Senior Software Developer at PeopleCert | Athens, Greece

Are you eager to contribute to a pioneering force in educational technology? Join PeopleCert, the global leader in the assessment and certification of professional skills, with a presence in over 200 countries. This is your opportunity to apply now!We are seeking a skilled Senior Software Developer to become an integral part of our Software Development Team.…

Mellon Technologies, the flagship entity of the Mellon Group of Companies, has been a leader in technology solutions since its inception in 1994 in Athens. Our comprehensive suite of services includes specialized technology solutions, contact center operations, and business process outsourcing designed to meet the growing demands of financial institutions and organizations with robust consumer transaction activities, including Retail Banks, Public Utilities, Telecommunications Providers, and large Private Companies.We are currently on the lookout for a highly talented Senior .NET Developer with a passion for architecture and team leadership.Position Overview: The successful candidate will possess exceptional hands-on development skills paired with advanced expertise in analysis, solution design, and technical leadership. You will be instrumental in steering the development team towards delivering high-quality solutions while ensuring effective communication with stakeholders and clients.Key Responsibilities:Architect and develop robust backend solutions leveraging C# and .NET technologies.Perform system analysis, recommend architectural enhancements, and advocate for best practices.Engage collaboratively with product owners, business analysts, and clients to gather requirements and translate them into technical deliverables.Mentor junior developers, conduct code reviews, and uphold software development standards.Participate actively in planning, estimation, and technical decision-making processes.Optimize system performance, scalability, and reliability through thoughtful design and implementation.Qualifications:5+ years of hands-on experience in backend development utilizing Microsoft technologies (C#, .NET / .NET Core).Thorough understanding of software architecture, design patterns, and clean coding principles.Proficiency in RESTful APIs, Entity Framework, and SQL databases.Ability to dissect complex requirements and convert them into actionable technical specifications.Exceptional communication skills with an aptitude for interacting with clients and internal stakeholders.Demonstrated experience in leading or mentoring development teams.Preferred Qualifications:Full-stack experience with Razor, Blazor, or other Microsoft web technologies.Familiarity with cloud platforms (Azure preferred).Knowledge of DevOps practices and CI/CD pipelines.Experience with frontend frameworks (e.g., JavaScript, TypeScript) is a plus.Soft Skills:Strong problem-solving mindset and a sense of ownership.Ability to work autonomously and collaboratively within a team.Proactive attitude and meticulous attention to detail.

Join our dynamic team at atcom as a Senior iOS Developer. In this role, you will leverage your expertise in mobile application development to create innovative and user-friendly iOS applications. Collaborate with cross-functional teams to design, develop, and maintain high-quality software solutions that meet our clients' needs.

Join Novibet as a Senior .NET Software Developer!Are you ready to play a pivotal role in a vibrant and rapidly expanding company? If you possess a deep passion for software development and excel in a fast-paced setting, this could be the perfect opportunity for you.Who We AreEstablished in 2010, Novibet is a leading GameTech company with operations spanning Europe, the Americas, and various other regions including Greece, Brazil, Ireland, Finland, Mexico, Chile, Ecuador, Cyprus, and New Zealand. With offices in Greece, Malta, Brazil, and Mexico, we proudly employ over 1,200 professionals globally. Our commitment to staying ahead in technological advancements enables us to continuously push boundaries and provide seamless entertainment and online gaming experiences to our expanding customer base.Why Choose Novibet?At Novibet, you are encouraged to thrive, with a focus on growth through collaboration, learning, and adaptability. We are dedicated to creating a positive, inclusive workplace culture that empowers every individual to excel. Become a part of our dynamic team of over 1,200 people who value innovation, teamwork, and personal growth.Your ResponsibilitiesDeveloping high-quality web and API applications using C# and .NET CoreParticipating in the technical design of systems and exploring new tools and technologiesRefactoring, updating, and debugging existing codeImplementing security measures and ensuring data protectionIntegrating with third-party service APIsUnderstanding web protocols (HTTP) and RESTful APIs for consumption and creationMaintaining efficient MS SQL databasesEngaging in team code reviewsYour QualificationsA University or Postgraduate Degree in a relevant field5+ years of professional experience, preferably in FinTech or Payment SolutionsProficiency in C# .NET 6.0+, WebAPI, Entity Framework, and LINQA focus on efficiency, user experience, and process enhancementStrong time management capabilitiesAble to work both independently and collaborativelyFluency in English, both spoken and writtenDesired Technical SkillsExperience with Microservices architectureFamiliarity with message brokersUnderstanding of Domain Driven Design, CQRS, and clean architecture principlesKnowledge of reactive programming patternsAbility to write clean, maintainable, and fault-tolerant codeWhat We OfferWe highly value our team members at Novibet! In our dynamic and fast-paced environment, we encourage everyone to reach their full potential while enjoying a collaborative and supportive workplace.

