Senior Java Developer
About the Role
As a Senior Java Developer, you will join an international team building a Content Management System that powers content and metadata for leading video streaming platforms. You'll develop scalable Java applications, APIs, and data services while helping shape the team's technical direction and ensuring high engineering standards.
Beyond feature development, you'll support and improve the reliability, performance, and scalability of core services, solving complex technical challenges and driving continuous improvements. You'll also mentor junior developers, share technical expertise, and foster a collaborative culture focused on learning, innovation, and quality.
Key Responsibilities:
· Development of the CMS application components using Java and Spring with focus on both new features and fixes or improvements of existing functionality
· Strive for continuous improvement – be able to improve existing practices and techniques from within the team with enthusiasm
· Write well-tested code for robustness including edge cases, usability and general reliability. Focus on non-functional testing as well.
· Lead in setting up the CI and CD, monitoring and alerting and in general improving reliability and robustness of the system
· Identify and resolve issues in the codebase. Use debugging tools and techniques to diagnose problems.
· Mentor less experienced members of the team
· Lead in the maintenance and support of the AWS infrastructure, Kubernetes deployment, Postgresql Database or Kafka
· Review code written by peers to ensure adherence to coding standards and best practices.
· Work closely with other developers, architects and to understand requirements and deliver solutions.
· Participate in daily standup-meetings as well as other team cceremonies to discuss progress, blockers, and plans.
What skills do you need to play your role well?
· Strong Java and Spring knowledge and experience with technologies such as AWS, PostgreSQL, Docker, Kubernetes, Kafka, Prometheus, Grafana, Kibana, Jenkins
· Good overview of other relevant technologies and experience with designing software solutions
· Ability to work well not only in your team but also in a cross-team environment.
· Hands on experience in designing, developing and successful deployment of web applications, RESTful APIs or event-driven systems and asynchronous messaging using Kafka
· Experience with automated test frameworks including considerations for non-functional requirements
· Knowledge of Unix/Linux and scripting languages (Bash, etc.)
· Being self-driven and eager to learn and stay updated with the latest technologies, frameworks, and best practices.
· Creative thinking skills and analytical skills, with attention to detail.
Additional Eligibility Requirements
- Candidates must currently reside in the United Kingdom.
- Candidates must be available to start within 3 weeks of receiving an offer.
- Ability to work onsite in London, UK, three days per week.
About Cognizant
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Things to know before you apply
- Work authorization: Cognizant will only consider applicants for this position who are legally authorized to work in Canada without requiring employer sponsorship, now or at any time in the future.
- Accommodations: If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
- AI in hiring: We use artificial intelligence (AI) tools to help us screen and assess applications more efficiently. Our team performs additional human review and ultimately decides who moves forward in our hiring process.
- Open position: Unless otherwise stated, this job posting is for an open position on our team.
- Language proficiency: We ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
- Inclusion: Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.











