Senior Backend Engineer (Kotlin/Java) - Cloud, Kubernetes

Sytac; Amsterdam; On-site; EUR 90,000 - 120,000; Full time

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Job summary

Sytac in the Netherlands is seeking an experienced Senior Backend Engineer to design, build, and operate backend services using Kotlin or Java with Spring Boot. You will work on cloud infrastructure (Azure or GCP) and run services in production with Kubernetes, CI/CD, and robust test coverage.

The role values craftsmanship, rapid delivery, and collaboration with product and business teams. The ideal candidate has 8+ years of backend experience, strong Kotlin/Java skills, and a passion for clean

Qualifications

• 8+ years backend engineering experience in complex, fast-moving environments.
• Strong hands-on Kotlin and/or Java (JVM) skills with Spring Boot.
• Solid cloud experience, Azure, GCP, or similar.
• Deep understanding of software craftsmanship, clean code, and design patterns.
• Experience with both SQL and NoSQL databases.
• Day-to-day Kubernetes and CI/CD experience in production.
• Independent and proactive, you focus on what matters and move fast when it counts.
• Clear communicator who connects well with both technical and business teams.
• Affinity with AI-assisted and agentic development approaches.

Responsibilities

• Build, own, and operate backend services in Kotlin or Java using Spring Boot on cloud infrastructure (Azure, GCP or equivalent).
• Write clean, well-tested, maintainable code, comprehensive test coverage is part of how you work.
• Run services in production: CI/CD, incident response, and continuous improvement in a Kubernetes environment.
• Apply solid design patterns and clean code principles to keep things healthy at scale.
• Work with SQL and NoSQL databases and choose the right one for the job.
• Collaborate actively with engineers and business stakeholders, flag issues early, and help shape a strong team culture.
• Use AI and agentic development tools where they genuinely add value.

Skills

Kotlin

Java (JVM)

Spring Boot

Cloud (Azure/GCP)

SQL/NoSQL

CI/CD

Kubernetes

AI-assisted dev

Communication

Job description

Sytac in the Netherlands is seeking an experienced Senior Backend Engineer to design, build, and operate backend services using Kotlin or Java with Spring Boot. You will work on cloud infrastructure (Azure or GCP) and run services in production with Kubernetes, CI/CD, and robust test coverage.

The role values craftsmanship, rapid delivery, and collaboration with product and business teams. The ideal candidate has 8+ years of backend experience, strong Kotlin/Java skills, and a passion for clean