The Junior Developer contributes to the design, build, test, support and maintenance of enterprise applications. The role sits in a mission-critical integration setting, where applications exchange data between systems and must remain reliable, secure and auditable.
The purpose of the Junior Developer is to deliver stable, well-tested Java services and supporting components that keep data moving correctly between source and destination systems, while building the technical depth required to work independently on the platform.
RequirementsKey responsibilities
- Develop, enhance and maintain Java applications and services.
- Build and consume RESTful APIs, including request and response models, validation, error handling and versioning.
- Implement data access with JPA/Hibernate against relational databases, including queries, mappings and transaction handling.
- Write and maintain SQL for development, investigation and performance checks.
- Apply object-oriented design so new code fits existing patterns and is readable by the wider team.
- Write unit and integration tests, and support system and regression testing before release.
- Debug defects across application, API and database layers, and document root cause and fix.
- Use Git for branching, commits, pull requests and code review feedback.
- Build and package applications with Maven or Gradle, and follow the team’s build and release process.
- Participate in design discussions, sprint planning, stand-ups and estimations.
- Support deployments and provide first-line technical input on incidents within the junior scope.
- Maintain technical notes, configuration records and handover comments for features and fixes.
- Follow secure coding, data-protection and audit requirements that apply to sensitive data.
- Escalate risks early where a change could affect message flow, data integrity or service availability.
Essential
- 3 years’ commercial software development experience.
- Java, used in production applications rather than coursework only.
- Spring Boot for services, configuration, dependency injection and REST endpoints.
- RESTful API development and consumption.
- SQL and relational databases.
- JPA/Hibernate, including entity mapping and basic query tuning.
- Git in a team workflow.
- Maven or Gradle.
- Object-oriented programming and clean, maintainable code.
- Software testing, including unit tests and defect verification.
- Debugging and troubleshooting across logs, APIs and databases.
- Ability to work from a specification and ask clear questions when requirements are incomplete.
- Written and verbal communication suitable for technical and non-technical stakeholders.
Advantageous
- Angular and TypeScript for supporting front-end or admin screens.
- Microsoft Azure and Azure DevOps (repos, pipelines, boards, releases).
- Microservices and distributed architecture.
- Docker and Kubernetes.
- API security, including JWT, authentication and authorisation.
- Integration development: mapping, transformation, interface agreements and partner testing.
- Messaging technologies such as queues or event streams.
- Healthcare or clinical systems, including HL7, FHIR, or hospital information systems.
- Experience with mission-critical or high-availability applications.
- Exposure to monitoring, logging and alerting in production.
Desired Skills:
- java
- restful apis
- hibernate
- sql
- git
Desired Qualification Level:
- Degree
About The Employer: