Principal cybersecurity lead

Ready to make connectivity from space universally accessible, secure and actionable? Then you’ve come to the right place!

E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems.

We’re intentional, we’re unapologetically curious and we’re 100% committed to innovate space-based communications and deliver actionable intelligence that will expand global economies, protect space and our planet and enhance our overall quality of life.

What is this role:

We are seeking a deeply technical, hacker-savvy Principal Cybersecurity Lead to defend the company as an active operator, security engineer, and incident leader. This person will understand how modern attackers discover, enter, persist, move laterally, exfiltrate data, and hide. They will continuously track active threat campaigns, newly exploited vulnerabilities, attacker tools, and changes in the global threat landscape, then convert that intelligence into practical defenses.

This is not a policy-only, advisory-only, or dashboard-only position. The successful candidate will make consequential security decisions, personally investigate suspicious activity, write production-quality detection and response code, interrogate network and endpoint telemetry, validate controls through authorized adversarial testing, and drive incidents to a technically sound conclusion. They must be willing to go deep enough to understand the vulnerability, exploit path, affected systems, attacker behavior, business impact, containment choice, and permanent corrective action.

What you will do:

• Threat intelligence and attacker awareness
• Enterprise security architecture and attack-surface ownership
• Detection engineering, coding and automation
• Threat hunting, insider risk and incident response
• Vulnerability and exposure management
• Leadership and security operations
• Decision ownership and technical depth

What you will bring to this role:

Substantial hands-on experience defending complex corporate environments and leading high-severity investigations from initial signal through containment and root cause.

Demonstrated hacker mindset and practical knowledge of exploitation, persistence, credential theft, identity attacks, lateral movement, evasion, command-and-control, and exfiltration - applied only in authorized and ethical contexts.

Deep understanding of TCP/IP, DNS, HTTP/TLS, routing, segmentation, firewalls, proxies, VPNs, wireless, endpoint internals, Windows and Linux, identity systems, cloud services, and enterprise logging.

Strong programming ability and evidence of building security detections, analytics, automation, or investigation tooling used in real operations.

Expertise with SIEM, EDR/XDR, NDR, IAM, cloud security telemetry, vulnerability tooling, packet/log analysis, and digital-forensics methods; vendor-specific experience is less important than first-principles understanding.

Ability to reason from incomplete or conflicting evidence, form and test hypotheses, quantify confidence, and recognize when an alert is noise, an isolated event, or part of a larger campaign.

Demonstrated record of making high-impact security decisions under time pressure and personally validating the technical evidence rather than delegating all analysis to vendors or junior staff.

Sound judgment regarding privacy, employee monitoring, legal authorization, evidence preservation, disclosure, and the boundary between defensive validation and unauthorized access.

Clear written and verbal communication with engineers, executives, legal counsel, employees, customers, and external responders during high-pressure events.

Bonus points:

Experience in a technology company with valuable intellectual property, distributed operations, sensitive customer data, or high-availability infrastructure.

Defense-industry cybersecurity experience is a plus, including supporting CMMC readiness and self-assessment, collecting and maintaining defensible control evidence, tracking remediation, and completing authorized self-reporting accurately and on time.

Experience establishing or materially improving a threat-hunting, detection-engineering, incident-response, or security-operations function.

Background in reverse engineering, malware analysis, exploit analysis, cloud incident response, identity forensics, or network protocol analysis.

Experience with threat-informed defense, purple teaming, security data engineering, and detection-as-code.

Relevant research, open-source security contributions, conference work, responsible disclosures, certifications, or competitive security experience - valued as evidence, not substitutes for demonstrated capability.

Why E-Space is right for you:

As a member of our team, you will play a crucial role in driving our success. Our team members have a strong sense of dedication and responsibility; this includes a strong commitment to our mission to create an entirely new suite of global capabilities to improve lives, business efficiencies and build a smarter planet. This means that there will be times when extra hours, including nights and weekends, may be needed to meet critical deadlines and mission goals. In return, we offer a dynamic work environment with opportunities for professional growth and development and the chance to make a meaningful impact in a high-growth industry.

We want you to make the most of your journey at E-Space. That’s why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space:

• An opportunity to really make a difference
• Sustainability at our core
• Fair and honest workplace
• Innovative thinking is encouraged
• Competitive salaries
• Continuous learning and development
• Health and wellness care options
• Financial solutions for the future
• Optional legal services (US only)
• Paid holidays
• Paid time off