Zibal Technologies
Role: Sr. Scala Developer
Location: Denver, CO US (Onsite)
Type: Contract
Experience level: 12 - 15+ Years
Job Description: -
Design and develop RESTful and GraphQL APIs using Java and Scala
Build event-driven services and microservices that produce and consume messages via Apache Kafka
Implement backend systems using frameworks like Spring Boot, Akka HTTP, or Play
Ensure reliable, fault-tolerant Kafka integration, including schema validation, error handling, and retries
Collaborate with frontend and platform teams to define clear API contracts and integration patterns
Contribute to code quality, testing, and CI/CD automation
Monitor, troubleshoot, and optimize performance of services and API endpoints
Strong programming experience with Scala (Akka, Play, or Cats/Scalaz) and Java (8+)
Hands-on experience with Apache Kafka (producer/consumer APIs, Avro/Protobuf, topic design)
Experience building and consuming RESTful APIs and optionally GraphQL APIs
Knowledge of functional programming and reactive patterns
Familiarity with Spring Boot, asynchronous programming, and dependency injection
Strong unit and integration testing practices
Comfortable with Git, CI/CD pipelines, and API security (OAuth2, JWT)
Nice to Have
Kafka Streams or Akka Streams experience
Exposure to Kafka Connect, Schema Registry, and message validation patterns
Knowledge of Docker, Kubernetes, and cloud-native app development
Familiarity with API gateways (e.g., Kong, Apigee) or service mesh (e.g., Istio)
Location: Denver, CO US (Onsite)
Type: Contract
Experience level: 12 - 15+ Years
Job Description: -
Design and develop RESTful and GraphQL APIs using Java and Scala
Build event-driven services and microservices that produce and consume messages via Apache Kafka
Implement backend systems using frameworks like Spring Boot, Akka HTTP, or Play
Ensure reliable, fault-tolerant Kafka integration, including schema validation, error handling, and retries
Collaborate with frontend and platform teams to define clear API contracts and integration patterns
Contribute to code quality, testing, and CI/CD automation
Monitor, troubleshoot, and optimize performance of services and API endpoints
Strong programming experience with Scala (Akka, Play, or Cats/Scalaz) and Java (8+)
Hands-on experience with Apache Kafka (producer/consumer APIs, Avro/Protobuf, topic design)
Experience building and consuming RESTful APIs and optionally GraphQL APIs
Knowledge of functional programming and reactive patterns
Familiarity with Spring Boot, asynchronous programming, and dependency injection
Strong unit and integration testing practices
Comfortable with Git, CI/CD pipelines, and API security (OAuth2, JWT)
Nice to Have
Kafka Streams or Akka Streams experience
Exposure to Kafka Connect, Schema Registry, and message validation patterns
Knowledge of Docker, Kubernetes, and cloud-native app development
Familiarity with API gateways (e.g., Kong, Apigee) or service mesh (e.g., Istio)