Senior Machine Learning Engineer

Join Our Team at Kaizen GamingKaizen Gaming, the driving force behind Betano, ranks among the world's leading GameTech companies, operating across 20 markets. We are dedicated to leveraging advanced technology to deliver unparalleled experiences to our millions of customers who rely on us for their entertainment.Our diverse workforce comprises over 2,700 Kaizeners from more than 40 nationalities across three continents.We take pride in being recognized as one of the Best Workplaces in Europe and hold a Great Place to Work certification across our offices. Here, no two days are the same. Are you ready to Press Play on Your Potential?About the RoleAt Kaizen, our mission is to harness the capabilities of modern AI algorithms to enhance our products and business. The AI department, which includes product, platform, and research teams, is at the heart of this initiative. We craft AI solutions for a variety of applications, including fraud detection, personalized gaming recommendations, AI-powered co-pilots, and CRM enhancements.Our teams are structured to be self-driven, autonomous, and cross-functional. In this role, you will collaborate with Data Scientists, Machine Learning Engineers, Data Engineers, Data Analysts, Product Owners, and Agile Delivery Leads.As a Senior Machine Learning Software Engineer, your focus will be on delivering robust and scalable Machine Learning pipelines while supporting the operationalization of Machine Learning models.Key Responsibilities:Work closely with data scientists to create production-ready model training pipelines.Design scalable solutions in a distributed environment.Architect scalable inference pipelines.Implement model diagnostics, including evaluation and monitoring flows.Automate model deployments and enable REST API model endpoints.Develop scalable model serving flows.Optimize clusters for performance and scalability.Develop and maintain internal tools and libraries.Create CI/CD/CT pipelines.

Join Kaizen GamingAt Kaizen Gaming, the driving force behind Betano, we are proud to be one of the leading GameTech companies globally, with operations spanning 20 diverse markets. Our commitment lies in leveraging state-of-the-art technology to deliver unparalleled experiences for millions of customers who rely on us for their entertainment.Our vibrant team consists of over 2,700 talented individuals from more than 40 nationalities across three continents.Recognized as one of the Best Workplaces in Europe and certified as a Great Place to Work in all our offices, we guarantee that no two days will ever be the same. Are you ready to Press Play on Your Potential?About the RoleAs a Backend Engineer, you will be an integral part of an autonomous Agile team, collaborating closely with the Product Owner, Agile Delivery Lead, Automation Testers, and fellow Software Engineers to create a competitive edge for Kaizen and provide an exceptional online experience for our customers.At Kaizen, our software engineers are entrusted with a variety of projects, ranging from customer-facing websites and mobile applications to internal tools and backend services, all designed to handle high traffic and volume.Your ResponsibilitiesDevelop innovative solutions from the ground up, guiding them from concept to production.Transform requirements into efficient and sophisticated technological systems, leveraging our large-scale, highly available infrastructure.Design, build, and maintain efficient, reusable, and reliable code.Explore new technologies to identify effective solutions for everyday challenges.Deliver high-value features rapidly.Question the status quo and drive improvements for both the team and the product.Technology StackOur platforms primarily utilize C# / ASP.NET, with new services developed in .NET Core. Contemporary applications employ Vue.js for the frontend, while legacy systems utilize server-rendered (Razor) views combined with jQuery and Knockout.js. We predominantly rely on MS SQL Server for data storage, supplemented by Redis and ElasticSearch when applicable. RabbitMQ serves as our primary message broker, and we use GitLab for code versioning and continuous integration, alongside the Atlassian suite for issue tracking and documentation.

Role overview Kaizen Gaming seeks a Product Owner in Athens, Greece. This position plays a key part in shaping and refining the company’s product offerings. Collaboration with teams across the business is central, ensuring product direction aligns with overall goals and priorities. What you will do Partner with cross-functional teams to define product vision and strategy Collect and prioritize product requirements Oversee and manage the product backlog Guide delivery of features aimed at improving user experience Location This role is based in Athens, Greece.

