Senior Backend Developer jobs in Athens – Browse 345 openings on RoboApply Jobs

Senior Backend Developer jobs in Athens

Open roles matching “Senior Backend Developer” with location signals for Athens. 345 active listings on RoboApply Jobs.

345 jobs found

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IKH logoIKH logo
Full-time|Hybrid|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 skille…

Jan 26, 2026
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Kaizen Gaming logoKaizen Gaming logo
Remote|Remote|Remote

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 development of scalable systems, turning complex requirements into elegant technological solutions.

Feb 4, 2026
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Kiefer Tech logoKiefer Tech logo
Full-time|On-site|Athens

Join Kiefer Tech, a pioneering force in the technology sector, where we harness over 12 years of engineering expertise from the Green Energy domain to craft innovative AI, robotics, and enterprise solutions throughout Greece and the EU. Our mission is to construct sovereign AI infrastructure that upholds data privacy within EU borders while driving substantial business outcomes. We are committed to our values of innovation, quality, and sustainable partnerships with clients, which empower us to develop cutting-edge AI infrastructure, including the first authentic Greek Large Language Models and intelligent automation solutions that help organizations flourish.Collaborating with NVIDIA, we merge our sustainable infrastructure knowledge with top-tier AI technology, fostering an ecosystem that drives innovation and augments Greece’s technological independence. Join our team to help shape the AI-driven future.Technology Stack: Python (FastAPI) and TypeScript (Node.js) microservices deployed on Kubernetes, supported by PostgreSQL, Redis, and AWS.Role Overview: As a Senior Backend Engineer within the Sophea platform team, you will be pivotal in defining the architecture for enterprise-grade AI products. Your contributions will enhance system reliability and empower engineering teams to deploy faster and with greater confidence. You will enjoy significant technical autonomy, focusing on innovation rather than maintenance.

Apr 8, 2026
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Skroutz logoSkroutz logo
Full-time|On-site|Athens, Attica, Greece

Join Skroutz, where our mission is to deliver extraordinary experiences. Since our inception in 2005, we have believed that satisfied customers lead to satisfied merchants, driving us to understand and fulfill their needs while providing a seamless shopping journey.Our ambition is to transform into the Everyday App, the preferred platform for millions to meet their online shopping requirements. From the latest smartphone to essential pantry items, stylish outfits, or collectible gaming consoles, Skroutz is your reliable partner for effortless shopping.With aspirations that extend beyond Greece, we are on the path to becoming one of Europe's fastest-growing Marketplaces, with exciting ventures underway in Cyprus and the Balkans. Our commitment to customer satisfaction shapes every decision we make.We are looking for passionate individuals who thrive in the intersection of e-commerce and technology. If your drive is to create remarkable shopping experiences for users while enabling sellers globally to thrive, we want you on our team.At Skroutz, be a part of a transformative journey that redefines online shopping. Together, let’s turn everyday moments into exceptional experiences.Are you ready for the challenge?#AimToAmazeOur Engineering ValuesMaster your craft and take pride in your work.Deliver early and iterate based on feedback.Collaborate and be proactive within your team.Avoid over-engineering and focus on simplicity.Enjoy the process and celebrate achievements.Technologies We UseOur primary stack includes Ruby for backend development, utilizing the Ruby on Rails framework, alongside Javascript (ES6) and React/Redux for frontend. We leverage a MariaDB cluster for storage, with extensive use of Elasticsearch, Kafka, MongoDB, Redis, and Memcached. Jenkins is our go-to for CI, and we utilize tools like Sentry, DataDog, and Grafana for monitoring purposes. We consistently seek the most effective tools tailored to our needs. Discover more about our projects on our Engineering blog.Your Contribution to Skroutz's VisionWe are searching for Senior Backend Software Engineers with a robust technical background...

Jan 7, 2026
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European Dynamics logo
Full-time|Remote|Remote — Athens, Attica, Greece

