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Added 13 mins ago
Process Controls Engineer
Love's Travel Stops & Country Stores
Hastings, NE
Welcome to Heartwell! We are looking for a Process Controls Engineer to design,maintain, troubleshoot, and optimize process controls and automate systems to ensure safe, reliable, and…
Added 13 mins ago
ASIC Design Verification Engineer, Google TPU
Google
Sunnyvale, CA
Application Instructions: In most instances, this position requires in-person interviews as part of the hiring process.
Added 13 mins ago
Staff Software Engineer, Cloud ML Compute Services
Google
Kirkland, WA
In most instances, this position requires in-person interviews as part of the hiring process.
Added 14 mins ago
A
Automotive Field Service Engineer
Aerotek
Chandler, AZ
- $42 to $55 USD / hour
Added 14 mins ago
Staff Project Engineer / Onsite / Chandler AZ
Kelly Services
Chandler, AZ
A leading global telecommunications and satellite communications company is hiring a Staff Project Engineer for a full-time opportunity onsite in Chandler, Arizona. This organization…
Added 14 mins ago
Senior FPGA Engineer / Onsite / Chandler
Kelly Services
Chandler, AZ
A leading global telecommunications and satellite communications company is hiring a Senior FPGA Engineer for a full-time opportunity onsite in Chandler, Arizona. This organization develops…
Added 14 mins ago
Senior Hardware Engineer / Onsite / Chandler
Kelly Services
Chandler, AZ
A global leader in telecommunications and satellite communications technology is seeking a Staff Hardware Engineer for a full-time position onsite in Chandler, Arizona. This company…
Added 15 mins ago
J
Lead Site Reliability Engineer
Jobgether
Remote, United States
- $150,000 to $175,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Lead Site Reliability Engineer based in the United States.
Added 15 mins ago
IG
Automation Engineer (Terraform)
Insight Global
Tucson, AZ
- $65 to $75 USD / hour
…initiative.We are seeking a hands‑on Cloud Automation & Infrastructure Engineer to join a small, highly technical platform team supporting enterprise‑scale infrastructure for SAP and…
Added 15 mins ago
R
2027 Summer Intern - Systems Engineer - Instrument Development
Roche
Tucson, AZ
- $25 to $46 USD / hour
…organization. Additionally, we help our students meet their career development and educational goals while potentially building a future with the Roche organization. Leveraging the…
Added 15 mins ago
Watersheds & Stormwater Subdiscipline Leader Job Details | Black & Veatch Family of Companies
Black & Veatch
Phoenix, AZ
Black & Veatch Operations develops, deploys, and maintains global resources and capabilities that guide execution and process excellence across the organization. The foundation of Black &…
Added 15 mins ago
Senior Test Engineer
Kelly Services
Phoenix, AZ
A growing communications technology organization is seeking a Senior Test Engineer to join its team in the Phoenix-area on a full-time basis. This onsite role focuses on testing and…
Added 15 mins ago
Consultant, Black & Veatch Corporation, Phoenix, AZ Job Details | Black & Veatch Family of Companies
Black & Veatch
Phoenix, AZ
With flexible ways of working and meaningful development opportunities, you’ll build a career you can be proud to stand behind.
Added 36 mins ago
Quality Intelligence Engineer
Alcon Research, LLC. Company
Huntington, WV
We are seeking a Quality Intelligence Engineer to transform manufacturing, quality, customer, and post-market data into actionable insights that strengthen product quality, patient safety,…
Added 39 mins ago
Operations Analyst
Celsius
Boca Raton, FL
…operational questions into meaningful analysis, reporting, and process improvements that help the organization improve service, cost, efficiency, and…
Added 44 mins ago
Senior / Staff Software Engineer
Axella
Boston, MA
…delayed or lost - not because the science fails, but because process understanding and manufacturing execution break down somewhere along the way. It’s a systems problem more than a…
Added 45 mins ago
Engineer I: Aftermarket Development Program (ADP)
RTX
United States
…businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and…
Added 45 mins ago
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Manufacturing Engineer
Centura, Inc
Milford, CT
- $60,000 to $70,000 USD / year
Proven experience in project management, creating work instructions, and process development.
Added 45 mins ago
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Founding Full-Stack Software Engineer Who Has Applied for US Green Card / Visa
OpenGreenCard
San Francisco, CA
- $80,000 to $140,000 USD / year
Our founders are twin brothers. Peter worked as an engineer at Stripe and a consultant at McKinsey, and Harry as a product manager at Google. We’re an engineering and product-driven team:…
Added 46 mins ago
CC
Senior Product Engineer
Code Climate
New York City, NY
- $175,000 to $200,000 USD / year
We are looking for a full-stack Senior Product Engineer to join our NYC engineering team with a strong focus on front-end development, product sense, and a passion for creating exceptional…
Added 46 mins ago
Data Engineer
Deep Digital Solutions Group
United States
Job Description: Deep Digital are seeking a highly skilled and experienced Senior Data Engineer with a proven track record in successfully implementing, optimizing, and maintaining the data…
Added 47 mins ago
E
Software engineer
Element
Remote, United States
- $120,000 to $140,000 USD / year
We are seeking a passionate and talented Software Engineer to join our team in the United States. This role is perfect for individuals who are eager to apply their skills in a fast-paced…
Added 51 mins ago
Engineering Manager
Kyoto Fusioneering America
Oak Ridge, TN
…functions: design coordination and code compliance; engineering process governance and configuration management; schedule awareness and mitigation; and cost awareness. This position reports…
Added 51 mins ago
LS
Lead Remediation Project Engineer
Lean Synergy Solutions
Memphis, TN
- $100,000 to $130,000 USD / year
Our client is seeking an experienced Environmental Remediation Project Engineer to join their team in Memphis, TN. In this role, you will lead and manage design teams to implement…
Added 52 mins ago
Head of Forward Deployed Engineering
Newcode.ai
Chicago, IL
Client delivery takes place in pods comprising a senior legal engineer, a forward-deployed engineer, and an account manager focused on retention and expansion. The senior legal engineer…

