Nucleus Security

• Own the end-to-end lifecycle of AI-driven features—from prototyping and experimentation to production deployment and customer delivery. • Design, build, and evolve our semantic data layer to enable scalable, high-quality AI and analytics use cases. • Collaborate with engineering, product, and data teams to translate ambiguous requirements into robust technical solutions. • Diagnose, triage, and resolve production issues quickly, ensuring reliability and continuous improvement of deployed systems.

Channel Sales Manager – Mid West (CSM/CAM) Nucleus is looking for a highly motivated, experienced Channel Manager in the Mid-West US, to join our team in the Vulnerability Management/CTEM market. As a Channel Sales Manager at Nucleus, you will play a crucial role in enabling, supporting, and influencing partner personnel to recommend and sell our innovative solutions to their clients. You will be responsible for understanding customer needs, aligning them with our unique value proposition, and driving successful solutioning. What You Will Do - Collaborate closely with Account Executives and Sales Engineers in your territory to align technical requirements and solutions with partner clients' business drivers, effectively showcasing Nucleus' unique value. - Enable partner technical and sales personnel to understand the problems Nucleus solves in client environments, both through in-person and remote interactions - Develop excellent working relationships with partners, GSI’s, MSSPs, resellers, etc. as a trusted resource. - Develop strong relationships with partners, Global System Integrators (GSIs), Managed Security Service Providers (MSSPs), resellers, and other stakeholders, serving as a trusted resource for information and support. - Stay updated on competitor offerings and Go-to-Market strategies within assigned partner organizations in your geographic region. - Gather partner feedback and insights to deliver valuable input to the product team for continuous improvement and roadmap development. - This position requires significant travel - approximately 50% of the time. Please note that if you are unable to travel, your application for this position will not be considered. What You Need to Excel in this Role - Experience in enterprise sales and a comprehensive understanding of the enterprise sales process - Familiarity with the deal registration process and the ability to drive top-of-the-funnel activity. - Capability to work both independently as well as with a team across different time zones. - Exceptional communication skills, both written and verbal, enabling effective interaction with clients and colleagues. - Maintain a sense of urgency in all tasks and responsibilities. - A minimum of 5 years of experience in channel sales or account management required. - Preferred Qualifications: - Strong record of influencing, enabling and gaining trust of security focused partners (GPS, Optiv, Defy, etc.) - Experience in the Cybersecurity space; including but not limited to vulnerability management and/or application security. - Sales and enablement experience with Global Service Integrators (GSIs). Why You Should Be Excited - Work on a truly unique solution that’s defining a market and making an actual impact. - We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we also laugh and have fun in the process. - Flexible PTO – take what you need! - Generous 401k company contribution (not a match, a contribution) - 100% company-paid healthcare options - Fully remote - Salary Information - OTE $250,000 to $300,000 Additional Information At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.

Software Engineer – Full Stack Are you passionate about building real-world systems that power high-impact cybersecurity workflows? Nucleus Security is seeking a Software Engineer to join our growing engineering team and help expand and improve our platform. This role is ideal for an early-career or mid-level engineer with a strong interest in backend and/or full-stack development, APIs, and scalable systems. You’ll work closely with experienced engineers to build clean, maintainable, and reliable software. Nucleus Security is transforming how security and development teams manage vulnerabilities at scale. Our platform unifies vulnerability data across scanners and environments, enabling organizations to prioritize and remediate vulnerabilities efficiently. Through our integrations, we empower customers to ingest data from their existing tools with minimal setup and maximum reliability. As our ecosystem continues to expand, the integrations team plays a critical role in scaling our platform’s reach and value.Role Overview As a Software Engineer, you’ll contribute to building and improving core platform features. You’ll work with APIs, data processing workflows, and application services while collaborating with engineering, product, and QA teams. What You’ll Do - Contribute to building and maintaining features in support of the product roadmap - Debug and troubleshoot customer reported issues and fix bugs across the stack - Continuously learn and improve your technical skill set - Write clean, maintainable, and testable code - Work with external APIs to ingest, process, and store data to and from 3rd party systems - Collaborate cross-functionally to deliver high-quality features - Participate in code reviews and team discussions What We’re Looking For Required Experience - 0–5 years of professional software engineering experience - Experience with a backend programming language - Experience with a frontend framework (react, vue, …) - Familiarity with web development concepts (APIs, HTTP, frontend/backend interaction) - Basic understanding of relational databases (e.g., MySQL, PostgreSQL) - Strong debugging and problem-solving skills - Ability to work independently and as part of a distributed team Preferred Experience - Experience working with PHP or Python, especially in frameworks like Laminas, Laravel, or Django. - Experience building a frontend experience using React - Experience working with REST APIs - Familiarity with cloud environments (e.g., AWS) - Experience with test writing (unit/integration tests) - Exposure to Linux-based environments - Familiarity with Agile/Scrum methodologies - Exposure to cybersecurity or vulnerability management tools - Experience using AI tools and agents to accelerate your development Why You Should Be Excited - We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we have fun in the process. - Outstanding benefits - 401k company contribution (not a match, a contribution) - 100% company-paid healthcare options - Company HSA contribution on eligible insurance plans - 100% company-paid vision & dental - 100% company paid short term disability insurance - 100% company paid life insurance - Fully remote - Flexible PTO Salary Range $80,000 - $110,000 annually Additional Information At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.

