Senior Security Engineer at Kiefer Tech | Athens

Join Kiefer Tech, the innovative technology wing of Kiefer, where we harness over 12 years of engineering expertise in the Green Energy sector to craft state-of-the-art AI, robotics, and enterprise solutions across Greece and the EU. Our commitment to building sovereign AI infrastructure ensures that data remains within EU borders, adhering to privacy standards while delivering substantial business outcomes. Driven by our core values of innovation, quality, and fostering long-term client relationships, we are pioneers in creating enterprise-grade AI infrastructure, including the first true Greek Large Language Models and intelligent automation solutions that empower organizations to excel. Through our strategic partnership with NVIDIA, we merge sustainable infrastructure know-how with leading-edge AI technology, cultivating an ecosystem that encourages innovation, bolsters Greece's technological sovereignty, and drives significant impact across various industries. Become a part of our mission to shape the AI-driven world of tomorrow.About the Role:We are on the lookout for a Senior Product Designer to enhance our design processes across multiple product streams and scale design output within our AI product ecosystem.Your Responsibilities:Craft exceptional UX/UI designs for our AI-powered product offeringsCollaborate closely with Product Managers and Engineering teams to ensure timely feature deliveryProduce clear, implementation-ready design assetsEnhance usability and consistency across our product suiteContribute to the development of design patterns and reusable componentsFacilitate quicker product iteration cyclesYour Qualifications:Minimum of 4 years of experience in Product Design / UX/UIStrong UX design thinking coupled with structured problem-solving skillsProficient in Figma or similar design toolsAbility to manage multiple priorities effectivelyExperience in collaborating with engineering teamsPractical mindset focused on delivery

Join Kiefer Tech, a pioneering technology company that leverages over 12 years of engineering expertise in the Green Energy sector to drive innovation in AI, robotics, and enterprise solutions across Greece and the EU. We are dedicated to creating sovereign AI infrastructures that prioritize data privacy and deliver significant business outcomes. Our commitment to innovation, quality, and enduring partnerships empowers us to develop industry-leading AI infrastructure, including Greece's first Large Language Models and intelligent automation solutions.As an IT Manager, you will play a vital role in our rapidly expanding AI product environment. This is not merely a support role; you will be a builder, establishing and managing internal IT frameworks that enhance productivity and scalability. Your focus will be on creating automated systems that facilitate company growth and ensuring seamless integration with our product ecosystem.

Join Kiefer Tech, the innovative technology division of Kiefer, as we harness over a decade of engineering excellence from the Green Energy sector to craft advanced AI, robotics, and enterprise solutions throughout Greece and the EU. Our commitment to developing sovereign AI infrastructure ensures data remains within EU borders, prioritizing privacy while generating substantial business value. With a focus on our core values of innovation, quality, and fostering enduring client relationships, we are proud to create enterprise-level AI infrastructures, the first Greek Large Language Models, and intelligent automation solutions that empower organizations to succeed.We are seeking a dedicated Senior DevOps Engineer to join our team as the first infrastructure hire for the Sophea platform. In this role, you will play a pivotal part in standardizing deployment pipelines, establishing comprehensive observability, and expanding infrastructure-as-code practices across our services. Your mission is to enhance the consistency, reliability, and scalability of our enterprise production environment.Our Technology Stack: Our environment features over 10 Python (FastAPI) and TypeScript microservices deployed on AWS (EKS, App Runner, ECR), complemented by PostgreSQL, Redis, OpenSearch, Kafka, and S3.

Kiefer Tech is the technology division of Kiefer, drawing on over 12 years of engineering experience in the Green Energy field. The team designs and delivers AI, robotics, and enterprise solutions for clients throughout Greece and the European Union. Project work includes building sovereign AI infrastructure with a focus on data privacy, deploying enterprise automation, and developing Greece’s first production-ready Large Language Models. Kiefer Tech emphasizes technical quality, innovation, and long-term relationships with clients. The company has a strategic partnership with NVIDIA, which brings together sustainable infrastructure and advanced AI systems. This collaboration aims to support Greece’s technological independence and deliver real-world benefits across multiple industries.

