Job Description

Senior Kotlin Backend Developer

• Location: Amsterdam, Netherlands
• Employment Type: Contract / Freelance
• Start Date: Immediate
• Duration: 6 Months
• Experience: 10+ Years
• Domain: Digital / Backend Development

• We are seeking an experienced Senior Kotlin Backend Developer to join an Agile Scrum team developing business-critical and strategic applications.
• The successful candidate will contribute to the full software development lifecycle, from architecture and development through to deployment and ongoing operational support.
• This role follows a DevOps way of working, with developers taking ownership of the reliability, quality, and availability of their applications.
• Availability for 24/7 standby shifts is required.

Key Responsibilities

• Develop and maintain backend applications using Kotlin and Spring Boot
• Design and implement reliable, scalable, and maintainable software solutions.
• Analyse and design application and data architecture solutions.
• Develop applications supporting business-critical and strategic delivery processes.
• Write clean, efficient, and high-quality code.
• Enforce coding standards and software quality practices.
• Develop and maintain development best practices.
• Participate in code reviews and contribute to continuous improvement.
• Manage application deployments and releases.
• Take end-to-end ownership of the team's code and applications.
• Monitor application availability, reliability, and performance.
• Participate in Agile Scrum ceremonies, including:
  • Daily stand-ups
  • Backlog refinement
  • Sprint planning
  • Sprint retrospectives
• Work collaboratively with other developers, engineers, Product Owners, and technical stakeholders.
• Participate in 24/7 standby/on-call support when required.

Essential Skills

• 10+ years of software development experience.
• Strong Kotlin development experience.
• Strong Spring Boot experience.
• Backend development.
• Microservices architecture.
• Application and data architecture.
• Software design and development.
• Experience developing business-critical applications.
• DevOps practices and application ownership.
• Code quality and development best practices.
• Deployment and release management.
• Agile/Scrum methodology.
• Willingness to participate in 24/7 standby/on-call support.

Desirable Skills

• Experience with cloud-native application development.
• CI/CD and automated deployment experience.
• Containerization and Kubernetes.
• Observability and application monitoring.
• Experience working with large-scale enterprise applications.
• Experience in highly available and business-critical environments.

Key Competencies

• Strong software engineering and problem-solving skills.
• Excellent teamwork and collaboration.
• Strong sense of ownership and accountability.
• Quality-focused approach to software development.
• Ability to work effectively in Agile environments.
• Strong analytical and architectural thinking.
• Proactive approach to identifying and resolving technical issues.
• Ability to work under pressure and support critical applications.
• Excellent communication skills.
• Continuous improvement mindset.

Apply now if you are a Senior Kotlin Backend Developer with strong Spring Boot and Microservices experience and are comfortable taking end-to-end ownership of business-critical applications in a DevOps environment.