Jobs in the United States

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Added 4 mins ago
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Entry Level Electrical Engineer
Actalent
Dahlgren, VA
- $80,000 to $100,000 USD / year
The position involves working five days per week on average at NSWC Dahlgren
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Digital Signal Processing Engineer
Actalent
Warrenton, VA
- $65 to $85 USD / hour
Job Title: Digital Signal Processing (DSP) EngineerJob DescriptionWe are seeking a Digital Signal Processing (DSP) Engineer to support the development of advanced wireless communications…
Added 4 mins ago
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Software Engineer
Actalent
Eagan, MN
- $50 to $72 USD / hour
Scripting skills in Python or Bash for testing purposes.
Added 6 mins ago
Principal Software Development Engineer
Advanced Micro Devices, Inc
San Jose, CA
Proficiency in Python and at least one systems language (C++/CUDA/HIP), including debugging and low-level optimization.
Added 6 mins ago
Software Engineer - Networking (P4, packet processing, data plane)
Advanced Micro Devices, Inc
Santa Clara, CA
Strong software design and programming skills (C/C++, Python preferred).
Added 7 mins ago
Principal Software Engineer
Valar Atomics
Torrance, CA
The Principal Software Engineer will own the technical architecture of the operating system for Valar - the telemetry systems that capture every second of reactor and fuel test data, the…
Added 8 mins ago
Senior Software Engineer
Anaconda, Inc.
Remote, United States
…team is based in India, and we need our first US based senior engineer to bridge time zones, lead customer issue response during US business hours, and turn cutting edge research…
Added 8 mins ago
SO
Space Force - Senior Enterprise Services System Engineer (2 slots)
System One
Scottsdale, AZ
- $70 to $80 USD / hour
Job Title: Space Force - Systems Network Engineer
Added 9 mins ago
Forward Deployed Engineer - Model Engineering - Manager - Consulting - OPEN Location
EY
Louisville, KY · Chantilly, VA · Washington, DC · San Francisco, CA · Memphis, TN · Wichita, KS · Indianapolis, IN · San Diego, CA · Huntsville, AL · Charlotte, NC · Nashville, TN · Iselin, NJ · Tulsa, OK · Raleigh, NC · Sacramento, CA · Southfield, MI · Alpharetta, GA · Cincinnati, OH · Providence, RI · Irvine, CA · Portland, OR · Tampa, FL · Pittsburgh, PA · New Brunswick, NJ · Oklahoma City, OK · Baton Rouge, LA · Rochester, NY · Denver, CO · Austin, TX · Detroit, MI · Los Angeles, CA · Secaucus, NJ · Hartford, CT · Philadelphia, PA · Houston, TX · San Mateo, CA · Greenville, SC · Atlanta, GA · Fort Worth, TX · Jacksonville, FL · Boca Raton, FL · Buffalo, NY · Chattanooga, TN · Charleston, WV · Milwaukee, WI · Tallahassee, FL · Minneapolis, MN · Tucson, AZ · Boston, MA · New Orleans, LA · Rogers, AR · Jericho, NY · Birmingham, AL · Seattle, WA · Cleveland, OH · Toledo, OH · Albany, NY · Westlake Village, CA · San Antonio, TX · Baltimore, MD · Arlington, VA · Palo Alto, CA · Grand Rapids, MI · Hoboken, NJ · San Jose, CA · McLean, VA · Orlando, FL · Dallas, TX · Stamford, CT · St. Louis, MO · Akron, OH · Kansas City, MO · Salt Lake City, UT · Phoenix, AZ · Grandview Heights, OH · Las Vegas, NV · Des Moines, IA · Richmond, VA · Chicago, IL · Miami, FL · New York, NY
As a Forward Deployed Engineer Manager, you will serve as a forward-deployed technical leader who shapes and delivers innovative solutions that drive business success. You will work with a…
Added 9 mins ago
Forward Deployed Engineer - Model Engineering - Senior - Consulting - OPEN Location
EY