Join our team as a Senior Backend Engineer (Python) and engage in a challenging project that focuses on data-intensive processing, system integration, and semantic technologies. In this pivotal role, you will take charge of an established codebase, enhancing its stability and evolving it to meet the project’s demands. This position is perfect for seasoned engineers who thrive in working with complex systems and have a solid grasp of data-driven architectures.Key Responsibilities:Thoroughly analyze and take ownership of an existing Python-based backend.Refactor and optimize backend components with an emphasis on maintainability and performance.Develop and sustain data processing pipelines and integration workflows.Collaborate closely with data and semantic engineers on RDF/SPARQL-driven processes.Contribute to the architectural redesign and technical documentation.Assist with deployment, configuration, and troubleshooting tasks.Ensure high code quality through rigorous reviews, testing, and adherence to best practices.Requirements:A minimum of 3 years of professional experience in backend development.Expertise in Python programming.Experience with:Apache Airflow and AWS.Data-intensive or integration-heavy systems.APIs, batch processing, and backend services.Configuration-driven systems (XML / JSON / YAML).Strong understanding of:Software architecture and design patterns.Debugging and maintaining legacy codebases.Proven experience in complex, multi-stakeholder projects (experience in EU or public-sector projects is a plus).Preferred Qualifications:Familiarity with Semantic Web technologies (RDF, SPARQL, OWL).Experience in data modeling or knowledge-based systems.Exposure to DevOps practices (CI/CD, containerization).Experience in contributing to or maintaining technical documentation (e.g., AsciiDoc, Antora).Benefits:We value talent and commitment, offering the following perks:Attractive full-time salary.Private health insurance under the company’s group plan.Flexible working hours.Access to top-quality tools.Opportunities for professional development, including language courses and specialized training.Career advancement potential by collaborating with leading specialists in the field.A dynamic work environment that encourages personal and professional growth.If you're ready for an exciting challenge, we would love to hear from you!

Feb 2, 2026
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Netcompany logoNetcompany logo
Full-time|On-site|Athens

Curious about the experience of being a .NET Developer (Mid-Senior) at Netcompany? Join our high-performing engineering team to deliver enterprise-level digital solutions.In this pivotal role, you will design and develop scalable applications while collaborating closely with senior engineers, architects, and product stakeholders. This position is perfect for developers who possess robust backend development experience and aspire to deepen their technical skills while making significant contributions to large-scale systems.Your work will focus on complex enterprise platforms where quality, maintainability, and performance are paramount. You will take ownership of technical tasks, engage in architectural discussions, and uphold high engineering standards across the team.As a .NET Developer (Mid-Senior), your responsibilities will include:Crafting, developing, and maintaining scalable and secure enterprise applications utilizing .NET / C#.Implementing and maintaining RESTful APIs, ensuring optimal performance, reliability, and security.Translating business requirements into well-structured and maintainable technical solutions.Writing clean, testable, and reusable code that adheres to best practices and coding standards.Engaging in architectural discussions and technical design reviews.Collaborating with senior developers and architects on system design and enhancements.Conducting code reviews and contributing to the improvement of team coding standards.Working closely with product owners, QA engineers, and other stakeholders.Participating in Agile/Scrum ceremonies, sprint planning, and estimations.Contributing to testing strategies, CI/CD processes, and application performance enhancements.

Mar 9, 2026
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Welcome Pickups logoWelcome Pickups logo
Full-time|On-site|Athens, Attica, Greece

Join Our Journey at Welcome!Established in 2015 in Athens, Greece, Welcome is revolutionizing travel experiences by offering more than just a transfer service. We are pioneers in delivering a comprehensive and personalized journey for travelers from their arrival to their departure. Welcome Pickups caters to every travel need, providing seamless transfers, engaging sightseeing tours, and invaluable local insights in the most user-friendly and personalized manner. Our drivers are not just transporters; they are local experts who enhance travelers' experiences, making them feel at home no matter where they are. Our commitment to safety is paramount, featuring contactless rides, stringent cleaning protocols, and protective equipment for every journey.As a rapidly growing travel tech startup, Welcome is quickly establishing itself as a global leader in in-destination travel services.Rated 4.9/5 stars, we are among the highest-rated global transportation companies.We service over 300 destinations with plans to expand to 350 by 2024.Our network includes over 4,000 travel partners, including 2,500 hotels and numerous vacation rentals, welcoming over 50 new partners each month.We delight over 2.5 million travelers annually.⭐ Dive deeper into the culture of Welcome by visiting our TikTok account.⭐About Our TeamOur team is a vibrant mix of diverse individuals passionate about travel and dedicated to quality. Each member is committed to Welcome's vision and works tirelessly to achieve it. We think outside the box, prioritize design and usability, and strive to create unforgettable experiences. We are committed to continuous learning and personal and professional growth while maintaining a humble, 'pay it forward' mindset and ambitious goals.Role OverviewAs a Backend Software Engineer, you will play a pivotal role in transforming our vision into tangible products. Your contributions will directly impact the travel experience for users, drivers, and partners. You will be responsible for enhancing our tech infrastructure and optimizing the code that powers our production servers, ensuring a flawless user experience.In the past 18 months, our full-stack approach has yielded remarkable results. Our engineers focus primarily on back-end development, working on logic, APIs, and databases, while also having the capability to build functional UI using React.

