Senior Backend Engineer

Join Kaizen Gaming as a Senior Backend Engineer and be part of a dynamic Agile team dedicated to crafting innovative solutions for millions of users worldwide. Collaborate with cross-functional teams to drive impactful projects, from user-facing applications to robust backend services, ensuring high performance and reliability. Your expertise will guide the …

About UsAt Agile Actors, we are a dynamic technology firm dedicated to enhancing and empowering technical teams for clients both locally in Greece and internationally. Our distinct approach combines coaching with a commitment to continuous learning and innovation, creating an environment where professionals not only contribute but also experience significant personal and career growth.Joining our team means engaging with cutting-edge solutions and diverse, energetic teams where each project marks a significant career milestone. Our talented professionals collaborate with global leaders across various industries, including prominent names like Austrian Post, Red Hat, and Swissquote.We firmly believe that the workplace should be more than just a job; it should be a space where individuals can thrive. We are proud to be recognized as a Great Place to Work 2026, reflecting our dedication to cultivating an environment where talent, passion, and growth can flourish.Our Core ValuesWe stand by our core principles:Having a purposeBeing adventurousBeing AgileRespect and EmpowerAuthenticity and TrustEvolving through our clientsCandidate ProfileWe seek technology professionals who embody purpose, curiosity, and passion. If you view challenges as opportunities and desire to make a tangible impact through your work, you will thrive here. If problem-solving excites you and collaboration inspires you, you'll find your place with us.As part of Agile Actors, you will be adventurous and agile, ready to welcome new ideas and adapt to fast-paced environments. Based in Athens, you will work alongside talented clients to deliver innovative solutions that shape the future of technology. You will evolve through projects with leading global companies, supported by an environment founded on trust, respect, and empowerment.

Join Our TeamOpenBet stands as a premier figure in the global betting and gaming entertainment sector, relied upon by over 200 partners to deliver unforgettable winning experiences to millions of players around the globe. From facilitating bets during monumental events like the FIFA World Cup and Super Bowl to innovating cutting-edge products such as BetBuilder, we are committed to enhancing the player experience through superior content, state-of-the-art technology, and advanced player protection mechanisms.With a rich legacy spanning over 25 years, our robust platform empowers the most esteemed betting brands, guaranteeing optimal performance with 100% uptime, unparalleled scalability, and rapid execution. Boasting 85 licenses and a client roster that includes 20 World Lottery Association operators, along with a dedicated team of over 1,200 professionals across 14 countries, we remain at the forefront of the industry. Join OpenBet and elevate your career while being part of a global team that is redefining the future of betting entertainment for millions.Your RoleThe Quant Development unit within our Data Science team is seeking a Senior Quant Developer responsible for the creation and maintenance of sports betting forecasting models. This role will be situated in Athens.Key Responsibilities:· Develop new player prop markets leveraging price feed and statistical data, including unique exotic betting markets that stand out in our current offerings.· Innovate and enhance sports betting models, improving pricing accuracy, scalability of code, and execution speed and memory efficiency.· Oversee the team's services, including Alerting systems for Traders.· Manage and optimize data pipelines in the cloud for efficiency and scalability.· Introduce new coding design patterns that adhere to best practices in object-oriented programming, and effectively communicate these to the team.· Collaborate with client-facing teams to discern customer needs and business requirements, and present project updates to leadership.· Work closely with product owners and software developers to transition projects from concept to integration.· Mentor junior team members and conduct regular knowledge-sharing sessions on topics such as sports betting models, API design, and cloud solutions.Your Qualifications:· A postgraduate degree in Data Science, Machine Learning, Statistics, Mathematics, or a related quantitative discipline.· A minimum of 5 years of relevant work experience, or a PhD in a quantitative field with at least 2 years of experience.· Proficient programming skills in object-oriented programming languages (C# or Python) and familiarity with databases (SQL and NoSQL).· Experience with various modeling techniques including Probability Distributions, Generalized Linear Models, Monte Carlo Simulations, Bayesian Inference, and Time-Series Analysis.· A proven interest in developing forecasting models specifically for sports.· Strong analytical and problem-solving skills, along with excellent communication abilities.

