Senior / Lead Kotlin Software Engineer (Fintech)

TL;DR

Senior / Lead Kotlin Software Engineer (Fintech): Building platforms for large organizations in the Netherlands and Europe with an accent on architecture decisions and platform strategy. Focus on cloud-native platforms, distributed systems, and AI-powered applications.

Location: 1 day together with colleagues at the office or client site in Leiden, 4 days per week remote.

Salary: €85,000 and €95,000

Company

A group of experienced software engineers who are deployed together at technology-driven companies across the Netherlands and Europe, expanding internationally and building a strong position as a thought leader in software engineering.

What you will do

• Bring innovation, knowledge, and engineering best practices to client organizations.
• Set the direction for architecture decisions and platform strategy.
• Help organizations structurally improve the way they build software.
• Work with Kotlin, Java, Go, Python, Scala, or TypeScript.
• Work on cloud-native platforms, distributed systems, and event-driven architectures.

Requirements

• At least 7 years of professional experience as a software engineer.
• Strong experience with Kotlin, Java, Scala, or another JVM language.
• Demonstrable experience with at least two programming languages in production.
• Experience with cloud-native architectures and preferably Kubernetes.
• Familiarity with distributed systems and the challenges of scalable platforms.
• Strong communication skills. You work directly with clients.

Nice to have

• Experience with event-driven or reactive architectures.
• Contributions to open source or speaking at meetups and conferences.
• Experience technically guiding other engineers.
• Interest in AI/ML applications within software engineering.

Culture & Benefits

• Permanent contract from day one.
• 4 days per week remote, 1 day together with colleagues at the office or client site.
• €5,000 training budget per year.
• 6 training days.
• Bi-weekly knowledge sessions with peers.
• New hardware every two years.
• Room for conferences and community activities.