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Senior Software Engineer - C/C++

Tenableinc

US - Headquarters - Maryland - Columbia (Maryland HQ) Hybrid permanent

Posted: November 19, 2025

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Job Description

Who is Tenable?

Tenable® is the Exposure Management company. 44,000 organizations around the globe rely on Tenable to understand and reduce cyber risk. Our global employees support 65 percent of the Fortune 500, 45 percent of the Global 2000, and large government agencies. Come be part of our journey!

What makes Tenable such a great place to work?

Ask a member of our team and they’ll answer, “Our people!” We work together to build and innovate best-in-class cybersecurity solutions for our customers; all while creating a culture of belonging, respect, and excellence where we can be our best selves. When you’re part of our #OneTenable team, you can expect to partner with some of the most talented and passionate people in the industry, and have the support and resources you need to do work that truly matters. We deliver results that exceed expectations and we win together!

Your Role:
At Tenable, the work that we do matters in delivering industry-leading cyber exposure products. Our mission is to help our customers understand and manage their security vulnerabilities and effectively manage their cyber-exposure risk. Tenable is looking for a Senior Software Engineer to join the Nessus Engines product team. Nessus is the #1 vulnerability scanner in the market and the core of the Tenable network security product line, enabling organizations to address the ever-evolving challenge of understanding and mitigating their cybersecurity risk. As a Software Engineer on the Nessus team, you will contribute towards designing, developing and maintaining our Nessus product, used by Enterprise customers to secure their networks, thousands of consultants worldwide, as well as home users, hobbyists and students.

Your Opportunity:

• Make meaningful contributions to a product that forms the backbone of security infrastructure for companies and governments across the world
• Work cross-functionally with other developers, UX designers, product owners and various Tenable teams to design, develop and maintain a world class product
• Design, architect, and code new features
• Promote clear and simple software design while actively driving the team toward better practices and solutions
• Promote high quality aimed at areas such as security, reliability, testability and maintainability
• Work with team and cross-team members to design, develop, debug and release production quality products.
• Drive innovation by contributing new ideas for our processes, tools, and technologies
• Coach and mentor mid-level and junior staff

What You’ll Need:

• B.S. degree in Computer Science or a directly related field, or equivalent work experience
• 8+ years of software development experience in C and C++ and a willingness to learn new languages and technologies
• Experience in a custom scripting language or compiler development strongly preferred
• Strong experience in developing core libraries, multi-threading, infrastructure and/or software engines, as well as network programming experience
• Experience with network security systems is a plus
• Background working in an Agile team, and an enthusiasm for working collaboratively within and across product teams
• Able to adopt to coding best practices and standards
• Able to clearly document, user stories/use cases, functional specification and design
• Able to convert a problem statement to a design and implementation
• Experience coaching and leading mid-level and junior staff in the design, implementation, and execution of highly technical development projects
• The ability to work independently and as a part of a team, and to lead/drive projects as necessary
• Knowledge of cross-platform development
• Strong understanding of design patterns and data structures

#LI-MS1

#LI-Hybrid

This is the base pay range for this position. Compensation for the role will depend on a number of factors, including the candidate's qualifications, skills, competencies, location and experience, and may fall outside of the range shown. Employees are also eligible for variable compensation in addition to base pay (commission for sales roles, bonus for non-sales roles), depending on company and individual performance. Tenable also offers a variety of comprehensive and competitive benefits which include: medical, dental, vision, disability and life insurance; 401(k) retirement savings with company match; an employee stock purchase plan; an employee referral program; flexible spending accounts; an Employee Assistance Program (EAP); education assistance; parental leave; paid time off (PTO); company-paid holidays; health and wellness events; and community programs.

US Pay Ranges
$136,500—$181,833.33 USD

We’re committed to promoting Equal Employment Opportunity (EEO) at Tenable - through all equal employment opportunity laws and regulations at the international, federal, state and local levels. If you need a reasonable accommodation due to a disability during the application or recruiting process, please contact [email protected] for further assistance.

Tenable Data Consent Statement

Tenable is committed to protecting the privacy and security of your personal data. This Notice describes how we collect and use your personal data during and after your working relationship with us, in accordance with the General Data Protection Regulation (“GDPR”). Please click here to review.

For California Residents: The California Consumer Privacy Act (CCPA) requires that Tenable advise you of certain rights related to the collection of your private information. Please click here to review.

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