Are you enthusiastic about big data and eager to engage with advanced technologies? We invite you to explore a thrilling opportunity as a Data Engineer - Spark Developer with our dynamic and growing development teams. Whether you prefer the vibrant atmosphere of our Athens office or the flexibility of remote work, we are excited to welcome your expertise and passion.Key Responsibilities: Architect, develop, test, deploy, maintain, and enhance data pipelines; Implement coding solutions using Apache Spark on Azure Databricks; Create and design big data architectures leveraging Azure Data Factory, Service Bus, BI, Databricks, and other Azure Services. Essential Qualifications: Bachelor's degree in Computer Science or Software Engineering; Strong analytical mindset, team-oriented, dedicated to quality, and eager to learn; Comprehensive understanding of Apache Spark; Proven experience as a Data Engineer; Advanced proficiency in Python or Scala; Expertise in Spark query tuning and performance enhancement; Familiarity with cloud platforms such as Azure, AWS, or GCP; Fluent in both spoken and written English. Preferred Qualifications: Ability to understand and analyze Directed Acyclic Graph (DAG) operations; Experience in providing cost estimates for big data processing; Capability to write and review architecture documentation. Benefits:We value talent and commitment and offer a range of benefits to our team members:Competitive full-time salary;Comprehensive private health coverage under the company’s group program;Flexible working hours;Access to state-of-the-art tools;Opportunities for professional development including language courses, specialized training, and continuous learning;Career advancement opportunities with leading specialists in the industry;A dynamic work environment that promotes challenging goals, autonomy, and mentorship, supporting both personal and company growth.If you are looking for an exciting challenge, keen to work with innovative technologies, and enjoy your work, we would love to hear from you! Please submit your detailed CV in English, referencing: (DESD/02/26).Explore our other open positions by visiting our career section at www.eurodyn.com and follow us on Twitter (@EURODYN_Careers) and LinkedIn.European Dynamics (www.eurodyn.com) is a prominent European company specializing in Software, Information, and Communication Technologies, with a robust international presence.

Join CQS, a recognized leader!We are proud to announce that CQS has been ranked in the Top Employers 2025 list by WhereWeWork.com. Based on feedback from our valued team members, we achieved: 1st place in the BPO & Services sector 2nd place overall among the Top 50 Employers in GreeceBecome an integral part of a team that excels in fostering a positive working atmosphere!At CQS, we believe that continuous learning is key to both personal and professional growth. As we continue to nurture our people and culture, we are seeking a dedicated Learning & Development Specialist who will create, implement, and deliver impactful training programs that enable our teams to excel.If you are innovative, passionate about lifelong learning, and eager to create significant developmental experiences, this is your chance to join a vibrant HR team in one of Greece’s top-ranked workplaces.Your Key Responsibilities:Collaborate with managers and teams to identify training needs.Design and develop training materials, including thematic modules and e-learning content, with a focus on soft skills.Organize, facilitate, and conduct engaging training sessions.Evaluate and monitor the effectiveness of training initiatives.Analyze participant feedback to refine course content and delivery.Assess team development needs and recommend targeted initiatives.Create promotional materials to raise awareness of L&D programs.Handle all administrative tasks related to training programs and events.Support the onboarding process by training new hires on company policies, procedures, and tools.Track and report on training completion rates and employee progress using LMS platforms or manual tracking tools.Stay informed about the latest training techniques, tools, and best practices in adult learning. Essential Qualifications:Proven experience in a Learning & Development role.Strong understanding of adult learning principles and e-learning design.Exceptional communication and organizational skills.Creative mindset with the ability to inspire and engage participants.What We Offer:Attractive salary and benefits package.Career development opportunities within a rapidly growing organization.A work culture that encourages initiative and proactive action.

Join Kaizen Gaming as an HR Specialist focused on Talent Development! In this dynamic role, you'll play a pivotal part in fostering employee growth and enhancing our talent strategies. You will collaborate with various departments to design and implement training programs, assess employee performance, and facilitate a culture of continuous improvement.

