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I'm Wesley Wang, a Senior Software Engineer based in Chicago with over 10 years of experience building secure payment platforms, healthcare applications, and cloud-based software solutions. I specialize in payment processing integrations, HIPAA-compliant healthcare systems, scalable backend services, and modern web applications using Node.js, React, and AWS. I enjoy leading architecture discussions, delivering reliable payment experiences, and collaborating with cross-functional teams to improve operational efficiency in distributed environments.…I'm Wesley Wang, a Senior Software Engineer based in Chicago with over 10 years of experience building secure payment platforms, healthcare applications, and cloud-based software solutions. I specialize in payment processing integrations, HIPAA-compliant healthcare systems, scalable backend services, and modern web applications using Node.js, React, and AWS. I enjoy leading architecture discussions, delivering reliable payment experiences, and collaborating with cross-functional teams to improve operational efficiency in distributed environments.

Wesley Wang

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I'm Wesley Wang, a Senior Software Engineer based in Chicago with over 10 years of experience building secure payment platforms, healthcare applications, and cloud-based software solutions. I specialize in payment processing integrations, HIPAA-compliant healthcare systems, scalable backend services, and modern web applications using Node.js, React, and AWS. I enjoy leading architecture discussions, delivering reliable payment experiences, and collaborating with cross-functional teams to improve operational efficiency in distributed environments.…I'm Wesley Wang, a Senior Software Engineer based in Chicago with over 10 years of experience building secure payment platforms, healthcare applications, and cloud-based software solutions. I specialize in payment processing integrations, HIPAA-compliant healthcare systems, scalable backend services, and modern web applications using Node.js, React, and AWS. I enjoy leading architecture discussions, delivering reliable payment experiences, and collaborating with cross-functional teams to improve operational efficiency in distributed environments.

Available to hire

I’m Wesley Wang, a Senior Software Engineer based in Chicago with over 10 years of experience building secure payment platforms, healthcare applications, and cloud-based software solutions. I specialize in payment processing integrations, HIPAA-compliant healthcare systems, scalable backend services, and modern web applications using Node.js, React, and AWS.

I enjoy leading architecture discussions, delivering reliable payment experiences, and collaborating with cross-functional teams to improve operational efficiency in distributed environments.

Skills

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Work Experience

Senior Software Engineer at Amazon

March 1, 2024 - February 1, 2026

Led modernization of healthcare payment workflows and secure processor integrations, reducing payment failures by 30% across customer-facing applications. Architected migrations for third-party payment processor integrations with resilient REST APIs and transaction services for HIPAA-aligned healthcare payment operations. Designed scalable payment orchestration services using Node.js, PostgreSQL, and Docker to improve throughput by 25% while ensuring security and audit compliance. Implemented payment reconciliation automation via AWS Lambda, DynamoDB, and event-driven workflows, cutting manual effort across finance and support teams. Collaborated with compliance and security teams to enforce HIPAA controls, encryption standards, and access governance. Built responsive payment administration interfaces using React and TypeScript. Integrated external payment gateways via secure REST APIs with robust error handling and failover. Established monitoring with CloudWatch and dashboards, accel

Senior Software Engineer at Scale AI

May 1, 2021 - February 1, 2024

Developed customer billing and transaction services using Node.js, PostgreSQL, and AWS, improving payment processing reliability by 25% across enterprise customers. Architected integration services connecting external payment providers via secure REST APIs, enabling invoicing, subscription management, and transaction reporting. Led backend modernization with Microservices, Docker, and Kubernetes, improving scalability and deployment consistency. Built customer-facing dashboards with React and TypeScript for transaction visibility and reconciliation. Implemented automated alerting, monitoring, and service health checks using CloudWatch, reducing production incident response times. Collaborated with product, finance, and infrastructure teams to troubleshoot integration challenges and deliver stable experiences. Optimized PostgreSQL performance through indexing and schema improvements. Created integration documentation and onboarding materials; drove CI/CD with GitHub Actions and automate

Software Engineer at Carbon Health

November 1, 2018 - April 1, 2021

Developed healthcare billing applications using React, Node.js, and PostgreSQL, improving transaction completion rates by 20%. Implemented HIPAA-compliant API integrations connecting healthcare systems, payment services, and patient portals while maintaining security and privacy standards. Built backend services for payment processing, billing management, and transaction auditing across clinical operations platforms. Collaborated with product, operations, and compliance teams to resolve payment integration issues and streamline patient billing experiences. Enhanced reliability through automated testing, production monitoring, and troubleshooting; created technical documentation and support resources to accelerate onboarding. Optimized PostgreSQL performance for billing and patient account management workflows.

Software Developer at Accenture

November 1, 2015 - October 1, 2018

Developed enterprise web applications using Java, Spring Boot, and MySQL for financial transaction processing and client-facing business operations. Implemented third-party system integrations via REST APIs for secure data exchange, payment workflows, and automation. Built frontend components using JavaScript, HTML, and CSS; delivered responsive interfaces. Collaborated with cross-functional delivery teams to troubleshoot production issues and support successful customer implementations. Contributed to testing, deployment, and documentation following enterprise software engineering practices.