Edge-Enabled Cloud Backend Engineer (Go/TypeScript, AWS)

Kastech; Brea, Northern (CA, KY); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Kastech is seeking a Cloud Backend Engineer to design, build, and operate the backend services behind a multi-tenant, event-driven cloud platform. You will own end-to-end delivery, from architecture and infrastructure-as-code through production operations.

This hands-on role on a small senior team involves writing Go services, defining AWS infrastructure with CDK, and securing the API edge across cloud and device/edge boundaries.

Qualifications

• Experience building backend services in Go and Node/Typescript.
• Hands-on AWS experience (Lambda, API Gateway, SQS, DynamoDB, S3, IAM, Cognito).
• Infrastructure as code experience (CDK/ Terraform).
• Knowledge of multi-tenant SaaS backends and security.

Responsibilities

• 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, 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 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.

Skills

Go

Node/Typescript

Distributed systems

CI/CD

Observability

Security

OAuth2/JWT

Tools

AWS CDK

Terraform / CloudFormation

Jenkins

Docker

PostgreSQL

Job description

Kastech is seeking a Cloud Backend Engineer to design, build, and operate the backend services behind a multi-tenant, event-driven cloud platform. You will own end-to-end delivery, from architecture and infrastructure-as-code through production operations.

This hands-on role on a small senior team involves writing Go services, defining AWS infrastructure with CDK, and securing the API edge across cloud and device/edge boundaries.