Senior Software Engineer – Semantic Layer and AI Interfaces Are you looking for more in life than just building another web app? Does upending cyber security resonate with you? We're a rapidly expanding cybersecurity company revolutionizing vulnerability management for organizations of all sizes. For our customers, vulnerability management has always been a game of catch-up, with limited asset coverage and manual processes. Nucleus' primary mission is to create a fast, scalable platform that not only addresses these challenges but also makes vulnerability management simple, fun, and effortless. Currently, we're looking for a passionate Senior Software Engineer to join our growing team of engineers. What You Will Do: - Own the end-to-end lifecycle of AI-driven features—from prototyping and experimentation to production deployment and customer delivery - Design, build, and evolve our semantic data layer to enable scalable, high-quality AI and analytics use cases - Collaborate with engineering, product, and data teams to translate ambiguous requirements into robust technical solutions - Diagnose, triage, and resolve production issues quickly, ensuring reliability and continuous improvement of deployed systems The following skills and experience are key to succeeding in this role: - Strong background in data analytics, data science, and/or data warehousing. - Deep expertise in SQL, including performance optimization and complex query design. - Proficiency in Python or similar language for data processing and AI integration. - Experience working in a test-driven environment and writing unit and integration tests - Proven ability in technical troubleshooting. - Capable of working independently as well as collaboratively with teams across different time zones. Preferred Qualifications: - Experience working with vulnerability scanning technologies on any part of the tech stack (e.g., SCA, SAST, DAST, IAST, VM Scanning, Container, etc.) - Experience with column store databases and columnar data, especially using SingleStore/MEMSQL - Experience integrating AI/LLM-driven features with data platform. - Familiarity with Agile/Scrum methodologies in a professional setting. - Experience maintaining applications on Linux platforms in cloud environments. - Experience with modern versions of PHP, and the Zend and Laminas Frameworks - Improve key components of the application to enable data scalability. Why You Should Be Excited  - Nucleus is a truly unique solution that’s defining a market AND making an actual impact.  - We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we have fun in the process.  - Outstanding benefits - 401k company contribution (not a match, a contribution) - 100% company-paid healthcare options - Company HSA contribution on eligible insurance plans - 100% company-paid vision & dental - 100% company paid short term disability insurance - 100% company paid life insurance - Fully remote - Flexible PTO Salary Range $135,000 - $165,000 annually Additional Information At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.

