Jobs in the United States

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Added 5 mins ago
Staff Software Engineer - IAM
General Motors
Montpelier, VT
We’re looking for a Security Software Engineer to join the Security Products Engineering team and drive the design and implementation of security-focused software and services across GM.…
Added 35 mins ago
Staff Endpoint Engineer
SmithRx
Plano, TX
SmithRx is seeking a visionary and highly strategic Staff Endpoint Engineer to serve as the overarching technical authority and architect for our enterprise endpoint infrastructure, vendor…
Added 49 mins ago
Information Assurance / Security Engineer - MID-Level
Arcfield
Middleton, RI
Collaborate with system administrators, engineers, ISSMs, and ISSOs to resolve cybersecurity findings.
Added 56 mins ago
BA
Data Security Engineer, Senior
Booz Allen Hamilton
Colorado Springs, CO
- $86,800 to $198,000 USD / year
Knowledge of engineering across cybersecurity, networking, operating systems, identity, cloud, and enterprise infrastructure
Added 56 mins ago
BA
Data Security Engineer
Booz Allen Hamilton
Colorado Springs, CO
- $99,000 to $225,000 USD / year
Knowledge of engineering across cybersecurity, networking, operating systems, identity, cloud, and enterprise infrastructure
Added 58 mins ago
Senior Software Engineer, Connectivity
Phaidra
Remote, United States
Phaidra was founded in 2019 by former Google, DeepMind, and Trane engineers. Our team brings deep experience in AI, cybersecurity, mission-critical cooling, data centers, and industrial…
Added 1 hour ago
S
Staff Perimeter Defense Engineer
SSB&T
Boston, MA · Princeton, NJ · Clifton, NJ · Austin, TX
- $120,000 to $202,500 USD / year
We are looking for a Staff Perimeter Defense Engineer reporting into the Defensive Engineering leadership team within Global Cyber Security (GCS). You will lead the strategy, architecture,…
Added 1 hour ago
DevOps Engineer
Stored Energy Systems
Longmont, CO
We are seeking a highly motivated DevOps Engineer to support the development, deployment, automation, and lifecycle management of software platforms related to battery sensing technology,…
Added 1 hour ago
GI
Network Engineer
Goldbelt, Inc.
Remote, United States
- $112,700 to $137,750 USD / year
The Network Engineer is responsible for the design, implementation, maintenance, and optimization of enterprise network infrastructure supporting Goldbelt, Inc. and its subsidiaries. This…
Added 1 hour ago
Senior Platform Engineer - w/active Top Secret clearance
LMI
Washington, DC, DC
LMI is seeking an experienced Senior Platform Engineer to lead the design and integration of hybrid cloud and on-premises computing platforms supporting federal customers and classified…
Added 1 hour ago
G
Network Engineer
Goldbelt
Remote, United States
- $112,700 to $137,750 USD / year
The Network Engineer is responsible for the design, implementation, maintenance, and optimization of enterprise network infrastructure supporting Goldbelt, Inc. and its subsidiaries. This…
Added 2 hours ago
Senior Engineer - Enterprise AI Risk (Remote)
United Airlines
Chicago, IL
The Responsible AI Tech Senior Engineer’s primary responsibility is to implement the proper security infrastructure and technological integrations to enable the needs of both Cybersecurity…
Added 2 hours ago
Zscaler Integration Engineer - Mid
VIATEQ Corporation
Washington, DC
VIATEQ Corporation is looking for a Zscaler Integration Engineer (Mid) to support enterprise network security operations and IT administrative and operational support services for a federal…
Added 2 hours ago
Service Desk Engineer
Zensar
Boston, MA · Rockland, MA
Zensar is looking for a Service Desk Engineer in the United States (Rockland, MA – 100% Onsite). This position is open for Full Time with excellent benefits and professional growth…
Added 2 hours ago
Senior Systems Engineer, Network Architecture & Infrastructure Protection (Onsite)
RTX
United States
As a Senior Systems Engineer within Strategic Defense Solutions (SDS), you will apply your technical expertise to the development of advanced Strategic Nuclear Deterrence capabilities,…
Added 2 hours ago
Help Desk Analyst
3Core Systems, Inc
New York, NY
The Field Services Engineer is responsible for delivering first class
Added 2 hours ago
CM
Senior Applications Security Engineer (SOAR)
Centene Management Company LLC
Remote, United States
- $87,000 to $161,300 USD / year
Position Purpose: The Senior SOAR Engineer/Developer designs, develops, and maintains security orchestration and automation solutions that improve cybersecurity operations. The role…
Added 2 hours ago
CM
Applications Security Engineer II (SOAR)
Centene Management Company LLC
Remote, United States
- $75,300 to $135,400 USD / year
Position Purpose: The SOAR Engineer/Developer designs, develops, and maintains security orchestration and automation solutions that improve cybersecurity operations. The role develops SOAR…
Added 2 hours ago
Sr Network Operations Engineer
loanDepot
Irvine, CA
…related management platforms across data centers, campus, branch, remote-user, and Microsoft Azure environments. Establishes thresholds, alerting, incident response, and crisis procedures;…
Added 2 hours ago
TI
Enterprise AI DevOps SRE
Trimble Inc.
Boulder, CO
- $115,600 to $158,900 USD / year
Collaborate with cross-functional product, data, and security teams as a trusted advisor to establish high standards for cybersecurity, compliance, and xOps.
Added 2 hours ago
Infrastructure Supervisor
Chord Energy Corporation
Houston, TX
…networks, cloud infrastructure, servers, storage, datacenter, and cybersecurity. The role designs, documents, maintains, and upgrades existing networks, and monitors systems for performance…
Added 2 hours ago
Software Engineer
TEXAS RESEARCH INSTITUTE AUSTIN INC
Austin, TX
TRI Austin is seeking a Software Engineer to support the development and improvement of software tools used to process, analyze, and manage complex scientific and engineering data.
Added 2 hours ago
Senior Software Engineer
TEXAS RESEARCH INSTITUTE AUSTIN INC
Austin, TX
TRI Austin is seeking an experienced Senior Software Engineer to lead the development, enhancement, and maintenance of software applications used to analyze, manage, and visualize complex…
Added 3 hours ago
C
Software Engineer Data & AI II (Full Time) – United States
Cisco
San Jose, CA
- Full-time
This role may be eligible for remote work in the United States depending on business needs and hiring manager approval.
Added 3 hours ago
Senior Security Engineer - Aerospace
Muon Space
San Jose, CA
Muon seeks a Senior Security Engineer to join our Security Engineering & IT team. The ideal candidate brings deep expertise across multiple security domains and can operate independently to…

