Principal Platform Engineer, Horizon3
$275-350k
Autonomous security solutions
Job no longer available
Autonomous security solutions
201-500 employees
Job no longer available
$275-350k
201-500 employees
Company mission
To help find and fix attack vectors before attackers can exploit them.
Role
Who you are
- 15+ years of experience in DevOps, Platform, or related role
- Ability to manage concurrent initiatives and use effective judgment in prioritization and time management
- Creative, self-motivated, highly energetic, detail and results oriented
- Excellent analytical/problem solving ability
- Strong influence, negotiation, and relationship management skills
- Strong understanding and experience with solution design and flow
- Strong technical documentation and communication
- Subject matter expert on platform design and flow
- Experience in FedRAMP, CC SRG, NIST 800-53, or Authority to Operate (ATO) process
- Bachelors in Computer Science or STEM
- MS in Computer Science preferred
- Cloud Technologies include:
- AWS GovCloud Core Services
- Compute (EC2, Lambda)
- Storage (S3, EBS, EFS)
- Database (AuroraRDS - Postgres)
- Networking (VPC, VPCe, TGW, RT53)
- Event-Driven Architecture (SQS, EventBus, Lambda, SNS)
- Security (IAM Roles and Policies, KMS, Cloudtrail)
- User Management (Cognito, Organizations, SSO)
- Certifications (Within 1st year)
- CISSP or CASP with AWS Security Spec
- HashiCorp Terraform
- AWS Professional Level
- CKA , CKAD or CKAS
Desirable
- Tools (7+ years with each is ideal):
- Gitlab CI/CD
- SSO (OIDC, SAML, Okta, Social Sign-ins)
- Infrastructure as Code (Terraform, Packer, Crossplane)
- Secret Management (HashiCorp Vault, AWS Secret Manager)
- Configuration Management (Ansible)
- Scripting languages (Python, BASH)
- Programming Languages (Python, JS, GoLang)
- Container Engines (Docker)
- Kubernetes (RKE2, K3S, EKS)
- Application Performance Metrics (Datadog, Splunk)
What the job involves
- We are looking for a Principal Platform Engineer to help lead the deployment and operation of our NodeZero platform. Working closely with our platform architect, your goal will be to help bridge the gap between the our commercial platform and the new federal platform running in AWS GovCloud
- Your expertise in AWS, AWS GovCloud, kubernetes, cloud infrastructure, and tools like Terraform, Ansible, and GitLab CI will be essential in creating scalable and secure systems that enable innovative experimentation. Join us in shaping the future of our platform, driving growth and empowering developers with a flexible and efficient environment
- Implement highly scalable, secure, resilient cloud-native application platforms that host core company applications, toolings, and other services vital to enabling our product to perform in AWS GovCloud
- Work with the core platform team to modify current "golden paths to production," to account for the changes in Federal compliance frameworks like FedRAMP, DoD Cloud Computing Security Reference Guide (CC SRG)
- Be the advocate for change in development and deployment processes that align with federal compliance to ensure the engineering organization can maintain high velocity
- Identify gaps within the current processes and orchestrate the needed change for developers
- Design and implement tooling for the internal platform to collect telemetry data used to gauge its effectiveness in supporting H3's engineers. This includes both technical metrics and user interviews documented in a centrally available service
- Help create an effective documentation culture within the Systems Engineering team (Confluence, Gitlab pages)
- Participate in effective project management and work allocation (Jira, Agile Concepts)
- Help development teams convert manually built projects into automated infrastructure as code projects that meet best-in-class programming standards
- Develop, Test, and Publish core infrastructure modules for the Systems Engineering team to implement across our cloud environments. Also help develop IAC modules for other engineering teams to consume
- Be a champion of automation for infrastructure-as-code, platform operations, and overall CI/CD methodologies. We are leading the charge for building automated infrastructure/software pipelines for our engineering team
- Research new technologies for automation, application hosting, and improving infrastructure provisioning
- Provide technical leadership to the team and company, career mentorship to more junior engineers, and act as Technical Lead on various projects and initiative across the organization
Our take
In an era marked by escalating cyber threats and data breaches, safeguarding digital assets has become a high priority across all industries. Amid this landscape, Horizon3.ai stands out as an autonomous security solution by addressing the critical need for robust cybersecurity.
At the heart of Horizon3.ai's mission is NodeZero™, a platform designed to elevate proactive security measures. Using this, customers can verify their security posture and identify potential vulnerabilities through self-service. This proactive approach to cybersecurity effectively thwarts potential exploits and ensures the integrity of their digital infrastructure.
With 2025 funding in hand, the company is poised to further its ambition to develop into an industry-leading cybersecurity company. The infusion of funds will be channelled towards expanding its partner network, refining its offerings and entering the US government market. Horizon3 aims to establish itself as a pivotal player in the evolving autonomous security landscape, a highly lucrative market valued at $80 billion.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
-8% employee growth in 12 months
Company
Funding (last 2 of 6 rounds)
Jun 2025
$100m
SERIES D
Aug 2023
$40m
SERIES C
Total funding: $187m
Company benefits
- Growth Opportunities: Be part of a dynamic and growing team with numerous career advancement opportunities
- Innovation-Driven Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking
- Flexible Work Environment: Enjoy the convenience and work-life balance that comes with remote work
- Inclusive and Diverse Team: We value diversity and promote an inclusive culture where everyone can thrive
Company HQ
SoMa, San Francisco, CA
Leadership
Snehal Antani
(Co-Founder & CEO)Graduated from the Rensselaer Polytechnic Institute with an MS in Computer Science. Previously worked at IBM as a Lead Architect, at GE Capital as the CIO of Distribution Finance and Splunk as the SVP & GM of Business Analytics & IoT.
Anthony Pillitiere
(Co-Founder)Graduated from the University of Maryland with a Bachelor's Degree in Computer Systems Networking and Telecommunications. Previously worked at the United States Air Force in multiple roles, including Deputy Chief Technology Officer.
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