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Haystack

Software Developer

North America

September 13, 2026 at 8:59 PM

✨ AI summary

Location

  • United States

Programming Languages

  • HTML
  • CSS
  • JavaScript
  • Python
  • Java
  • NodeJS

Frameworks

  • Mendix
  • LangChain
  • LangGraph
  • LangSmith

Cloud Services

  • AWS

Experience Level

  • 2-5 years
We are working with a leading technology integrator providing full life cycle services and solutions in technical, engineering, intelligence, and enterprise information technology markets. This organization is at the forefront of redefining ingenuity through deep customer and domain knowledge, enabling the delivery of systems engineering and integration for large, complex projects within the U.S. federal government.

The Role

  • Design, develop, and maintain front-end web applications using modern web technologies and low-code platforms
  • Build and style responsive, user-friendly interfaces within the Mendix platform
  • Develop and maintain backend REST services and business logic to support platform capabilities and agentic AI workflows
  • Contribute to the development of agentic AI components, including integration with frameworks such as LangChain, LangGraph, and LangSmith
  • Support development and deployment of cloud-based services and infrastructure on AWS
  • Develop and maintain Infrastructure as Code (IaC) using tools such as Terraform, Packer, and Terragrun

What You'll Need

  • Bachelor's degree in Computer Science, Software Engineering, or a related field with 2 years of experience; or Master's degree with 0 years of experience
  • 2-5 years of professional software development experience
  • Experience building front-end web applications using HTML, CSS, and JavaScript
  • Experience developing backend services and APIs using languages such as Python, Java, or NodeJS
  • Strong problem-solving skills and ability to work effectively in a fast-paced, collaborative agile environment
  • Ability to obtain a Secret clearance and pass the CompTIA Security Plus Examination within 90 days of employment

What's On Offer

  • Opportunity to work on a next-generation Agentic AI Platform
  • Full development stack exposure: front-end, backend, and cloud infrastructure
  • Collaborative environment with AI/ML engineers, architects, and product owners
  • Support for professional development with team training on Mendix

Apply via Haystack today!