AI Agent Harness Engineer — Software Engineer I

Jobtailor; Poquonock Bridge (CT); On-site; USD 120,000 - 160,000; Full time

Job summary

Jobtailor is seeking a skilled software engineer to build and operate agent harness capabilities for enterprise use. You will integrate agents with tools and APIs, ensure reliability under load, and advance test automation while meeting security and observability requirements.

Collaborate with architects and product teams to design solutions, own assets end-to-end, and document work for reuse. Strong Python/TypeScript skills and cloud experience are essential.

Qualifications

• Bachelor's degree in computer science, engineering, or related field.
• 3+ years of hands-on software development experience in production.
• Proficiency in Python.
• Exposure to TypeScript for AI integration work.
• Hands-on experience building generative AI or agentic applications.
• Experience with agentic coding tools.
• Familiarity with orchestration loops, context/memory management, and guardrails.
• Hands-on experience with AWS and/or Azure cloud services.
• Experience with containerization and orchestration tools (Kubernetes).
• CI/CD tooling such as GitHub Actions or Jenkins.
• Strong written and verbal communication.
• Experience with AWS AgentCore or similar agentic runtimes and harness platforms.
• Experience with Strands Agents, LangGraph, or similar open-source frameworks.
• Terraform/CDK/Helm for cloud infra provisioning.
• Observability tooling and distributed tracing in production.
• 2 additional years of software engineering experience.

Responsibilities

• Build and operate agent harness capabilities used by enterprise engineering teams.
• Integrate agents with tools, APIs, and systems; ensure reliability under real load.
• Advance test automation and deliver code meeting security, observability, scalability and recoverability.
• Contribute to application and solution design with architects, product owners, and consuming teams.
• Own assets end to end, including currency, vulnerability management, and production readiness.
• Document work so others can build on it.
• Deepen expertise in owned technologies.
• Perform other duties as assigned.

Skills

Python proficiency

Generative AI app development

AWS cloud services

Kubernetes containerization

CI/CD tooling

Communication skills

Education

Bachelor's degree in Computer Science/Engineering or related field

Equivalent practical experience

2+ years software engineering experience

Tools

AWS AgentCore

Strands Agents

LangGraph

GitHub Actions

Jenkins

Terraform

CDK

Helm

Kubernetes tooling/observability

Job description

Jobtailor is seeking a skilled software engineer to build and operate agent harness capabilities for enterprise use. You will integrate agents with tools and APIs, ensure reliability under load, and advance test automation while meeting security and observability requirements.

Collaborate with architects and product teams to design solutions, own assets end-to-end, and document work for reuse. Strong Python/TypeScript skills and cloud experience are essential.