Join Kaizen Gaming!We are proud to be one of the leading GameTech companies globally, with operations in 19 markets. Our mission is to harness the latest technology to deliver unparalleled entertainment experiences to millions of customers who rely on us.With a vibrant team of over 2,700 professionals from more than 40 nationalities across 3 continents, we celebrate diversity and innovation. As a certified Great Place to Work, we strive to make every day extraordinary. Are you ready to unlock your potential with us?Role Overview:We are seeking a proactive and motivated Product Specialist to become an integral part of our casino products team at Stoiximan and Betano. In this essential role, you will collaborate with Product Owners (POs), Senior Product Owners (SPOs), Product Managers (PMs), and cross-functional teams to enhance our product development process and achieve the company's strategic vision. This is an excellent opportunity to kickstart your career in product management at Kaizen Gaming.Key Responsibilities:Assist the Scrum team with daily tasks under the guidance of the Product Owner and Senior Product Owners.Draft detailed requirements in the form of epics and user stories.Help manage the product backlog and participate in iteration planning.Execute the product roadmap by collaborating with gaming development teams to ensure a seamless rollout of updates and features across all platforms and countries.Stay informed about the gaming industry to identify market leaders, key features, and emerging trends, particularly in RNG and Live Casino.Support POs in identifying opportunities and analyzing missing content related to games, providers, and features.Assist POs in monitoring the performance of games, providers, and features.

Welcome to Kaizen Gaming!At Kaizen Gaming, the driving force behind Betano, we stand as one of the largest GameTech companies globally, operating across 20 diverse markets. Our mission is to harness advanced technology to deliver unparalleled experiences to the millions of customers who rely on us for their entertainment.Our vibrant team comprises over 2,700 Kaizeners representing more than 40 nationalities across three continents.As a proud member of the Best Workplaces in Europe, and certified as a Great Place to Work in our offices, we assure you that every day here is extraordinary. Are you ready to Press Play on Your Potential?About the RoleWe seek a seasoned MongoDB Database Administrator Team Lead, proficient in MongoDB Atlas, Ops Manager, Percona operator, and other distributed databases. This pivotal role requires a blend of hands-on technical skills and leadership capabilities, focusing on the optimization, security, and scalability of our distributed database environments to ensure high availability, performance, and resilience.The ideal candidate will lead the distributed databases segment within the DBA team, effectively managing priorities, backlog, and promoting operational excellence across various environments.

About Kaizen GamingAt Kaizen Gaming, the driving force behind Betano, we stand as one of the leading GameTech companies globally, operating in 20 markets. Our mission is to harness the latest technology to deliver unparalleled experiences to millions of customers who rely on us for their entertainment.Our diverse team of over 2,700 professionals, representing 40+ nationalities across three continents, fosters an inclusive work environment. We are proud to be recognized among Europe's Best Workplaces and certified as a Great Place to Work in our offices. Here, every day presents new opportunities. Are you ready to unlock your potential?Role OverviewWe are looking for a passionate and seasoned Technical Project & Partner Manager to join our dynamic team. This position is perfect for a professional adept at managing relationships with external development vendors and possessing a comprehensive understanding of the technical project lifecycle within the iGaming sector.You will serve as the main point of contact for our key partners, managing technology projects from inception through completion while ensuring they are executed on schedule, within budget, and to the specified requirements. Additionally, you'll oversee relationships with external vendors, ensuring the delivery of top-notch services and products, optimizing vendor performance, and mitigating associated risks. The ideal candidate should be a strategic thinker with outstanding communication skills, a proven track record in project and vendor management, and a genuine enthusiasm for the online gaming industry.