Role Overview tgndata is looking for a Business Development Manager to help grow its presence in Athens and beyond. This hybrid role blends remote work with time in the office, offering flexibility while staying connected to the team. What You Will Do Drive business growth by identifying and pursuing new opportunities Expand market presence through outreach and relationship building Develop and maintain strong, long-term client partnerships Location and Work Model Based in Athens, Attica, Greece, this position follows a hybrid schedule with both remote and in-office collaboration.

gek-terna is seeking a Project Development and M&A Manager based in Athens, Attica, Greece. This position plays a central role in shaping the company’s future by driving project development and overseeing mergers and acquisitions activities. Main responsibilities Lead project development initiatives from early stages through execution. Manage and advance the company’s mergers and acquisitions strategy. Work closely with teams across the organization to identify and assess new growth opportunities. Ensure projects and M&A activities stay aligned with overall company objectives. Collaboration This role involves regular interaction with colleagues from various departments to coordinate efforts and maintain clear communication as projects progress.

Become a Key Player at Bally’s Intralot as an Oracle PL/SQL Developer!Your Role:As an Oracle PL/SQL Engineer at Bally’s Intralot, you will play a pivotal role in designing and enhancing the database architecture that supports our enterprise platforms. Collaborating with backend engineers, you will ensure seamless integration of PL/SQL logic with Java/Spring Boot services, contributing to the development of scalable, high-quality solutions utilized in global markets.Responsibilities:Design, develop, and maintain PL/SQL packages, procedures, functions, triggers, and views.Work closely with Java/Spring Boot teams to integrate PL/SQL logic into backend services.Optimize SQL queries and database structures for enhanced performance and scalability.Support data migration activities, ETL processes, and facilitate integration between diverse systems.Participate in database design, schema reviews, and code quality assessments.Diagnose and resolve performance issues, production incidents, and database bottlenecks.Keep technical documentation clear and up-to-date.Contribute to the refinement of development standards, code quality, and automation practices.

At Skroutz, our mission is to deliver an extraordinary shopping experience to our customers. Since our inception in 2005, we have upheld the belief that satisfied customers lead to satisfied merchants, driving us to anticipate and meet their needs with an unparalleled, seamless experience.Our vision is to become the Everyday App—the primary destination for millions seeking to fulfill their online shopping needs. Whether it’s purchasing a new smartphone, stocking up on pantry essentials, finding the ideal outfit for an event, or searching for that rare gaming console, Skroutz is your trusted partner for effortless shopping.Our ambitions stretch beyond Greece, as we aim to become one of Europe’s fastest-growing marketplaces, with exciting expansions currently underway in Cyprus and the Balkans. Our unwavering commitment to customer satisfaction guides every decision we make.We are looking for passionate individuals who share our love for e-commerce and technology. If you are motivated to create remarkable shopping experiences and help sellers grow their businesses globally, we want you on our team.Join Skroutz and be part of a transformative journey that is redefining online shopping. Together, let’s turn everyday moments into extraordinary experiences.Are you ready to take on this challenge?#AimToAmazeOur Engineering ValuesMaster Your Craft. Continuously develop your skills and take pride in your work.Embrace Feedback. Deliver prototypes early and use feedback to refine your work.Collaborate. Support your teammates, listen actively, and take the initiative.Avoid Over-Engineering. Simplify your solutions without compromising quality.Enjoy Your Work. Celebrate accomplishments and foster a positive work environment.Technologies We UtilizeOur tech stack includes Ruby for the backend (Ruby on Rails framework), with JavaScript (ES6), React/Redux for the frontend, and a MariaDB cluster for storage. We extensively use Elasticsearch, Kafka, MongoDB, Redis, and Memcached. Jenkins supports our CI processes, while tools like Sentry, NewRelic, and Grafana assist with monitoring. We prioritize selecting the best tools available to meet our needs. Read more about our projects on our Engineering Blog.

