Job Description

Role: Lead/Sr. Scala Developer

Location: Denver, CO

Term: Contract

Exp Level: Minimum 8+ years

JD :

• 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 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)

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