Join the Kaizen Gaming Team!At Kaizen Gaming, we are the driving force behind Betano, recognized as one of the largest GameTech companies globally, serving 20 diverse markets. Our mission is to harness the latest technological advancements to deliver unparalleled experiences to millions of customers who choose us for their entertainment needs.Our vibrant team consists of over 2,700 professionals from more than 40 nationalities across three continents. We take pride in being recognized among the Best Workplaces in Europe and hold certifications as a Great Place to Work in our offices. Here, every day is unique and filled with potential. Are you ready to Press Play on your future?About the RoleWe are in search of a Process Automation Engineer to join our Optimization team and spearhead Continuous Improvement initiatives at Kaizen. In this role, you will be an integral part of our Process Automation team, dedicated to identifying and eliminating non-value-adding steps and challenges in operational processes. You will collaborate with fellow agile team members and work closely with the Transformation team to drive transformation initiatives and uncover automation opportunities. Additionally, you will support your fellow software engineers by enhancing their skills and cultivating a culture of open communication and collaboration.Key Responsibilities:Development: Create and maintain automation scripts while coding new processes and optimizing existing ones to enhance efficiency and streamline workflows.Monitoring: Oversee automated processes and systems to ensure smooth operations and identify potential issues or bottlenecks.Issue Resolution: Swiftly address and resolve any technical glitches or challenges that may arise during the automation process to minimize disruptions and ensure operational continuity.Your Daily Activities Will Include:Participating in daily stand-up meetings with the team to discuss progress and priorities.Prioritizing and resolving issues or challenges as they arise.Engaging in development tasks, including coding new scripts and enhancing existing ones.Communicating with stakeholders regarding functionality and testing.Collaborating with fellow engineers for code reviews and issue resolution.Aligning with the Product Owner and Manager as needed.

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 the Kaizen Gaming Team!At Kaizen Gaming, we proudly drive the success of Betano, establishing ourselves as one of the leading GameTech companies globally, with operations spanning 20 markets. Our commitment to innovative technology enables us to deliver unparalleled experiences to millions of customers who depend on us for their entertainment.Our dynamic team consists of over 2,700 professionals from 40+ nationalities, enriching our workplace culture across three continents.Recognized as one of the Best Workplaces in Europe and certified as a Great Place to Work, we provide an environment where no two days are the same. Are you ready to unlock your potential with us?About the RoleWe are seeking a driven and experienced Senior Strategic Business Analyst to play a vital role within our Business Analysis team in the Strategy Division. This position is designed for a professional who excels in independent work while also guiding junior team members.As a Senior Strategic Business Analyst, your expertise will be essential in developing the BA function and mentoring your peers. You will collaborate with key stakeholders across Kaizen to gather, document, and analyze complex business requirements for our strategic initiatives.Your role will involve cultivating strong stakeholder relationships based on trust. You will contribute significantly to our project lifecycle, with your analytical insights serving as a critical input for the PMO, influencing the creation of project charters, Business Requirement Documents (BRDs), and other strategic deliverables. The ideal candidate will possess robust analytical skills, a passion for process improvement, and a commitment to fostering a culture of continuous enhancement.

Optasia builds B2B2X financial technology for scoring, decision-making, disbursement, and collections, with a focus on expanding financial inclusion worldwide. The company’s growth relies on data-driven strategies, and the Machine Learning Engineering team is at the center of this effort. The Machine Learning Infrastructure Engineer role supports automated decision-making and risk management. This position involves working with large data sets, integrating information from multiple sources, and managing analytical pipelines built on a modern big data technology stack. What you will do Build and maintain resilient machine learning pipelines that support business-critical decisions Design and develop statistical and machine learning algorithms for credit risk management Deploy and operationalize ML solutions to improve automated risk assessment and decision processes What we are looking for Strong experience with end-to-end machine learning workflows Background in developing and deploying advanced algorithms Motivation, energy, and a results-oriented approach Ability to thrive in a collaborative team environment This position is based in Athens, Greece, and offers the chance to make a direct impact on Optasia’s data-driven initiatives.

