Security Engineer

Join a high-impact cybersecurity engineering team focused on building and supporting production-ready services that help advance AI-powered initiatives across enterprise platforms. This hands-on role is ideal for an experienced engineer who enjoys solving complex problems, delivering clean and reliable code, and working independently within established architecture and engineering standards. Responsibilities

• Design, build, test, deploy, and support scalable back-end services, APIs, and related platform capabilities
• Develop production applications using Java or Kotlin, ideally in a Spring Boot environment
• Use Python to support automation, engineering tools, back-end services, and AI-related capabilities
• Design and integrate microservices and REST APIs within enterprise systems
• Translate requirements into actionable engineering tasks and deliver moderately complex workstreams
• Troubleshoot issues across development and production environments and implement durable fixes
• Work with containerized applications in Docker and Kubernetes environments
• Contribute to CI/CD, automated testing, code quality, and software delivery practices
• Participate in pull requests, code reviews, branching, and collaborative development using GitHub
• Identify technical risks, dependencies, and blockers, and help drive work forward independently
• Provide technical guidance and support to help unblock other engineers when needed

• 7+ years of hands-on software engineering experience supporting production applications and back-end services
• Strong development experience with Java or Kotlin, preferably in Spring Boot
• Proven experience designing and building microservices and REST APIs
• Hands-on Python development experience for automation, tooling, back-end services, or AI-related work
• Experience with Docker and Kubernetes in development, deployment, or production-support environments
• Working knowledge of CI/CD pipelines and modern software delivery practices
• Strong Git and GitHub workflow experience, including branching, pull requests, and code reviews
• Ability to independently troubleshoot complex application or service issues and deliver production-quality solutions
• Capability to own moderately complex engineering work within established technical direction

Preferred Skills

• Experience building or integrating AI-enabled applications, AI agents, or AI/ML services
• Background working with cybersecurity platforms, products, or engineering teams
• Experience with event-driven architectures and messaging technologies such as Kafka or Pub/Sub
• Hands-on experience with PostgreSQL, MongoDB, or similar relational or NoSQL data stores
• Experience using GitHub Actions or comparable CI/CD automation tools
• Experience delivering software in large-scale enterprise environments
• Exposure to modern web application development, design systems, accessibility, or state management
• Strong communication, collaboration, and problem-solving skills

Horizontal is committed to fostering an inclusive workplace where diverse perspectives, backgrounds, and experiences are valued. We believe equity and belonging strengthen teams, improve innovation, and help create a better experience for everyone involved in the hiring process and beyond.