design, and performance optimization.</li><li>Familiarity with microservices architecture and migration projects.</li><li>Strong problem-solving mindset, ability to handle both legacy systems and latest technologies.</li><li>Excellent communication and teamwork skills.</li></ul>Let’s talk about us:<ul><li>Hybrid working model</li><li>A competitive salary</li><li>Signing Bonus</li><li>Brand new equipment</li><li>Exciting &amp; friendly work environment</li><li>Career &amp; competencies’ development</li><li>Continuous learning &amp; development experience based on infinity model through Code.Hub’s Code.Learn</li><li>L&amp;D plan for your career improvement</li><li>A truly open, inclusive, and competitive-free environment to grow your skills and have fun!</li><li>Internal competitions &amp; rewards.</li></ul>Let’s talk about Code.Hub-ers:<ul><li>You are eligible to free LinkedIn trainings</li><li>You are eligible to have free pass to all training Code.Learn activities after 6 months from your induction</li><li>Training &amp; Tech Mentor for your induction.</li><li>Unlimited access to LinkedIn Learning platform (1st semester).</li><li>Sponsoring of a Bachelor and/or Master’s Degree from Athens Tech College.</li><li>Private Health Insurance.</li><li>Performance planning each six months and each two years planning of promotion.</li><li>Free Lunch/Snack every day &amp; Cocktail Fridays @ our offices.</li><li>Referral Bonus.</li></ul>

Full Stack Developer (All Levels)

Our client is a leading European IT solutions provider with a strong local presence and global structure. They deliver end-to-end tech solutions across diverse industries and are now growing their operations in Greece. To strengthen their Networking &amp; Security team, they are looking for a skilled Network Project Engineer to join their international environment and contribute to the delivery of complex and innovative network solutions.If you’re passionate about networking, security, and cutting-edge technologies — this is your next challenge.<h2>Your Responsibilities</h2><ul><li>Analyze complex questions and incidents from clients and provide solutions.</li><li>Set up new customer environments across different technologies.</li><li>Maintain and support network components (routers, switches, firewalls, load balancers, proxies, wireless, etc.).</li><li>Interact with client environments and occasionally visit customer sites.</li><li>Investigate and resolve network issues, ensuring minimal downtime and impact.</li><li>Create and maintain accurate documentation, procedures, and instructions.</li><li>Collaborate with the team to optimize and update monitoring tools.</li><li>Participate in on-call rotation (approx. every 8 weeks) and occasional after-hours project work.</li></ul><h2>Your Profile</h2><ul><li>Experience in the Networking &amp; Security field (at least 3 years in a similar Network Project Engineer role, or 5 years in Network Operations).</li><li>Bachelor’s degree in IT or related field.</li><li>CCNA certification (CCNP or equivalent advanced knowledge strongly preferred).</li><li>Strong knowledge of switching and routing protocols (TCP/IP, OSPF, BGP, VRF, MPLS).</li><li>Proven experience with firewalling (Checkpoint, Cisco ASA), VPNs, proxies (Bluecoat), load balancing (F5), wireless solutions (Aruba), SSLVPN (F5), and authentication systems (VASCO/RSA).</li><li>Proficiency in network monitoring tools (Nagios, SolarWinds, PRTG).</li><li>Hands-on experience with cloud platforms (AWS, Azure, Google Cloud) and virtualization (VMware, Hyper-V).</li><li>Strong track record in end-to-end project delivery: planning, design, implementation, and support.</li><li>Excellent communication and teamwork skills in an international environment.</li></ul><h2>What They Offer</h2><ul><li>A dynamic, multicultural team of 17 professionals across Europe.</li><li>Competitive salary and benefits package.</li><li>Flexible working schedule with hybrid possibilities.</li><li>Annual training and certifications with leading vendors (Fortinet, Cisco, Palo Alto, F5, etc.).</li><li>Continuous feedback, career development plans, and personal growth opportunities.</li><li>A collaborative and fun work culture with open-door policy, team-building events, corporate games, and more.</li></ul>