Jan 27, 2026
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Interweave logoInterweave logo
Full-time|On-site|Athens, Attica, Greece

Join Interweave as a Senior WordPress Developer and play a pivotal role in shaping digital experiences across various platforms and channels, including products, websites, mobile apps, and marketing campaigns. You will work alongside a dynamic team of strategists, marketers, information architects, UX designers, and copywriters to create outstanding online brand experiences.We are passionate about leveraging WordPress to drive business transformation, and we are eager to welcome a skilled Senior WordPress Developer to our team. Your expertise will help us continue delivering exceptional websites and applications that exceed our clients' expectations.The ideal candidate will possess a robust portfolio showcasing their expertise in front-end development and a passion for exploring and implementing cutting-edge technologies. You should be well-versed in software development methodologies while demonstrating flexibility to thrive in an agency environment.Mindset:We are looking for someone who: Is passionate about their craft Maintains a positive attitude and approaches challenges with a solution-oriented mindset Exhibits a balance of critical thinking and proactive execution Collaborates effectively in a team setting, sharing knowledge and expertise Seeks personal and professional growth to enhance the quality of their work Stays current with the latest technological innovations and trends Embodies honesty and a sense of fun Demonstrates meticulous attention to detail About UsINTERWEAVE: Rebels in Business - Consulting | Creative | Technology At Interweave, we are an innovation-driven company with technology and insights at our core. Our mission is to drive transformative change.We bring together strategy consultants, innovators, and creative makers to break down silos and blend disciplines with industry expertise and entrepreneurial spirit. Serving as your partner for change and growth, we operate globally from offices in London, Athens, and the UAE, and have received over 50 global awards for our projects across more than 40 countries. Campaign UK has recognized us as one of the Top 11 World's Independent Agencies, and our CEO has been honored as one of the Top 10 CEOs and Leaders in the UK, earning a spot on the prestigious BIMA100 list. We are proud members of WPI, a global network comprising 120 offices across 48 countries.About our Technology Team: By joining our IW Lab, you will engage in developing and executing projects that span various platforms and channels, including products, platforms, websites, mobile apps, web applications, and campaign landing pages. Collaborating with technologists, developers, UX/UI designers, information architects, product managers, creatives, strategists, marketers, and copywriters, you will contribute to building exceptional products and online brand experiences.

Jan 19, 2026
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Betsson Group logoBetsson Group logo
Full-time|On-site|Athens

Join our dynamic team as a Senior Android Developer at Betsson Group!What We SeekCollaborate with top industry talents.Develop high-traffic applications for a global audience.Take pride in your contributions and our shared success.Enjoy a supportive atmosphere with professional growth opportunities.Become part of our diverse Betsson community.Preferred QualificationsProficient in Kotlin and experienced with Android's frameworks and native capabilities.Familiarity with Firebase and its suite of tools, including analytics and messaging services.Strong analytical skills with experience in app tracking and data-driven decision-making.Experience with RESTful APIs and tools like Postman.Knowledge of GitHub pipeline setups.Ability to create high-quality Android user interfaces and animations.Expertise in developing scalable and high-performance applications.Skilled in writing clean, maintainable code with unit testing experience.Strong problem-solving skills and understanding of software architecture.Team player mentality with a collaborative approach.Experience in Agile development methodologies.Willingness to mentor and guide junior developers.Your RoleAs a Senior Android Developer, you'll be pivotal in driving our product innovation in a competitive landscape, utilizing cutting-edge technologies to build new features and products that support our core brands. You will work within a self-managing Agile team, overseeing everything from DevOps pipelines to production support. Collaborating closely with UX designers, QA engineers, and data analysts, you'll contribute to discussions that shape our products and enhance customer value.

