Mid Senior Java Software Engineer jobs in Athens – Browse 500 openings on RoboApply Jobs

Mid Senior Java Software Engineer jobs in Athens

Open roles matching “Mid Senior Java Software Engineer” with location signals for Athens. 500 active listings on RoboApply Jobs.

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companyNetcompany logo
Full-time|On-site|Athens

Are you eager to explore the exciting opportunity of becoming a Java Software Engineer at Netcompany?As a member of our dynamic agile teams, you will engage in large-scale transformation projects for global clients across diverse and stimulating sectors including European Institutions, Telecoms, Sports Betting & Lotteries, Fintech, Healthtech, and Public Domain (next-gen).In your role as a Java Software Engineer, you will be responsible for:Designing, developing, and maintaining the back-end of extensive web-based Java EE applicationsParticipating in the technical analysis, documentation, implementation, and integration of robust applicationsTesting and managing early life support for core software tools and assets produced during software development projects

Feb 9, 2026
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companyIKH logo
Full-time|Hybrid|Athens, Attica, Greece

IKH is a premier Software and Robotics Solutions provider making significant strides in the global market. Over the past few years, our team has expanded by over 80%, leading us to relocate to a modern, spacious office. As we embark on 2025, we're excited to introduce several innovative projects focused on digital transformation, custom software development, and robotics.We are currently seeking a talented Senior Java Software Engineer with a robust technical background and extensive experience to tackle challenging outsourced projects.In this position, you will not only develop complex project tasks but also supervise the development efforts of junior developers. You will analyze functional requirements and decompose tasks for team assignment.To thrive as a Senior Software Developer, you should possess profound knowledge of Java technologies and exhibit strong leadership capabilities. Exceptional communication skills are essential as you will collaborate with clients and various development teams.Your Daily Responsibilities:Design, develop, and maintain the back-end of large-scale web-based Java EE/Spring applications.Engage in technical analysis, documentation, implementation, and integration.Test and manage early support for core software tools and assets developed during software projects.Translate requirements into functional specifications.Employ BDD (Behaviour-Driven Development) methodology in coding and software implementation.Align solutions with client needs, particularly in collaboration with the architecture team.Execute integrations with other applications and developed modules.Provide assistance with deployment and configuration management.

Jan 19, 2026
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companyBallys Central Lotsa logo
Senior Java Software Engineer

Ballys Central Lotsa

Full-time|On-site|Athens, Attikí, Greece

Role overview Ballys Central Lotsa is looking for a Senior Java Software Engineer in Athens, Attikí, Greece. This position focuses on designing, building, and maintaining complex software systems that support core business needs. What you will do Design, implement, and support Java-based software solutions Work with teams across disciplines to clarify and refine project requirements Help ensure deliverables meet quality standards and business goals

Apr 20, 2026
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companyIntralot logo
Full-time|On-site|Athens, Attikí, Greece

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.

Apr 20, 2026
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company
Full-time|On-site|Athens, Attica, Greece

The TeamOpenBet stands as a premier global provider in the betting and gaming entertainment industry, partnered with over 200 clients to craft unforgettable winning moments for millions of players globally. From managing bets during landmark events such as the FIFA World Cup and the Super Bowl to developing innovative products like BetBuilder, we are committed to enhancing the player experience with top-tier content, state-of-the-art technology, and robust player protection mechanisms.For more than 25 years, our unparalleled platform has fueled the most prominent betting brands, maintaining optimal performance with 100% uptime, unmatched scalability, and rapid response times. With 85 licenses and a clientele that includes 20 operators from the World Lottery Association, our team of over 1,200 experts across 14 countries remains at the forefront of the industry. Join OpenBet and elevate your career by being part of a dynamic global team that is shaping the future of betting entertainment for millions.The GoalAs a Senior Software Engineer at OpenBet, you will gain exposure to vital systems, along with comprehensive training and mentorship to advance both our software and your professional growth.Your Responsibilities:Develop new features and functionalities for high-transaction, large-scale betting platforms and systems;Lead design and code reviews;Identify and resolve performance bottlenecks in the software;Design modular, scalable, and portable solutions; spearhead enhancements to system architecture;Mentor, guide, and potentially manage junior software engineers;Collaborate with customer stakeholders to communicate complex technical concepts.Your Profile:A bachelor’s degree in computer science, engineering, or information systems from a recognized institution;Proven programming proficiency in Java;Strong foundational programming skills (data structures, algorithms);Experience in database design and optimization (any vendor);Familiarity with web technologies and internet protocols (SOAP, WS-*, ReST, XML, HTTP, TCP/IP);Exceptional communication skills, both written and verbal;6+ years of professional software development experience.Preferred Skills and Experiences:Experience in Linux development;Proficiency in TCL;Web development experience with React, HTML, HTML5, and CSS;Knowledge of Agile methodologies, Scrum, BDD, TDD;Experience with Jenkins or other CI tools;Good understanding of Git or other version control systems;Scripting knowledge in Bash, Perl, Python, and JavaScript;Experience developing software that integrates with third-party systems;Background in software development for high-availability environments.