San Diego, CA · Rogers, AR · Houston, TX · Cincinnati, OH · Salt Lake City, UT · Des Moines, IA · Tampa, FL · Greenville, SC · Orlando, FL · Atlanta, GA · Phoenix, AZ · Secaucus, NJ · Richmond, VA · Charlotte, NC · Louisville, KY · Memphis, TN · Alpharetta, GA · Chattanooga, TN · New Brunswick, NJ · New Orleans, LA · Seattle, WA · Indianapolis, IN · San Francisco, CA · Portland, OR · Raleigh, NC · Cleveland, OH · Tallahassee, FL · McLean, VA · Boston, MA · Fort Worth, TX · Wichita, KS · Sacramento, CA · Dallas, TX · Chantilly, VA · Buffalo, NY · Washington, DC · Los Angeles, CA · Hartford, CT · Irvine, CA · Huntsville, AL · Iselin, NJ · Nashville, TN · Denver, CO · Austin, TX · Rochester, NY · Akron, OH · Southfield, MI · Detroit, MI · Chicago, IL · Baton Rouge, LA · Grand Rapids, MI · Boca Raton, FL · Charleston, WV · Grandview Heights, OH · Oklahoma City, OK · Providence, RI · San Antonio, TX · Philadelphia, PA · Westlake Village, CA · Stamford, CT · Milwaukee, WI · Las Vegas, NV · Arlington, VA · Pittsburgh, PA · Jacksonville, FL · Baltimore, MD · San Mateo, CA · Minneapolis, MN · Jericho, NY · Albany, NY · St. Louis, MO · Toledo, OH · Miami, FL · Kansas City, MO · Birmingham, AL · Tulsa, OK · Palo Alto, CA · Tucson, AZ · Hoboken, NJ · San Jose, CA · New York, NY
To qualify for the role, you must have:
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Senior Backend Engineer, Autonomous Defense
Horizon3
Remote, United States
- $170,000 to $235,000 USD / year
As a Senior Backend Engineer on the Autonomous Defense team, you'll build the platform that NodeZero's defensive agents run on. Our AI researchers define what these agents should reason…
Added 10 mins ago
Senior Front-End and Agentic-UI Engineer
Evolent
Jackson, MS
The Senior Software Engineer leads the design, development, and deployment of complex features in the web user experience for the Evolent Platform. This role builds high-performance React…
Added 10 mins ago
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Automated Test Engineer
Eliassen Group
Jackson, MS
- $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 16 mins ago
Software Engineer - Systems and Infrastructure
LinkedIn
Mountain View, CA
Experience programming in Object-oriented languages such as Java, C++, Python, Go, C#, Rust and/or Functional languages such as Scala
Added 17 mins ago
Software Engineer, AI Products - MCP Manager
Usercentrics
Remote, United States
Hybrid: New York, NY (2-3 days per week in office)
Added 17 mins ago
Data Engineer-Onshore
V4C.ai
Remote, United States
The Senior Data Engineer plays a key role in advancing the company's AI strategy by designing, developing, and optimizing scalable data platforms. This role focuses on data engineering as…
Added 17 mins ago
AI Platform Support Engineer
UtiliSave LLC
Remote, United States
Work Hours 9–6 PM EST, must be based in US in a state with no more than 1 hour time difference from EST
Added 18 mins ago
Lead AWS Data Engineer
Capgemini
Atlanta, GA, GA
Added 18 mins ago
Forward Deployed Engineer
Capgemini
Atlanta, GA, GA
Advanced in at least one modern programming language (e.g., Python, TypeScript)
Added 20 mins ago
Test Engineer II
Applied Materials, Inc
Austin, TX
Programming knowledge of common languages such as C, C++, and Python
Added 20 mins ago
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SAP NS2 Senior DevOps Engineer
SAP IT Business Systeme
Austin, TX
- $131,000 to $271,600 USD / year
All internals must have manager’s approval to transfer
Added 21 mins ago
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Sr. Flight Controls Engineer
Actalent
Bingen, WA
- $147,846 to $236,317 USD / year
This engineer analyzes real flight data, compares it to flight models, and works out why the aircraft behaves the way it does. Youll tune and evaluate flight control and navigation behavior…
Added 21 mins ago
Tech Lead Manager, Display and Video 360, Inventory and Deals
Google
Kirkland, WA
5 years of experience with full stack development, across back-end such as Java, Python, Golang, or C++ codebases, and front-end experience including JavaScript or TypeScript, HTML, CSS or…
Added 21 mins ago
A
Controls Engineer III (Robotics Automation)
Actalent
Spokane, WA
- $70 to $85 USD / hour
We are seeking a Controls Engineer with experience designing, programming, and commissioning automated equipment. This role focuses on developing controls software for complex robotic…
Added 21 mins ago
Sr. Robotics Engineer - Perception and AI
Fresh Consulting
Bellevue, WA
We are looking for a Senior Robotics Engineer with a focus on perception and applied AI. While the methodology for building these systems has evolved rapidly, we have adapted alongside it.…