Jobgether is looking for a Senior Unity Developer to focus on poker games. This position is based in Greece and centers on building engaging poker applications for players around the world. Role overview The Senior Unity Developer will design and develop poker games using Unity. The work involves both creative and technical problem-solving, with the goal of delivering high-quality gaming experiences. Collaboration This role involves working closely with cross-functional teams. Sharing ideas and working together will help enhance the company’s game offerings and ensure each release meets high standards. What you will do Design and develop poker applications in Unity Contribute creative and technical input to gaming projects Work with other teams to improve and expand game features

Join Novibet as a Senior .NET Software Developer!Are you ready to play a vital role in a dynamic and rapidly growing GameTech company? If you are passionate about software development and thrive in fast-paced environments, we want you on our team in Heraklion, Crete!About UsFounded in 2010, Novibet is a leading GameTech company with operations across Europe, the Americas, and other regions, including Greece, Brazil, Ireland, Finland, Mexico, Chile, Ecuador, Cyprus, and New Zealand. With hubs in Greece, Malta, Brazil, and Mexico and over 1200 employees, we are at the forefront of technological advancements, offering seamless entertainment and online gaming experiences to our expanding customer base.Why Choose Novibet?At Novibet, we empower our employees to excel by fostering a culture of growth, collaboration, and innovation. We value inclusivity and support, ensuring a workplace where every individual can thrive. Join us to be part of a global team that values personal and professional development.Your ResponsibilitiesDevelop high-quality web and API applications using C# and .NET CoreParticipate in the system's technical design and explore new tools and technologiesRevise, update, refactor, and debug existing codeImplement robust security measures and data protection protocolsIntegrate with various third-party API servicesUnderstand web protocols and RESTful APIs for effective consumption and constructionMaintain efficient MS SQL databasesEngage in collaborative code reviews with your teamYour QualificationsUniversity and/or postgraduate degree in a relevant field4+ years of experience in software development, preferably in FinTech or Payment SolutionsStrong focus on efficiency, user experience, and process improvementExcellent time management and organizational skillsAbility to work independently as well as in team settingsProficiency in English, both verbal and writtenTechnical Skills We ValueProficient in C# .NET 6.0+, WebAPI, Entity Framework, and LINQExperience with microservices architectureFamiliarity with message brokersKnowledge of Domain Driven Design, CQRS, and clean architecture principlesExperience with reactive programming patternsAbility to produce clean, maintainable, and fault-tolerant codeWhat We OfferAt Novibet, we truly value our people! You will thrive in a vibrant, dynamic environment that encourages reaching your full potential.

Become a vital part of our growing development teams as we are on the lookout for an experienced Big Data Developer. In this role, you will be at the forefront of innovation, contributing to large-scale international projects. You will collaborate closely with our agile software implementation and maintenance teams to not only develop new solutions but also enhance existing systems.Key Responsibilities:Design and implement robust solutions for big data processing using technologies such as Java and Python.