Mar 12, 2026
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company
Java Software Engineer

European Dynamics

Full-time|On-site|Athens, Attica, Greece

Are you a driven Software Engineer with a strong passion for Java? This is your chance to become a key player in a vibrant team based in Athens!Your Responsibilities: Engage in the analysis, design, development, and maintenance of intricate web-based Java applications, collaborating within a dedicated team that upholds exceptional professional standards. Participate actively in all stages of the software development lifecycle. Craft well-structured, testable, efficient code that meets high standards. Guarantee the delivery of superior software that aligns with system specifications, quality benchmarks, and company guidelines. Contribute to comprehensive project and system documentation while producing technical documentation. Foster continuous improvement by exploring alternative technologies and presenting findings for architectural evaluation. Your Qualifications: Master's or Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline, or equivalent professional experience. A minimum of 4 years of demonstrable experience in the software development lifecycle utilizing Java. Proficiency in Web services, RESTful services, JSON, and XML. Experience with SQL databases (MySQL, PostgreSQL, etc.) and/or NoSQL databases (Cassandra, MongoDB, in-memory grids). Familiarity with application servers such as Wildfly, Thorntail, and/or Spring Boot is highly advantageous. What We Offer:We value talent and commitment. Here’s what you can expect when you join our team:Attractive full-time salary;Comprehensive Health Coverage through the company’s group program;Flexible Working Hours;Access to Cutting-edge Tools;Professional Development opportunities including language courses, specialized training, and ongoing learning;Career Progression: Collaborate with some of the most innovative specialists in the industry;A Dynamic Work Environment: Excel in a setting that promotes challenging goals, autonomy, and mentorship, facilitating both personal and organizational growth.If you are eager for a stimulating challenge, ready to work with cutting-edge technologies, and enjoy your craft, we encourage you to apply! Please submit your detailed CV in English, referencing: (SSE/02/26).Explore all our available positions by visiting our career section at www.eurodyn.com and connect with us on Twitter (@EURODYN_Careers) and LinkedIn.European Dynamics (www.eurodyn.com) is a prominent European company specializing in Software, Information, and Communication Technologies, operating on an international scale.

Feb 2, 2026
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company
Full-time|On-site|Athens, Attica, Greece

