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Backend Developer | Kotlin
Key facts about position
Project ID
Start Date
By agreement
Contract Type
Freelance
Salary
By agreement EUR/month
Short description
We’re looking for experienced Backend Developer for a project in the banking sector. You’ll build robust, scalable backend services in Kotlin/Java, deliver clean APIs, and collaborate closely with frontend, QA, and DevOps teams. Long-term roadmap, modern stack, and a strong focus on code quality and reliability.
Job description
- Write and maintain backend code (Kotlin/Java) with clean architecture principles.
- Design, build, and manage RESTful APIs.
- Integrate and operate event streaming with Kafka.
- Collaborate with frontend, QA, and DevOps to plan, deliver, and release features.
- Review code, enforce standards, and promote maintainability.
- Monitor performance, troubleshoot issues, and fix defects.
- Maintain CI/CD pipelines and support automated deployments.
- Support testing efforts (unit/integration) and ensure overall code quality.
- Onsite presence in Vienna once every or every second week required
Benefits
- Membership in APM.Digital club - become APM Expert
- Beer box for each APM Expert
- 100% work from home
- Multisport card
- Flexible working hours
- Tax and social counseling for freelancers
- Work with the most modern tools on the market in all areas
- Young team, frequent team building
Requirements
- Solid hands-on experience with Kotlin and Java (ideally Java 17–21).
- Strong Spring Boot expertise for scalable backend services.
- Practical experience with AWS infrastructure and services.
- Familiarity with CI/CD and deployment automation.
- Proficiency with Docker and Kubernetes.
- Experience with Kafka for event-driven architectures.
- Commitment to code quality, clean architecture, and maintainability.
- Nice to have: experience with Elasticsearch, PostgreSQL, Rest Assured for API testing.
The position is suitable for candidates with education
university I. degree
Language skills
English Language - upper intermediate (B2)
Number of years of experience
Minimum of 4 years of experience
Information concerning the recruitment process
- We will give feedback to all candidates invited to the interview.
We lead Digital Transformation across multiple industries
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