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Added 3 mins ago
Staff Software Engineer, Applications
Brain Corp
San Diego, CA
The Staff Software Engineer plays a key role for the Software Engineering Applications team, leading the development for our in-house robot software applications. With a strong technical…
Added 5 mins ago
U
Sr Software Engineer - Streaming Data Platform
Uber
Sunnyvale, CA · San Francisco, CA · Seattle, WA
- $202,000 to $224,000 USD / year
…foundational systems that operate at global scale. As a Sr Software Engineer on the Streaming Data Platform team, you will shape the architecture and evolution of the critical…
Added 12 mins ago
UG
Senior Software Engineer
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
As a Senior Software Engineer on the OCPN Cloud Platform Team, you will drive the architecture, technical design, development, delivery, and operationalization of cloud-native, resilient,…
Added 24 mins ago
Data Engineer 5
Capital One
McLean, VA · Richmond, VA · NY · Wilmington, DE
Lead and execute large-scale, transformative data initiatives from end to end, independently driving critical architectural decisions and evaluating platform choices, such as Snowflake…
Added 24 mins ago
Senior Director, AI Engineering -Agentic AI Platform(Remote Eligible)
Capital One
San Jose, CA · San Francisco, CA · McLean, VA · Cambridge, MA · NY
Oversee the design, development, testing, deployment, and support AI software components including foundation model training, large language model inference, similarity search, guardrails,…
Added 25 mins ago
Staff AI Engineer
Nova Biomedical
Waltham, MA
The Staff AI Engineer will serve as a senior hands-on technical leader within Nova's Data & AI function, designing, building, and operationalizing AI-enabled applications, agents, reusable…
Added 25 mins ago
Staff Data Engineer
DAT Solutions, LLC
Seattle, WA
Platform Evolution: Lead the design and evolution of our modern data platform architecture, ensuring it remains scalable, available, and performant.
Added 25 mins ago
CC
Staff Site Reliability Engineer
Carrier Corporation
Remote, United States
- $96,000 to $192,000 USD / year
Carrier's Building Automation Systems (BAS) Cloud organization is seeking a highly skilled Senior Site Reliability Engineer (SRE) to help build, scale, and continuously improve our…
Added 25 mins ago
Software Engineer Principal
The Home Depot
Remote, United States
Participate in and lead learning activities around modern software design and development core practices (communities of practice).
Added 26 mins ago
Sr Principal Software Engineer
Palo Alto Networks, Inc.
CA
As a senior principal level Device Security Engineer, you will:
Added 30 mins ago
Software Test and Automation Engineer
Edwards Lifesciences LLC
CA
Design and execute software test plans, protocols, and cases, and build the corresponding automated tests, for assigned features across the IHFM product suite: digital ecosystem…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio-Supply Chain - Products & Platforms
Deloitte
Kansas City, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio-Supply Chain - Products & Platforms
Deloitte
Saint Louis, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio - Products & Platforms
Deloitte
Saint Louis, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio Revenue Cycle - Products & Platforms
Deloitte
Saint Louis, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio - Products & Platforms
Deloitte
Kansas City, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 33 mins ago
ConvergeHEALTH - Forward Deployed Engineer, Data Studio Revenue Cycle - Products & Platforms
Deloitte
Kansas City, MO
As a Forward Deployed Engineer within Converge for Healthcare, you will work directly with clients, Deloitte Consulting's broader Health Care consulting practice, and Converge for…
Added 41 mins ago
Senior Forward Deployed Engineer
Workday, Inc.
CA · GA
As a Senior Forward Deployed Engineer on the Developer Platform FDE team, you’ll bridge hands-on agent engineering with high-impact customer technical strategy. You’ll partner with…
Added 41 mins ago
Principal Forward Deployed Engineer
Workday, Inc.
CA · GA
As a Principal Forward Deployed Engineer on the Developer Platform FDE team, you’ll bridge hands-on agent engineering with high-impact customer technical strategy, taking on the most…
Added 42 mins ago
Senior DevOps Mobile Operations Engineer
ManpowerGroup
Plano, TX
Our client, Medical Device Software & Connected Systems is seeking a Senior DevOps Mobile Operations Engineer to join their team. As a Senior DevOps Mobile Operations Engineer, you will be…
Added 42 mins ago
Data Operations Engineer (Hybrid) - 31009
Huntington Ingalls Industries
San Antonio, TX
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 43 mins ago
Sr ServiceNow Application Development Engineer, Ops Tech Solutions
Amazon
Austin, TX
…administration, maintenance, and development of the ServiceNow platform for the organization. The ideal candidate is innovative and has great problem-solving skills. You must be very…
Added 43 mins ago
Distinguished Engineer, AI Security Systems (Remote)
CrowdStrike
Austin, TX
…redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is…
Added 43 mins ago
TT
Electrical & Computer Engineer
True Talent Solutions Partners
Los Angeles, CA
- $120,000 to $220,000 USD / year
Join a small defense and space technology team as its first dedicated electrical and computer engineer. You will lead development of a satellite flight computer and help shape GPU compute…
Added 50 mins ago
Lab & Integration Engineer
Anduril Industries
Costa Mesa, CA
You will engineer and integrate on the lab fleet behind our flagship autonomous air vehicle: software-in-the-loop and hardware-in-the-loop rigs for vehicle management, flight controls and…

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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