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Senior Software Engineer(m/w/x)
Building backend services for player accounts, authentication, and access across an international lottery platform. Kotlin/JVM and microservices experience required. Unlimited vacation days, €1,500 annual development budget.
Requirements
- Backend development with Kotlin or JVM languages, ideally Spring Boot or Micronaut
- Solid understanding of API design principles
- Experience building microservices or service-oriented architectures
- Experience with relational and document databases
- Experience with event-driven systems
- Security-conscious development approach
- Knowledge of authentication and authorization patterns
- Familiarity with containerization and orchestration
- Familiarity with cloud platforms
- Team-oriented mindset
- Value collaboration and clear communication
- Contribute to shared goals in agile environment
- Openness to change
- Interest in tackling complex, evolving challenges
- Strong communication skills in English
- Experience with Go for services or tooling
- Exposure to multi-tenant system design
- Exposure to complex business logic with regulatory constraints
- Background in e-commerce or regulated digital products
- Familiarity with identity management
- Familiarity with know-your-customer processes
- Familiarity with compliance-focused systems
- Frontend experience with Angular
Tasks
- Build and evolve backend services for player accounts
- Develop backend services for authentication
- Develop backend services for access across the platform
- Develop and improve identity flows
- Develop and improve authorization flows
- Integrate external verification systems
- Integrate regulatory systems
- Ensure compliance and user safety
- Take ownership of services in production
- Ensure service reliability
- Ensure service performance
- Ensure service maintainability
- Design backend services and APIs
- Develop backend services and APIs
- Maintain backend services and APIs
- Power player account lifecycle
- Power identity verification
- Power access management
- Build authentication systems
- Evolve authentication systems
- Build authorization systems
- Evolve authorization systems
- Ensure secure customer access
- Ensure easy customer access
- Implement integrations with third-party providers
- Ensure player protection
- Collaborate with cross-functional teams
- Drive API design decisions
- Ensure services are intuitive
- Ensure services are well-documented
- Align services with security best practices
- Support production operations
- Monitor services
- Troubleshoot services
- Continuously improve service reliability
- Continuously improve service performance
- Continuously improve service auditability
- Participate in technical discussions
- Participate in knowledge sharing
- Raise the bar for engineering quality
- Raise the bar for engineering innovation
Work Experience
- approx. 4 - 6 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- english – Native
Tools & Technologies
- Kotlin
- JVM languages
- Spring Boot
- Micronaut
- API design
- microservices
- service-oriented architectures
- PostgreSQL
- MongoDB
- Kafka
- OAuth2
- OpenID Connect
- session management
- Docker
- Kubernetes
- AWS
- Go
- Angular
Benefits
Additional Allowances
- Annual development budget of €1,500
- Monthly mobility allowance of €30
Informal Culture
- Trust and autonomy
Flexible Working
- Flexible work options
More Vacation Days
- Unlimited vacation days
- 30-day vacation allowance
Workation & Sabbatical
- Workations abroad
Company Bike
- Company bike leasing program
Retirement Plans
- Company pension scheme
Healthcare & Fitness
- Subsidized EGYM WELLPASS membership
Team Events
- Monthly company events
- Team activities
- Informal gatherings
Free or Subsidized Food
- Company-wide lunches
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Senior Software Engineer(m/w/x)
Building backend services for player accounts, authentication, and access across an international lottery platform. Kotlin/JVM and microservices experience required. Unlimited vacation days, €1,500 annual development budget.
Requirements
- Backend development with Kotlin or JVM languages, ideally Spring Boot or Micronaut
- Solid understanding of API design principles
- Experience building microservices or service-oriented architectures
- Experience with relational and document databases
- Experience with event-driven systems
- Security-conscious development approach
- Knowledge of authentication and authorization patterns
- Familiarity with containerization and orchestration
- Familiarity with cloud platforms
- Team-oriented mindset
- Value collaboration and clear communication
- Contribute to shared goals in agile environment
- Openness to change
- Interest in tackling complex, evolving challenges
- Strong communication skills in English
- Experience with Go for services or tooling
- Exposure to multi-tenant system design
- Exposure to complex business logic with regulatory constraints
- Background in e-commerce or regulated digital products
- Familiarity with identity management
- Familiarity with know-your-customer processes
- Familiarity with compliance-focused systems
- Frontend experience with Angular
Tasks
- Build and evolve backend services for player accounts
- Develop backend services for authentication
- Develop backend services for access across the platform
- Develop and improve identity flows
- Develop and improve authorization flows
- Integrate external verification systems
- Integrate regulatory systems
- Ensure compliance and user safety
- Take ownership of services in production
- Ensure service reliability
- Ensure service performance
- Ensure service maintainability
- Design backend services and APIs
- Develop backend services and APIs
- Maintain backend services and APIs
- Power player account lifecycle
- Power identity verification
- Power access management
- Build authentication systems
- Evolve authentication systems
- Build authorization systems
- Evolve authorization systems
- Ensure secure customer access
- Ensure easy customer access
- Implement integrations with third-party providers
- Ensure player protection
- Collaborate with cross-functional teams
- Drive API design decisions
- Ensure services are intuitive
- Ensure services are well-documented
- Align services with security best practices
- Support production operations
- Monitor services
- Troubleshoot services
- Continuously improve service reliability
- Continuously improve service performance
- Continuously improve service auditability
- Participate in technical discussions
- Participate in knowledge sharing
- Raise the bar for engineering quality
- Raise the bar for engineering innovation
Work Experience
- approx. 4 - 6 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- english – Native
Tools & Technologies
- Kotlin
- JVM languages
- Spring Boot
- Micronaut
- API design
- microservices
- service-oriented architectures
- PostgreSQL
- MongoDB
- Kafka
- OAuth2
- OpenID Connect
- session management
- Docker
- Kubernetes
- AWS
- Go
- Angular
Benefits
Additional Allowances
- Annual development budget of €1,500
- Monthly mobility allowance of €30
Informal Culture
- Trust and autonomy
Flexible Working
- Flexible work options
More Vacation Days
- Unlimited vacation days
- 30-day vacation allowance
Workation & Sabbatical
- Workations abroad
Company Bike
- Company bike leasing program
Retirement Plans
- Company pension scheme
Healthcare & Fitness
- Subsidized EGYM WELLPASS membership
Team Events
- Monthly company events
- Team activities
- Informal gatherings
Free or Subsidized Food
- Company-wide lunches
About the Company
ZEAL Network SE
Industry
Entertainment
Description
The company is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24.
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