At Skroutz, our mission is straightforward: to astonish. Since our inception in 2005, we have maintained that satisfied customers lead to satisfied merchants. Our role is to understand and anticipate their needs, providing an unrivaled shopping experience without doubt.Our vision is to become the Everyday App, the premier destination where millions can meet their online shopping needs. Whether you are in search of a new smartphone, restocking pantry essentials, finding the ideal outfit for an occasion, or on the hunt for that elusive gaming console, Skroutz is your reliable ally for smooth shopping experiences.Our aspirations stretch beyond Greece. We are on the path to becoming one of Europe's fastest-growing marketplaces, with exciting expansions underway in Cyprus and the Balkans. Customer satisfaction is our guiding principle, driving every choice we make.To realize our vision, we are looking for passionate individuals who share our enthusiasm for e-commerce and technology. If you are motivated by the desire to create extraordinary shopping experiences for users and assist sellers worldwide in expanding their businesses, we would love to have you on our team.Join us at Skroutz and embark on a journey that is transforming the online shopping landscape. Together, let’s turn everyday moments into exceptional experiences.Are you ready to take on this challenge?#AimToAmazeOur Engineering ValuesMaster your technology. Hone your craft, and be proud of your work.Deliver early and iterate. Provide prototypes and gather crucial feedback early. Use that feedback to refine your work.Collaborate. Offer assistance, listen actively, and strive to understand. Take initiative and step up when needed.Avoid overengineering. Keep it simple and straightforward.Enjoy your work. Celebrate your successes.Technologies We UseOur primary stack includes Ruby for the backend, utilizing the Ruby on Rails framework, with Javascript (ES6) and React/Redux for the frontend. We rely on a MariaDB cluster for storage and extensively use Elasticsearch, Kafka, MongoDB, Redis, and Memcached. Jenkins is our CI tool, complemented by monitoring tools such as Sentry, NewRelic, and Grafana. We prioritize selecting the best tools that meet our needs. Explore more on our Engineering blog.

We invite you to become a part of our dynamic team as a Norwegian-speaking Business Development Representative. This position offers a fantastic chance to engage with leading companies in the realms of IT, Hardware solutions, and Cloud Computing while spearheading initiatives for business growth and enhancing client relationships. If you are a motivated individual with excellent communication skills and a passion for technology, we encourage you to apply!Key Responsibilities: Scout and identify new business prospects within the Norwegian-speaking market to broaden the client base. Establish and nurture robust relationships with potential clients and influential decision-makers. Present and showcase the company’s services effectively to prospective clients. Perform comprehensive market research to unearth new leads and comprehend market dynamics. Collaborate with internal teams to design and execute successful sales strategies. Maintain accurate records of all sales activities and client interactions in the CRM system. Requirements: Proficiency in Norwegian (C1 or higher) and strong command of English. Outstanding communication and presentation skills. Self-driven and able to work independently as well as collaboratively. Excellent organizational skills with a focus on achieving results. Preferred Qualifications: Previous experience in business development or sales, ideally within the tech industry. Solid understanding of B2B sales with experience engaging senior stakeholders. Benefits: Attractive remuneration package. Performance-based monthly bonuses. Comprehensive training to enhance your sales expertise. Health care benefits along with various discounts. Meal vouchers provided. Relocation assistance for candidates moving from abroad, covering travel expenses and initial accommodation.

Mellon Technologies, a prominent subsidiary of the Mellon Group of Companies, excels in delivering comprehensive technology and business solutions to financial institutions and organizations worldwide. Join our innovative team and spearhead advancements in the fast-paced payment technology industry.We are on the lookout for an enthusiastic and results-oriented EFT/POS Business Development Manager to become a vital part of our payments product unit. This pivotal role entails leading and enhancing sales of Merchant Acquiring Products and Services directed towards Acquirers (Banks), Payment Service Providers (PSPs), and various payment-enabled entities, focusing primarily on Greece and other international markets where the Mellon Group operates.This position encompasses all facets of business development, including increasing profitability and market visibility of existing offerings, as well as spearheading initiatives to innovate and launch new products and services for Mellon Technologies.

