
Principal Software Engineer
Posted Oct 15

Posted Oct 15
This is a fully remote position, open to applicants in Virginia.
• Design, develop, and sustain front-end web applications utilizing contemporary web technologies.
• Create and style responsive web applications to deliver a refined and effective user experience.
• Develop and support backend REST services and business logic that underpin platform functionalities and agentic AI workflows.
• Contribute to agentic AI components leveraging frameworks such as LangChain, LangGraph, and LangSmith.
• Aid in the development and deployment of cloud-based services and infrastructure on AWS, including OpenSearch, SageMaker, Lambda, and SQS.
• Develop and maintain Infrastructure as Code utilizing Terraform, Packer, and Terragrunt.
• Collaborate with AI/ML engineers, architects, and product owners to convert requirements into scalable, production-ready solutions.
• Assist in testing, debugging, and optimizing performance.
• Maintain documentation for system architecture, APIs, and development processes.
• Offer feedback and mentorship to junior developers.
• Bachelor's degree in Computer Science, Software Engineering, or a related discipline with 9 years of experience, or a Master's degree with 7 years of experience.
• Successful completion of the CompTIA Security+ Examination within 270 days of employment.
• Must be a U.S. Citizen without dual citizenship.
• Capability to obtain a Secret Security clearance.
• Experience in building front-end web applications using HTML, CSS, and JavaScript.
• Experience in developing backend services and APIs, including RESTful service design and the implementation of complex business logic, using Python, Java, or NodeJS.
• Strong analytical and problem-solving abilities.
• Ability to work efficiently in a fast-paced, collaborative agile environment.
• Preferred: Familiarity with ReactJS, LangChain, LangGraph, LangSmith, multi-agent orchestration, autonomous workflow design, LLM integration patterns, AWS, OpenSearch, SageMaker, Lambda, SQS, Terraform, Packer, Terragrunt, and DevSecOps practices.
• Equal Opportunity Employer.
• Remote work opportunity available within the United States.
Cosuno
ECOMMERCE ONE
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