Senior API Engineer

Vodafone; Ohio; Hybrid; USD 67,000 - 100,000; Full time

Benefits offered by this job

Health insurance

Hybrid work model

Learning resources

Parental leave

Employee discounts

Office amenities

Job summary

Vodafone is seeking an SR API Engineer to design and implement high-volume microservices for mobile and web applications. You will work in an agile team on JVM-based services, ensuring scalability and performance.

Collaborate across departments to translate requirements into technical stories, review code, and help advance Docker/Kubernetes infrastructure while supporting learning and inclusion across the organization.

Qualifications

• Bachelor's degree in Computer Science, Engineering or related field.
• 3–5 years of RESTful API design & development with JVM-based tech (Quarkus, Spring Boot).
• Strong understanding of REST principles; WSDL knowledge is a plus.
• Familiarity with MongoDB and distributed systems/SOA.
• Experience in Agile environments and team collaboration.

Responsibilities

• Design and implement high-volume JVM-based microservices for mobile/web apps.
• Develop scalable RESTful APIs using RESTful principles.
• Improve Docker/Kubernetes/JVM infrastructure to enhance performance and reliability.
• Collaborate with cross-functional teams to translate requirements into technical user stories.
• Participate in code reviews and maintain quality throughout development lifecycle.
• Contribute to in-house tooling to improve developer efficiency and happiness.
• Ensure technical integrity and align with business strategy.

Skills

REST APIs

Java/JVM

Microservices

Cloud readiness

SOA

Education

Bachelor's degree in CS/Engineering

Tools

Quarkus

Spring Boot

Docker

Kubernetes

MongoDB

Job description

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

Being part of an agile team, the SR API Engineer contributes to designing and implementing Vodafone’s high volume and high impact microservices for mobile/web applications.

• Work as part of a team and develop highly performant microservices based on the JVM
• Develop scalable solutions - use the latest in Tech to handle large traffic spikes and millions of REST calls per microservice per day
• Improve the core Vodafone infrastructure (Docker, Kubernetes, Java) to deliver value to technical business and improve the Cluster Health
• Contribute, as member of an agile team, in the research, analysis, design development and testing of solutions that best suit business and technology strategy
• Contribute to the development of in-house tools to facilitate development and maximize developer happiness
• Ensure technical integrity and quality control consistency throughout the development life cycle
• Participate in code reviews and promulgate knowledge
• Transform functional requirements to technical user stories and assign business value
• Collaborate with mobile and web development teams to develop features from conception to launch
• Help in removing technical impediments raised by team

Who you are

• Bachelor's degree in Computer Science or Engineering or other related field
• At least 3-5 years of experience in design and development of RESTful APIs using a cloud-friendly technology like Quarkus, Spring Boot, or any other JVM-based technology
• Have a deep understanding of RESTful principles (WSDL understanding is a plus, but not required)
• Familiarity with Document Storages (like MongoDB) will be highly appreciated
• Have a grasp of Service-Oriented Architectures (SOA), Microservices, and distributed systems
• Ability to grasp Software Engineering concepts at scale
• Be able to work in a fast-moving team which values communication & team spirit
• Demonstrated experience in problem solving, self-motivated and self-managing with strong interpersonal skills
• Excellent written and verbal communication skills, in both Greek & English and with both technical and business audiences
• Open-source contributions will be considered a plus
• Working experience in agile environments/teams will be highly appreciated

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 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
• Spirit of Vodafone Day: one day each quarter dedicated to your personal development
• 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.

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.