Fibertek, Inc.

Full Stack Engineer (AI Focused)

Fibertek, Inc.  •  Herndon, VA (Onsite)  •  3 months ago
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Job Description

About the Role

We’re building an AI-native platform designed to transform legacy enterprise systems into modern, cloud-native applications. As part of our core product team, you’ll work directly with large language models (LLMs), prompt engineering, and agent-based orchestration to bring intelligent automation to some of the most complex refactoring challenges in tech today.

This is a unique opportunity to join a team that doesn’t just integrate with AI — we build with it.

What You’ll Do

  • Build full-stack features across our frontend (React), backend APIs (Node.js/Python), and AI orchestration layer

  • Design developer tools, IDE extensions, and sidecar services for human-AI collaboration

  • Implement prompt chaining, embedding search, and LLM integration using Amazon Bedrock (Titan, Claude)

  • Apply techniques like RLHF and GRPO to fine-tune LLMs and improve agent behavior

  • Contribute to a scalable cloud-native architecture using AWS EKS, Postgres, S3, OpenSearch, and Neo4j

  • Collaborate across engineering and product to iterate quickly in a fast-paced, mission-driven environment

Who You Are

  • You’re a builder with experience across the full stack (React, TypeScript, Node.js, or Python)

  • You’re curious about the intersection of AI, developer productivity, and legacy modernization

  • You’ve worked with LLMs and prompt engineering, or are eager to learn and experiment

  • You have a hacker’s mindset and a product-builder’s instinct

  • You thrive in environments where experimentation, ownership, and velocity are key

Qualifications

Required:

  • 2+ years of professional experience in software engineering

  • Proficiency with React and either Python or Node.js

  • Strong understanding of API design and modern web development practices

  • Bachelor's degree in Computer Science or related field (or equivalent experience)

Preferred:

  • Experience with Kubernetes (especially AWS EKS)

  • Hands-on experience with LLMs, embeddings, or AI/ML pipelines

  • Familiarity with cloud infrastructure and distributed systems

Fibertek, Inc.

About Fibertek, Inc.

Fibertek, Inc. develops advanced lasers and electro-optic systems for space and defense applications. Our customers include NASA, the U.S Department of Defense, and several of the leading aerospace prime contractors. With over 30 years of experience developing advanced fiber and bulk solid-state laser and lidar systems, Fibertek is a globally recognized leader and pioneer in our field. Fibertek's 50,000 sq. ft. state-of-the-art facility includes 34 Class IV laser firing labs, electronics labs, wet labs, optical receiver labs, chemical labs and a NASA-certified in-house printed circuit board assembly lab. Fibertek is a fully vertically integrated company with an experienced staff of mechanical, optical, and electrical engineers and scientists, specializing in the development of custom lasers, lidars, 3-D imaging systems, including ground-based, airborne and space-based systems. Our team takes pride in the devices and systems we design and build, allowing us to be at the forefront of advanced laser and sensor system technology.

Industry
Aviation & Aerospace
Company Size
201-500 employees
Headquarters
Herndon, VA
Year Founded
1983
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