Senior Backend Engineer

Working with a Southern California product engineering company that builds streaming software for media organizations, supporting live and on-demand content across web, mobile, and connected TV. The Role Design and build C#/.NET REST APIs, background workers, asynchronous workflows, and service-to-service integrations. Improve microservice architecture, including service boundaries, messaging, retries, circuit breakers, and idempotency. Build and operate services on AWS, selecting containers, serverless, or other compute options based on workload requirements. Support content ingestion, processing, packaging, and delivery workflows for live and on-demand media. Improve observability through metrics, logs, distributed tracing, alerting, and service level objectives. Guide technical decisions and help resolve complex production issues across services. What You'll Need Advanced, hands-on C#/.NET experience building and operating production backend platforms, including APIs, background processing, and asynchronous workflows. Experience with microservices at a meaningful scale, including independently deployed services, event-driven design, queues, failure handling, and production observability. Strong AWS experience building and operating production systems using services such as ECS/Fargate, EKS, Lambda, API Gateway, SQS, SNS, EventBridge, RDS/Aurora, DynamoDB, S3, CloudFront, IAM, or CloudWatch. Sound judgment about serverless and container-based architecture, including performance, concurrency, runtime limits, operational needs, and cost. Experience with a relational database (e.g., SQL Server, PostgreSQL), a NoSQL database, and a cache (e.g., Redis). Hands-on experience with OAuth 2.0 or OIDC, JWT, role-based access control, secrets management, Docker, and CI/CD. What's On Offer Competitive base salary between $140,000 - $160,000. Bonus incentives based on individual and company performance. Comprehensive full benefits package. Stock options and 401(k) match. Apply via Haystack today!