Jobs in the United States

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Added 5 mins ago
Lead Information Security Engineer - Red Team
Lumen
Providence, RI
Red Team - Lead Information Security Engineer
Added 5 mins ago
O
Federal Oracle Health Automation Engineer - Eggplant
Oracle
Providence, RI
- $23.8 to $56.83 USD / hour
The Federal Test Automation team is seeking a Staff Automation Engineer to support the Federal VA project. This role is responsible for designing, developing, and executing automated…
Added 5 mins ago
EG
Automated Test Engineer
Eliassen Group
Providence, RI
- $40 to $50 USD / hour
Our client seeks an Automated Test Engineer to support Hivemind by monitoring and maintaining large volumes of automated tests, troubleshooting failures, and driving bug resolution across…
Added 7 mins ago
AT
Senior Network Engineer - DDoS
Akamai Technologies, Inc.
Jefferson City, MO
- $112,500 to $202,500 USD / year
As a Senior Network Engineer, you will lead efforts in designing, implementing, and automating Akamai's global network infrastructure. You will address complex issues in routing, data…
Added 7 mins ago
AI and Data Science Engineer I
Deloitte
Kansas City, MO
As an AI and Data Science Engineer I on the Advertising, Marketing & Commerce team, you will be responsible for...
Added 7 mins ago
AI and Data Science Engineer I
Deloitte
Saint Louis, MO
As an AI and Data Science Engineer I on the Advertising, Marketing & Commerce team, you will be responsible for...
Added 11 mins ago
J
Senior SecOps
Jobgether
Remote, United States
- $160,000 to $190,000 USD / year
This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior SecOps Engineer based in the United States.
Added 11 mins ago
J
Senior Pre-Sales Systems Engineer, Federal Civilian
Jobgether
Remote, United States
- $141,400 to $234,500 USD / year
…steps. Our partner is looking for a Senior Pre-Sales Systems Engineer, Federal Civilian based in the United…
Added 11 mins ago
J
Genesys Cloud - Operations Engineer
Jobgether
Remote, United States
- $89,000 to $121,400 USD / year
The Genesys Cloud - Operations Engineer is responsible for supporting, maintaining, and continuously improving enterprise contact center and telecommunications infrastructure. This role…
Added 14 mins ago
Senior Manager, Knowledge & Context Architecture
Teradata
Jefferson City, MO
Our mission is to design the knowledge an enterprise runs on, engineer the context its AI agents need, and prove that context can be trusted. This helps make Teradata's vision for an…
Added 16 mins ago
Security Engineer (St. Louis)
World Wide Technology
Saint Louis, MO
You will work on foundational technology that matters: shared platforms, developer tooling, security controls, and automation used across WWT IT. The environment values ownership,…
Added 16 mins ago
Applied AI Health System Engineer [Health Services-Provider] - Senior Manager
PwC
Kansas City, MO
What You Must Have
Added 16 mins ago
Applied AI Health System Engineer [Health Services-Provider] - Senior Manager
PwC
Saint Louis, MO
What You Must Have
Added 16 mins ago
Quality Engineer II, Travel & Lifestyle Services
American Express
Phoenix, AZ · Sunrise, FL
The Quality Engineer II supports User Acceptance Testing (UAT) and Quality Assurance (QA) by preparing test strategies, developing and executing test scripts, maintaining test data and…
Added 17 mins ago
Software Development Engineer in Test (SDET)
Blue Marble Geographics
Hallowell, ME
Added 17 mins ago
Lead Information Security Engineer - Red Team
Lumen
Augusta, ME
Red Team - Lead Information Security Engineer
Added 17 mins ago
O
Federal Oracle Health Automation Engineer - Eggplant
Oracle
Augusta, ME
- $23.8 to $56.83 USD / hour
The Federal Test Automation team is seeking a Staff Automation Engineer to support the Federal VA project. This role is responsible for designing, developing, and executing automated…
Added 17 mins ago
EG
Automated Test Engineer
Eliassen Group
Augusta, ME
- $40 to $50 USD / hour
Our client seeks an Automated Test Engineer to support Hivemind by monitoring and maintaining large volumes of automated tests, troubleshooting failures, and driving bug resolution across…
Added 22 mins ago
M
Software Engineer 2 - CoreAI
Microsoft
WA · CA · Redmond, WA · Mountain View, CA · Redmond · Mountain View
- $102,100 to $219,200 USD / year
Our team is seeking a Software Engineer 2 - CoreAI who is passionate about security, developer productivity and automation and will contribute to the ongoing growth and support of the…
Added 22 mins ago
M
Customer Experience Engineering Manager
Microsoft
GA · NC · TX · WA · Atlanta, GA · Charlotte, NC · Dallas, TX · Redmond, WA · Atlanta · Charlotte · Dallas · Redmond
- $142,800 to $304,200 USD / year
Turn engineer know-how into automation: build a habit of documenting fixes in a form that AI agents and automated runbooks can reuse.
Added 23 mins ago
M
Cloud Network Engineer II
Microsoft
United States
- $102,100 to $219,200 USD / year
As a Cloud Network Engineer II in the Azure Dedicated Team, you will be part of a team designing Network Fabrics for traditional Ethernet networks and back-end networks using technologies…
Added 23 mins ago
M
Senior Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $119,800 to $261,000 USD / year
We are looking for a talented Senior Software Engineer to join us in pushing the boundaries of technology for the Copilot experience. In this role, you will work on building highly scalable…
Added 24 mins ago
M
Data Engineer
Microsoft
United States
- $102,100 to $219,200 USD / year
Candidates who live within 50 miles of Microsoft's Redmond campus will be required to work in the office 3 days per week
Added 27 mins ago
Cloud Solutions Architect (6122-1)
Tri-Force Consulting Services, Inc.
New York, NY
The MTA is seeking a Senior Cloud Solutions Architect / Cloud Engineer/Application Architect with deep expertise in AI agentic architecture,
Added 45 mins ago
J
Sr Software Engineer - Builder Tools
Jobgether
Remote, United States
- $190,000 to $230,000 USD / year
This is an opportunity for a senior software engineer to build and improve the infrastructure and developer tools that power reliable software delivery. As part of the Builder Tools team,…