Join Skroutz, where our vision is to redefine online shopping experiences. Since our inception in 2005, we have been committed to understanding our customers' needs and delivering exceptional value to both consumers and merchants alike.Our ambition is to establish Skroutz as the Everyday App, the ultimate destination for millions seeking everything from the latest smartphones to essential groceries, trendy clothing, and even rare gaming collectibles. We are excited to expand our reach beyond Greece, targeting rapid growth across Europe, including Cyprus and the Balkans, with a steadfast focus on customer satisfaction at every step.We are on the lookout for passionate individuals who thrive in e-commerce and technology. If you are eager to create outstanding shopping experiences and empower sellers globally, we invite you to be part of our dynamic team.At Skroutz, we believe in turning everyday moments into extraordinary experiences. Ready for the challenge?#AimToAmazeOur Engineering ValuesMaster your craft. Be proud of your work and continuously improve your skills.Release early & Iterate. Gather feedback swiftly and refine your approach based on insights.Collaborate effectively. Support your teammates and take initiative.Simplify your processes. Avoid unnecessary complexity in your work.Enjoy what you do. Celebrate your successes.Technologies We UseOur primary technology stack includes Ruby for backend development using the Ruby on Rails framework, complemented by Javascript (ES6) and React/Redux for frontend solutions. We utilize a MariaDB cluster for data storage and leverage Elasticsearch, Kafka, MongoDB, Redis, and Memcached for enhanced performance. We employ Jenkins for CI/CD and various monitoring tools like Sentry, NewRelic, and Grafana to ensure system reliability. For more insights into our engineering practices, visit our Engineering blog.

Become a Vital Part of Our Team as a Health and Safety Expert at Intracom Defense (IDE)About UsAt Intracom Defense (IDE), we take pride in being Greece's leading technology defense company, dedicated to innovation and excellence on a global scale.Our mission is to research, design, develop, and manufacture state-of-the-art products, systems, and solutions across various sectors, including Tactical Communication and Information Systems, Missile Electronics, Surveillance Solutions, Hybrid Electric Power Systems, Next-Generation Unmanned Air and Sea Platforms, and disruptive technologies such as Artificial Intelligence and Cyber Security.As a trusted NATO supplier, IDE plays a pivotal role in international defense initiatives, contributing to development, production programs, and industrial cooperation within the defense sector.IDE is also a prominent participant in EU research and development programs, where our commitment to research and innovation drives the technological advancements of tomorrow.With a focus on people and technology, we are not just about defense—we are about shaping the future! Location: Koropi, Attica Working Model: On-site Growth Opportunities: Access to continuous learning, professional development, and career advancement pathways Reporting to: Section ManagerWhy You Should Join Us:We are seeking a Health and Safety Expert who is passionate and skilled in driving change. If you are ready to lead and innovate, IDE is the right place for you.Your Responsibilities Will Include: Managing Health & Safety protocols Implementing and monitoring ISO 45001 & ISO 14001 compliance Conducting training for employees on Health & Safety and Environmental matters Performing hazard risk assessments and developing preventive and corrective measures for both projects and daily operations Investigating and addressing occupational accidents Ensuring adherence to waste management regulations Conducting internal audits Overseeing environmental management Managing environmental licensing and compliance with laws and regulations What We Offer You: A supportive and dynamic work environment Competitive compensation package based on qualifications and experience Opportunities for continuous learning and career development Private health insurance Corporate transport from metro stations Onsite dining facilities Work-life balance initiatives

