Senior Java Software Developer (Olympus)


Vonage Engineering Mission:
Vonage London is the emerging leader in the $100B+ cloud communications platform (CPaaS) market. Customers like Airbnb, Viber, Whatsapp, Snapchat, and many others depend on our APIs and SDKs to connect with their customers all over the world. As businesses continue to shift to a real-time, customer-centric communications model, we are experiencing a time of impressive growth.

Why this role matters: The Engineering team at Vonage is a fast growing group of talented engineers. Senior Java Software Developers here face multiple challenges associated with high performance, distributed systems, and processing large volumes of data in real time.

Our developers work on an exciting mix of both greenfield and existing projects, giving them an opportunity to explore new technologies.

What you will do:

  • Create scalable microservices that will help support our impressive growth
  • Propose scalable, maintainable and cost effective solutions
  • Estimate the effort required to develop and implement new features
  • Develop and execute effective testing strategies, including unit tests, integration tests, and end-to-end tests, to ensure software quality and reliability
  • Stay up-to-date with industry trends, best practices, and emerging frontend technologies, and share knowledge and expertise with the development team to continuously improve our development processes and standards
  • Participate in code reviews, provide constructive feedback to peers, and actively contribute to maintaining a high standard of code quality and development practices
  • Contribute to the documentation of the components, design patterns, and the design system to facilitate knowledge sharing and onboarding of new team members
  • Provide mentorship and guidance to junior team members, assisting them in their technical growth, professional development, and project assignments

What you will bring:

  • Excellent software engineering skills in Java or Kotlin for backend services
  • Work closely with cross-functional teams such as Development, Operations, and Product Management to ensure seamless integration of new features and services with a focus on reliability, scalability, and performance
  • Effective communication skills, both verbal and written, with the ability to collaborate with multidisciplinary teams and articulate complex technical concepts to non-technical stakeholders.
  • A strong focus on testing
  • An understanding of Object Oriented Design and standard design patterns
  • Strong experience of multi-threaded, 3-tier architectures, web services, caching, and dealing with event-driven pipelines
  • Willingness to learn and use different technologies/programming languages
  • Experience working with public cloud. AWS would be advantageous
  • Experience with SQL and NoSQL databases
  • Practical experience of deploying code in a modern programming environment using tools such as Docker and Kubernetes

Our Stack

  • Microservices architecture
  • Java and Kotlin with Spring Boot Reactive
  • AWS (Lambda, SQS, S3, DynamoDB)
  • Kafka
  • Docker, Kubernetes
  • Grafana, Prometheus, ELK stack
  • Anything needed to achieve our goals


Please note: This position is offered on an employee contract, we are expecting from candidate to visit our London office.

We encourage you to apply, even if you don’t meet all of the requirements. We value your growth potential and enthusiasm!

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