Staff Security Engineer - AppSec
At its midpoint, $228k/yr, this role pays more than the $216k/yr midpoint for Application & Product Security openings today (usual band $175k–$345k/yr).
The full posting
Our Mission
6sense's mission is to multiply what matters: growth, retention, and efficiency. We envision a future where companies, teams and people reach their full potential.
Our People
People are the heart and soul of 6sense. We serve with passion and purpose. We live by our Being 6sense values of Win as One Team, Stay Curious, Do The Right Thing, Own the Outcome, and Create Belonging. Every 6sensor plays a part in defining the future of our industry-leading technology. 6sense is a place where difference-makers roll up their sleeves, take risks, act with integrity, and measure success by the value we create for our customers. We want 6sense to be the best chapter of your career.
Job Title
Staff Security Engineer, AppSec
Organizational Reporting
Manager, Security Engineering
Function/Dept
Business Technology / Security
Purpose of the Job
As members of 6sense’s Security department, the Security Engineering team protects the platform. Application Security Engineers work closely with engineering teams, product managers (PM), and third-party entities to ensure that 6sense SaaS products are secure.
Responsibilities & Accountabilities
- Serve as mentor to other Security Engineers, providing guidance and support
- Ability and willingness to assist with Senior level responsibilities if needed
- Support and consult with engineering and product teams around application security vulnerabilities.
- Assist teams in reproducing, triaging, and addressing application security vulnerabilities identified through Pen Testing, SAST, DAST, or Dependency scans
- Take initiative and drive changes in our bug bounty program which position us as an industry leading security program
- Lead in development of automated security testing to validate that secure coding best practices are being used
- Lead application security reviews and threat modeling, including code review and dynamic testing
- Lead and influence cross-functional changes across the Security organization
- Have significant ownership in and evangelize security training with development teams
- Drive initiatives which scale application security and holistically address multiple vulnerabilities found in a functional area
- Design and execute quarterly (O)KRs
Performance Measurement
- Understands the 6sense product and platform at an expert level
- Takes initiative to identify gaps and drive change to improve the security posture
- Participates in weekly 1:1s with manager and monthly skip levels
- Implements security controls considering the latest security threats, trends, and best practices to ensure that 6sense's security posture remains effective and efficient
- Manages vulnerabilities to remediation within targeted SLA or risk acceptance
- Maintains inventory of security scope for 6sense product(s)
- Maintains up to date collateral, metrics and processes
Educational and Experience Requirements
- 8+ years of experience in information security, with a focus on all aspects of application security, including threat modeling, developer training, vulnerability management, automated security testing, and code reviews.
- Expert understanding and ability to explain common security flaws and ways to remediate them (e.g. OWASP Top 10)
- Expert level of understanding of network and web related protocols (such as TCP/IP, UDP, HTTP, HTTPS protocols)
- Some development or scripting experience and skills in Python or JavaScript
- Excellent communication skills (written and verbal) with an ability to articulate complex topics in a clear and concise manner
- Experience working directly with software developers to improve code security
- Expert understanding and practical experience with common security libraries, security controls, and common security flaws
- Experience with security tools (e.g., Vulnerability Scanners, SAST/DAST, DevOps software, AWS cloud security tooling)
- Strong knowledge of industry frameworks, regulations and standards, such as: NIST 800-218 SSDF, OWASP, SAFECode, CIS benchmarks, ISO 27001, SOC 2, GDPR, PCI, SOX, NIST 800-53, etc.
Preferred Qualifications
- Bachelor's degree in a related field
- Relevant industry certifications, such as AWS, CNCF, and GIAC are highly desirable
Competencies and Behaviors
- Exceptional communication skills, including verbal, written, and presentation skills, and ability to appropriately address audience in communications
- Works independently and manage multiple projects simultaneously
- Influences and collaborates with cross-functional teams
- Translates technical requirements into actionable and timebound requests
- Drives projects and tasks to completion by following up on questions, deadlines, and requests for input
- Maintains accuracy of information
- Rapid and effective prioritization and escalation
Base Salary Range: $200,946.75 - $255,721.90 . The base salary range represents the anticipated low and high end of the base salary range for this position. Actual salaries may vary and may be above or below the range based on various factors, including but not limited to work location and experience. The base salary is one component of 6sense’s total compensation package for this position. Other compensation may include a bonus program or commission plan, and stock options if approved by 6sense’s board. In addition, 6sense provides a variety of benefits, including generous health insurance coverage, life, and disability insurance, a 401K employer matching program, paid holidays, self-care days, and paid time off (PTO). #Li-remote
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Our Benefits
Full-time employees can take advantage of health coverage, paid parental leave, generous paid time-off and holidays, quarterly self-care days off, and stock options. We’ll make sure you have the equipment and support you need to work and connect with your teams, at home or in one of our offices.
We have a growth mindset culture that is represented in all that we do, from onboarding through to numerous learning and development initiatives including access to our LinkedIn Learning platform. Employee well-being is also top of mind for us. We host quarterly wellness education sessions to encourage self care and personal growth. From wellness days to ERG-hosted events, we celebrate and energize all 6sense employees and their backgrounds.
Equal Opportunity Employer
6sense is an Equal Employment Opportunity and Affirmative Action Employers. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status. If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to jobs@6sense.com .
We are aware of recruiting impersonation attempts that are not affiliated with 6sense in any way. A ll email communications from 6sense will originate from the @6sense.com domain . We will not initially contact you via text message and will never request payments . If you are uncertain whether you have been contacted by an official 6sense employee, reach out to jobs@ 6sense.com
Where you can be based
This position is 100% remote and open to applicants based in United States.
Text as 6sense published it; last compared with the original on 12 Nov 2026.
The application
Your details, then 1 question.
- 1.Will you now or in the future require visa sponsorship?Yes or no
Taken from 6sense's application form as it stood on 12 Nov 2026.
The employer: 6sense
Sells AI-driven account intelligence to B2B sales and marketing teams; two staff security engineers, AppSec and security operations, are wanted remotely in the US.
Pay and benefits: Staff-level employee roles, remote anywhere in the US.
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