Network & Security Project Engineer

Our client is seeking a Senior Android Engineer / Team Lead to join their growing team in Greece. The ideal candidate will be a hands-on developer with strong experience in Kotlin, Java, and Android Automotive OS, capable of contributing to both software development and architecture, while mentoring and leading a small team.<h2>Key Responsibilities</h2><ul><li>Lead and mentor a small Android development team while remaining fully hands-on.</li></ul><ul><li>Design, develop, and maintain applications within the Android Automotive OS ecosystem. Contribute to software architecture and ensure integration with in-vehicle subsystems.</li></ul><ul><li>Collaborate with cloud and embedded teams across Germany and Romania</li><li>Ensure high-quality delivery through testing, code reviews, and performance optimization.</li></ul><h2>Tech Stack</h2>Backend: Java, Kotlin Frontend: Android Automotive OS, custom infotainment systems, UI integration Cloud / DevOps: Exposure to cloud systems, CI/CD environments Database: Embedded data handling Other Tools: Spark OS, proprietary App Store, navigation and connectivity modules<h2>Must-Have Skills</h2><ul><li>Strong experience with Kotlin and Java for Android development</li></ul><ul><li>Deep understanding of Android Automotive OS and infotainment systems</li></ul><ul><li>Proven experience in software architecture and system integration Excellent communication and leadership abilities</li></ul><ul><li>Hands-on, proactive approach in cross-functional international teams</li></ul><h2>Nice-to-Have Skills</h2><ul><li>Knowledge of C++ for embedded components</li></ul><ul><li>Familiarity with cloud connectivity and navigation features</li></ul><ul><li>Experience working with Agile and continuous delivery environments</li></ul><h2>Why Join Them</h2><ul><li>International projects and collaboration with teams in Germany and Romania</li></ul><ul><li>Work on cutting-edge automotive infotainment systems (e.g., Renault vehicles) Private health insurance, meal tickets (€120), training opportunities, and full equipment (laptop &amp; mobile)</li></ul><ul><li>A dynamic environment that promotes technical excellence and career growth</li></ul>

Senior Android Engineer / Team Lead NEW

As a Senior Java Developer, you will be part of a dynamic team of 10 professionals, contributing to the design, development, enhancement, and maintenance of advanced FinTech solutions. The role combines strong technical expertise with problem-solving ability and offers exposure to large-scale, international projects.You will actively collaborate with business analysts, architects, and fellow engineers, taking ownership of delivering robust, scalable, and high-quality software components.Responsibilities<ul><li>Design, develop, and maintain high-performance Java applications and modules for global FinTech projects.</li><li>Participate in business analysis and transform complex requirements into functional use cases and user stories.</li><li>Collaborate closely with the development team, architects, and subcontractors, ensuring adherence to coding standards and best practices.</li><li>Implement and optimize database queries, ensuring high availability and performance.</li><li>Conduct thorough testing, debugging, and troubleshooting to ensure flawless software operation.</li><li>Perform code reviews, unit testing, and optimization for quality assurance.</li><li>Contribute to continuous improvement by researching emerging technologies and frameworks.</li></ul>Requirements<ul><li>BSc/MSc in Computer Science, Software Engineering, or a related field.</li><li>5+ years of proven professional experience in Java development.</li><li>Proven professional development experience using JAVA/JEE, Quarkus, JPA, Eclipse, SVN, Maven technologies.</li><li>Knowledge of Front-End technologies (React, HTML/5, Javascript, CSS/Less, JSP, JQuery).</li><li>Web Services Development (REST, SOAP).</li><li>Solid understanding of SQL and experience with relational databases (PostgreSQL, MySQL, MS SQL Server).</li><li>Familiarity with build tools (Maven, Gradle) and version control systems (Git).</li><li>Experience working in Agile/Scrum teams.</li><li>Strong problem-solving, analytical, and communication skills.</li><li>Ability to work effectively in a collaborative, multinational environment.</li></ul>Nice to Have<ul><li>Experience in the Banking/FinTech domain.</li><li>Exposure to cloud technologies and modern deployment pipelines.</li></ul>What They Offer<ul><li>Competitive and performance-based remuneration.</li><li>Meal vouchers.</li><li>Private Medical &amp; Life Insurance Plan.</li><li>Flexible working model (hybrid/on-site).</li><li>Training and development opportunities in the FinTech sector.</li><li>New experiences within a multinational environment and global teams.</li><li>Team-spirit environment with passion for technology.</li><li>Employee referral bonus.</li><li>A workplace of diversity &amp; inclusion.</li></ul>If you are a passionate Senior Java Developer eager to work on global FinTech projects and contribute to cutting-edge solutions, we would love to hear from you!

