Jobs in the United States

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Added 1 min ago
Sr. AWS Cloud Architect
Peraton
Remote, United States
Peraton is seeking a Sr. AWS Cloud Architect to design, lead, and govern enterprise cloud architecture supporting mission-critical federal programs. This role defines the target-state cloud…
Added 3 mins ago
BN
Application & Integration Developer (Contract)
Business Network Consulting, Ltd.
Denver, CO
- $125 to $150 USD / hour
Business Network Consulting (BNC) is seeking a senior, hands-on developer to design, support and extend custom applications, data integrations and automation solutions for…
Added 13 mins ago
BP
Senior Data Engineer
Brookfield Properties (USA II) LLC
NY
- $160,000 to $180,000 USD / year
…data products using Snowflake, dbt, Airflow and Astronomer, AWS, SQL, and…
Added 15 mins ago
Artificial Intelligence/Machine Learning Engineers
FIS Global
Jacksonville, FL
Strong Python skills and experience with machine learning frameworks such as scikit-learn, TensorFlow, PyTorch, Keras or Pandas.
Added 17 mins ago
Integration and Test Engineer
INFINITY SYSTEMS ENGINEERING LLC
Colorado Springs, CO
Proficiency in test automation tools and scripting languages (e.g., Python, MATLAB, LabVIEW).
Added 19 mins ago
Hiring: AI Engineer | Agentic AI, AWS Bedrock AgentCore & Langfuse | 15+ Years
TMS LLC
Los Angeles, CA
We are seeking a hands-on AI Engineer with expertise in Python, Agentic AI, AWS Bedrock AgentCore, and LLM evaluation to build, deploy, monitor, and continuously improve production-grade AI…
Added 23 mins ago
DevOps Engineer
Cisco
Boston, MA
…across experience levels. Engineers in this role can improve the developer experience through platforms used across the engineering…
Added 23 mins ago
Senior Offensive Security Engineer
Unity Technologies SF
Remote, United States
…editor and client runtime, ads and monetization systems, and developer-facing…
Added 24 mins ago
Problem Management Automation and Reliability Engineering Consultant. (On-site)
Truist Bank
Charlotte, NC · Greensboro, NC · Wilson, NC · Raleigh, NC
Added 28 mins ago
Director of Applied Innovation - York, NE
Central Valley Ag Cooperative
York, NE
Hands-on proficiency with a modern application stack - for example TypeScript/JavaScript with React or Next.js, C#, or Python - and with relational databases and SQL.
Added 28 mins ago
Applied Innovation Engineer - York, NE
Central Valley Ag Cooperative
York, NE
Proficiency with at least one modern programming language and application framework - for example TypeScript/JavaScript with React or Next.js, C#, or Python.
Added 28 mins ago
Lead, Information Security
S&P Global Inc.
NY
…reviews across multiple programming languages, including Java, Python, C# and either JavaScript or Node.js. Conducting formal threat modeling using frameworks, including STRIDE, PASTA, or…
Added 28 mins ago
Lead, Software Engineering
Markit North America
Raleigh, NC
…to address business issues, utilizing Snowflake, SQL Server, Python, AWS, and Terraform. Preparing architectural blueprints and building data pipelines to process and transfer data across…
Added 28 mins ago
Lead, Software Engineering
Markit North America
Raleigh, NC
…to address business issues, utilizing Snowflake, SQL Server, Python, AWS, and Terraform. Preparing architectural blueprints and building data pipelines to process and transfer data across…
Added 31 mins ago
P
Engineering Manager, Conversational AI
Pebl
Palo Alto, CA
- $154,000 to $195,000 CAD / year
- Technical Stack: Demonstrated ability to operate backend (micro)services in TypeScript or Python, Postgres, and AWS, deployed on Kubernetes, including clean contracts and APIs that…
Added 34 mins ago
Senior Full Stack Engineer
Fidelity Technology Group, LLC
Westlake, TX
· A minimum of 2 years of experience in cloud development (AWS); Experience with designing, building and operating highly resilient platforms in AWS Cloud Environments
Added 34 mins ago
FT
Senior Full Stack Engineer (Angular, AWS, Python, REST, Node.js)
Fidelity Technology Group, LLC
Jersey City, NJ
- $97,000 to $185,000 USD / year
3 plus years on experience on AWS serverless (Lambda) / API gateway / ACM / Secret manager.
Added 34 mins ago
Sr. Application Security Engineer
American Express Global Business Travel
Augusta, ME
…application development into application security, bringing a developer's mindset to security and operations, and will mentor others while helping shape how the organization builds and…
Added 35 mins ago
Sr Lead Software Engineer(AI, Data Cloud)
JPMC page
Plano, TX · Columbus, OH · Jersey City, NJ
Serves as a hands-on technical leader, contributing production code (primarily Python) and owning end-to-end delivery from design through production operations.
Added 41 mins ago
Sr. Application Security Engineer
American Express Global Business Travel
Helena, MT
…application development into application security, bringing a developer's mindset to security and operations, and will mentor others while helping shape how the organization builds and…
Added 47 mins ago
SO
Principal Developer - OIT Internal Recruitment (Remote From Anywhere In CO)
State of Colorado
CO
- $122,000 to $137,000 USD / year
We’re looking for a strategic and collaborative Principal Developer to be a top team member in the operations of an applications delivery work unit to drive the modernization and…
Added 47 mins ago
Mid Level DevSecOps Engineer
BAE Systems
Sterling, VA
Deploy and maintain infrastructure in a cloud-based environment (AWS)
Added 47 mins ago
Data Scientist_ SPLUNK
BAE Systems
Sterling, VA
Scripting tools to include Python, BASH, ShellScript, or Ansible
Added 47 mins ago
Data Engineer_ SPLUNK
BAE Systems
Sterling, VA
Public, private and hybrid Cloud experience (AWS, Microsoft Azure, etc.)
Added 51 mins ago
TT
Product Manager, Supply Chain
True Talent Solutions Partners
Los Angeles, CA
- $175,000 to $200,000 USD / year
- Familiarity with Python, React, SQL, PostgreSQL, AWS, APIs, ERP systems, MES, PLM, or AI-assisted prototyping tools.