Join our dynamic team at Kiefer Tech, the technological arm of Kiefer, renowned for over 12 years of pioneering work in the Green Energy sector. We are at the forefront of developing innovative AI, robotics, and enterprise solutions across Greece and the EU. Our commitment to crafting sovereign AI infrastructure ensures that data remains within EU borders, prioritizing privacy while delivering measurable business outcomes. Guided by our core principles of innovation, quality, and long-term partnerships, we create enterprise-grade AI frameworks, including Greece’s first authentic Large Language Models and intelligent automation solutions that empower organizations to succeed. Our strategic alliance with NVIDIA enhances our sustainable infrastructure expertise with world-class AI technology, fostering an ecosystem of innovation that bolsters Greece’s technological sovereignty and generates significant impact across various industries. Become a part of our mission to build the AI-powered world of tomorrow.We are on the lookout for a Senior QA Engineer to help establish robust testing methodologies and ensure product reliability in preparation for our enterprise launch.

Join Kiefer Tech, a pioneering technology firm in the Green Energy sector with over 12 years of engineering excellence. We specialize in developing advanced AI, robotics, and enterprise solutions, ensuring data sovereignty within the EU. Our commitment to privacy and impactful business results drives our mission to create cutting-edge AI infrastructure, including the first true Greek Large Language Models and intelligent automation solutions. Collaborating with NVIDIA, we aim to enhance Greece’s technological sovereignty and innovation landscape. Be part of our journey to shape the AI-powered future.Your Role:As a Senior Machine Learning Engineer, you will be instrumental in designing, optimizing, and scaling our AI systems that power the Sophea and Kiefer multi-product platform. This position requires a blend of hands-on ML engineering expertise and collaborative systems thinking. You will focus on production-grade ASR pipelines, enhancing Greek-language LLM performance, and developing cost-effective inference solutions while establishing technical benchmarks and elevating our ML practices organization-wide.Your contributions will significantly enhance product performance, customer satisfaction, and our capacity to deploy AI solutions across various public and enterprise sectors in Greece and beyond.Key Responsibilities:Develop and scale production-grade ASR and LLM pipelines, optimizing throughput, latency, and reliability while ensuring compliance with data sovereignty requirements.Enhance model performance through dataset-centric optimizations, broadening Greek-language capabilities and domain-specific expertise.Architect and implement scalable multi-agent AI systems to automate complex enterprise document analyses and decision-making processes.Lead cost and performance optimization efforts for model inference, utilizing techniques like quantization, caching, and intelligent routing to lower costs.Establish and maintain ML engineering standards, including evaluation frameworks, CI/CD practices, testing protocols, and mentorship initiatives within the ML team.

Join Kiefer Tech as a People Operations Manager in Athens, where you will play a pivotal role in shaping our team culture and enhancing our people operations. This dynamic position merges hands-on responsibilities with strategic process ownership, collaborating closely with leadership to streamline contracts, onboarding, payroll coordination, and employee experiences.In this foundational role, you will take charge of structuring and executing people operations locally. While payroll, accounting, and legal compliance are managed with external partners, your focus will be on fostering effective communication, operational excellence, and a positive employee experience.Your Responsibilities:Design and implement core people processes, ensuring their effective adoption through proactive communication and structured execution.Manage employment contracts and HR documentation in accordance with Greek labor legislation.Coordinate payroll processes with external accountants and payroll providers.Lead employee onboarding and offboarding processes, guaranteeing a seamless experience.Support performance tracking and people processes, including goal setting and feedback cycles.Organize internal team events and initiatives to enhance team engagement.Maintain HR records, ensuring compliance with local labor regulations.

