Senior Offensive Security Engineer

United States Digital Space LLC; Bellevue (NY); On-site; USD 187,000 - 220,000; Full time

Benefits offered by this job

Health insurance

Equity

Wellness allowance

Fertility benefits

Mental health support

Paid time off

Catered meals

Job summary

United States Digital Space LLC is seeking a Staff Offensive Security Engineer to plan, execute red team assessments across applications, infrastructure, and physical environments, and strengthen detection and response with engineering and security collaboration.

The role focuses on threat modeling, tooling, and incident readiness, requiring strong communication and 6+ years in red team operations. In-person work is expected at multiple US offices (Bellevue, NY, Denver, Menlo Park).

Qualifications

• 6+ years of red team or advanced penetration testing
• Mentoring or supporting security engineers
• Strong written and verbal communication across engineers to executives
• Deep understanding of network protocols (DNS, TCP/IP)
• Experience with MacOS and Linux
• Experience with modern stack attacks (CI, containers, cloud) and hardening guidance
• Familiarity with MITRE ATT&CK and security fundamentals of access and identity
• Ability to work with distributed teams
• Proactive in fixing security issues, not just identifying them

Responsibilities

• Plan and execute red team exercises and long-term assessments
• Perform threat modeling and penetration testing across apps, infrastructure, and corporate environments
• Develop scripts/tools to automate security testing
• Lead security incidents when findings require it
• Partner with detection and response teams to improve incident readiness
• Communicate findings clearly to engineers and executives
• Mentor Offensive Security team members
• Drive adversarial simulations with security teams

Skills

Red team operations

Mentoring security engineers

Threat modeling

Security testing

Technical communication

Cloud security

Python/Go/JavaScript

CI/CD & orchestration

Defense knowledge (IDS/IPS)

ATT&CK framework

Distributed teamwork

Tools

Kubernetes

Docker

AWS

GCP

CI/CD tooling

IDS/IPS

Job description

Join us in building the future of finance.

Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading.

About the team + role

We are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for thoughtful problem-solvers and builders who want to make a meaningful contribution. the company is a place where people take ownership of their work and help improve financial access for all. We operate with high standards, clear accountability, and a strong focus on security and ethics in everything we build!

The Red Team’s mission is to identify and reduce real-world security risks across the company by simulating adversary behavior and testing defenses. As a Staff Offensive Security Engineer, you will plan and execute security assessments across applications, infrastructure, and physical environments, and partner closely with engineering and security teams to strengthen detection and response capabilities. You will help prioritize risk, contribute to remediation efforts, and develop tools and techniques that improve how we test and secure our systems. Your work will directly support the safety and reliability of products used by millions of customers.

This role is based in our Bellevue, WA, New York, NY, Denver, CO or Menlo Park, CA office(s), with in-person attendance expected at least 3 days per week.

At the company, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our office experience is intentional, energizing, and designed to fully support high-performing teams.

What you’ll do

• Evangelize the Offensive Security Team’s Findings and Projects with stakeholders throughout the company and collaborate with other teams to create solutions that balance security with other priorities.
• Mentor and provide guidance to the members of the Offensive Security team.
• Plan and execute red team exercises, including long-term assessments that simulate real-world attack scenarios
• Perform threat modeling and penetration testing across applications, infrastructure, and corporate environments
• Develop scripts and tools to support and automate security testing activities
• Partner with detection and response teams to run adversarial simulations and improve incident readiness
• Communicate findings clearly and work with engineering teams to remediate identified risks
• Lead Security Incidents when Pentest or Red Team findings require them.
• Plan and participate in Adversarial Simulation exercises with various security teams.

What you bring

• 6+ years of experience conducting red team operations or advanced penetration testing
• Experience mentoring or supporting the development of other security engineers
• Passion and demonstrated experience for challenging security assumptions.
• Excellent written and verbal communication skills and ability to communicate your findings at many different levels of abstraction from Engineers to Executives.
• Passion for fixing security issues and not just identifying security issues.
• Familiarity with common network protocols and standards such as DNS and TCP/IP.
• Experience with MacOS and Linux.
• Experience with leveraging components of a modern software development stack to attack companies, including CI, container orchestration systems (Kubernetes/Docker), cloud providers (AWS, GCP), etc and be able to give hardening suggestions.
• Experience/knowledge of defensive tools/techniques (IDS/IPS, Packet Capture, Network Analysis, AV, EDR, etc.) and how to evade them.
• Deep understanding of Mitre’s ATT&CK Framework.
• Strong understanding of the security fundamentals of access and identity.
• Comfortable reading / writing python, go, and javascript.
• Ability to research and execute a testing plan to access a new technology or process.
• Demonstrated experience working with a distributed team.
• Proficiency to communicate over a text-based medium (Slack, JIRA Issues, GitHub issues, & Email) and can succinctly document technical details.

Bonus Points

• Experience in the Financial Technology domain.
• Experience being a technical lead at other organizations.

What we offer

• Market competitive and pay equity-focused compensation structure
• 100% paid health insurance for employees with 90% coverage for dependents
• Annual lifestyle wallet for personal wellness, learning and development, and more!
• Lifetime maximum benefit for family forming and fertility benefits
• Dedicated mental health support for employees and eligible dependents
• Generous time away including company holidays, paid time off, sick time, parental leave, and more!
• Lively office environment with catered meals, fully stocked kitchens, and geo-specific commuter benefits

In addition to the base pay range listed below, this role is also eligible for bonus opportunities + equity + benefits.

Base pay for the successful applicant will depend on a variety of job-related factors, which may include education, training, experience, location, business needs, or market demands. The expected base pay range for this role is based on the location where the work will be performed and is aligned to one of 3 compensation zones. For other locations not listed, compensation can be discussed with your recruiter during the interview process.

Base Pay Range:

Zone 1 (Menlo Park, CA; New York, NY; Bellevue, WA; Washington, DC)

$187,000—$220,000 USD

Zone 2 (Denver, CO; Westlake, TX; Chicago, IL)

$165,000—$194,000 USD

Zone 3 (Lake Mary, FL; Clearwater, FL; Gainesville, FL)

$146,000—$172,000 USD

the company provides equal opportunity for all applicants, offers reasonable accommodations upon request, and complies with applicable equal employment and privacy laws. Inclusion is built into how we hire and work—welcoming different backgrounds, perspectives, and experiences so everyone can do their best. Please review thePrivacy Policy for your country of application.