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Senior Backend Engineer(m/w/x)
Building event-driven integrations with Apache Kafka and Avro schemas for a digital transformation agency. 5+ years backend experience with Kotlin and Spring Boot required. 25 days holidays, 3 wellness days.
Requirements
- 5+ years backend engineering experience
- Bachelor's degree in computer science or IT, or equivalent experience
- Prior experience in regulated industries (banking or fintech)
- Proficiency in Kotlin
- Strong hands-on Spring Boot experience
- Solid Apache Kafka experience
- Proficiency with PostgreSQL and MySQL
- Practical Kubernetes or OpenShift experience
- Sound understanding of distributed systems, microservices architecture, and design patterns
- Familiarity with OAuth2/OIDC and backend security fundamentals
- Proficiency with Git and CI/CD practices
- German B2+ language skills
- English business proficient
- Familiarity with Spring Cloud and distributed tracing tools
- Experience with database migration tooling (Flyway or Liquibase)
- French or Italian, advantageous
Tasks
- Design and develop secure backend services
- Maintain scalable APIs using Kotlin and Spring Boot
- Build event-driven integrations with Apache Kafka
- Operate Kafka producers, consumers, and Kafka Streams
- Manage Avro schemas with exactly-once semantics
- Own data models and query optimization
- Handle schema migrations across PostgreSQL and MySQL
- Integrate services with observability tools
- Support CI/CD and DevOps tooling
- Deploy and monitor services on OpenShift/Kubernetes
- Apply OAuth2/OIDC security best practices
- Implement authentication and authorization
- Ensure data encryption
- Conduct code reviews
- Uphold engineering standards
- Mentor junior engineers
- Produce high-quality technical documentation
- Document design and implementation details
- Maintain API contracts
Work Experience
- 5 years
Education
- Bachelor's degree
Languages
- German – Business Fluent
- English – Business Fluent
- French – Basic
- Italian – Basic
Tools & Technologies
- Kotlin
- Spring Boot
- Spring MVC
- Spring Security
- Spring Data JPA
- Spring Cloud
- Apache Kafka
- Kafka Streams
- Schema Registry
- PostgreSQL
- MySQL
- HikariCP
- Kubernetes
- OpenShift
- OAuth2
- OIDC
- Git
- CI/CD
- Flyway
- Liquibase
Benefits
Flexible Working
- Flexible working hours model (flextime)
- Independent home office management
Social Impact
- 2 volunteer days for charitable activities
More Vacation Days
- 3 extra wellness days
Mental Health Support
- Mental Health First Aider
- Employee Assistance program
Modern Office
- State-of-the-art office space
Ergonomic Workplace
- Ergonomically equipped workstations
Informal Culture
- Pet friendly offices
Learning & Development
- Full access to Dentsu Academy
- On-site learning sessions
- Online language courses
Additional Allowances
- 40 hours learning allowance per year
Corporate Discounts
- Corporate benefits platform
Bonuses & Incentives
- Referral bonus program
Workation & Sabbatical
- Workation possibility
Team Events
- Company parties
- Aperos
Snacks & Drinks
- Monthly breakfasts
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Senior Backend Engineer(m/w/x)
Building event-driven integrations with Apache Kafka and Avro schemas for a digital transformation agency. 5+ years backend experience with Kotlin and Spring Boot required. 25 days holidays, 3 wellness days.
Requirements
- 5+ years backend engineering experience
- Bachelor's degree in computer science or IT, or equivalent experience
- Prior experience in regulated industries (banking or fintech)
- Proficiency in Kotlin
- Strong hands-on Spring Boot experience
- Solid Apache Kafka experience
- Proficiency with PostgreSQL and MySQL
- Practical Kubernetes or OpenShift experience
- Sound understanding of distributed systems, microservices architecture, and design patterns
- Familiarity with OAuth2/OIDC and backend security fundamentals
- Proficiency with Git and CI/CD practices
- German B2+ language skills
- English business proficient
- Familiarity with Spring Cloud and distributed tracing tools
- Experience with database migration tooling (Flyway or Liquibase)
- French or Italian, advantageous
Tasks
- Design and develop secure backend services
- Maintain scalable APIs using Kotlin and Spring Boot
- Build event-driven integrations with Apache Kafka
- Operate Kafka producers, consumers, and Kafka Streams
- Manage Avro schemas with exactly-once semantics
- Own data models and query optimization
- Handle schema migrations across PostgreSQL and MySQL
- Integrate services with observability tools
- Support CI/CD and DevOps tooling
- Deploy and monitor services on OpenShift/Kubernetes
- Apply OAuth2/OIDC security best practices
- Implement authentication and authorization
- Ensure data encryption
- Conduct code reviews
- Uphold engineering standards
- Mentor junior engineers
- Produce high-quality technical documentation
- Document design and implementation details
- Maintain API contracts
Work Experience
- 5 years
Education
- Bachelor's degree
Languages
- German – Business Fluent
- English – Business Fluent
- French – Basic
- Italian – Basic
Tools & Technologies
- Kotlin
- Spring Boot
- Spring MVC
- Spring Security
- Spring Data JPA
- Spring Cloud
- Apache Kafka
- Kafka Streams
- Schema Registry
- PostgreSQL
- MySQL
- HikariCP
- Kubernetes
- OpenShift
- OAuth2
- OIDC
- Git
- CI/CD
- Flyway
- Liquibase
Benefits
Flexible Working
- Flexible working hours model (flextime)
- Independent home office management
Social Impact
- 2 volunteer days for charitable activities
More Vacation Days
- 3 extra wellness days
Mental Health Support
- Mental Health First Aider
- Employee Assistance program
Modern Office
- State-of-the-art office space
Ergonomic Workplace
- Ergonomically equipped workstations
Informal Culture
- Pet friendly offices
Learning & Development
- Full access to Dentsu Academy
- On-site learning sessions
- Online language courses
Additional Allowances
- 40 hours learning allowance per year
Corporate Discounts
- Corporate benefits platform
Bonuses & Incentives
- Referral bonus program
Workation & Sabbatical
- Workation possibility
Team Events
- Company parties
- Aperos
Snacks & Drinks
- Monthly breakfasts
About the Company
Merkle Switzerland AG
Industry
IT
Description
Merkle is an integrated experience consultancy that focuses on digital business transformation and data-driven solutions.
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