Join the distinguished luxury hotel, Conrad Athens The Ilisian, situated in the heart of Athens' cultural and historical hub. This prestigious establishment represents a new era in Athenian hospitality, promising guests an unmatched experience amidst the vibrant city's offerings.As a Security Officer, you will play a crucial role in our team, ensuring the safety and security of our guests, staff, and hotel property. Your dedication to vigilant monitoring, swift incident response, and collaboration with internal teams and local authorities will help foster a safe and welcoming atmosphere that embodies the exceptional standards of Conrad Athens The Ilisian.Key ResponsibilitiesPerform regular patrols of the hotel premises, including public areas, staff zones, and parking facilities.Oversee CCTV and security systems, responding immediately to any suspicious or hazardous situations.Act quickly to security incidents, including alarms, thefts, or accidents, ensuring accurate documentation and reporting.Assist guests and team members during emergencies, providing first aid if certified.Identify and report potential risks or violations of hotel security protocols.Enforce safety regulations while contributing to a secure environment.Professionally collaborate with police, fire, and emergency services as required.Maintain strong relationships with external authorities for coordinated response efforts.Engage in safety training sessions and keep abreast of the latest security policies and practices.Uphold a neat and professional appearance in accordance with hotel standards.

IKH Group is an internationally recognized leader in Software and Robotics Solutions, experiencing remarkable growth of over 80% in just a couple of years. As we embark on 2025, we are excited to unveil several innovative projects in digital transformation, custom software, and robotics.Blend Technologies, a pioneering arm of IKH Group, is dedicated to providing cutting-edge Technology and Innovation solutions. Our team, composed of passionate technology enthusiasts, is committed to delivering tailored services that propel the advancement of Industry 4.0, with a strong focus on Cloud, Cyber Security, and AI technologies.We are currently on the lookout for a seasoned Senior Network Security Engineer to join our dynamic Group IT Infrastructure & Security teams. In this critical role, you will significantly contribute to the architecture, design, and operation of extensive enterprise network and network security infrastructures. You will serve as a technical authority, supporting mission-critical services, spearheading automation and observability initiatives, and guiding junior engineers.Your Daily Responsibilities Include:Engaging in the design, implementation, and management of sophisticated enterprise routing and switching infrastructures across data centers, campuses, and WAN environments.Crafting, implementing, and overseeing firewall and network security platforms, ensuring secure connectivity, effective segmentation, and policy enforcement on a large scale.Defining and refining network and network security architectures, employing principles of defense-in-depth, least-privilege access, and security-by-design.Architecting, managing, and troubleshooting AAA services (RADIUS / TACACS+), facilitating secure administrative and user network access.Designing, implementing, and maintaining Network Access Control (NAC) solutions to enforce device posture assessments, user access policies, and compliance standards.Creating and implementing network automation solutions to enhance reliability, consistency, and operational efficiency (such as configuration management, provisioning, and validation).Contributing to technology roadmaps, platform selections, and continuous improvement initiatives.Collaborating closely with security operations, cloud, infrastructure, and application teams to ensure comprehensive service reliability and security alignment.Promoting standardization, documentation, and operational excellence across teams.Sharing knowledge, providing technical mentorship, and guiding junior engineers within the team.

Join us at fysiko-aerio, a premier leader in the Energy sector in Greece, where our customers are central to our mission. We are dedicated to innovating solutions that enhance customer satisfaction through our diverse range of products and services. In line with our growth strategy, we are expanding our team and are on the lookout for an experienced: IT Security EngineerKey Responsibilities:Lead security monitoring and incident response initiatives to ensure the swift detection and resolution of threats.Oversee the vulnerability management and patch governance processes to uphold system integrity.Manage cloud security operations, implementing robust controls and monitoring cloud environments effectively.Ensure the security of network and infrastructure, encompassing firewalls, IDS/IPS, and network segmentation.Administer identity and access management policies and procedures (IAM, PAM, MFA).Conduct compliance and risk assessments to meet regulatory and internal standards.Engage in security architecture and design reviews, including penetration testing.Promote security awareness and training initiatives to cultivate a strong security culture within the organization.

