Flix
Finance Technology
SeniorKotlinBackendEngineer(m/f/d)
“Senior Kotlin Backend Engineer (m/f/d) at Flix. Skills: Kotlin, Backend services, Spring ecosystem, event-driven systems, AWS, databases. Design, develop, and maintain backend services using Kotlin. Build and evolve scalable, event-driven systems that process, validate, and expose financial data”
What You'll Achieve.
data correctness; consistency; trustworthiness; new country launches; new business models; continuous evolution of Flix’s financial backbone; systems that need to be right, not just fast; data accuracy; traceability; auditability; system reliability; observability; performance for business-critical processes
Industry & Context.
investigation; analysis; precision
Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year.
What They're Looking For.
Must Have
5 years of experience as a Software Engineer working with Kotlin, Hands-on experience building backend services using the Spring ecosystem (e. g. Spring Boot, Spring Data), Experience with event-driven design (e. g. asynchronous processing, messaging, domain events), Practical experience with cloud platforms (preferably AWS, or similar), Solid understanding of databases, both NoSQL (e. g. DynamoDB) and/or relational systems, Comfortable working in complex, data-heavy domains (ideally Finance), where investigation, analysis, and precision are key, Communicate clearly in English
Nice to Have
AWS, DynamoDB
What You'll Do.
and maintain backend services using Kotlin
Build and evolve scalable
event-driven systems that process
and expose financial data
Own features end-to-end: from technical design and implementation to testing
and ongoing maintenance
and auditability across financial and accounting flows
Improve system reliability
and performance for business-critical processes
Contribute to clean code
architectural discussions
and continuous improvement of engineering practices
How You'll Work.
Team & Collaboration
self-managed, cross-functional team with a Product Owner and fellow Software Engineers; Collaborate closely with the Product Owner and Finance stakeholders to translate business requirements into robust technical solutions
Communication Scope
Communicate clearly in English
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