Our client is a Southern California product engineering company building streaming software for media organizations. Its platform supports live and on-demand content across web, mobile, and connected TV. They are seeking a Senior / Principal .NET Backend Software Engineer to build and improve the services behind their streaming products.
This is a hands‑on role focused on C#/.NET, distributed systems, and AWS. You will develop APIs, event‑driven services, and content ingestion workflows while improving the reliability and performance of a large backend platform. Principal‑level candidates should also have experience leading the architecture of a substantial backend domain.
Responsibilities
- 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.
- Build security into services using authentication, role‑based access, secrets management, and secure communication.
- Guide technical decisions and help resolve complex production issues across services.
Required Experience
- Advanced, hands‑on C#/.NET experience building and operating production backend platforms, including APIs, background processing, and asynchronous workflows.
- Experience with microservices at 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 such as SQL Server or PostgreSQL, a NoSQL database, and a cache such as Redis.
- Hands‑on experience with OAuth 2.0 or OIDC, JWT, role‑based access control, secrets management, Docker, and CI/CD.
- Experience managing AWS infrastructure through Terraform, CloudFormation, or similar tools.
Strongly Preferred
- Production experience with Kafka or a comparable event streaming platform.
- Kubernetes experience in addition to strong AWS platform experience.
- Experience with high‑throughput systems, media workflows, job orchestration, or multi‑tenant SaaS.
- A record of improving the cost, reliability, or performance of an existing AWS platform.
- For Principal‑level candidates, experience setting architecture for a substantial backend domain.
Nice to Have
- Snowflake or analytics pipeline experience.
- Familiarity with streaming, transcoding, or CDN technology.
- Go experience.
The Offer
- $140,000–$160,000 base salary
- Bonus incentives based on individual and company performance
- Full benefits
- Stock options
- 401(k) match