We’re looking for a hands-on Staff Backend Engineer/Technical Lead This person must be capable of independently designing, developing, deploying, and operating a production backend service while working effectively across application, infrastructure, security, and product teams. Key requirements Strong production experience with Kotlin or Java/JVM and Spring Boot Experience designing and supporting REST APIs and distributed systems Strong knowledge of MongoDB or Amazon DocumentDB , including data modeling, indexing, migrations, concurrency, and atomic updates Experience with Kafka, Avro, Schema Registry, asynchronous processing, retries, and idempotency Hands-on deployment experience with AWS, EKS/Kubernetes, Helm, and CI/CD Working knowledge of AWS IAM/IRSA, secrets management/Vault, and service networking Strong testing practices, including unit and integration testing with tools such as Testcontainers Experience with production observability, troubleshooting, incident response, and safe rollback strategies Demonstrated technical leadership and ability to drive cross-functional work with minimal supervision Nice-to-have experience: Temporal workflows Confluent Cloud Istio and OPA OpenTelemetry, Datadog, or Honeycomb Gradle, CircleCI, Jib, Cosign, and Snyk Legacy-system modernization or migration projects This is primarily a backend and platform-oriented role , not a frontend, pure DevOps, people-management, or machine-learning position. We need a senior individual contributor who remains hands-on and can take end-to-end ownership of the service.