Senior SDET (Agentic AI & Full-Stack)

Cinergy Technology Inc; Dallas (TX); On-site; USD 180,000 - 240,000; Full time

Job summary

Cinergy Technology Inc is seeking a Senior SDET to lead testing across front-end, back-end APIs, and AI-driven workflows. This role requires hands-on development in Python or Java with substantial SDET experience and a proven ability to build scalable automation frameworks and CI/CD strategies for cloud deployments.

Ideal candidates will have experience with agentic AI frameworks (LangChain, CrewAI, AutoGen, or LlamaIndex), LLM patterns, and distributed systems, plus familiarity with Docker and

Qualifications

• 10+ years as SDET, SWE or full stack developer.
• Strong Python or Java with production-grade experience.
• Frontend development experience (React/Angular/Vue).
• Backend development with APIs, microservices, distributed systems.
• Expertise in API testing, contract testing, and service level automation.
• Experience building automation frameworks from scratch.
• Strong understanding of CI/CD pipelines and automated quality gates.
• Experience with AWS services (EC2, Lambda, S3, IAM, CloudFormation/Terraform).
• Experience integrating or building solutions using LLMs or Amazon Bedrock.
• Agentic AI Experience: hands-on building and deploying production-ready agentic apps.
• AI Orchestration Frameworks: LangChain, CrewAI, AutoGen, or LlamaIndex familiarity.
• Advanced AI Patterns: LLM reasoning, RAG, function calling/memory management.
• Familiarity with containers (Docker) and orchestration (Kubernetes).

Skills

SDET experience

Python

Java

Frontend development

Backend APIs/microservices

API testing/contract testing

Automation frameworks

CI/CD pipelines

AWS (EC2/Lambda/S3/IAM)

LLMs / Bedrock

Agentic AI

LangChain / CrewAI / AutoGen / Llama索引

Tools

Docker

Kubernetes

CloudWatch

Datadog

OpenTelemetry

k6/Gatling/Locust

Kafka

SNS/SQS

LangChain

Job description

Job Title: Senior SDET (Agentic AI & Full-Stack) - W2 only

Duration: Long term

Required Qualifications:

• 10+ years as an SDET, Software Engineer or Full Stack Developer.
• Strong coding skills in Python or Java with production grade engineering experience.
• Hands on frontend development experience (React, Angular, Vue, or similar).
• Hands on backend development experience with APIs, microservices, and distributed systems.
• Expertise in API testing, contract testing, and service level automation.
• Experience building automation frameworks from scratch.
• Strong understanding of CI/CD pipelines and automated quality gates.
• Experience with AWS services (EC2, Lambda, S3, IAM, CloudFormation/Terraform).
• Experience integrating or building solutions using LLMs or Amazon Bedrock.
• Agentic AI Experience: Hands-on experience building and deploying production-ready agentic applications or multi-agent workflows.
• AI Orchestration Frameworks: Deep familiarity with agentic frameworks such as LangChain, CrewAI, AutoGen, or LlamaIndex.
• Advanced AI Patterns: Solid understanding of LLM reasoning patterns, retrieval-augmented generation (RAG), function calling/tool execution, and agent memory management.
• Familiarity with containers (Docker) and orchestration (Kubernetes).

Preferred Qualifications:

• Experience with frontend automation tools (Playwright, WebdriverIO).
• Experience with distributed tracing and observability tools (CloudWatch, Datadog, OpenTelemetry).
• Knowledge of performance testing tools (k6, Gatling, Locust).
• Experience with event driven architectures (Kafka, SNS/SQS).
• Background in security testing or chaos engineering.
• Contributions to internal or open source testing frameworks.