Horizon3

Senior Backend Engineer, Admin Experience

Remote, United States

$199,000 to $235,000 USD / year

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Job details

Pay: $199,000 to $235,000 USD / year
Experience: 7+ years of professional software engineering experience building production software with a modern programming language.
Posting language: English
Posted: Nov 3, 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, 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.

What You’ll Do

As a Senior Backend Engineer on the Admin Experience team, you’ll build the services and APIs that let NodeZero customers administer their organizations securely. The work spans user access, parent-child account relationships, account settings, and administration capabilities such as roles, access controls, and audit logs. You’ll own substantial features from technical design through rollout and production support, applying sound data modeling and authorization practices to multi-tenant workflows. You’ll collaborate with Product, frontend engineers, and partner teams to make administration capabilities reliable, understandable, and consistent across the platform.

Responsibilities

Design, build, and operate backend services and APIs for user access, account hierarchies, settings, and administration workflows.
Own features from design and implementation through tests, safe rollout, observability, and production support.
Apply secure authorization and data-modeling practices to customer and parent-child account relationships.
Investigate production issues and improve service reliability, performance, and observability.
Write and review maintainable code, automated tests, design documentation, runbooks, and support guidance.
Partner with Product, frontend engineers, and adjacent platform teams to deliver cohesive customer workflows.
Mentor teammates through design discussions, code reviews, and collaborative problem solving.

What You’ll Bring

Ability to own complex work end to end, manage competing priorities, and communicate risks and tradeoffs early.
A customer- and security-conscious approach to designing administration and access workflows.
Strong analytical and problem-solving skills, attention to detail, and commitment to high-quality production software.
Clear technical writing and effective collaboration with Product and engineering partners
Interest in sharing knowledge and helping other engineers grow.

Required Education / Experience

Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
7+ years of professional software engineering experience building production software with a modern programming language.
Experience designing and operating backend services and APIs, and taking complex work from design through production.
Strong SQL and relational database experience, including data modeling and debugging or improving queries.
Experience building services on a cloud platform such as AWS, GCP, or Azure and working with Docker or other containerized applications.
Demonstrated focus on testing, production reliability, observability, and clear technical communication.
Experience with every listed language or framework is not required; depth in relevant areas and the ability to learn are important.

What Sets You Apart?

Experience with multi-tenant SaaS, RBAC, SSO, audit logs, delegated administration, or account hierarchy models.
Experience with Python or Go, PostgreSQL, GraphQL, Kubernetes, and CI/CD.
Familiarity with feature flags, metrics, tracing, alerting, and tools such as Datadog, Prometheus, or OpenTelemetry.
Experience in cybersecurity or building customer-facing platform capabilities used by multiple

Travel Required

We are a fully remote company, and this job may require up to 5% of travel to be successful.

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 $199,000 - $235,000 annually. 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.

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.

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, hair length 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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More about this job

Skills

Cybersecurity
Data modelling
Documentation
Problem solving
Attention to detail
Industrial software
Technical writing
Collaboration
Computer science
Computer engineering
SQL
Debugging
AWS
Google Cloud
Microsoft Azure
Docker
Communication skills
Python
Go
PostgreSQL
GraphQL
Kubernetes
CI/CD
Datadog
Prometheus

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