Horizon3

Staff Software Engineer, Backend MSSP

Remote, United States

$230,000 to $270,000 USD / year

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Job details

Pay: $230,000 to $270,000 USD / year
Experience: 8+ years of professional software engineering experience, including deep experience with backend systems and APIs.
Posting language: English
Posted: Oct 30, 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 Staff Backend Engineer on the MSSP & TRPM team, you’ll provide hands-on technical leadership for the NodeZero capabilities that enable partners to manage services across many customer environments. You’ll shape architecture for multi-tenant workflows, account hierarchies, delegated administration, client and sub-client management, and asset allocation or deprecation. You’ll guide designs that preserve tenant boundaries and give partners reliable ways to administer their customer relationships. Working across Product and Engineering, you’ll lead complex initiatives while remaining accountable for implementation quality and production outcomes.

Responsibilities

Set technical direction for partner and multi-tenant platform services, including account hierarchies, tenant isolation, delegated administration, and partner workflows.
Lead architecture and implementation of complex capabilities for client and sub-client management, asset allocation or deprecation, and partner administration.
Define patterns for secure data boundaries, API design, reliability, observability, and operational readiness.
Remain hands-on in complex technical work and help teams make decisions when requirements or tradeoffs are ambiguous.
Partner with Product, customer-facing teams, and adjacent engineering groups to align platform capabilities with partner needs.
Mentor engineers through design reviews, code reviews, pairing, and technical documentation.
Own complex production issues and drive improvements that strengthen service reliability and prevent recurrence.

What You’ll Bring

Ability to lead broad technical initiatives, establish direction, and build alignment across teams.
Strong judgment around tenant isolation, security, data integrity, reliability, and customer impact.
Clear communication and technical writing, including the ability to explain architecture and tradeoffs to both technical and non-technical partners.
A mentoring mindset and commitment to raising engineering practices across the organization.
Hands-on ownership of production services, including operational follow-through and continuous improvement.

Required Education / Experience

Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
8+ years of professional software engineering experience, including deep experience with backend systems and APIs.
Track record of leading architecture or technical direction for production multi-tenant, platform, or distributed systems.
Strong understanding of data modeling, service reliability, and security boundaries in customer-facing systems.
Ability to influence decisions across teams, mentor engineers, and communicate technical tradeoffs clearly.
Experience building and operating cloud-hosted services and taking ownership of production outcomes.

Required Tech Stack Experience

Deep experience building backend services in a modern language such as Python, Go, Java, or TypeScript.
Strong SQL and relational data modeling, API design, and production service-operating experience.
Experience with cloud-hosted systems and containerized applications such as Docker; familiarity with Kubernetes or a comparable orchestrator.
Experience with every example technology is not required; depth in relevant areas and the ability to guide sound technical decisions are important.

Work Authorization & Security Clearance Requirements

[If applicable, otherwise delete section]

Only US persons can interview for this role due to security clearance requirements by our customer(s) and/or vendor(s). Employee must be eligible for and successfully secure a US Federal Security Clearance as a condition of employment.

What Sets You Apart?

Deep experience with MSP/MSSP, reseller, white-label, or partner software platforms.
Experience with delegated administration, parent/sub-client account models, tenant isolation, RBAC, and audit logs.
Strong proficiency in Python or Go, SQL/PostgreSQL, AWS, GraphQL, Docker, and Kubernetes.
Background in cybersecurity or third-party risk management, licensing, entitlements, or compliance-adjacent capabilities.

[Optional] 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 $230,000 - $270,000 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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