Join Our TeamAt OpenBet, we pride ourselves on being a premier global leader in betting and gaming entertainment. Trusted by over 200 partners worldwide, we are dedicated to creating unforgettable winning moments for millions of players. Our innovations have transformed the player experience, from processing bets during major events such as the FIFA World Cup and Super Bowl to developing cutting-edge products like BetBuilder. We are committed to delivering high-quality content and advanced player protection tools.For more than 25 years, our industry-leading platform has powered the most recognizable betting brands, ensuring peak performance with 100% uptime, unmatched scale, and speed. With 85 licenses and a team of over 1,200 experts across 14 countries, we continue to be at the forefront of the industry.Your MissionWhat You Will DoDevelop and enhance features for high-transaction, large-scale betting websites.Engage in design and code reviews to ensure quality and efficiency.Identify and resolve performance bottlenecks within the software.Create modular, scalable, and portable solutions.Contribute to the overall system architecture while designing components that align with our objectives.Work on full stack, end-to-end solutions.Collaborate with and learn from seasoned team members.Your ProfileWhat You BringIf you are the right candidate for this Software Engineer role, you will have:A minimum of 3 years of hands-on experience in designing and developing applications using Java Enterprise platforms, particularly in UNIX/Linux environments.Proficiency in the Spring framework (Spring Boot, Spring MVC).Strong understanding of Relational Databases, SQL, and ORM technologies such as JPA and Hibernate.Experience in developing distributed systems with a solid grasp of concepts like caching, interprocess communication, and brokering.Excellent communication skills, both written and verbal.Familiarity with microservices architecture and distributed systems.A quick ability to learn and adapt to new technologies.Experience with Test-Driven Development (TDD) and/or Behavior-Driven Development (BDD).Bonus QualificationsExperience developing applications on Unix/Linux.Familiarity with web technologies and internet protocols (REST APIs, JSON, XML, HTTP, TCP/IP).Experience with Maven and automated testing frameworks.Knowledge of third-party system integration.Familiarity with messaging systems such as Kafka and RabbitMQ.Experience with version control (Git), CI/CD tools (Jenkins, Bitbucket), and containerization technologies (Docker, Kubernetes).Knowledge of infrastructure-as-code tools (Terraform, Ansible).Experience with cloud services, preferably AWS.Scripting skills in Bash, Perl, Python, or JavaScript.

Feb 26, 2026
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companyNetcompany1 logo
Full-time|On-site|Athens

We are seeking a talented and experienced Database Engineer to join our dynamic team at Netcompany1. In this role, you will be responsible for designing, implementing, and maintaining robust database systems that support our innovative projects and applications. You will have the opportunity to work with cutting-edge technologies and collaborate with cross-functional teams to deliver high-quality solutions.

Jul 3, 2025
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companynetcompany1 logo
Full-time|On-site|Athens

Join our dynamic team at netcompany1 as a Mid-Senior Software Engineer specializing in Spring and Spring Boot. You will play a pivotal role in the design, development, and maintenance of innovative software solutions that drive our business forward. Your expertise will contribute to enhancing user experience and optimizing system performance.

Jul 3, 2025
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company
Java Android Software Engineer

Euronet Worldwide, Inc.

Full-time|Hybrid|Athens, Attica, Greece

Join Euronet, a pioneering force in the global payments processing sector, where we are committed to transforming the way the world manages its finances. Our innovative solutions, which include mobile wallets, card issuance, and real-time payment platforms, are reshaping digital transactions in over 160 countries.We are on the lookout for enthusiastic and skilled Java Android Software Engineers who are eager to contribute to our mission. You will be instrumental in developing and enhancing applications for our state-of-the-art payment terminals.Your Experience @EuronetAs part of the #Euronetter community, you will thrive in a culture that values human connections, trust, and collaboration. We prioritize your professional growth and recognize your contributions with ample career development opportunities.What We OfferCompetitive salary and benefits packagePerformance-based annual bonusesComprehensive Private Health InsuranceEmployee Stock Purchase PlanAccess to top-notch tools and technologiesFlexible hybrid work modelStructured career development and yearly performance evaluationsBonuses for employee referrals and community volunteeringA chance to work within a dynamic, stable, and international landscapeYour ImpactCreate and maintain Android applications for payment terminals utilizing reusable and reliable JAVA code.Work alongside cross-functional teams to gather requirements and convert them into technical specifications.Develop secure and efficient payment processing solutions.Identify and fix software defects, optimizing the performance of applications.Engage in code review processes.Leverage Git for version control and team collaboration.What Makes You Stand OutBachelor's degree in Information Technology or a related field.At least three (3) years of experience in software development with Java and Android.Familiarity with banking and financial systems is a plus.Solid understanding of software design principles and architectural patterns.Experience with secure coding practices.Proficient in Git for version control.Skilled in Android Studio for application development.Adept at applying Android UI design principles for user-friendly interfaces.Fluent in Greek and English, both written and spoken.Eligible to work in the EU on a full-time permanent basis without the need for employer sponsorship.Attributes for SuccessProactive, self-motivated, and capable of working independently as well as part of a team.Detail-oriented with a commitment to excellence.

