Principal Engineer, Tech Lead – Integrations & APIs

🕒 July 17

🇺🇸 United States – Remote

💵 $213k - $273k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 21%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Horizon3.ai

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2019

🔒 Cybersecurity

🤖 Artificial Intelligence

☁️ SaaS

Cybersecurity • Artificial Intelligence • SaaS

Horizon3. ai is a cybersecurity company that specializes in autonomous penetration testing through its platform, NodeZero. The company's mission is to proactively identify and address attack vectors before they can be exploited, allowing organizations to continuously assess their security posture across various environments including cloud, IoT, and on-premises systems. Founded by veterans from the US Special Operations and National Security sectors, Horizon3. ai offers a self-service SaaS solution that provides organizations with insights into their security vulnerabilities without requiring persistent or credentialed agents.

📋 Description

• Own the end-to-end technical vision for the Integration team and its supporting services, from initial concept through implementation, iteration, and long-term evolution. • Partner with cross functional stakeholders to translate ambiguous product and business goals into concrete technical strategy, architecture, and execution plans for the Integration team. • Contribute production code, setting the standard for design quality, code quality, and operational rigor. • Lead architectural decisions for scalable backend systems that balance velocity, reliability, maintainability, extensibility, and operability. • Drive execution across multiple concurrent projects and initiatives, identifying risks, dependencies, and tradeoffs early and helping the team sequence work effectively. • Partner closely with Product, Engineering leadership, Design, and adjacent engineering teams to deliver cross-functional initiatives and ensure technical decisions reflect both business context and customer needs. • Communicate complex technical concepts clearly to both technical and non-technical audiences, including leadership stakeholders. • Set and continually raise the technical bar through architecture reviews, code reviews, technical writing, and strong engineering judgment under ambiguity. • Mentor and develop engineers on the team by providing thoughtful feedback, technical coaching, and frameworks that help others do the best work of their careers.

🎯 Requirements

• Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience. • 10+ years of professional software engineering experience. • Experience building backend services using at least one modern language, such as Python, Go, Java, TypeScript, or similar. • Experience working with SQL and at least one relational database in production. • Experience building backend services on a cloud platform (AWS, GCP, or Azure), and familiarity with Docker and containerized applications.

🏖️ Benefits

• Health, vision & dental insurance for you and your family • Flexible vacation policy • Generous parental leave • Equity package in the form of stock options • Growth opportunities within a dynamic and growing team • Work in a collaborative environment that encourages creativity and out-of-the-box thinking