Senior Cloud Security Engineer

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 are seeking a skilled Sr. Cloud Security Engineer with strong focus on AWS to join our growing team. The ideal candidate will be a self-starter with a "learn it all" attitude and a strong desire to stay current with the latest trends and technologies in the field. In this role, you will be responsible for designing, implementing, maintaining, and validating security solutions for our AWS cloud infrastructure. Your role will involve working closely with development and engineering teams to ensure secure cloud architecture and implementation.

This role will be responsible for…..

• Strong experience with modern SDLC tools and branching strategies

• Design and implement security controls across our AWS environment (e.g., IAM, SCPs, VPC security, S3 bucket policies, security groups, key management, logging).

• Continuously monitor and improve cloud posture by managing and tuning services like GuardDuty, Security Hub, AWS WAF, CloudTrail, and Inspector

• Develop and maintain security policies, standards, and procedures to ensure compliance with industry standards such as SOC2, GDPR, ISO27001, FedRAMP, etc.

• Evaluate and recommend new security technologies, tools, and techniques to improve the security posture of our AWS cloud infrastructure.

• Implement and maintain Gitlab CI/CD pipelines and tools for automated security testing and scanning of AWS resources.

• Conduct threat modeling, architecture reviews, and risk assessments for cloud deployments and new features

• Implementing security features and monitoring tools, performing periodic security assessments to verify best practice configuration and secure systems hardening in the cloud

• Responding swiftly to new and emerging security threats and vulnerabilities with the cloud

• Where required, investigate suspected attacks and help manage security incidents including providing post-mortem analysis, identify causes, develop solutions and preventive measures

• Implement process and technologies that reduce cloud security deficiencies and help develop creative reporting mechanisms including metrics/key themes that communicate risk to business owners and leadership

• Participate in development and implementation of cloud security standards and cloud service certification

• Provide subject matter expertise to assist with building detective controls for malicious activity within the AWS environment.

• Define and enforce identity and access management (IAM) best practices, including least privilege policies, federated identity, role-based access control (RBAC), and automated remediation.

• Demonstrate a commitment to integrity, process improvement, and customer satisfaction

What You’ll Bring

• In-depth knowledge of Terraform and Gitlab

• Deep knowledge of AWS services and security architecture

• Strong understanding of AWS security and data security principles

• Experience with threat modeling and risk assessments

• Excellent communication skills and ability to explain technical concepts to non-technical stakeholders

• Ability to work independently and as part of a team, and a strong sense of ownership and accoun