[Remote] Senior Application Security Engineer

Note: The job is a remote job and is open to candidates in USA. AvidXchange is a dynamic and innovative technology-driven B2B payments organization seeking a highly skilled and motivated Senior Application Security Engineer to join their team. In this role, you will be responsible for ensuring the security and integrity of applications, systems, and data by identifying and remediating vulnerabilities and threats across the product portfolio.ResponsibilitiesCross-functionally collaborate with technology teams to identify and remediate security issuesProvide guidance to product and technology teams on security best practicesUsing a variety of tools and experience, develop an understanding of application risk profile, build relationships, and influence decisions to continuously maintain cybersecurity resilienceWill utilize software architecture security analysis, web application penetration testing, and application reverse engineeringDevelop training based on experience and discovery targeting identified areas of opportunityUnderstand root causes, identify data and patterns associated with potential weaknesses, and drive improvements across all levels of leadershipAssist in investigating, analyzing, and responding to security incidents related to applications, ensuring timely resolution and documentation of incidentsLead threat modeling and risk discovery efforts across multiple product verticals, provide guidance and mentorship within team and organizationSkills5+ years information security experience in a SaaS environment with a deep understanding of application securityExperience using common application security tools like (Burp Suite, OWASP ZAP) used for security testingKnowledge of and experience in implementing application security tools and platforms and integrating them into SDLC processes and code delivery pipelinesDeep understanding of security protocols, encryption methods, CI/CD pipelines and DevSecOps practicesAppsec-level proficiency in programming languages (such as .Net, JavaScript, TypeScript, Java, Python)Experience leveraging AI tooling and capabilities (LLM / MCP) in an information security contextStrong technical aptitude, genuine “ambassador and practitioner” interest in cybersecurity and technology, problem solver attitudeProven ability to think critically and address complex security challenges by building strong relationships with colleagues and stakeholdersSelf-motivated and proactive mindset in identifying potential security risks and implementing preventive measuresExcellent verbal and written communication skills to convey complex security concepts to both technical and non-technical stakeholdersAbility to work well within a team and across departments to achieve common security goalsCertifications such as CPSA, CRT, CCSAS, CompTIA Pentest+, OSCP, ECSA/LPT, CISSPWorking knowledge of infrastructure as code tools, serverless architecturesBenefits18 days PTO*11 Holidays (8companyrecognized 3 floatingholidays)16 hours per year ofpaid Volunteer Time Off (VTO)Competitive HealthcareHigh Deductible Heath Plan Option that has $0 monthly premium for teammate-only coverage100% AvidXchange paid Dental Base Plan Coverage100% AvidXchange paid Life Insurance100% AvidXchange paid Long-Term Disability100% AvidXchange paid Short-Term DisabilityEmployee Assistance Program (EAP) - Providescounseling services, legal and financial consultations and health advocacy for Teammates and their eligible dependentsOnsite Health Clinic with Atrium Health - available to Teammates and their eligible dependents401(k) Match: 100% match on the first 3% of your salary, plus 50% match on the next 2%Parental Leave: 8 weeks 100% paid by AvidXchange**Discounts on Pet, Home, and Auto insuranceWeeCareChildcare Service:helps teammates find affordable daycare,childcare,andtutors 40%less expensivethan traditional daycarecentersPerks at Work:free discount program that provides teammates the opportunity to save on items fromelectronics, movie tickets, car buying, vacations,andmoreOnsite gym fitness center, yoga studio, and basketball courtTuition Reimbursement up to the federal maximum of $5,250***Hybrid Workplace FlexibilityFree parkingCompany OverviewWe are a leading provider of accounts payable automation software and payment solutions for mid-market businesses and their suppliers. It was founded in 2000, and is headquartered in Charlotte, North Carolina, USA, with a workforce of 1001-5000 employees. Its website is http://www.avidxchange.com.Company H1B SponsorshipAvidXchange, Inc. has a track record of offering H1B sponsorships, with 10 in 2026, 56 in 2025, 36 in 2024, 32 in 2023, 45 in 2022, 16 in 2021, 24 in 2020. Please note that this does not guarantee sponsorship for this specific role.