Become a Part of Our Team as a Senior Mechanical Development Engineer at Intracom DefenseAbout UsJoin Intracom Defense, Greece's leading technology defense company dedicated to innovation and excellence.Our mission is to pioneer and deliver advanced technology solutions on a global scale.At IDE, we engage in research, design, development, and manufacturing of state-of-the-art products, systems, and solutions in fields such as Tactical Communication and Information systems, Missile Electronics, Surveillance Solutions, Hybrid Electric Power systems, Next-gen Unmanned Air and Sea platforms, and transformative technologies like Artificial Intelligence and Cyber Security.As a prominent player in the international defense industry, IDE is a registered NATO supplier and actively participates in global development and production programs, along with industrial cooperation initiatives for the defense sector.Furthermore, IDE is a trusted leader in EU research and development programs, where research and innovation lead the charge for future technological advancements.At IDE, we prioritize investing in both our people and technology!We're not just about defense — we're about shaping the future! Location: Koropi, [East] Suburbs Working Model: On-site Growth Opportunities: Access to continuous learning, professional development, and clear career advancement pathways. Reporting to: Mechanical Engineering Section Manager of the Products Development DepartmentWhy You Should Join Us:We seek a Senior Mechanical Development Engineer who is not only a skilled engineer but also meticulous and passionate about driving innovation. If you are ready to lead and impact the industry, IDE is the place for you.Your Responsibilities: Engage in the mechanical design and development of advanced defense products. Participate in the full development cycle of defense projects, including system requirements specification, design, analysis, technical data package creation, prototype development, integration, prototype testing and installation, adhering to safety requirements and manufacturing processes, as well as executing structural, thermal, and CFD simulations. Your Benefits: A friendly and dynamic working environment. Competitive remuneration package based on qualifications and experience. Opportunities for continuous learning and career development. Private health insurance. Corporate transportation from metro stations. Onsite dining facilities. Work-life balance initiatives.

Please submit your CV in English and highlight your language proficiency. Mindrift offers project-based contracts for professionals interested in shaping and testing AI systems for leading technology companies. This freelance Data Scientist (Python & SQL) - AI Training Specialist position is not a permanent role but focuses on specific projects. Work is fully remote and open to those based in Greece. Role overview This contract centers on designing and validating computational data science problems that reflect real-world analytics challenges. Projects span industries such as telecom, finance, government, e-commerce, and healthcare. The work involves creating complex, computationally demanding scenarios that require advanced data science skills and cannot be solved manually in a short time. What you will do Design data science problems based on realistic business cases, including customer analytics, risk assessment, fraud detection, forecasting, and optimization. Develop challenges solvable using Python and libraries like Pandas, Numpy, Scipy, Scikit-learn, Statsmodels, Matplotlib, and Seaborn. Ensure each problem is deterministic and reproducible, using either no randomness or fixed seeds. Include tasks that require advanced reasoning: data manipulation, statistical analysis, feature engineering, predictive modeling, and drawing insights. Address the full data science workflow: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Incorporate big data scenarios that demand scalable solutions. Validate solutions in Python using established libraries and statistical approaches. Clearly document each problem, providing realistic context and verified solutions. Requirements Minimum 5 years of hands-on data science experience with measurable business outcomes. Portfolio of projects or publications showing real-world problem solving. Strong Python skills for data science tasks (pandas, numpy, scipy, scikit-learn, statsmodels). Advanced knowledge of statistical analysis and machine learning, both algorithms and practical applications. Expertise in SQL and database operations for analytics. Experience with Generative AI technologies, including LLMs, RAG, prompt engineering, and vector databases. Understanding of MLOps and model deployment workflows. Familiarity with frameworks such as TensorFlow, PyTorch, or LangChain. Excellent English skills (C1 level or above). Application process Apply Pass qualifications Join a project Complete tasks Receive compensation This freelance role is remote and open to candidates based in Greece.

Role overview The Senior Sales & Engagement / Account Development Executive at NielsenIQ is based in Athens and plays a key role in driving sales growth and strengthening client relationships. This position combines new business development with ongoing account support to ensure clients receive high-quality service and attention. What you will do Identify and pursue new business opportunities in target markets Build and maintain relationships with existing clients Provide attentive, responsive service to meet client needs Collaborate with cross-functional teams to create solutions tailored for each client Use sales strategies and conduct market analysis to help grow the business Collaboration This position involves working closely with colleagues from different departments to address client challenges and deliver the right solutions. Effective teamwork and a strong grasp of client objectives are essential for success in this role.

Join Danaos Shipping as a Mid-Senior Software Developer and contribute to innovative maritime solutions. We are seeking a talented developer who is passionate about technology and thrives in a dynamic environment. Your role will involve designing, developing, and maintaining software applications that support our shipping operations.

