Federal Back-End Engineer
Horizon3 AIResponsibilities
- Develop core product features using ETL and GraphQL for data processing and retrieval
- Design and implement backend GraphQL APIs for product data interactions
- Build and maintain ETL pipelines for efficient data processing and analytics
- Collaborate with frontend engineers to present data clearly and improve user experience
- Contribute to user-facing product launches, platform enhancements, and stability
- Own and manage concurrent initiatives while prioritizing effectively
- Create technical documentation and independently or collaboratively implement solutions
- Mentor junior and mid-level engineers
Requirements
- Bachelor’s degree in Computer Science, Computer Engineering, or a related field
- At least 7 years of professional software engineering experience using modern object-oriented or functional languages
- Experience with cloud platforms such as AWS, Azure, or GCP
- Experience with Docker and Kubernetes
- Experience building and troubleshooting federally compliant systems such as FedRAMP, IL4/5/6, and classified workloads
- Expert proficiency in SQL
- Current security clearance or ability to gain and maintain a TS-level clearance
- Experience with relational and graph database architectures, including PostgreSQL and Neo4j, is preferred
- Experience building GraphQL backends is preferred
- Experience managing production infrastructure and building platform capabilities for internal teams is preferred
- Experience using AI-enabled development tools is preferred
- Ability to mentor junior and mid-level engineers and collaborate effectively with designers, developers, and product managers
Benefits
- Fully remote, 100% remote work arrangement
- Up to 5% travel may be required; strong preference for candidates in the Washington, DC area
- Health, vision, and dental insurance for employees and families
- Flexible vacation policy
- Generous parental leave
- Career development and growth opportunities
- Inclusive and collaborative work culture
Tech Stack
Categories
About Horizon3 AI
Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up? And, how do we withstand the onslaught of AI-powered attacks? Horizon3.ai’s NodeZero® shifts the advantage from attackers to defenders by giving organizations the power to fight AI with AI. The Proactive Security Platform autonomously tests your defenses at machine speed, safely finds and prioritizes exploitable attack paths, instantly verifies fixes, and drives a continuous loop so you can prove you’re resilient, not just hope you are. NodeZero, the World’s Best AI Hacker™, was built by an elite team of U.S. cyber veterans and has honed its skills over 225K production-safe tests, more than all manual pentests in history. More than 5,000 organizations including the NSA, CISA, Fortune 100 giants, and major healthcare providers trust Horizon3.ai to prioritize what matters and prove they’re ready for what’s next. Horizon3.ai has been recognized by Fast Company as one of the World’s Most Innovative Companies in 2026. The company ranked #3 overall on the 2025 Deloitte Technology Fast 500 and was named the #1 cybersecurity company on the Inc. 5000 in 2025. It has also been named to the Fortune Cyber 60 in both 2023 and 2025 and is a two-time Black Unicorn Award winner.