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.
Sobre a Cognizant
Cognizant (NASDAQ: CTSH) é uma construtora de IA e fornecedora de serviços de tecnologia, criando a ponte entre o investimento em IA e o valor para as empresas por meio do desenvolvimento de soluções de IA completas para nossos clientes. Nossa profunda experiência em setores, processos e engenharia nos permite incorporar o contexto único de cada organização em sistemas tecnológicos que potencializam a capacidade humana, geram resultados tangíveis e mantêm empresas globais à frente em um mundo em rápida transformação. Saiba mais em cognizant.ai ou @cognizant.
A Cognizant é uma empregadora que investe em equidade. Sua candidatura não será pautada em raça, cor, gênero, sexualidade, credo, origem, deficiência, gravidez ou qualquer outra característica protegida pelas leis brasileiras.
Informações adicionais de emprego
Os candidatos podem ser obrigados a comparecer a entrevistas presenciais ou por videoconferência. Além disso, os candidatos podem ser obrigados a apresentar seu documento de identificação emitido pelo estado ou governo atual durante cada entrevista.
Embora nosso sistema permita a candidatura em todos os idiomas, o(s) idioma(s) e o(s) nível(is) de proficiência exigidos para o trabalho variam. No entanto, é necessário um nível básico de inglês para fins de comunicação em toda a empresa.
A Cognizant é uma empregadora que investe em equidade. Sua candidatura não será pautada em raça, cor, gênero, sexualidade, credo, origem, deficiência, gravidez ou qualquer outra característica protegida pelas leis brasileiras.
Se você tem uma deficiência que requer adaptações razoáveis para procurar uma vaga de emprego ou enviar uma candidatura, envie um e-mail para [email protected] com sua solicitação e informações de contato.