Horizon3

Senior Software Engineer, Pentest Experience

Remote, United States

Base salary range: $200,000 - $235,000.

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Job details

Pay: Base salary range: $200,000 - $235,000.
Experience: 6+ years of professional software engineering experience.
Posting language: English
Posted: Nov 4, 2026

Original job description

Get to Know Us

Horizon3.ai 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

We are hiring a Senior Software Engineer to join our team and help build product experiences that enable customers to understand, prioritize, and act on risk in their environments. This role is for a strong senior engineer who can own meaningful product work end-to-end, partnering closely with Product, Design, and peer engineers to deliver outstanding customer experiences.

The right candidate will be comfortable moving between backend services and modern frontend application development. This role will be approximately 80% backend focused and 20% frontend focused. You should be able to scope and drive work independently, proactively identify risks and tradeoffs, and help raise the bar for the engineers through strong execution, code reviews, and collaborative problem solving.

What You’ll Be Responsible For

Building and shipping world-class product capabilities spanning backend services, APIs, and modern web application stacks.
Own moderate-to-large projects end-to-end, including scoping, technical design, implementation, rollout, and iteration.
Help implement user-facing experiences that are clear, maintainable, performant, and aligned with product requirements and design direction.
Partner closely with Product, Design, and adjacent engineering teams to deliver cross-functional initiatives.
Proactively identify and resolve technical risks, blockers, and mis-scoped work before they become larger delivery issues.
Communicate technical topics clearly to both technical and non-technical audiences, including tradeoffs, delivery risks, and implementation choices.
Contribute to architectural and design discussions with a strong sense for maintainability, operability, and long-term team productivity.
Write high-quality code, tests, and technical documentation, and provide strong code reviews that improve the team’s overall output.
Support and mentor less experienced engineers through thoughtful feedback, onboarding support, and day-to-day collaboration.
Help improve engineering quality, team execution, and the product experience through a strong sense of ownership and continuous improvement.

What You’ll Bring

Strong professional experience building and operating production software across the full stack of application development.
Ability to independently drive substantial work from requirements gathering through delivery, while coordinating effectively with cross-functional stakeholders.
Strong written and verbal communication skills, including the ability to explain technical decisions and tradeoffs clearly.
A track record of strong engineering execution, sound technical judgment, and pragmatic problem solving under ambiguity.
Product-minded thinking and a focus on building experiences that improve customer outcomes.
Comfort working across multiple workstreams and balancing competing priorities with clarity and ownership.

Required Education/ Experience

Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
6+ years of professional software engineering experience.
Experience building distributed backend services using at least one modern language, such as Python, Go, Rust, Java, TypeScript, or similar.
Experience building backend services on a cloud platform (AWS, GCP, or Azure), and familiarity with Docker and containerized applications.
Designing and operating APIs, services, and asynchronous or event-driven systems.
Experience working with SQL base relational databases in production.
Data modeling and persistence layers for product-grade backend systems.
Observability, reliability, and operational best practices for production services.
Frontend development using modern JavaScript/TypeScript in frameworks such as React, Angular, or similar.

Preferred Education/ Experience

You don’t need all of these, but experience in some of the following will help you be successful quickly:

Experience with PostgreSQL and performance tuning for large datasets.
Experience with graph databases such as Neo4j or interest in learning them.
Experience building or consuming GraphQL backends.
Experience with ETL pipelines and data processing tools (e.g., Airflow-like frameworks, custom ETL jobs, or similar).
Experience building products or platforms in vulnerability management, exposure management, security telemetry, or related cybersecurity domains
Experience with scoring or recommendation algorithms and data-intensive products
Experience partnering closely with product managers to define and sequence an MVP without painting the team into a corner.
A track record of shaping technical direction more broadly across an organization, with influence extending beyond a single team or domain.

Travel Required

We are a fully remote company, and this job may require up to 10% of travel to be successful. We meet as a team for project kicks offs and as a company annually. These in-person meetings are crucial to building a product, team, and culture we all can be proud of.

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: $200,000 - $235,000. 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 http://Horizon3.ai

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.
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
Work independently
Problem solving
Product comprehension
Documentation
Onboarding
Collaboration
Process improvement
Industrial software
Requirements gathering
Communication skills
Computer science
Computer engineering
Modern languages
Python
Go
Rust
Oracle Java
TypeScript
AWS
Google Cloud
Microsoft Azure
Docker
SQL
Data modelling
Front-end development
JavaScript
React
PostgreSQL
Neo4j
GraphQL
Data engineering
Process data
Apache Airflow
Painting

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