Senior Software Engineer, AI-Driven Payments (Remote)

NMI; Schaumburg (IL); Remote; USD 115,000 - 130,000; Full time

Benefits offered by this job

Remote first culture

Competitive compensation and benefits

Personal growth and advancement

Flex PTO & dedicated sick time

Health, Dental and Vision Insurance

401k matching up to 4%

Flexible Spending Account

Employee referral program

Bonusly colleague recognition

Job summary

NMI is seeking a Senior Software Engineer to join our Development team in Schaumburg, IL. You will design, develop, and maintain billing and invoicing systems using C# and PHP, while leveraging AI tools like Claude and Cursor to boost productivity and quality.

The role requires at least 5 years of experience in complex software development in an agile environment, with strong security and PCI knowledge. You will mentor peers and contribute to CI/CD improvements and scalable architectures.

Qualifications

• Bachelor's degree in Computer Science or equivalent experience.
• Minimum of 5 years of experience developing complex software in a collaborative, agile environment.
• Advanced proficiency in C# and/or PHP with strong OO design and patterns.
• Strong knowledge of security and compliance best practices (OWASP, PCI).
• Experience designing scalable, distributed systems with performance and reliability in mind.

Responsibilities

• Design, develop, and maintain core billing and invoicing systems using C# and PHP.
• Lead AI-assisted development with Claude and Cursor in daily workflows.
• Review AI-generated code for correctness, security, and performance before production.
• Own architectural decisions for billing components and drive best practices.
• Mentor junior team members and coach on safe AI tool usage.
• Improve CI/CD pipelines and development processes; implement monitoring and alerting.
• Collaborate with Product Owners, Developers, and QA to ensure successful releases.
• Identify and mitigate security risks throughout the software lifecycle.

Skills

C#

PHP

OO design

Design patterns

Security best practices

Mentoring

Communication

Education

Bachelor's degree in Computer Science or equivalent experience

Tools

Kubernetes

Docker

Claude

Cursor

DataDog

NewRelic

Logz.io

Job description

NMI is seeking a Senior Software Engineer to join our Development team in Schaumburg, IL. You will design, develop, and maintain billing and invoicing systems using C# and PHP, while leveraging AI tools like Claude and Cursor to boost productivity and quality.

The role requires at least 5 years of experience in complex software development in an agile environment, with strong security and PCI knowledge. You will mentor peers and contribute to CI/CD improvements and scalable architectures.