Security Engineer II - Security Operations

Overview

AvidXchange is seeking a driven and detail-oriented Security Engineer II to join our Technology and Security organization, with a primary focus on Security Operations, detection engineering, and incident response. In this role, you will enhance and operate the security controls, automations, and monitoring capabilities that protect our systems, data, and infrastructure. You’ll collaborate closely with Security Engineering, Architecture, Technology Operations, and Software Engineering to strengthen our detection posture, streamline response workflows, and continuously improve our SIEM/SOAR ecosystem.

This position is ideal for someone who thrives in fast paced environments, enjoys solving complex security problems, and is passionate about building scalable, automated, and resilient detection and response capabilities.

What You’ll Do

• Develop, tune, and maintain SIEM detections, SOAR automations, processes, and playbooks to improve detection accuracy and response efficiency.

• Monitor, analyze, and triage security alerts, logs, and telemetry to identify threats, suspicious activity, and opportunities for improved visibility.

• Partner with diverse teams to support incident response, including investigation, containment, remediation, and post incident reviews.

• Continuously refine alerting logic to reduce false positives and enhance signal to noise ratio across security tools and platforms.

• Collaborate with engineering and operations teams to ensure logging, monitoring, and security controls are properly implemented and aligned with best practices.

• Evaluate and optimize security technologies to improve automation, detection coverage, and operational efficiency.

• Contribute to threat modeling and detection engineering efforts by researching emerging threats, attacker techniques, and relevant security trends.

• Assist with compliance, audit, and risk assessment activities by providing evidence, documentation, and remediation guidance.

• Maintain and update security documentation, including operational procedures, architecture diagrams, and response playbooks.

• Participate in the on-call rotation to provide timely incident response, including triage, investigation, containment, and escalation of security events, while ensuring clear communication and thorough documentation throughout the response lifecycle.

What We’re Looking For

• 3+ years of experience in security operations, detection engineering, cybersecurity engineering, or a related technical discipline.

• Hands‑on experience with SIEM/SOAR platforms, including alert creation, tuning, automation workflows, and log onboarding.

• Strong understanding of security monitoring concepts, attacker TTPs, and frameworks such as MITRE ATT&CK.

• Experience with cloud environments (Azure, AWS, or GCP) and cloud native logging, monitoring, and security controls.

• Proficiency with scripting or programming languages (YARA-L, Python, PowerShell, etc.) for automation, data analysis, and tool integration.

• Familiarity with incident response processes, vulnerability management, and security architecture fundamentals.

• Strong communication and collaboration skills, with the ability to work effectively across technical and business teams.

• Security certifications such as CySA+, GSEC, GCIA, GMON, CEH, CCSP, or CISSP are strongly preferred.

• Experience working in agile, DevSecOps, or high-velocity operational environments.

• A proactive, analytical mindset with the ability to identify gaps, propose improvements, and drive operational excellence.

About AvidXchange

AvidXchange is a leading provider of accounts payable (“AP”) automation software and payment solutions for middle-market businesses and their suppliers. By trade, we are a technology company, but if you ask anyone who works here, they’ll tell you our people are at the core of who we are. At AvidXchange, mindset is everything. We are Connected as People, Growth Minded, and Customer Obsessed. These three mindsets represent our culture – who we are, who we’ve always been, and they guide us to improve every day. Since our founding in 2000 in Charlotte, NC, we’ve created a company of over 1,500 teammates working across the U.S., or remotely. AvidXchange is proud to be Certified™ as a Great Place to Work®. The prestigious recognition is based on anonymous data from our teammates and makes official what our teammates have known for years – that AvidXchange is a Great Place to Work®. 

Who you are: 

• A go-getter with an entrepreneurial mindset – that means you are not afraid of taking risks, winning big or facing the unknown. 
• Someone who understands that business is people centric. Connecting with others as humans first allows you to develop mutually beneficial working relationships. 
• Focused on making a difference for our customers. AvidXchange exists to help solve complex problems for our customers so we can all realize our potential. 

What you’ll get:  

AvidXchange teammates (we call them AvidXers) get the perks and prestige of a growing tech company paired with the flexibility of a founder-led startup. We help our AvidXers develop as professionals and as human beings, providing work/life balance, development programs, and competitive benefits. At AvidXchange, we are building more than a tech company – we are building an experience. We remain committed to a culture where you can fully be 'you’ – connected with others, chasing big goals, and making a meaningful impact. If you want to help us grow while realizing your potential and creating stories you’ll tell for years, you’ve come to the right place.

AvidXers enjoy:  

• 18 days PTO* 
• 11 Holidays (8 company recognized & 3 floating holidays) 
• 16 hours per year of paid Volunteer Time Off (VTO) 
• Competitive Healthcare 
• High Deductible Heath Plan Option that has $0 monthly premium for teammate-only coverage 
• 100% AvidXchange paid Dental Base Plan Coverage
• 100% AvidXchange paid Life Insurance 
• 100% AvidXchange paid Long-Term Disability 
• 100% AvidXchange paid Short-Term Disability  
• Employee Assistance Program (EAP) - Provides counseling services, legal and financial consultations and health advocacy for Teammates and their eligible dependents
• Onsite Health Clinic with Atrium Health - available to Teammates and their eligible dependents
• 401(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 insurance 
• WeeCare Childcare Service: helps teammates find affordable daycare, childcare, and tutors 40% less expensive than traditional daycare centers 
• Perks at Work: free discount program that provides teammates the opportunity to save on items from electronics, movie tickets, car buying, vacations, and more 
• Onsite gym fitness center, yoga studio, and basketball court
• Tuition Reimbursement up to the federal maximum of $5,250***
• Hybrid Workplace Flexibility
• Free parking

*Fully granted from beginning of year, pro-rated if hired mid-year 

**Must be full-time for at least 3 months

***Must be full-time for at least one year 

Equal Employment Opportunity

AvidXchange is an equal opportunity employer. AvidXchange is committed to equal employment opportunity in accordance with applicable federal, state, and local laws. AvidXchange will not discriminate against applicants for employment on any legally recognized basis. This includes, but is not limited to veteran status, race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, age and physical or mental disability.