Sep 17, 2025
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companyTrasys Greece logo
Contract|Hybrid|Athens, Attikí, Greece

Join Our Team as a Full-Stack Java Software Engineer!Core Values: Trust | Respect | Team SpiritOur Key to Success: Our dedicated team members who enhance our projects with their skills and integrity!Your daily tasks will encompass back-end development and testing of web applications utilizing the Java programming language (version 8 and above). Collaborate in a dynamic environment that fosters both professional growth and team collaboration.

Dec 20, 2022
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companynrb logo
Full-time|On-site|Athens, Attikí, Greece

Our Values: Trust | Respect | Team SpiritOur Secret: Our talented team members who make a difference through their integrity and expertise!Join Us as a Senior Full-Stack Software EngineerFull-time Contract | Athens, GreeceWe are seeking a highly motivated, adaptable, and detail-oriented Senior Software Engineer with a knack for crafting innovative features. As part of our dynamic team, you will design, develop, and test software solutions that cater to both business requirements and customer needs.Your Responsibilities Will Include:Developing robust, testable features using Angular (version 9 and above) and Java (version 8 and above);Implementing algorithms to tackle complex problems;Facilitating application delivery across various environments using CI/CD practices;Creating technical documentation and proof-of-concepts to guide design decisions;Mentoring and training fellow team members;Planning and executing technology upgrades.

May 11, 2021
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company
Full-time|Remote|Remote — Athens, Attica, Greece

Join our innovative team as a Senior Java Developer at accepted-ltd, where you will play a crucial role in designing and implementing robust software solutions. Your expertise in Java development will be essential as you collaborate with cross-functional teams to deliver high-quality products that meet our clients' needs.

Apr 8, 2026
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companyAgile Actors logo
Full-time|On-site|Athens, Attica, Greece

About UsAgile Actors is a dynamic tech company dedicated to enhancing and empowering technical teams for both international and local clients. Our distinct combination of coaching, ongoing education, and innovative practices fosters an environment where professionals not only contribute, but also thrive.When you join Agile Actors, you become part of diverse, agile teams working on cutting-edge solutions. Our talented professionals collaborate with global leaders in their fields, such as Austrian Post, Red Hat, and Swissquote, among others.We believe that work is more than a job; it should be a space where individuals flourish. Our recognition as a Great Place to Work 2026 underscores our commitment to nurturing an environment where talent, passion, and growth can prosper.Our Core ValuesPurpose-drivenAdventurous spiritAgilityRespect and EmpowermentAuthenticity and TrustEvolving alongside our clientsWho We’re Looking ForWe seek passionate tech professionals who possess a strong sense of purpose, curiosity, and a desire to make a genuine impact. If you view challenges as opportunities and thrive in collaborative environments, you will find your place with us.At Agile Actors, you will embrace adventure and adaptability, ready to implement innovative ideas in a fast-paced context. You will join one of our local teams in Athens, working alongside talented clients to deliver impactful solutions that shape the future of technology. As you engage with projects from global leaders, you will continuously evolve in a supportive environment built on trust, respect, and empowerment.

Jan 2, 2026
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companySleed logo
Full-time|On-site|Athens, Attica, Greece

Sleed is a distinguished web development and digital marketing agency with extensive experience in the industry. We are currently seeking a talented Mid/Senior .NET Software Engineer to enhance our dynamic team at our Tech Hub located at L. Athinon 100, Athens.The ideal candidate will play a pivotal role in the development, architectural design, and implementation of innovative software solutions and business projects. As part of our development team, you will collaborate closely with Project Managers to ensure all software projects align with client requirements and deadlines.Our team specializes in creating a diverse range of web applications, e-commerce platforms, websites, dashboards, and custom applications. We are looking for a professional who possesses solid experience in .NET Core development, particularly within e-commerce environments. Additionally, the Mid/Senior .NET Software Engineer will mentor junior developers, identifying their training needs and guiding their professional growth.In this role, you will also advise the organization on future technological advancements and opportunities, ensuring we remain on the cutting edge of technology.Your day-to-day responsibilities will include:Providing innovative solutions to technical challenges and project requirements.Contributing to performance profiling, troubleshooting, and resolving production issues.Collaborating with the project management team to define implementation strategies and providing accurate time and effort estimates.Consulting on process enhancements, tool improvements, and the adoption of new technologies.Designing, maintaining, and documenting APIs and application components.Integrating user-facing elements with server-side data.Ensuring the technical feasibility of UI/UX designs.Optimizing applications for speed and scalability.Adhering to secure coding practices to ensure application security and protection of sensitive data.Collaborating effectively with other team members and stakeholders.Supporting less experienced engineers through pair programming and knowledge sharing.Implementing automations for repetitive or complex administrative tasks.Delivering results in accordance with agreed timelines.Testing deliverables to ensure quality standards.

