Senior API Engineer

## Join Us At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact. ## What you’ll do As a Senior API Engineer, you will work in a team of REST API engineers, closely with the Engineering Manager, to design and implement Vodafone’s high-volume, high-impact microservices. You will apply an agile mindset and iterative ways of working within the engineering team. You will bring advanced, hands-on AI engineering skills to modernise applications through AI-enabled analysis, design, development and testing, while maintaining technical quality, security and human oversight. More specifically you will: • Take technical ownership of REST API and microservice solutions guiding iterative delivery, resolving dependencies and ensuring scalable, reliable outcomes. • Translate requirements into low-level technical designs, providing clear direction for implementation and testing. • Apply advanced generative AI and agentic engineering workflows to understand, redesign and rebuild core IT applications, validating generated code and preserving functional integrity. • Coach fellow API engineers through design and code reviews, sharing expertise and strengthening technical judgement and engineering practices. • Partner with the Engineering Manager to uphold technical standards, security and delivery quality, surfacing risks and ensuring appropriate oversight of AI-enabled development. • Help shape the domain’s technical roadmap by identifying modernisation opportunities and improvements to architecture, platforms and tooling that build long-term engineering capability. ## Who you are Bachelor's degree in Computer Science or Engineering or other related field. • 4-6 years of experience in design and development of RESTful APIs using cloud-friendly technologies like Quarkus, Spring Boot, or any other JVM-based technology. • Demonstrated ability to use AI-enabled workflows to understand existing codebases, produce technical specifications, rebuild or refactor applications, and generate and validate automated tests. • Ability to design and integrate AI-assisted or agentic engineering workflows into the software development lifecycle, with clear evaluation criteria, human review and secure handling of code and data. • Strong understanding of secure software delivery, cloud-native architectures and engineering quality controls, with the judgement to identify and correct inaccurate or unsafe AI-generated outputs. • Deep understanding of RESTful principles (WSDL understanding is a plus but not required). • Familiarity with tools like PostgreSQL, Apache Kafka, RabbitMQ, Drools, Apache Camel will be highly appreciated • Experience applying an agile mindset and iterative ways of working within an engineering team, including incremental delivery, feedback, knowledge sharing and continuous improvement. • Excellent written and verbal communication skills, in both Greek & English and with both technical and business audiences • Fulfilled military services (for male candidates) ## Not a perfect fit? Worried that you don’t meet all the desired criteria exactly? At Vodafone we are passionate about empowering people and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to still apply as you may be the right candidate for this role or another opportunity. ## What's in it for you * Award-winning work environment -certified #1 Top Employer in Greece * Competitive pay, bonus & remuneration package * Private Health & Medical Insurance * Hybrid way of working: a blend of remote and office-based working, including the option to work from abroad * Unlimited connectivity with our mobile, landline and Vodafone TV services – Experience first what our customers love * Unlimited access to learning resources and trainings * Vodafone Parental Leave: 16 weeks of fully paid parental leave to all employees regardless of gender, sexual orientation or length of service * Remote work equipment to help you create a comfortable, ergonomic workspace at home * Spirit of Vodafone days: dedicated time to pause, develop new skills and connect with our teams, values and services * Extra days off: Vodafone Day, Family Day, Volunteering Day * Office amenities (subject to the office location): such as restaurant, beauty corner, gym and parking * Special employee offers and discounts “In accordance with applicable pay transparency legislation as of 1/11/2026, candidates will be informed, within a reasonable period before their first interview, of the initial remuneration for the position for which they have applied, as determined on the basis of objective and gender-neutral criteria.'' #Vodafonespirit #Togetherwecan ## Who we are We are a leading international Telco, serving millions of customers. At Vodafone, we believe that connectivity is a force for good. If we use it for the things that really matter, it can improve people's lives and the world around us. Through our technology we empower people, connecting everyone regardless of who they are or where they live and we protect the planet, whilst helping our customers do the same. Belonging at Vodafone isn't a concept; it's lived, breathed, and cultivated through everything we do. You'll be part of a global and diverse community, with many different minds, abilities, backgrounds and cultures. ;We're committed to increase diversity, ensure equal representation, and make Vodafone a place everyone feels safe, valued and included. If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, please refer to https://careers.vodafone.com/application-adjustments/ for guidance. Together we can.