Role Overview Avis Greece is looking for a Seasonal Parking Agent in Athens. This role focuses on preparing vehicles for delivery and inspecting them when they return from rental. Main Responsibilities Prepare vehicles and check additional equipment such as GPS units and Wi-Fi devices before handing them over to customers. Inspect the condition of vehicles and any rented equipment when customers return them. Complete reservations by finalizing contracts in the system and recording any necessary damage compensation. Monitor and maintain the parking area to ensure it stays organized and safe. Provide helpful and attentive customer service throughout the process.

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.

About Avis Greece Avis Greece is part of a global brand focused on reshaping how people move. The company develops integrated products and services that aim to make travel more flexible and convenient for customers worldwide. Why Work at Avis Greece? Supportive team culture: Colleagues work together to encourage new ideas and keep customer needs at the center of every decision. Purpose-driven work: Employees help shape the future of mobility, contributing to a more connected world. Rental Sales Agent – Athens Downtown The Athens Downtown team is looking for a Rental Sales Agent who will deliver excellent service, drive sales, and make the rental process smooth for every customer. Main Responsibilities Deliver friendly, reliable customer service for each car rental and build long-term relationships with clients. Promote relevant products and services to improve the customer experience. Monitor competitor offerings and market trends to help maintain competitive rates in line with company guidelines. Support daily station operations and suggest improvements for better results. Work with other departments to resolve customer issues and ensure high service standards. Location Athens, Attica, Greece

Role overview Kaizen Gaming seeks a Product Manager in Athens, Greece to help drive the direction of its Gaming Platform. The focus is on developing and refining products that appeal to users and encourage them to stay engaged. Building new features and improving user experiences are central to keeping the platform strong in a competitive market. What you will do Collaborate with teams from different departments to set the product vision and define clear goals. Create and update the product roadmap, shaping long-term strategy. Lead improvements that boost user engagement and enhance the overall experience. Support efforts to keep the platform at the forefront of the gaming industry.

Mercier Consultancy is hiring an Italian-Speaking Gaming Support Specialist in Athens, Greece. This role includes fully paid relocation support for those moving to Athens. Role Overview Support Italian-speaking gamers by answering questions, solving technical issues, and helping them get the most out of their gaming experience. The position combines customer service, technical troubleshooting, and collaboration with other teams. What You Will Do Assist Italian-speaking gamers through chat, email, or phone, providing clear and helpful support. Troubleshoot and resolve technical problems and account questions efficiently. Collaborate with developers and other teams to address technical issues and suggest improvements. Keep detailed records of customer interactions and solutions provided. Stay informed about platform updates, new features, and changes. Monitor system performance and flag any technical problems. Relocation Support Mercier Consultancy covers all relocation expenses to help new hires settle smoothly in Athens.

Join Avis: Where Your Career Finds Purpose and We Redefine Mobility At Avis, we are revolutionizing the way people travel, spearheading transformation in the global mobility sector. Our mission is to innovate and deliver integrated products and services that create an array of new travel possibilities, defined by exceptional convenience and flexibility.Why Choose Avis: A Collaborative Work Environment: At Avis, we are more than just a business; we are a community that cherishes its employees. We take great pride in fostering a collaborative atmosphere, focused on innovation, and prioritizing customer satisfaction in every action we take. Your Career, Your Purpose: By joining us, you'll find that Avis is the place where your career can truly thrive. We are not merely offering jobs; we are inviting exceptional talent to contribute to our vision of a more connected world. Unlock Your Potential as a Rental Sales Agent with Avis Greece Avis Greece is searching for an outstanding Rental Sales Agent to join our team at the Athens Airport Station. This role is pivotal in delivering extraordinary customer service, driving sales, and ensuring an effortless rental experience for our clients. Your Key Responsibilities: Provide exemplary customer service for every car rental, building trust and fostering long-term client relationships. Promote additional products and services to elevate the overall customer experience. Remain knowledgeable about competitor offerings and market trends to ensure our deals are competitive and aligned with company policies. Contribute actively to the operations of the station, suggesting enhancements to improve performance. Monitor and address customer complaints in collaboration with relevant departments to guarantee outstanding service.