We are on the lookout for a highly skilled Senior Cyber Security Engineer to join our dynamic team at Ballys Sintra Lotsa.In this pivotal role, you will be responsible for:Leading the engineering, design, and implementation of sophisticated security protocols to safeguard our systems, networks, applications, and information assets.Overseeing the implementation and administration of various Cyber Security Platforms (such as EDR, WAF, PAM, email security), including their optimization and vendor management.Deploying and managing SIEM platforms, which includes the development of detection use cases, correlation rules, dashboards, and reports.Conducting threat detection, investigations, and incident responses to ensure prompt containment, root cause analysis, and lessons learned.Participating in and overseeing vulnerability management programs across infrastructure, applications, and cloud environments; defining remediation priorities and tracking closure with system owners.Coordinating and guiding penetration testing engagements, and effectively communicating findings with development teams and system owners.Mentoring and supporting colleagues while collaborating cross-functionally with IT, DevOps, and business teams.

IKH Group is a prominent global leader in Software & Robotics Solutions, experiencing remarkable growth with a team expansion of over 80% in just a few years. As we embark on 2025, we are thrilled to announce several innovative projects focused on digital transformation, bespoke software, and robotics.Blend Technologies, a new subsidiary within IKH Group, is dedicated to providing cutting-edge Technology and Innovation solutions. Our team is passionate about technology and is committed to delivering tailored services to propel the Industry 4.0 revolution, with expertise in Cloud, Cyber Security, and AI technologies.We are seeking a skilled Cyber Security Engineer who possesses robust technical abilities and substantial experience to join us on exciting new projects.

Join Our TeamAt Orfium, we are at the forefront of transforming music rights and royalties through innovative technology and data solutions. As a Senior Data Engineer on our CORE team (Centralized Orfium Revenue Engine), you will play a pivotal role in establishing the data foundations for our essential billing and reporting systems. Your expertise will ensure accuracy, scalability, reliability, and cost efficiency, which are crucial for timely invoicing, revenue recognition, and maintaining healthy cash flow for our global clientele.Your responsibilities will include designing, building, and optimizing modern data workflows leveraging technologies such as Airflow, dbt, Snowflake, and AWS. You will enhance data quality, observability, performance, and cost-effectiveness. Working in an Agile Scrum environment, you will collaborate with cross-functional teams including engineering, product, BI, and service delivery to enhance our platform and develop new capabilities that empower creators to receive payment whenever their music is played. As a senior engineer, you will lead by example, mentor team members, influence architectural decisions, engage in design reviews, and promote continuous improvement across our data pipelines and platform reliability.If you are seeking a position where your insights are valued, your ideas can thrive, and your efforts contribute to significant industry advancements while addressing real-world data challenges in a collaborative setting, this opportunity at Orfium is designed for you.

Join our dynamic team at Intralot as a Senior Cyber Security Engineer!In this pivotal role, you will be responsible for:Leading the engineering, design, and implementation of sophisticated security measures to safeguard our systems, networks, applications, and information assets.Implementing and managing Cyber Security Platforms (such as EDR, WAF, PAM, and email security), including optimization and vendor management.Deploying and administrating SIEM platforms, developing detection use cases, correlation rules, dashboards, and reports.Conducting threat detection, investigation, and incident response, ensuring prompt containment, root cause analysis, and documentation of lessons learned.Overseeing and participating in vulnerability management programs, including infrastructure, application, and cloud environments; defining remediation priorities and tracking progress with system owners.Coordinating and guiding penetration testing engagements, effectively communicating findings to development teams and system owners.Mentoring and supporting colleagues, while collaborating cross-functionally with IT, DevOps, and business teams.

Join Angelicoussis Group, a prominent leader in global ship management, as an Information Security Engineer. We are seeking a skilled and driven individual to fill this permanent role.About the RoleIn collaboration with the Information Security Manager, the Information Security Engineer will be instrumental in the continuous development, implementation, and enhancement of our Information Security Management System (ISMS) and its associated processes. The right candidate will take ownership of projects and tasks, work effectively with diverse teams, and consistently deliver high-quality outcomes.Key ResponsibilitiesContribute proactively to the planning and execution of Information Security projects.Work alongside ICT engineers to identify, analyze, and address cyber incidents.Generate Information Security reports and assist in ISMS improvement initiatives and compliance efforts.Conduct Cyber Risk Assessments, awareness training, and simulations.Collaborate within a cross-functional team to monitor key cybersecurity systems and ensure compliance with security policies.

