Full Stack Developer (AI & Cybersecurity)

Career

Full Stack Developer (AI & Cybersecurity)

We are looking for a Full Stack Developer who functions like a "Product Engineer"-someone who doesn't just write code to tickets, but understands the why behind 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.

Location

Tysons, VA with ability to travel

Work Setup

Onsite

Employment Type

Full-time

Experience Level

Mid-level

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Core Responsibilities

• Ship at VelocityRapidly prototype and deploy new features, moving from whiteboard concept to production-ready code in days, not months.
• Architect for ScaleDesign and implement scalable systems that handle massive data throughput without sacrificing development speed.
• Full-Stack OwnershipTake complete end-to-end ownership of projects, from low-level backend performance (Go/C) to intuitive frontend experiences (Angular).
• AI IntegrationBuild and refine AI-powered features using LLMs, LangChain, and PyTorch to give our customers an "unfair advantage" against cyber threats.
• Eliminate FrictionIdentify bottlenecks in our engineering lifecycle and implement tools/processes to improve overall team velocity.
• Collaborative InnovationPartner 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.

• Experience4+ years of experience building and deploying complex systems within AWS environments.

• The AI EdgeHands-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 ProficiencyYou 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 MindsetProven track record of building complete systems. You understand how the frontend interacts with the API, and how the API interacts with the database/cloud layer.

• Executive CommunicationThe ability to explain complex technical trade-offs to non-technical stakeholders and C-level executives.

• The "Startup" DNAA solutions-oriented mindset with a high degree of independence. You don't wait for permission to fix a problem.

Why threatER?

• ImpactYou are building tools that protect critical infrastructure and global enterprises from sophisticated cyberattacks.
• High AgencyWe minimize red tape. If you have a better way to build something, you'll have the autonomy to do it.
• Elite TeamWork alongside highly experienced developers who value pragmatism, high engineering standards, and shipping.
• LocationJoin 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

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About threatER

At threatER, we are redefining the front lines of cybersecurity. We don't just monitor threats; we stop them. We are building a modern, AI-enabled, globally scaled SaaS platform that automates the enforcement of cyber intelligence at a massive scale.