Mercier Consultancy seeks a Swedish-speaking Helpdesk Expert to support a well-known restaurant platform from the Athens office. This role provides technical and customer support to Swedish-speaking clients in the restaurant industry, focusing on both troubleshooting and guiding users through the platform's features. Role overview The Helpdesk Expert serves as the first point of contact for Swedish-speaking users. Day-to-day work involves resolving technical issues, assisting with onboarding, and ensuring clients have a smooth experience using the platform. Strong command of Swedish and solid technical skills are key for this position. Main responsibilities Provide helpdesk support to restaurant clients in Swedish via phone, email, and chat. Troubleshoot and resolve technical problems related to the platform. Assist clients with onboarding, training, and using platform features effectively. Document support cases and client communications in the ticketing system. Collaborate with product and development teams by sharing client feedback. Stay updated on platform changes and industry trends to offer relevant support. Location This is an on-site role based in Athens, Attica, Greece.

IKH is a globally recognized leader in Software & Robotics Solutions, renowned for our innovative approach to digital transformation. In just a few years, our dynamic team has expanded by over 80%, and we have relocated to a modern, spacious office to accommodate our growth. As we embark on numerous exciting projects in 2026, we are eager to welcome a skilled Backend Developer to our team to tackle challenging outsourced projects.Key Responsibilities:Execute complex project tasks with precision.Utilize Waterfall implementation methodologies effectively.Translate client requirements into robust functionalities.Collaborate closely with the architecture team to align solutions with client needs.Integrate applications with developed modules and external systems.Support deployment and configuration management activities.

Mellon Technologies, a leader in technology solutions and parent of the Mellon Group of Companies, has been at the forefront of innovation since its inception in 1994 in Athens. We specialize in providing tailored technology solutions, contact center services, and business process outsourcing, addressing the growing demands of financial institutions and organizations with substantial consumer transaction operations, including Retail Banks, Public Utilities, Telecommunications Providers, and large Private Companies.We are seeking a talented Mid/Senior .NET Developer who possesses a strong blend of hands-on development skills and expertise in analysis, solution design, and technical leadership. The successful candidate will play a pivotal role in steering the development team towards delivering high-quality solutions while effectively communicating with stakeholders and clients.Key ResponsibilitiesLead the design and development of robust backend solutions utilizing C# and .NET technologies.Conduct thorough system analyses and propose architectural enhancements.Collaborate closely with product owners, business analysts, and clients to ascertain requirements and convert them into effective technical solutions.Engage in planning, estimation, and technical decision-making processes.Guarantee system performance, scalability, and reliability through sound design and implementation practices.RequirementsMinimum 2 years of professional experience in backend development using Microsoft technologies (C#, .NET/.NET Core).Deep understanding of software architecture, design patterns, and principles of clean coding.Proficiency in developing RESTful APIs, utilizing Entity Framework, and working with SQL databases.Capable of analyzing complex requirements and translating them into precise technical specifications.Exceptional communication skills with the ability to interact with clients and internal stakeholders effectively.Fluency in English (both spoken and written). Soft SkillsStrong problem-solving orientation and a sense of ownership.Able to work efficiently both independently and collaboratively within a team.Ability to operate within a regulatory framework and leverage it for continuous improvement.Methodical approach with excellent problem-solving skills.Proactive, detail-oriented, and committed to continuous improvement. BenefitsAttractive salary package.Opportunities for growth within an international environment.Modern hybrid workplace that promotes flexibility and smart working.Comprehensive programs to support your well-being (flexible working arrangements, parental allowances).Engagement in large-scale international teams and projects.Continuous opportunities for professional development.

