Senior Software Engineer - Fraud Detection & Prevention

Role Overview

AvidXchange is seeking a Senior Fraud Platform Engineer to lead the development of scalable fraud platform capabilities. Core capabilities of Fraud platform include Fraud detection, prevention, resolution, investigation and case management, and reporting and analytics. You will collaborate with Product, Architecture, and Engineering teams to develop intelligent solutions powered by AI and machine learning solutions in a Cloud and third-party solutions and expose APIs for real-time fraud insights and decisioning.

What You’ll Do:

Product and Platform Engineering:

• Design, develop, and implement advanced fraud detection systems using AI and machine learning algorithms (third party tools and Azure).
• Lead hands-on development and engineering of the end-to-end fraud platform.
• Build and scale machine learning models to predict and prevent fraud in real time
• Continuously optimize detection algorithms for accuracy, performance, and resiliency
• Drive application design at both system and component levels, advising on technology choices
• Work closely with cross-functional teams to design and implement API and data integrations.
• Develop and maintain scalable machine learning models to predict and prevent fraud.
• Perform full life cycle application development, enhancement, research, and proof of concepts.
• Participate in both low-level and high-level application design, providing guidance and feedback on available technology options.
• Implement event-driven architectures to enhance real-time data processing and streamline data flows for timely decision-making.
• Build cross-domain integration patterns for operational, analytical, and customer-facing workflows and data including MDM
• Apply CI/CD and DevOps practices to automate and streamline engineering workflows
• Diagnose and resolve performance, reliability, and security issues across the stack.

Collaboration and Leadership:

• Partner with cross-functional teams to embed fraud prevention across platforms and services.
• Contribute to architectural reviews and drive implementation of scalable fraud solutions.
• Mentor engineers by sharing technical expertise, reviewing code, and supporting onboarding.
• Work with Product Management to align on roadmap priorities and deliverables.
• Collaborate across engineering teams to ensure platform consistency and shared best practices.
• Engage with architects and developers to improve architecture, code quality, and delivery speed

Research and Analysis:

• Analyze large datasets to identify patterns and anomalies indicative of fraudulent activity.
• Investigate new techniques in fraud prevention, machine learning, and real-time analytics.
• Stay current with industry trends, tools, and techniques in fraud detection and AI.

What We’re Looking For:

• Bachelor’s or Master’s degree in Information Technology, Computer Science, or a related field.
• 10+ years of .NET software development experience creating SaaS-based applications.
• Proven experience (5+ years) in software engineering, with a focus on fraud technology, AI, and machine learning.
• Strong programming skills in languages such as Python and C++.
• Experience with machine learning frameworks and libraries (e.g., TensorFlow, PyTorch, scikit-learn).
• Knowledge of data analysis and visualization tools (e.g., SQL, Pandas, Matplotlib).
• Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and containerization technologies (e.g., Docker, Kubernetes).
• Strong knowledge of .NET 8.0, C#, Visual Studio, WCF, AJAX, HTML, ESB (Neuron a plus), Kendo UI, SSIS/T-SQL, jQuery, JSON, MVC 4/5, Entity Framework.
• Experience developing and integrating RESTful APIs, leveraging events, messaging systems, and ETL processes.
• Familiarity with event-driven architectures and technologies such as Kafka, Azure Service Bus, and Azure Event Hub.
• Strong interpersonal skills with the ability to work effectively in a team setting.
• Excellent problem-solving and troubleshooting skills.
• Experience with source control systems (such as CVS, Git, TFS) in continuous integration environments.
• Strong communication and collaboration skills, with the ability to work across diverse teams.
• Understanding of DevOps principles and CI/CD practices.

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. We focus on creating a culture of Diversity, Inclusion & Belonging, and are proud to be a safe place where teammates can bring their whole selves to work. 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 1,600 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 publicly traded 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, competitive benefits and equity options. 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
• 401k Match up to 4% 
• Parental Leave: 8 weeks 100% paid by AvidXchange** 
• Discounts on Pet, Home, and Auto insurance 
• BrightDime Financial Wellness Tool, offered free to teammates 
• 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.