Senior Web Developer

Get to Know Us

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.

We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and false positives, resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

As a remote first company, we require minimum 25Mbps consumer grade broadband connection.

What You’ll Do

We’re looking for a Web Developer to play a pivotal role in the design, development, and evolution of our marketing web platforms. This is more than just a coding role, you’ll lead initiatives with strategic importance, manage cross-functional collaboration, and serve as a key voice in technical architecture, scalability, technical SEO strategy, and user experience. You are someone with deep expertise in modern web development, a strong understanding of business context, and a passion for mentoring others and shaping a healthy, innovative team culture.
Initially, you’ll help build and manage WordPress sites, primarily leveraging Bricks Builder, but the larger opportunity is to architect and develop standalone web applications as our needs evolve. This role is perfect for a developer who cares about clean architecture, and wants to influence not just the project builds, but also our future tech stack.

This is a remote-first position, open to applicants in the United States. We value asynchronous communication, proactive ownership, and collaborative problem-solving.

This role will be responsible for

• Leading complex, high-impact web projects end-to-end, from scoping through deployment, balancing speed, quality, and risk with minimal oversight.

• Serve as a domain expert in modern web architecture, component libraries, frameworks, SEO best practices, and CMS systems, actively influencing technical direction.

• Collaborate cross-functionally with stakeholders in design, content, marketing, and product to deliver web experiences that drive business outcomes and align with search engine visibility goals.

• Implement and optimize technical SEO elements, including structured data, canonical tags, meta tags, sitemaps, robots.txt, and crawlability enhancements.

• Architect and maintain performant, accessible, and responsive front-end systems (primarily Bricks) to integrate with dynamic backend systems, with a focus on Core Web Vitals and page speed.

• Plan and prototype APIs and backend architectures for future standalone web applications.

• Communicate effectively across the organization, delivering timely, concise updates and feedback to teammates and stakeholders alike.

• Promote and model a culture of accountability, collaboration, and continuous learning, actively mentoring more junior team members.

• Recognize cultural misalignment in work or behaviors and guide teams in resolving it constructively.

What You’ll Bring

• 5 - 7+ years of professional experience building and deploying modern web applications.

• Advanced expertise in PHP, JavaScript, HTML5, CSS/SASS, and component-based architecture.

• Experience with Alpine.js, or similar front-end frameworks; experience with static site generation (SSG) and server-side rendering (SSR).

• Deep understanding of web performance optimization, accessibility (WCAG), and technical SEO fundamentals—including structured data, rendering behavior, indexation, and on-site optimization.

• Proven experience with managing web properties for SEO performance and collaborating closely with marketing stakeholders to support content discoverability.

• Ability to use web crawlers, auditing tools, and performance diagnostics to proactively identify and address SEO and UX issues.

• Experience leading projects with cross-functional impact and guiding decisions based on both technical and business considerations.

• Strong organizational skills, with the ability to manage multiple priorities and self-direct without micromanagement.

• Demonstrated ability to influence beyond the team and contribute meaningfully to engineering culture, hiring, and process improvement.

Education and Experience

• Bachelor’s degree in Computer Science, Software Engineering, Web Development, or a related technical discipline; equivalent practical experience will also be considered.

• 5 - 7+ years of professional experience in web development, with a proven track record of building scalable, secure, and high-performance digital platforms.

• Demonstrated success working in B2B SaaS, enterprise software, or cybersecurity environments where precision, performance, and trust are paramount.
  

What Sets You Apart?

• Hands-on experience with tools like Google Lighthouse, Hotjar, Ahrefs, SEMrush, or Screaming Frog.

• Detail-oriented and passionate about crafting smooth, pixel-perfect front-end experiences.

• Excited to help evolve a young, growing development practice, not just follow a set process.

• Able to clearly explain technical decisions and trade-offs to non-technical teammates.

• Prior success working in globally distributed teams or startup/scale-up environments.

• Open-source contributions or technical writing that showcases your thought leadership.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

• Base salary range: $155,429 - $172,699 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: This role may also be eligible for an equity package (in the form of stock options). If any other compensation benefits apply, they will be discussed during the interview process.

Perks of Horizon3.ai

• Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.

• Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.

• Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.

• Remote Work: We are a 100% remote company. Enjoy the flexibility to work in the way that supports you and brings out your best.

• Competitive Compensation: We offer competitive salary and benefits which includes health, vision & dental care for you and your family, a flexible vacation policy, and generous parental leave.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Application Note

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