Join our vibrant team at Speakitjobs as a Dutch Business Development Representative! If you are enthusiastic about sales and business development, and possess a background in outbound sales with a strong interest in cloud computing, particularly Cloud Platform solutions, we want to hear from you!In your role as a Business Development Representative, you will be instrumental in generating new business through targeted outbound campaigns. You will foster relationships with potential customers and pinpoint sales opportunities, enabling businesses to enhance collaboration, accelerate progress, and innovate by offering tailored digital solutions.Key Responsibilities:Lead Generation & Qualification: Proactively reach out to small and medium-sized businesses through outbound calls and emails. Develop and implement territory action plans to identify target companies and potential prospects. Engage in meaningful conversations with senior decision-makers to assess their needs and qualify them as potential customers. Schedule meetings to forward leads to other sales teams, striving to achieve or surpass monthly targets. Research and expand both existing and new accounts while effectively managing objections to qualify opportunities. Product Sales & Upselling: Make daily outbound calls and send emails to connect with decision-makers, understand their needs, and finalize sales. Communicate the advantages of our client's products and solutions, demonstrating how they address customer needs across various industries and company sizes. Lead outbound prospecting campaigns from initial outreach through to deal closure. Build and nurture relationships with existing customers, promoting additional products or expanding their current services. Address minor technical issues or escalate them to the appropriate team as necessary.

Are you driven by a passion for sales and business development? Do you have a background in outbound sales and a strong interest in cloud computing, especially in Cloud Platform solutions? If yes, we invite you to explore this exciting opportunity to become part of our vibrant team!In your role as a Business Development Representative, you will be instrumental in generating new business through various outbound campaigns. You will cultivate relationships with potential customers and identify promising sales opportunities. By recommending tailored digital solutions, you will help businesses enhance collaboration, accelerate their processes, and foster innovation.Responsibilities:Project 1: Lead Generation & Qualification Proactively reach out to small and medium-sized enterprises via outbound calls and emails. Develop and implement territory action strategies, targeting specific companies and prospects. Engage in meaningful discussions with senior decision-makers to understand their needs and assess their qualification as prospective customers. Arrange meetings to hand off to other sales teams, with the objective of meeting or surpassing monthly quotas. Research and expand existing and new accounts while effectively addressing objections to qualify opportunities. Project 2: Product Sales & Upselling Perform daily outbound calls and emails to connect with decision-makers, identify their needs, and finalize sales. Articulate the advantages of the client's products and solutions, emphasizing how they address customer needs across diverse industries and company sizes. Lead outbound prospecting efforts, from initial outreach through to deal closure. Manage and nurture relationships with existing customers, proposing additional products or expanding their current service usage. Troubleshoot minor technical issues or escalate them to the relevant team.

Join Bally’s Intralot as an Oracle PL/SQL DeveloperAs an Oracle PL/SQL Engineer at Bally’s Intralot, you will contribute to the design and evolution of the database architecture supporting our enterprise platforms. Collaborating closely with backend engineers, you will ensure seamless integration between PL/SQL logic and Java/Spring Boot services, delivering scalable and high-quality solutions that serve clients across global markets.Your Key Responsibilities:Design, develop, and maintain PL/SQL packages, procedures, functions, triggers, and views.Work collaboratively with Java/Spring Boot teams to integrate PL/SQL logic into backend services.Optimize SQL queries and database structures to enhance performance and scalability.Assist in data migration activities, ETL processes, and system integrations.Engage in database design, schema reviews, and code quality assessments.Troubleshoot and resolve performance issues, production incidents, and database bottlenecks.Keep technical documentation clear and up-to-date.Contribute to the enhancement of development standards, code quality, and automation practices.

Join our client, a leading BPO in Greece, as a German-Speaking Sales Development Representative and play a crucial role in promoting a global leader in cloud solutions. This position is ideal for a motivated professional with a solid grasp of B2B sales, eager to make a significant impact in an innovative technology environment.Key Responsibilities:Explore and cultivate new business opportunities in targeted markets to enhance the client portfolio.Build and maintain strong relationships with key decision-makers to drive future sales.Effectively present and showcase the company’s cloud solutions to prospective clients, highlighting the unique value propositions.Conduct thorough market research and analysis to shape sales strategies and discover potential leads.Work collaboratively with internal teams to ensure alignment on sales strategies and marketing efforts.Keep precise records of sales activities and customer interactions within the CRM system.Requirements:Fluency in German (C1–C2 level) is a must, along with proficient English skills.Demonstrated experience in business development or sales within the technology sector, ideally related to cloud solutions (preferred but not required).Comprehensive understanding of the B2B Sales process with the ability to engage senior-level stakeholders.Outstanding communication and presentation skills.Proven ability to work independently and collaboratively within a team.Exceptional organizational skills and a results-driven mindset.Benefits:Competitive SalaryMonthly and Quarterly BonusesMeal VouchersIndefinite ContractPrivate Life and Health Insurance25 days of Annual LeaveRelocation package for candidates moving from abroad, covering travel expenses and initial accommodation.