Horizon3

Senior Attack Engineer, Kubernetes

Remote, United States

Base salary range: $206,278 - $242,680.

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Job details

Pay: Base salary range: $206,278 - $242,680.
Posting language: English
Posted: Nov 6, 2026

Original job description

Get to Know Us

Horizon3 is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and 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 ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs.

We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, 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.

About The Role

We’re looking for a senior offensive security engineer to lead the development of Kubernetes attack capabilities in NodeZero. You’ll research how attackers move from a compromised workload or identity through and beyond a cluster, and turn that research into safe, repeatable capabilities. You’ll own complex work from attack research and technical design through integration and customer-facing proof, while helping set the direction for Kubernetes coverage across cloud and self-managed environments.

This is not a maintenance role. You'll serve as the technical lead helping define Horizon3 http://Horizon3.ai's Kubernetes offensive security strategy and will have a first-hand influence on how Kubernetes attacks are integrated into the platform.

What You’ll Do

Lead offensive security research into Kubernetes clusters, workloads, identities, configurations, and cloud-connected environments.
Design and build production-quality Python attack capabilities that model realistic attacker perspectives, including an assumed-breach foothold in a pod or workload.
Develop and validate attack paths involving Kubernetes RBAC, service accounts and credentials, workloads and pods, secrets, cluster and node boundaries, network reachability, and integrations with cloud identities and managed Kubernetes services.
Assess Kubernetes security weaknesses and determine whether they create meaningful, provable impact; build safe validation and negative testing into the capability.
Own technical planning for substantial Kubernetes initiatives: identify coverage gaps, prioritize research, make design trade-offs, and coordinate delivery with Product, platform, and engineering partners.
Integrate attack content into NodeZero’s execution and results flows so customers receive reliable evidence and clear explanations of the paths found.
Review code and designs, establish quality expectations, mentor teammates, and share Kubernetes offensive-security expertise across the team.
Document methodologies, assumptions, limitations, and test approaches; contribute to internal and external technical enablement where appropriate.

What You’ll Bring

Deep hands-on experience with Kubernetes security and offensive testing of containerized environments.
Expert level understanding of Kubernetes architecture and identity and authorization controls, especially RBAC, service accounts, workloads, and cluster boundaries.
Strong Python engineering skills and experience productizing security research into reliable automation.
Experience with penetration testing, red teaming, vulnerability research, container security, or offensive security tooling.
Ability to lead ambiguous, cross-functional technical work and communicate attack paths and impact clearly.
A strong safety and product mindset: you can distinguish a theoretical weakness from a reproducible, actionable finding and build capabilities that behave predictably.
A record of owning complex technical projects, making sound trade-offs, and communicating clearly with technical and non-technical partners.
Strong written communication and a habit of documenting research and design decisions.

What Sets You Apart

Experience with EKS, GKE, AKS, OKE, or other managed Kubernetes services.
Knowledge of Linux, containers, cloud workload identity, Kubernetes operators, Helm, or infrastructure as code.
Experience with network attack paths, container escape research, or cloud-to-cluster attack paths.
Contributions to open-source security tooling, public research, conference talks, or vulnerability disclosure.

Travel Required

We are a fully remote company, and this job may require up to 10% of travel to be successful.

Perks of Horizon3

Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.
Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.
Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.
Hybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.
Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

Base salary range: $206,278 - $242,680. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.
Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Application Note

In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.

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Jobs in the United States