Horizon3

Senior Backend Engineer, Autonomous Defense

Remote, United States

$170,000 to $235,000 USD / year

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Job details

Pay: $170,000 to $235,000 USD / year
Posting language: English
Posted: Nov 12, 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.

What You'll Do

As a Senior Backend Engineer on the Autonomous Defense team, you'll build the platform that NodeZero's defensive agents run on. Our AI researchers define what these agents should reason about, you build the systems that make that work in production, across thousands of customer tenants, without breaking anything.

That means real distributed systems problems, not glue code. They execute inside customer environments under tight isolation, credential, and egress constraints. And when an agent proposes a change in production, the platform has to be able to simulate it, stage it, gate it on approval, roll it back, and prove after the fact exactly what happened and on whose authority.

This is a platform role. You'll own the runtime, the tool layer, the orchestration, the connector framework, and the observability that makes agent behavior debuggable. You'll work closely with our AI researchers, but you are not being hired to tune prompts - you are being hired to build the substrate that makes their work shippable and safe.

Responsibilities

Build and own the agent execution runtime: durable, resumable, long-running workflows with checkpointing, idempotent steps, cancellation, and timeouts at both the step and run level.
Design and implement the tool layer that agents act through - a registry with versioning, schema validation, per-tenant enablement, and authorization enforced server-side rather than by the model.
Build the connector framework for third-party security control planes (EDR, firewall, identity, SIEM, cloud IAM).
Implement the safe-change pipeline: dry-run and simulation, blast-radius classification, approval gates for high-impact actions, staged rollout, rollback, and an immutable per-tenant audit trail.
Extend NodeZero's tenant isolation model to agents that take write actions, covering execution boundaries, egress control, quotas, and cross-tenant leakage in caches, indexes, and logs.
Develop core product features in ETL and GraphQL to support data processing and retrieval for agent context, run history, and remediation state.
Build the ETL pipelines that turn pentest and remediation outcomes into the datasets our researchers train and evaluate against.
Instrument everything. Distributed tracing across an agent run, cost and token accounting per tenant, and the tooling to answer "why did the agent do that" without guessing.
Partner with AI researchers, attack engineers, and product to take capabilities from prototype to production, and feed platform constraints back into research direction early rather than late.

Required Education / Experience

Bachelor's Degree in Computer Science, Computer Engineering or related field.
7+ yrs professional software engineering experience using modern object-oriented or functional languages (Python, Go, Scala, C++, TypeScript, etc).
Experience building applications on cloud computing platforms such as AWS, Azure, GCP, using container technologies such as Docker and Kubernetes.
Expert proficiency in SQL.
Demonstrated experience designing and operating distributed systems in production: asynchronous workflows, queues, retries, idempotency, and partial failure.
A track record of shipping and operating production services, including on-call ownership.

What Sets You Apart

Experience building agentic or LLM-backed systems in production
Experience with a durable execution (such as Temporal) or workflow engine or having built equivalent checkpointing yourself.
Experience building multi-tenant platforms with hard isolation requirements, workload identity, and short-lived credential brokering.
Experience integrating a long tail of third-party APIs behind a normalized abstraction.
Familiarity with security control planes and their APIs - EDR (CrowdStrike, SentinelOne, Microsoft Defender), firewalls, SIEM, cloud IAM.
Experience with database architectures including relational (PostgreSQL) and graph (Neo4j), and experience building GraphQL backends.
Experience with observability tooling (Datadog, Prometheus, Grafana) and distributed tracing.
Awareness of prompt injection and untrusted-input handling in systems where an agent consumes data from the environment it operates in.

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: $170,000 - $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.

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