About EveryPayEveryPay is dedicated to revolutionizing the digital financial infrastructure that supports e-commerce in Greece, enabling Marketplaces and Merchants to flourish.Our vibrant team, driven by core values such as Empowering Customers, Collaborative Teamwork, Risk Management, and Delivering Results, is passionate about making a difference.We take pride in establishing a robust payment layer that connects numerous Greek Marketplaces and Merchants with leading global payment schemes, including Visa and MasterCard. Our reach extends to the largest and most successful marketplace in Greece: Skroutz.With our systems interfacing with thousands of banks both domestically and internationally, we process tens of thousands of transactions daily, equating to billions of euros in e-commerce. If you've ever made an online purchase in Greece, it's likely that our payment solution played a part.As a member of the Skroutz Group of Companies, EveryPay operates as both a Tech Company and a Regulated Financial Services Institution, providing you with insights into the Tech Payments Sector alongside Financial Services.About the RoleWe seek a talented Salesforce Developer to join our dynamic team, focusing on designing, building, and maintaining scalable Salesforce solutions. You will collaborate closely with business stakeholders and fellow developers to implement innovative features, automate processes, and facilitate integrations.Key Responsibilities:Design, develop, and maintain Salesforce solutions utilizing Apex, Lightning Web Components (LWC), and Flows.Customize Salesforce functionality across Sales Cloud and Service Cloud.Develop and manage automations, including Flows, validation rules, and approval processes.Create and maintain Apex classes, triggers, and test classes.Engage in integrations with external systems using REST APIs and middleware tools.Collaborate with consultants and business users to translate requirements into effective technical solutions.Ensure adherence to code quality, security, and performance best practices.Assist with deployments, bug fixes, and system enhancements.Contribute to documentation and knowledge sharing within the team.Qualifications for Success:2–4 years of hands-on experience in Salesforce development.Strong expertise in:ApexLightning Web Components (LWC)Salesforce declarative tools (Flows, Process Automation)Solid understanding of the Salesforce data model, security, and sharing settings.Familiarity with REST/SOAP APIs and basic integration concepts.Proven ability to work autonomously and manage tasks throughout the development lifecycle.Preferred Qualifications:Salesforce certifications.Experience with agile methodologies.

Are you a fluent French speaker with a passion for technology? Join our dynamic team at Speakit as a French Sales Development Representative. You will be the voice of one of the largest American software companies, engaging with clients to present our innovative products and services, guiding them through the purchasing process, and ensuring their satisfaction at every step.Don't miss the chance to elevate your career with a leading firm that serves a global clientele!In a typical day, your responsibilities will include:Advising clients by recommending and quoting products while identifying sales opportunities.Providing prompt responses and consultations to address customer inquiries and resolve issues.Reaching out to targeted business leads through phone and email communications.Managing the complete sales process and achieving monthly sales targets.Maintaining in-depth knowledge of products and the brand.Conducting daily research on potential business prospects.Meeting or surpassing the minimum daily outbound contact target.

Are you driven by achieving goals and motivated to assist others?Do you have a strong desire to maximize sales opportunities?We have exciting news for you!Our client, a reputable Forex Company, is offering a fantastic full-time career opportunity for Account Managers at their headquarters in Athens.Are you the talent we are seeking?Key ResponsibilitiesAs a Sales and Business Development Representative, your daily tasks will include identifying prospects, engaging with leads, qualifying potential opportunities, and successfully closing deals. You will also have the chance to utilize your skills to upsell and cross-sell to our esteemed existing clients, thereby driving additional revenue and nurturing long-term relationships.Promoting the company's diverse range of products and servicesAssisting clients in opening trading accountsProviding clients with information and education about our offeringsKeeping clients informed about the latest financial newsTraining clients on utilizing our trading platformsAdhering to the company’s core values consistently