Feb 5, 2026
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companyFinartix logo
Full-time|On-site|Athens, Attica, Greece

Join the dynamic team at Finartix as a Senior Software Engineer specializing in .NET technologies. We are seeking a motivated and talented Backend Application Developer to contribute to our Software Engineering Practice. You will play an essential role in designing, implementing, and managing innovative technology-driven solutions that enhance our clients’ operational efficiency across various sectors. Key ResponsibilitiesEngage in the complete software development lifecycle including designing, testing, and maintaining bespoke applications.Adhere to established programming standards for naming conventions, security, performance, and ensure comprehensive code documentation.Act as a trusted technical advisor to clients, offering solutions tailored to their needs.Provide ongoing support to both business and IT users for existing applications.

Feb 19, 2026
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companyagileactors logo
Full-time|On-site|Athens, Attica, Greece

Join agileactors as a Senior Software Engineer in Test, where you will play a pivotal role in ensuring the quality of our software products. You will leverage your expertise in testing methodologies and software development to design and implement automated tests, contributing to our commitment to excellence and innovation.

Mar 31, 2026
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companyNetcompany1 logo
Full-time|On-site|Athens

Join our dynamic team at Netcompany1 as a Mid-Senior SQL Developer. In this role, you will leverage your expertise in SQL to design, implement, and optimize database solutions that drive business performance. If you are passionate about data and enjoy solving complex problems, we want to hear from you!

Jul 3, 2025
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company
Junior Java Developer

EUROPEAN DYNAMICS

Full-time|Remote|Remote — Athens, Attica, Greece

Are you an enthusiastic Junior Java Developer eager to become a key player in a vibrant team? Join us in Athens or work remotely, collaborating with our innovative software development unit on exciting IT initiatives for prominent international public sector organizations.Your Responsibilities: Create web and back-end applications utilizing cutting-edge software development methodologies and technologies; Engage in software architecture design and contribute valuable insights; Operate within a diverse, multi-national team environment. Essential Qualifications: Bachelor's Degree in Information Technology, Computer Science, or Software Engineering; Proficiency in Java programming; Familiarity with database systems and SQL. Preferred Qualifications:Experience with technologies such as Git, Maven, Python, or Spring Framework will be advantageous.Perks of Joining Our Team:At EUROPEAN DYNAMICS, we value and reward talent and commitment. Here are some benefits you can expect:Attractive full-time salary;Comprehensive Private Health Coverage under the Company’s group program;Flexible Working Hours to suit your lifestyle;Access to top-tier tools and technologies;Opportunities for Professional Development, including language courses, specialized training, and continuous learning;Career Advancement: Collaborate with some of the most forward-thinking specialists in the industry;A Dynamic Work Environment that encourages challenging goals, autonomy, and mentorship, promoting both personal and organizational growth.If you're ready for an exciting challenge, eager to work with innovative technologies, and want to enjoy the process, we invite you to apply! Submit your detailed CV in English, referencing: (JJP/02/26).Explore our other open positions by visiting our careers page at www.eurodyn.com and follow us on Twitter (@EURODYN_Careers) and LinkedIn.

Feb 2, 2026
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companySpeechify logo
Full-time|On-site|Athens, Greece

Role overview Speechify seeks a Senior Software Engineer to strengthen the core user experiences in its products. The position involves shaping the way people interact with Speechify’s tools by designing, building, and maintaining software that sits at the heart of the user journey. Key responsibilities Collaborate with teams from different functions to define and refine product features Create and maintain software aimed at improving the overall user experience Use advanced engineering expertise to guide projects from initial concept through to launch Ensure each deliverable meets a high standard of quality Location This role is based in Athens, Greece.

Apr 25, 2026

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