About the Role Kaizen Gaming is hiring a Gaming Partnerships Specialist in Athens, Greece. This position focuses on developing and maintaining partnerships across the gaming industry. The role involves working with stakeholders to spot new opportunities, negotiate deals, and support growth projects. What You Will Do Build and strengthen relationships with partners in the gaming sector Identify and evaluate new partnership opportunities Negotiate agreements that support business goals Collaborate with internal teams and external partners to advance growth initiatives Location This role is based in Athens, Greece.

Optasia is a dynamic B2B2X financial technology platform that specializes in scoring, financial decision-making, disbursement, and collection. Our mission is to foster financial inclusion globally, as we are transforming the financial landscape.We are looking for passionate and energetic professionals who are results-oriented and possess a proactive mindset. Join our innovative team of like-minded individuals dedicated to delivering cutting-edge solutions in an exciting environment. At Optasia, data is central to our growth strategy, and our Data Engineering team plays a vital role in our success through data-driven insights and decision-making.As an ML & Data Ops Engineer at Optasia, you will be pivotal in ensuring the availability and performance of our workflows. You will monitor and optimize our existing data system infrastructure, prioritize issue resolution, and promote a culture of continuous improvement. Your contributions will be essential in maintaining high service standards and reinforcing our commitment to client success.Key Responsibilities:Oversee daily monitoring of ML workflows, service alerts, and all data system infrastructure, including storage, applications, databases, and resources.Act as an escalation point for critical ML and data incidents, diagnosing issues and resolving or escalating as needed.Champion continuous integration, continuous delivery, and automation practices to facilitate seamless software transitions from development to production.Manage customer inquiries efficiently to ensure prompt responses and resolutions within defined SLAs.Encourage a culture of continuous improvement by identifying enhancements in processes, tools, and technologies.Conduct health and quality checks of ML and data workflows to ensure operational excellence.Collaborate with cross-functional teams including ML/Data Engineering, Algorithmic Trading, and System & Network Administration to resolve internal and client-related issues effectively.Develop training materials and deliver sessions, maintaining comprehensive technical documentation.

Join a global leader in the education technology sector and the premier provider of professional skills assessment and certification, with a presence in over 200 countries. This is a fantastic opportunity to apply now! PeopleCert is seeking a Senior Copywriter who will be pivotal in crafting impactful copy that brings our brands to life across various communication channels and audiences. The ideal candidate will possess a strategic mindset, with the ability to convert complex information into engaging narratives that resonate with a diverse global audience of professionals and organizations. We are in search of a creative thinker who excels in storytelling through eloquent writing, while also recognizing the commercial value of their creativity and prioritizing impact and results in every project.Key Responsibilities:Develop persuasive and engaging copy for diverse external platforms, including websites, landing pages, social media, email campaigns, newsletters, both digital and print advertising, and promotional materials.Convert intricate information, particularly regarding certification products such as ITIL, PRINCE2, DEVOPS INSTITUTE, and LANGUAGECERT, into clear, audience-friendly messaging.Lead the creation of compelling communication concepts, producing original and strategic ideas that enhance engagement and drive results.Compose clear and impactful content for internal communications and employer branding, effectively communicating company culture, values, and initiatives.Work in close collaboration with design, digital, product marketing, and brand management teams to ensure cohesive storytelling and successful campaign execution.Maintain and evolve the PeopleCert brand voice and tone across all communications.Edit and refine copy authored by others to ensure quality and precision.Contribute to naming, taglines, campaign concepts, and other creative initiatives that foster brand awareness and loyalty.Encourage creativity and explore innovative ways to engage with our audiences.Ensure alignment with the company’s core values: quality, innovation, passion, integrity, clarity, and velocity.Qualifications:Bachelor’s Degree in Marketing Communications, Languages, or Arts; other relevant academic backgrounds may be considered. A Master’s degree is a plus.A minimum of 5 years of experience in English copywriting, preferably within a Digital Marketing context.Demonstrated success in campaign development, particularly in concept creation and execution.