Senior Java Developer

As an&nbsp;AI Engineer, you will be a key member of the AI &amp; Innovation team, working closely with other engineers and the Head of AI. You will be responsible for&nbsp;designing, developing, and deploying AI models and pipelines, with a strong focus on&nbsp;Large Language Models (LLMs) and Generative AI. This is a hands-on role, ideal for someone passionate about applying state-of-the-art AI technologies to real-world enterprise problems in the financial services domain.Key Responsibilities:<ul><li>Design and implement&nbsp;end-to-end ML/LLM pipelines&nbsp;(data preprocessing, embeddings, model integration, deployment).</li><li>Develop and optimize&nbsp;RAG (Retrieval-Augmented Generation) pipelines&nbsp;using vector databases and embeddings.</li><li>Work on&nbsp;document intelligence projects, including parsing, classification, and information extraction from unstructured text.</li><li>Contribute to&nbsp;text-to-SQL and text-to-API solutions, enabling natural language queries over structured data and APIs.</li><li>Collaborate with the team to build&nbsp;speech-to-text models&nbsp;(with a focus on Greek language datasets).</li><li>Integrate models into enterprise applications using&nbsp;APIs, Docker, and cloud environments.</li><li>Evaluate, monitor, and improve the performance of AI systems in production.</li><li>Stay up to date with the latest trends in Generative AI, NLP, and ML research.</li></ul>Requirements:<ul><li>Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, Machine Learning, or related field.</li><li>3–5 years of experience&nbsp;in Machine Learning, Data Science, or AI Engineering, with at least&nbsp;1–2 years hands-on experience with LLMs/Generative AI.</li><li>Strong programming skills in&nbsp;Python&nbsp;and familiarity with&nbsp;ML frameworks&nbsp;(PyTorch, TensorFlow, HuggingFace Transformers).</li><li>Experience with&nbsp;LLM APIs&nbsp;(OpenAI, Anthropic, Azure OpenAI, HuggingFace).</li><li>Hands-on experience with&nbsp;RAG pipelines,&nbsp;vector databases&nbsp;(e.g. FAISS, Pinecone, Chroma), and&nbsp;LangChain.</li><li>Knowledge of&nbsp;prompt engineering, fine-tuning, and model evaluation.</li><li>Experience deploying ML models into production using&nbsp;APIs, Docker, cloud platforms (Azure, AWS, or GCP).</li><li>Familiarity with&nbsp;SQL&nbsp;and structured data processing.</li><li>Strong problem-solving skills and ability to adapt AI solutions to new business domains (finance/banking experience is a plus).</li></ul>Nice-to-Have:<ul><li>Experience with&nbsp;speech-to-text systems&nbsp;or multilingual NLP.</li><li>Previous exposure to&nbsp;financial services/banking applications.</li><li>Familiarity with&nbsp;MLOps tools&nbsp;(monitoring, CI/CD for ML, LangSmith, LangFuse).</li></ul>What They Offer:<ul><li>Hybrid working model.</li><li>Opportunity to work on&nbsp;cutting-edge AI projects with real-world impact in the financial services industry.</li><li>Exposure to international clients and enterprise-grade solutions.</li><li>A collaborative, innovation-driven environment with growth opportunities.</li></ul>

Senior AI Engineer

We’re looking for a Senior Software Engineer with strong systems integration experience to join our Consulting &amp; Engineering team as an AI Consultant/Solution Architect. You’ll be responsible for driving the technical vision and execution of AI-augmented projects—not necessarily by building models yourself, but by identifying opportunities where AI can create value and architecting how such initiatives are integrated into our systems and platforms.This is a hybrid role blending product ownership, technical design &amp; implementation, and solution delivery. AI/ML expertise is a nice-to-have, but architectural design principles, integration knowledge, and hands-on engineering experience are essential.Key Responsibilities<ul><li>Analyze internal platforms, systems and delivery operations to identify opportunities for AI-driven enhancements or automation.</li><li>Evaluate feasibility, ROI, and business impact of AI use cases—then turn them into actionable technical initiatives.</li><li>Lead the technical design and system integration efforts across multiple platforms, data pipelines, APIs, and legacy systems.</li><li>Contribute to clear and technically sound specifications for Engineering teams to execute on.</li><li>Act as the technical owner across the AI solution lifecycle—from ideation to integration and launch.</li><li>Partner with internal engineers, consultants and business stakeholders to bring AI initiatives to life.</li><li>Advocate for scalable, well-documented design and development practices.</li></ul>What You Bring<ul><li>6+ years of software engineering experience, ideally in mid-to-large scale platforms with multiple system touchpoints.</li><li>Strong background in system architecture, integration patterns, API design, and platform engineering.</li><li>Proven experience translating business needs into well-scoped, technically sound solutions.</li><li>Experience acting as a bridge between business, technical, and delivery teams.</li><li>Solid understanding of software design principles, including scalability, modularity, and extensibility</li><li>Strong communication and documentation skills in both technical and non-technical settings.</li><li>Curiosity and openness to learn about AI/ML technologies and their real-world applications.</li></ul>

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gen ai

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full stack developer (all levels)

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senior android engineer / team lead new

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senior java developer

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senior ai engineer

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ai consultant/solution architect

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