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Cognizant

Senior Java Software Engineer

London
Posted 1 day ago
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Job Summary

We’re looking for a Platform Engineer / Backend Engineer with extensive experience, strong Java, AWS and Kubernetes skills, and a strong engineering mindset to take a key role on our team. The engineer should have a thorough understanding of the Software Development Life Cycle (SDLC) and should have contributed across all its phases – requirements, design, development, testing, deployment and support – along with experience building scalable backend and cloud-native services. The role also calls for good experience using AI tools, including the ability to write the right prompts for a given context, to improve engineering productivity, documentation, testing and solution design. A good understanding of the Banking, Financial Services and Insurance (BFSI/BFS) domain is important so the engineer can write accurate, business-aware prompts and validate AI-assisted outputs in context.

Key Responsibilities

  • Good understanding of design concepts, distributed systems and cloud-native architecture.
  • Bring a strong engineering mindset and a solid understanding of the Software Development Life Cycle (SDLC), with demonstrated contribution across all its phases – requirements analysis, design, development, testing, deployment and production support.
  • Maintain quality and ensure responsiveness, scalability and reliability of applications.
  • Experience with common design and architectural patterns coupled with a passion for writing clean, performant and well-tested code.
  • Maintain code integrity, organization and secure engineering practices.
  • Understand and implement security, data protection and compliance-aware development practices.
  • Develop backend services using Core Java 11 and above, JDBC, Microservices, REST Web Services, Spring Framework, Kafka and AWS.
  • Design, deploy and operate containerized services using Docker and Kubernetes, including AWS EKS/ECS, Helm or equivalent deployment tooling, service discovery, configuration, secrets and observability practices.
  • Use AI-assisted engineering tools responsibly for code generation, unit test creation, documentation, debugging, code review support, analysis and productivity improvement.
  • Write clear, accurate and context-rich prompts for AI tools by applying strong understanding of BFS/BFSI business processes, terminology, risk, controls and customer journeys.
  • Experience with cloud message APIs and usage of push notifications.
  • Follow and advocate best coding practices, CI/CD, continuous delivery and code reviews.
  • Experience working with relational and non-relational databases.

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Essential Skills

  • Extensive experience in Java 11 and above, Spring Framework, MVC, JDBC, Hibernate, REST Microservices/API’s, Cloud API’s and AWS services such as Lambda, ECS, EKS and Terraform, with a strong engineering mindset.
  • Strong understanding of SDLC with demonstrated contribution across all its phases – requirements, design, development, testing, deployment and support.
  • Strong Kubernetes experience, including cluster concepts, deployments, services, ingress, config maps, secrets, autoscaling, monitoring/observability and troubleshooting containerized workloads.
  • Extensive experience in backend development using Oracle PL/SQL and NoSQL databases.
  • Good experience using AI tools in the software delivery lifecycle, including prompt writing, code assistance, test generation, documentation, debugging and validation of AI-generated outputs.
  • Good understanding of the BFS/BFSI domain, including financial products, customer/account journeys, regulatory sensitivity, data privacy, risk controls and domain terminology, to support accurate prompt engineering and business-context validation.

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Nice to Have Skills

  • Good understanding of CI/CD framework and build automation.
  • Good understanding of Agile methodologies and practices.
  • Experience with infrastructure as code and deployment automation for Kubernetes-based platforms.
  • Analytical and reasoning skills.
  • Strong communication and collaboration skills.

Qualifications

  • Expert in Core Java 11 and above.
  • Thorough understanding of Java EE architecture, design patterns and Spring Framework.
  • Experience writing RESTful web services.
  • Experience with commonly used AWS services such as Lambda, EKS, ECS and EC2.
  • Hands-on experience with Kubernetes, container orchestration and cloud-native deployment patterns.
  • Experience using AI tools for engineering productivity, prompt creation, documentation, testing and code analysis.
  • Good understanding of BFS/BFSI domain concepts to create business-aware prompts and review AI-assisted outputs for correctness.
  • Experience writing automation test scripts using Selenium / Cucumber.
  • Strong knowledge of SQL and RDBMS database design.
  • Experience as part of an Agile development team, preferably Scrum.
  • Extensive years of overall industry/software engineering experience, with a strong engineering mindset and contribution across all phases of the SDLC.
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Skills

Java 11+
Spring Framework
AWS
Kubernetes
Microservices
Docker
Kafka
Terraform
RESTful APIs
SQL
NoSQL
CI/CD
Prompt Engineering
SDLC
Oracle PL/SQL
Agile

Location

London, England, United Kingdom

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