Senior Java Developer (AWS, Java, API) - Sussex - Hybrid
Posted 2 days ago by Salt Search
Negotiable
Inside
Hybrid
Sussex, UK
Summary: The Senior Java Developer role focuses on designing, developing, and maintaining secure, scalable, and cloud-native Java microservices primarily hosted on AWS. The position requires collaboration with various teams to ensure best practices in software design and operational support. The developer will also contribute to L3 support activities, ensuring the reliability of production systems. This is a hybrid role based in Sussex, requiring on-site presence two days a week.
Key Responsibilities:
- Design, build, and maintain secure, high-performance Java-based microservices.
- Implement RESTful APIs and GraphQL integrations.
- Ensure services are cloud-native, scalable, and resilient in AWS.
- Write clean, maintainable code following internal coding standards.
- Develop automated tests (unit, integration, performance).
- Participate in peer code reviews and technical discussions.
- Support production systems through L3 incident triage and root cause analysis.
- Monitor service health using observability tools.
- Identify opportunities for refactoring and performance improvements.
- Work with Technical Leads, QA Engineers, and Product Owners to deliver sprint goals.
- Contribute to estimation, design discussions, and documentation.
- Participate in DevOps practices including CI/CD and deployments.
- Develop secure APIs and Back End services following best practices.
- Embed monitoring, logging, and tracing into services.
- Ensure solutions meet organisational security and compliance standards.
Key Skills:
- 5+ years of professional Back End development experience.
- Strong understanding of Object-Oriented Programming principles and familiarity with Functional Programming.
- Proficiency in Java (v8 - v24) and dependency injection frameworks.
- Knowledge of software design patterns.
- Understanding of microservices architecture and event-driven patterns.
- Familiarity with other JVM languages.
- Hands-on experience with AWS cloud services (eg, Lambda, API Gateway, DynamoDB, ECS, S3).
- Experience developing RESTful APIs.
- Exposure to SOAP and GraphQL services.
- Familiarity with CI/CD pipelines (eg, Jenkins, GitHub Actions, AWS CodePipeline).
- Knowledge of unit, integration, and automation testing.
- Awareness of security best practices, including OAuth2/JWT authentication.
- Awareness of SQL and NoSQL (eg, OpenSearch).
- Familiarity with industry-specific systems (eg, GDS) is advantageous.
- Experience working with Partner and Vendor Teams (onshore and offshore).
Salary (Rate): £700 Daily
City: Sussex
Country: UK
Working Arrangements: hybrid
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
Detailed Description From Employer:
Senior Java Developer (AWS, Java, API) - Sussex - Hybrid
Daily rate: £500 - £700 (inside IR35)
Duration: 6 months
Hybrid: 2 days a week on site (tues, weds)
Start: ASAP
My client is looking for a Senior Software Developer (AWS/Java) to join the Digital Development & Delivery team. You will play a key role in designing, developing, and maintaining secure, scalable, and cloud-native Java microservices, primarily hosted on AWS, integrating with both internal and third-party systems.
Collaborating closely with technical leads, platform engineers, QA, and product teams, you will follow best practices in software design, observability, security, and DevOps principles. You will also contribute to L3 support activities, ensuring the stability and reliability of production systems.
Requirements:
- 5+ years of professional Back End development experience
- Strong understanding of Object-Oriented Programming principles and familiarity with Functional Programming
- Proficiency in Java (v8 - v24) and dependency injection frameworks
- Knowledge of software design patterns
- Understanding of microservices architecture and event-driven patterns
- Familiarity with other JVM languages
- Hands-on experience with AWS cloud services (eg, Lambda, API Gateway, DynamoDB, ECS, S3)
- Experience developing RESTful APIs
- Exposure to SOAP and GraphQL services
- Familiarity with CI/CD pipelines (eg, Jenkins, GitHub Actions, AWS CodePipeline)
- Knowledge of unit, integration, and automation testing
- Awareness of security best practices, including OAuth2/JWT authentication
- Awareness of SQL and NoSQL (eg, OpenSearch)
- Familiarity with industry-specific systems (eg, GDS) is advantageous
- Partner and Vendor Teams (onshore and offshore)
Backend Service Development
- Design, build, and maintain secure, high-performance Java-based microservices
- Implement RESTful APIs and GraphQL integrations
- Ensure services are cloud-native, scalable, and resilient in AWS
Code Quality, Testing, and Best Practice
- Write clean, maintainable code following internal coding standards
- Develop automated tests (unit, integration, performance)
- Participate in peer code reviews and technical discussions
Operational Support and Continuous Improvement
- Support production systems through L3 incident triage and root cause analysis
- Monitor service health using observability tools
- Identify opportunities for refactoring and performance improvements
Collaboration and Agile Delivery
- Work with Technical Leads, QA Engineers, and Product Owners to deliver sprint goals
- Contribute to estimation, design discussions, and documentation
- Participate in DevOps practices including CI/CD and deployments
Security, Compliance, and Observability
- Develop secure APIs and Back End services following best practices
- Embed monitoring, logging, and tracing into services
- Ensure solutions meet organisational security and compliance standards
Rates depend on experience and client requirements