Mercier Consultancy is hiring an Italian Customer Expert to represent a well-known electronics brand in Athens, Greece. This position includes a fully paid relocation package, making it possible to build your career while experiencing life in a vibrant European city. Role Overview The Italian Customer Expert supports Italian-speaking clients by answering questions, solving problems, and providing detailed information about products. This work directly impacts customer satisfaction and loyalty to the brand. What You Will Do Deliver accurate product details, help with troubleshooting, and assist with order management for customers. Respond to customer complaints professionally and promptly to maintain satisfaction. Work closely with internal teams to resolve product or service issues. Maintain clear and accurate records of all customer interactions and transactions. Assess customer needs, provide appropriate solutions, or escalate issues when needed. Participate in ongoing training to keep up with product updates and customer service standards. Location and Relocation This role is based in Athens, Attica, Greece. Mercier Consultancy provides a fully paid relocation package for successful candidates.

Join Mercier Consultancy Group as a Danish-Speaking B2B Sales Expert and embark on an exciting career journey in Greece! We are dedicated to fostering professional growth while providing an immersive cultural experience. This role is pivotal in establishing and nurturing business relationships within the Danish-speaking market, driving sales expansion and contributing significantly to our organizational success.Key ResponsibilitiesProactively identify and engage potential B2B clients in the Danish-speaking market through strategic outreach and relationship management.Effectively present and promote our products and services tailored to meet client needs.Oversee the entire sales cycle from initial contact to deal closure, ensuring high levels of client satisfaction at every stage.Collaborate closely with marketing and product teams to develop targeted campaigns and customized solutions.Maintain precise records of sales activities and client interactions using our CRM system.Achieve or surpass set sales targets while contributing to overall team success.

Please submit your CV in English and indicate your English proficiency level. This freelance, project-based role with Mindrift connects experienced data science professionals to AI projects for leading technology companies. Assignments focus on testing, evaluating, and improving AI systems. This is not a permanent position. Role overview The Freelance Data Science Engineer (Python & SQL) creates and validates computational data science challenges for real-world business applications. Projects are varied and may include: Designing original data science problems that reflect analytical processes in industries such as telecom, finance, government, e-commerce, and healthcare. Developing tasks requiring Python programming with libraries like Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, and Seaborn. Ensuring challenges are computationally intensive and not solvable manually within days or weeks. Formulating problems involving complex reasoning in data processing, statistical analysis, feature engineering, predictive modeling, and insight generation. Designing deterministic problems with reproducible results, either by avoiding randomness or using fixed random seeds. Basing scenarios on genuine business needs such as customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Covering the full data science pipeline, from data ingestion and cleaning to exploratory analysis, modeling, validation, and deployment considerations. Introducing big data scenarios that require scalable computational approaches. Validating solutions using Python, established data science libraries, and statistical methods. Documenting problem statements in realistic business contexts and providing verified solutions. Requirements Minimum 5 years of hands-on data science experience with measurable business outcomes. Portfolio of completed projects or publications that demonstrate real-world problem-solving. Expertise in Python for data science (including pandas, numpy, scipy, scikit-learn, statsmodels). Strong background in statistical analysis and machine learning, with practical knowledge of algorithms. Proficiency in SQL and database operations for data analysis. Familiarity with GenAI technologies, such as LLMs, RAG, prompt engineering, and vector databases. Understanding of MLOps practices and model deployment workflows. Experience with frameworks like TensorFlow, PyTorch, or LangChain. Excellent written English skills (C1 level or higher). How the process works Apply Meet qualifications Join a project Complete assigned tasks Receive payment Location: Remote, Greece

Join our innovative Product Development Department as a Mid to Senior iOS Developer at Betsson Group. Collaborate with the talented Mobile Apps team to create exceptional native experiences that set industry standards!Why Betsson?At Betsson Group, we are dedicated to providing outstanding customer experiences in the iGaming sector. As a leading market player, we deliver online gaming products across various markets through both our own platforms and partner brands.Become part of a passionate team that is developing a scalable, multi-brand platform supporting over 25 online brands, enjoyed by hundreds of thousands of users worldwide.Work alongside some of the brightest talents in the industry.Develop applications that handle high traffic, reaching a global audience.Enjoy strong ownership of your contributions and our collective success.Experience a friendly and supportive environment with professional development programs to help you grow both technically and personally.Engage in a diverse and multicultural community at Betsson.