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Senior Project Manager
BLHI
Atmore, AL
Oversee development, maintenance, and execution of the project schedule.
Added 1 min ago
Senior Project Manager
BLHI
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Oversee development, maintenance, and execution of the project schedule.
Added 1 min ago
Principal Engineer – Spacecraft System Test Engineer (AI&T)
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Job Description BAE Systems Aerospace & Mission Systems (AMS) is seeking a Principal Engineer to drive the testing and execution of space flight hardware. This role is designed for a…
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Principal Engineer – Spacecraft System Test Engineer (AI&T) - $15K Sign On Bonus
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United States
- $38 USD / hour
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…Advanced motion control, servo motors and drives, software development, and systems integration are key components to existing and future projects at Yaskawa. If you are a hardworking…
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RH
Sr Application Engineer
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- $80 to $124 USD / hour
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Integration Engineer
Robert Half
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Controls Engineer IV
JTI Electrical & Instrumentation, Inc.
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Controls Engineer IV
JTI Electrical & Instrumentation, Inc.
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The Controls Engineer IV must be able to use theoretical and practical knowledge of electrical engineering to design and implement electrical control systems for machines and industrial…
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Controls Engineer IV
JTI Electrical & Instrumentation, Inc.
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Controls Engineer IV
JTI Electrical & Instrumentation, Inc.
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Security Engineer III
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Maintain the detection engineering lifecycle from intake through development, validation, deployment, tuning, and retirement.
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Senior Construction Inspector
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Enterprise Data Manager
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High Voltage Engineer
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Project Administrator
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Senior Staff Software Engineer
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We're seeking an experienced Senior Full-Stack Software Engineer to join our SewerAI team working on an innovative automated sewer inspection analysis and management platform. You'll work…
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Quality Engineer
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This highly motivated and data-driven Quality Engineer serves as the technical quality resource for manufacturing operations and quality system improvement. The position is responsible for…
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ETL Engineer / Data Scientist (TS/SCI)
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Senior Staff Algorithm Engineer - Emerging Sensing Technologies
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Senior Coastal Hydraulic Engineer - Kiewit Infrastructure Engineers
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Kiewit has an immediate opening for a Senior Coastal Hydraulics Engineer with experience in the design and construction of marine and coastal infrastructure to support Kiewit’s Marine and…
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Lead Corporate Systems Engineer
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Our client is looking for a Lead Corporate Systems Engineer for a contract to hire opportunity located in Los Angeles, CA or Tampa. FL. This is a hybrid role (3 days onsite).
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Sr Python DevOps Engineer 49045
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Client is looking for an experienced Senior DevOps Python Developer to own end-to-end development of back-end services and automation. The role covers Python back-end development with…

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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