Full Stack Developer // AI & Cybersecurity

threatER; Tysons (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Medical, Dental, Vision, Life

401k matching

Career progression

Unlimited PTO

Job summary

threatER is seeking a Full Stack Developer who functions as a Product Engineer. You’ll be a founding member of our AI-driven evolution, shipping production-ready software that integrates LLMs into our core security stack.

You will own end-to-end development, from backend performance (Go/C) to frontend experiences (Angular), and collaborate with C-level leadership to translate business goals into technical roadmaps.

Qualifications

• 4+ years of experience building and deploying complex systems in AWS.
• Hands-on experience with LLMs and GenAI frameworks like LangChain or PyTorch.
• Frontend: Angular, JavaScript, TypeScript; Backend: Python/Java/Go/C; Strong SQL.

Responsibilities

• Ship at velocity with rapid prototyping and production-ready code.
• Architect for scale with systems that handle massive data throughput.
• Own end-to-end development from backend to frontend (Go/C to Angular).
• Integrate AI features using LLMs/LangChain/PyTorch to enhance security tooling.

Skills

AWS

LLMs

GenAI

Angular

JavaScript

TypeScript

Python

Java

Go

C

SQL

LangChain

PyTorch

Tools

LangChain

PyTorch

LLM frameworks

Job description

We are looking for aFull Stack Developerwho functions like a “Product Engineer” someone who doesn’t just write code to tickets, but understands thewhybehind the product. You will be a founding member of our AI-driven evolution, moving with the urgency of a startup and the precision of a world-class security firm.

This is a high-impact, hands-on role focused on velocity and innovation. You will architect and ship production-ready software that integrates LLMs and Generative AI into our core security stack. You will work directly with our C-suite and a lean team of veteran developers to turn ambitious ideas into reality.

Core Responsibilities

We are looking for aFull Stack Developerwho functions like a “Product Engineer” someone who doesn’t just write code to tickets, but understands thewhybehind the product. You will be a founding member of our AI-driven evolution, moving with the urgency of a startup and the precision of a world-class security firm.

This is a high-impact, hands-on role focused on velocity and innovation. You will architect and ship production-ready software that integrates LLMs and Generative AI into our core security stack. You will work directly with our C-suite and a lean team of veteran developers to turn ambitious ideas into reality.

Core Responsibilities

• Ship at Velocity
• Rapidly prototype and deploy new features, moving from whiteboard concept to production-ready code in days, not months.
• Architect for Scale
• Design and implement scalable systems that handle massive data throughput without sacrificing development speed.
• Full-Stack Ownership
• Take complete end-to-end ownership of projects, from low-level backend performance (Go/C) to intuitive frontend experiences (Angular).
• AI Integration
• Build and refine AI-powered features using LLMs, LangChain, and PyTorch to give our customers an “unfair advantage” against cyber threats.
• Eliminate Friction
• Identify bottlenecks in our engineering lifecycle and implement tools/processes to improve overall team velocity.
• Collaborative Innovation
• Partner with C-level leadership to translate high-level business goals into technical roadmaps.

Key Candidate Attributes(The “Ideal Fit”)

You are a polyglot developer who is “tool-agnostic” and cares more about solving the problem than the specific language used.

• Experience
• 4+ years of experience building and deploying complex systems within AWS environments.
• The AI Edge
• Hands-on experience building with LLMs and GenAI frameworks (LangChain, PyTorch, or similar). You understand how to prompt, fine-tune, and integrate AI into functional software.
• Polyglot Proficiency
• You are comfortable working across a diverse stack:
• Frontend: Angular / JavaScript / TypeScript.
• Backend/Systems: Python, Java, Go, or C.
• Data: Strong SQL skills and experience with high-performance data structures.
• Product Mindset
• Proven track record of buildingcomplete systems. You understand how the frontend interacts with the API, and how the API interacts with the database/cloud layer.
• Executive Communication
• The ability to explain complex technical trade-offs to non-technical stakeholders and C-level executives.
• The “Startup” DNA
• A solutions-oriented mindset with a high degree of independence. You don’t wait for permission to fix a problem.

Why threatER?

• Impact
• You are building tools that protect critical infrastructure and global enterprises from sophisticated cyberattacks.
• High Agency
• We minimize red tape. If you have a better way to build something, you’ll have the autonomy to do it.
• Elite Team
• Work alongside highly experienced developers who value pragmatism, high engineering standards, and shipping.
• Location
• Join us in the heart of the Tysons, VA tech corridor in a collaborative, high-energy on-site environment.

Benefits We Offer

• Competitive market-based compensation
• Medical, Dental, Vision and Life
• 401k matching both your pre-tax and/or Roth elective contributions, dollar for dollar, up to 4% of your eligible pay. Immediately eligible to participate upon employment and contributions are 100% vested.
• Career progression and internal mobility opportunities
• Unlimited PTO