Role Overview Intralot is seeking a Senior Software Engineer with strong Java expertise to help build and improve software for gaming and lottery systems. This role focuses on designing and developing solutions that support the company's products and services. What You Will Do Develop and maintain Java-based applications for gaming and lottery platforms. Collaborate with team members to solve technical challenges and deliver new features. Contribute to the architecture and design of scalable, reliable systems. Location This position is based in Athens, Attikí, Greece.

Established in 2018, Causaly is revolutionizing the realm of enterprise-level scientific research with our innovative AI platform. Our technology empowers researchers to efficiently discover, visualize, and interpret vital biomedical knowledge while automating essential research workflows, thus accelerating the solutions to some of the most pressing health challenges of our time.We partner with leading biopharma companies and institutions, addressing diverse use cases in Drug Discovery, Safety, and Competitive Intelligence. For more insights on how we enhance knowledge acquisition and decision-making, explore our blog posts here: Blog - CausalySupported by prestigious venture capital firms including ICONIQ, Index Ventures, Pentech, and Marathon, we are on a mission to transform research outcomes in the biomedical field.About the TeamWe are seeking skilled AI engineers to join our dynamic team, utilizing generative AI and intelligent agents to help scientists uncover novel insights from extensive biomedical literature and datasets.Delivering an accelerated research experience demands more than merely adopting the latest LLM model; it requires building trust with our users through integrating effective guardrails, biomedical curation, consistent updates, and robust deployment practices—ensuring our platform meets all the research needs of our users.We invite AI engineers who are passionate about this mission to apply AI in reshaping how biomedical professionals conduct their research and daily explorations.Your Responsibilities· Design and implement comprehensive ML/AI solutions from conception through deployment and monitoring, balancing innovative techniques with practical considerations to achieve measurable outcomes.· Employ sound software engineering practices, including modular design, testing, code reviews, CI/CD, and observability, to ensure AI systems are dependable, maintainable, and production-ready, while being adaptable to future needs.· Select the optimal approach for each challenge, evaluating traditional ML and NLP techniques, LLM-based solutions, and agentic strategies to weigh trade-offs between speed, cost, complexity, interpretability, and performance.· Collaborate closely with product, design, and engineering teams to define project scopes, establish success metrics, and iteratively enhance user-facing features powered by AI.

Bally’s Intralot is seeking a Cyber Security Engineer based in Athens, Attikí, Greece. The position centers on safeguarding company networks, systems, and sensitive information by applying rigorous security measures and hands-on technical expertise. What you will do Develop, apply, and track security protocols to defend systems, networks, and data assets. Work with cyber security tools such as Endpoint Detection and Response (EDR), Web Application Firewalls, File Integrity Monitoring (FIM), and email security solutions. Investigate and respond to alerts from security systems, analyzing potential threats and incidents. Manage and maintain Security Information and Event Management (SIEM) platforms. Conduct vulnerability assessments on both infrastructure and web applications. Take part in planning and executing penetration testing efforts. Design and roll out security controls throughout the organization. Location This role is based in Athens, Attikí, Greece.

Become a part of Intralot as a Senior Cloud Engineer!As a vital member of our Enterprise IT team, you will play an instrumental role in the management and deployment of cloud and enterprise IT solutions.Key ResponsibilitiesDesign, implement, and oversee cloud solutions utilizing Azure.Provide support for Microsoft 365 (M365) services as part of our enterprise IT operations.Work collaboratively with IT Infrastructure teams to seamlessly integrate cloud services into our enterprise applications.Continuously monitor and enhance the performance of cloud and IT infrastructure.Administer and fine-tune Jira for effective project and task management across IT teams.