Java Senior Developer - Core Services
Location: London, UK
Employment Type: Full-time
Work Model: Hybrid
About the Role
The Senior Developer, Core Services role is focused on building and supporting highly scalable backend systems for live and Video on Demand streaming services. The developer will work primarily with Java and Spring, developing end-user applications and scalable APIs while contributing to technical direction, architecture/design decisions, production support, system reliability, and continuous improvement.
The role also requires ownership of functional and non-functional quality, particularly security, resiliency, and performance, along with strong collaboration across development, architecture, and other teams.
In this role, you will:
- Develop and maintain components using Java and Spring, covering new features, fixes, enhancements, and existing functionality.
- Build well-tested, robust and reliable code, including handling edge cases and usability considerations
- Identify production/code issues and use appropriate debugging techniques and tools for resolution.
- Support non-functional testing, including performance, resiliency, and security considerations.
- Maintain and support AWS infrastructure, Kubernetes deployments, AWS Keyspaces, Redis and Kafka.
- Review peer code and ensure adherence to coding standards and engineering best practices.
- Propose technical solutions and make design decisions for complex, scalable systems.
- Collaborate with developers, architects, and analysts to understand requirements and deliver solutions.
- Participate in stand-ups and other Agile/team ceremonies and contribute to continuous improvement.
What You Need to Have to Be Considered
The ideal candidate will have strong experience in backend software engineering and cloud-native application development, with expertise in the following areas:
- Strong hands-on experience in Java and Spring Framework development.
- Proven experience building web applications and RESTful APIs.
- Solid understanding of event-driven architectures, including Kafka, asynchronous messaging, and distributed systems.
- Experience working with AWS and AWS-native cloud services.
- Strong knowledge of database and persistence technologies such as Cassandra/AWS Keyspaces, Redis, and PostgreSQL/DSQL.
- Experience with containerization and orchestration technologies, including Docker and Kubernetes.
- Hands-on experience with CI/CD pipelines, particularly using GitHub Actions and modern software delivery practices.
- Experience with automated testing frameworks and a good understanding of non-functional requirements such as performance, scalability, security, and reliability.
- Proficiency with Unix/Linux environments and Bash scripting.
- Experience designing and implementing scalable, resilient software solutions.
- Strong engineering fundamentals, including debugging, code reviews, system reliability, and software development best practices.
Additional eligibility requirements:
· Candidates must currently reside in the UK.
· Candidates must be available to start within 4 weeks of receiving an offer.
These Will Help You Stand Out
- Observability: Datadog, Prometheus and Grafana.
- AI/ML technologies: SageMaker, Azure and Gemini LLMs.
- Confidence with AI-assisted / agentic software development.
- Broader understanding of relevant technologies and modern software architecture.
- Strong cross-team collaboration and communication skills.
- Self-driven attitude with an interest in continuously learning new technologies, frameworks and engineering practices.
- Creative thinking, analytical ability and attention to detail.
关于高知特 (Cognizant)
高知特(Cognizant)（纳斯达克代码：CTSH）作为一家AI Builder和相关技术服务提供商，致力于通过打造全栈AI解决方案，帮助企业将人工智能投资转化为实际价值。公司凭借深厚的行业经验、流程优化和工程技术专长，将企业独特的业务场景融入科技系统，赋能组织释放人才潜能，推动切实成果，并帮助全球企业在瞬息万变的环境中保持领先。如需了解更多详情，敬请访问 cognizant.ai 或关注@cognizant。
补充雇佣信息
薪酬信息截至本职位发布之日为准。Cognizant 保留在适用法律允许的范围内随时修改该信息的权利。
申请人可能需要通过现场面试或视频会议的方式参加面试。此外，候选人在每次面试时可能需要出示其当前所在州或政府签发的有效身份证件。
Cognizant 是一家提供平等就业机会的雇主。在招聘过程中，您的申请和候选资格不会因种族、肤色、性别、宗教、信仰、性取向、性别认同、国籍、残疾、遗传信息、怀孕、退伍军人身份或任何其他受联邦、州或地方法律保护的特征而受到影响。
