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Kastech Software Solutions Group
CLOUD BACKEND ENGINEERKastech Software Solutions Group • Brea, California, United States
CLOUD BACKEND ENGINEER

CLOUD BACKEND ENGINEER

Kastech Software Solutions Group • Brea, California, United States
1 day ago
Job type
  • Full-time
Job description

About the Role

We're looking for a Cloud Backend Engineer to design, build, and operate the backend services behind a multi-tenant, event-driven cloud platform. You'll work across cloud services and device/edge connectivity, building reliable, scalable systems and owning them end-to-end — from architecture and infrastructure-as-code through to production operations.

This is a hands-on, high-ownership role on a small, senior team. You'll write Go services, define your own AWS infrastructure in CDK, secure the API edge, and reason about the boundary between the device edge and the cloud.

What You'll Do

● Design, build, and maintain backend services and APIs in Go, with supporting code and infrastructure in TypeScript.

● Define and operate cloud infrastructure on AWS using CDK — API Gateway, Lambda, SQS (including dead-letter/redrive queues), DynamoDB, S3, RDS/Aurora PostgreSQL, Cognito, CloudFront, and WAF.

● Build and scale event-driven and device-to-cloud pipelines — telemetry and data ingestion, content/command delivery, retries, and offload/consolidation processing.

● Work across the cloud/edge boundary — services and agents running on edge/embedded Linux, using AWS IoT Greengrass and MQTT messaging.

● Strengthen multi-tenant isolation, identity, and security — PostgreSQL Row-Level Security, OAuth2/JWT, API gateway authorizers and middleware, edge protection (CloudFront/WAF/Lambda@Edge), and encryption in transit and at rest (KMS/Secrets Manager).

● Own reliability and observability — structured logging with secret redaction, retry/back-off and idempotency, latency tracing, and diagnosing concurrency and load problems in ingestion and delivery paths.

● Write and maintain CI/CD and security scanning — Jenkins pipelines, Docker, and remediation of dependency/container findings (e.g., BlackDuck, Sysdig) across multiple environments.

● Collaborate with architecture, firmware/edge, and product teams to define the API and data contracts between devices and the cloud.

● Contribute to design reviews, participate in on-call/incident response, and help with release engineering for production systems.

What We're Looking For

Required:

● Strong professional experience building backend services in Go and Node/Typescript (services, middleware, concurrency, testing).

● Hands-on experience with AWS — Lambda, API Gateway, SQS, DynamoDB, S3, IAM, Cognito, RDS/Aurora, CloudWatch — and comfort operating what you build.

● Experience writing infrastructure as code, ideally AWS CDK (TypeScript) (Terraform/CloudFormation experience translates).

● Solid understanding of distributed systems — event-driven architecture, message queues, retries/idempotency, dead-letter handling, eventual consistency, and fault tolerance.

● Experience designing and securing multi-tenant SaaS backends — tenant isolation, authn/authz (OAuth2, JWT), and API gateway patterns.

● Working knowledge of PostgreSQL — schema design, migrations, and query performance (Row-Level Security a strong plus).

● Comfort with CI/CD and containerization — Jenkins (or similar), Docker, and multi-environment promotion.

● Strong debugging and observability instincts, and clear technical communication.

Nice to Have:

● Experience with IoT / device-to-cloud systems — AWS IoT Greengrass, MQTT, device provisioning, fleet management, and telemetry pipelines.

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CLOUD BACKEND ENGINEER • Brea, California, United States

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