Feb 18, 2026
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FINARTIX logoFINARTIX logo
Full-time|On-site|Athens, Attica, Greece

Join the dynamic team at FINARTIX as a passionate Backend Application Developer. Contribute to innovative projects across various sectors, playing a vital role in developing, implementing, and managing technology-driven business solutions that enhance our clients' delivery approaches. Key Responsibilities Engage in the complete software development lifecycle, including the implementation, testing, and maintenance of custom applications. Adhere to established standards for programming, security, and performance while ensuring thorough code documentation. Act as a technical consultant to clients, providing expert advice and support. Assist both business and IT users with existing applications to ensure optimal performance. QualificationsBachelor's or Master's degree in Computer Science, Engineering, or a related field is required.A minimum of 3 years of experience in Software Engineering.Strong proficiency in Backend Engineering with the .Net Framework.Hands-on experience with various database technologies, including SQL, NoSQL, and Vector.Familiarity with Web Services (SOAP/REST) and Application Servers (IIS).Understanding of system frameworks such as Git and Azure DevOps (ADO), as well as container technologies like Docker or Kubernetes.Previous experience in Infrastructure Architecture and support is a plus.Cloud Services certification (AWS, Azure, GCP) is an added advantage.Exceptional programming skills and a creative approach to problem-solving.Excellent communication and time management skills.Proficient in both English and Greek, with strong written and verbal capabilities.BenefitsProfessional development through engaging, real-world projects across diverse industries.Work within a rapidly-growing technology company with esteemed partners.Opportunity to collaborate with talented colleagues in a diverse environment.Competitive salary package.Comprehensive private health insurance.Access to training and development opportunities.Company laptop provided.Flexible work environment.

Feb 19, 2026
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Finartix logoFinartix 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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Accepted Ltd. logo
Full-time|Hybrid|Athens, Attica, Greece

Working Model: Hybrid | Type: Full-timeAbout Accepted: We are a forward-thinking software and digital transformation company dedicated to empowering our clients across various sectors including Finance, Energy, Gaming, and Telecommunications. With over 20 years of expertise in engineering excellence, we pride ourselves on delivering innovative, outcome-driven solutions and building high-performing teams that integrate seamlessly with our clients.We invite you to join us as a Senior .NET Developer to enhance our hybrid delivery teams.Key ResponsibilitiesDeveloping high-quality web and API applications utilizing C# and .NET Core.Participating in the technical design of systems and exploring new tools and technologies.Integrating third-party APIs into our applications.Understanding and implementing RESTful APIs and the HTTP protocol.Managing efficient MS SQL databases.Engaging in team code reviews to ensure quality standards.

Jan 28, 2026
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European Dynamics logo
Senior .NET Developer

European Dynamics

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

Are you an enthusiastic and skilled Senior .NET Developer seeking your next career opportunity? Join our team at European Dynamics, where you can work remotely from Athens, Crete, or Thessaloniki, and engage in exciting IT software projects for prestigious international public organizations.Your Responsibilities: Develop and maintain sophisticated web-based applications using .NET and .NET Core; Engage in all phases of the software development lifecycle, including design, implementation, testing, documentation, and maintenance of system components; Collaborate with a diverse team in a multinational setting, maintaining high standards of professionalism; Deliver high-quality software solutions. Essential Qualifications: Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field; Demonstrated analytical skills, team-oriented mindset, and a passion for learning and excelling; Deep understanding of Software Engineering principles; Extensive knowledge of .NET/.NET Core, web technologies, and database management; Proficiency in C# programming; Familiarity with JavaScript and TypeScript; Fluent in English, both spoken and written; Strong expertise in ASP.NET Core, MVC, unit testing, Entity Framework Core, MS SQL Server, REST Web Services, Visual Studio, Azure DevOps, and Git. Preferred Qualifications: Experience with .NET 5 or 6, Angular or React, Azure or Kendo UI, Office 365/SharePoint, MS Azure, SOA Architecture, Event Driven Architecture, or Microservices is highly valued; Relevant Microsoft Certifications are an advantage. Why Join Us?At European Dynamics, we value talent and dedication. Here’s what you can look forward to:Attractive full-time salary;Comprehensive private health coverage through the company’s group program;Flexible working hours;Access to cutting-edge tools;Opportunities for professional development, including language courses and specialized training;Career advancement with a team of innovative and experienced specialists;A dynamic work environment that offers challenging goals, autonomy, and mentorship, fostering both personal and organizational growth.If you are eager for an exciting challenge and want to work with advanced technologies, we invite you to submit your comprehensive CV in English, referencing: SND/02/26.Explore all our current job openings by visiting our careers page: www.eurodyn.com.

