Java / Kotlin Developer

About This Role

This contract role contributes to the development of a new notification and campaign management platform, working alongside a highly collaborative engineering team to deliver a business-critical product from concept through to implementation and handover. It is ideal for a full stack Software Developer who enjoys owning work end-to-end and can balance rapid delivery with scalable, maintainable engineering practices.

Responsibilities

• Design and build scalable backend services, APIs, and data models
• Develop modern frontend experiences using React
• Implement business rules, validation, permissions, and workflow logic
• Integrate with identity management and authentication platforms
• Build APIs for both user-facing and programmatic platform interactions
• Create reporting capabilities, dashboards, and analytics visualisations
• Develop and maintain unit, integration, and end-to-end tests
• Collaborate with engineers and stakeholders throughout the software development lifecycle
• Support deployment, rollout, documentation, and knowledge transfer activities
• Contribute to architectural discussions and technical design decisions

Requirements

• 2-4 years of professional software engineering experience
• Strong experience with Java, Kotlin, ReactJS, and AWS
• Experience building REST APIs and backend services using Spring Boot or similar JVM frameworks
• Knowledge of relational databases and schema migration practices
• Experience with authentication and identity technologies including SSO, OAuth, OIDC, and Okta
• Experience with testing methodologies including unit, integration, and end-to-end testing
• Understanding of event-driven architectures, messaging, or notification systems
• Experience working across both frontend and backend application development
• Strong problem-solving and analytical skills
• Ability to work across backend, frontend, and integration layers
• Excellent communication and documentation skills
• Ability to manage ambiguity and convert requirements into practical solutions
• Collaborative mindset with a proactive approach to identifying risks and opportunities
• Passion for building reliable, scalable software products

Nice to have:

• Experience developing enterprise SaaS applications
• Exposure to reporting platforms, analytics dashboards, or visualisation tools
• Experience with access controls, permissions, and audit logging
• Familiarity with CSV data processing and large-scale user targeting workflows
• Experience delivering MVPs and transitioning solutions to internal engineering teams