Channel Sales Manager – Mid West (CSM/CAM) Nucleus is looking for a highly motivated, experienced Channel Manager in the Mid-West US, to join our team in the Vulnerability Management/CTEM market. As a Channel Sales Manager at Nucleus, you will play a crucial role in enabling, supporting, and influencing partner personnel to recommend and sell our innovative solutions to their clients. You will be responsible for understanding customer needs, aligning them with our unique value proposition, and driving successful solutioning. What You Will Do - Collaborate closely with Account Executives and Sales Engineers in your territory to align technical requirements and solutions with partner clients' business drivers, effectively showcasing Nucleus' unique value. - Enable partner technical and sales personnel to understand the problems Nucleus solves in client environments, both through in-person and remote interactions - Develop excellent working relationships with partners, GSI’s, MSSPs, resellers, etc. as a trusted resource. - Develop strong relationships with partners, Global System Integrators (GSIs), Managed Security Service Providers (MSSPs), resellers, and other stakeholders, serving as a trusted resource for information and support. - Stay updated on competitor offerings and Go-to-Market strategies within assigned partner organizations in your geographic region. - Gather partner feedback and insights to deliver valuable input to the product team for continuous improvement and roadmap development. - This position requires significant travel - approximately 50% of the time. Please note that if you are unable to travel, your application for this position will not be considered. What You Need to Excel in this Role - Experience in enterprise sales and a comprehensive understanding of the enterprise sales process - Familiarity with the deal registration process and the ability to drive top-of-the-funnel activity. - Capability to work both independently as well as with a team across different time zones. - Exceptional communication skills, both written and verbal, enabling effective interaction with clients and colleagues. - Maintain a sense of urgency in all tasks and responsibilities. - A minimum of 5 years of experience in channel sales or account management required. - Preferred Qualifications: - Strong record of influencing, enabling and gaining trust of security focused partners (GPS, Optiv, Defy, etc.) - Experience in the Cybersecurity space; including but not limited to vulnerability management and/or application security. - Sales and enablement experience with Global Service Integrators (GSIs). Why You Should Be Excited - Work on a truly unique solution that’s defining a market and making an actual impact. - We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we also laugh and have fun in the process. - Flexible PTO – take what you need! - Generous 401k company contribution (not a match, a contribution) - 100% company-paid healthcare options - Fully remote - Salary Information - OTE $250,000 to $300,000 Additional Information At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.

Role Description This internship is designed as a learning-focused, project-based experience for undergraduate students. The QA Automation Intern will work on a defined project centered on automated testing of the Nucleus Security Application. Under close supervision and mentorship, the intern will learn foundational software testing concepts while contributing to a real-world application used by enterprise customers. Throughout the internship, you will: - Work on one or more well-scoped QA automation initiatives under the guidance of a mentor. - Contribute to the automated test suite, improve test reliability and coverage, and gain hands-on experience. - Present to the engineering team what you automated, the challenges you addressed, the improvements made to the test suite, and what you learned about quality assurance and automation in a SaaS environment. - Receive regular mentorship, structured guidance, and feedback throughout the internship to support learning and skill development. Qualifications - Currently enrolled in a college or university program with plans to graduate on or before June 2027. - Majoring in Computer Science, Information Systems, Engineering, or a related field. - Completion of introductory coursework in programming, information systems, or software engineering. - Previous internship, co-op, or equivalent experience in QA, Software Engineering or related field. - Ability to communicate clearly, strong attention to detail and willingness to learn. - Due to business and regulatory requirements, we are only able to hire U.S. citizens. Requirements - Experience in usability, data accuracy, or software quality. - Understanding of automated testing principles. - Familiarity with Java and Selenium or other automated testing frameworks. - Exposure to cybersecurity or SaaS platforms. - Experience on an Agile Software team. Company Description At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability.

• Perform balance sheet reconciliations and keep supporting schedules clean and audit-ready • Handle key procedural elements of the accounts payable process, including entering invoices into the accounts payable system, obtaining proper approvals, establishing proper GL coding, and triggering disbursements • Onboard new vendors, request and store Form W-9s, and process Form 1099s • Support revenue recognition (SaaS / ASC 606 exposure is a plus) • Assist with customer invoicing and billing processes • Assist with annual GAAP financial statement audits, tax return preparation, and any other outside examinations, as needed, including preparing and sending data requests • Continuously look for ways to improve systems and procedures and initiate corrective actions.

• Work on one or more projects under the guidance of a mentor. • Present to the engineering team what you worked on, the problems you tackled, and what you learned at the conclusion of the internship.

• Contribute to systems that support integrations, workflows, APIs, and internal tooling across the Nucleus platform • Build out new components for our ReactJS frontend • Work with third party REST APIs to build new ETL integrations • Write and improve automated tests to increase reliability and confidence • Debug issues and learn how to diagnose problems in distributed systems • Collaborate in code reviews and technical discussions with your team

• Plan and coordinate onboarding projects for new customers, meeting customer business requirements and driving user adoption • Manage short-term engagements to develop integrations and other scripts/tools to resolve customer’s unique challenges and enable technical use cases • Strive to improve process efficiency and team performance by continuously identifying areas to enhance our post-sales motion • Build strong relationships with customers, providing exceptional customer service and support • Design vuln management solution architecture for different asset classes and environment sizes • Understand how integrations work end to end to be able to clearly articulate complex problems and solutions to less technical stakeholders • Work closely with the sales team to conduct smooth transitions from pre- to post-sale phase • Collaborate with the product team to prioritize and productize solutions to impactful issues