Feb 2, 2026
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Satori Analytics logo
Full-time|On-site|Athens, Attica, Greece

Are you excited about the power of Artificial Intelligence? At Satori Analytics, we are dedicated to transforming industries through innovative Data & AI solutions. Our mission is to empower global brands by providing unparalleled clarity and insights, utilizing cutting-edge technologies. Our diverse range of services spans from developing cloud-based ecosystems for fintech to creating predictive models for the airline industry, covering the entire data lifecycle—from data ingestion to AI implementation.As a rapidly expanding scale-up, our talented team of over 100 professionals—including Data Engineers, Data Scientists, and other tech experts—delivers pioneering analytics solutions for various sectors, including FMCG, retail, manufacturing, and financial services. Join us as we spearhead the data revolution in South-Eastern Europe and beyond!Ready to collaborate with one of Greece's largest energy companies?Your Daily Responsibilities:Design, construct, and maintain backend services that address real-world business challenges, guiding projects from concept to production.Engage in the complete software development lifecycle—from gathering requirements to deploying and managing systems in a live environment.Monitor, diagnose, and enhance production systems and cloud infrastructure utilizing observability tools.Work closely with product teams and stakeholders to translate business requirements into precise, actionable technical solutions.

Jan 26, 2026
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ATCOM S.A. logoATCOM S.A. logo
Full-time|Remote|Remote — Athens, Attica, Greece

ATCOM S.A. leads the web development industry in Greece, delivering a wide range of large-scale web projects and solutions across various sectors, including e-commerce, travel, intranets, news portals, and other significant web applications for both the private and public sectors. As the largest web development company in Greece, we truly value every team member who contributes to our success. We believe in empowering our teams and individuals, which is why we seek passionate, self-motivated professionals who strive to accomplish their goals independently. We want you to love what you do and create exceptional web solutions.As our products are built on Microsoft technologies, we are in search of a talented and highly productive Senior .NET/C# Web Developer to join our skilled team. Here, you will have the opportunity to work on some of the most exciting and challenging web projects in Greece. We thrive in a fast-paced, dynamic environment and utilize cutting-edge web technologies to achieve outstanding results.

Feb 19, 2026
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Netcompany logoNetcompany logo
Full-time|On-site|Athens

Join the cutting edge of technology as a Mid-Senior React Developer at Netcompany!As a vital member of our agile teams, you will engage in large-scale transformation projects that positively impact millions of EU citizens. Your contributions will be crucial in shaping innovative solutions that drive forward digitalisation in Europe.In this role, you will:Work collaboratively with the development team to define and execute the strategic direction of front-end development, ensuring alignment with business objectives.Mentor and support junior developers, fostering a culture of continuous improvement and knowledge sharing within the team.Design and build high-performance, scalable web applications aimed at enhancing user experience.Collaborate closely with project managers to gather requirements and set realistic timelines for project deliverables.Promote the adoption of modern development practices and tools, contributing to a culture of best practices that enhance team efficiency.Troubleshoot and resolve intricate technical challenges, providing innovative solutions to boost product performance.Ensure timely delivery of project milestones while upholding high-quality standards.Engage in technical decision-making processes, influencing the direction of future projects.

Mar 11, 2026
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accepted-ltd logo
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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Netcompany logoNetcompany logo
Full-time|On-site|Athens

Have you ever imagined being a .NET Developer (Senior-Lead) at Netcompany? Join our team and be part of a dynamic group dedicated to driving enterprise-level digital transformation.Your role extends beyond just coding; it’s about architecting scalable solutions, setting the technical direction, and delivering impactful results.In this position, you will engage with complex, mission-critical systems where performance, maintainability, and architectural integrity are paramount. As a senior member of the team, you will lead by example, mentor junior developers, and maintain high standards of technical excellence.Key Responsibilities:Oversee the design and development of scalable, secure, and high-performance enterprise applications.Convert complex business needs into robust, future-proof technical architectures.Produce clean, reusable, and well-documented code that adheres to best practices.Participate in and evaluate architectural decisions and technical design processes.Guide and mentor mid-level and junior developers.Conduct code reviews to uphold high coding standards.Collaborate with architects, product owners, and vital stakeholders.Engage actively in Agile/Scrum ceremonies, estimations, and planning sessions.Ensure quality delivery through testing strategies, CI/CD pipelines, and performance enhancements.

Mar 4, 2026
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Netcompany1 logoNetcompany1 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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netcompany1 logonetcompany1 logo
Full-time|On-site|Athens

We are seeking a highly skilled Senior-Lead SAP ABAP Developer to join our dynamic team at netcompany1. In this role, you will leverage your extensive knowledge and experience in SAP ABAP to lead development projects, mentor junior developers, and collaborate on innovative solutions that drive business success.

Sep 29, 2025

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