NMI is seeking a Senior Software Engineer to support the continued development of their payment processing services, which handle billions of transactions for hundreds of thousands of merchants annually. The role is focused on ensuring the efficiency, reliability, redundancy, security, high availability, and scalability of their core billing and invoicing systems.
Requirements
- Advanced proficiency in C and/or PHP, with strong understanding of object-oriented design principles and design patterns
- Advanced experience with database design, optimization, and performance tuning
- Strong knowledge of security and compliance best practices (e.g. OWASP, PCI)
- Experience designing and architecting scalable, distributed systems with consideration for performance, reliability, and maintainability
- Ability to translate complex business requirements into technical solutions
- Proven track record of code reviews and maintaining code quality standards
- Proven ability to understand, debug, and enhance complex existing systems with limited documentation and evolving requirements
Responsibilities
- Design, develop, and maintain core billing and invoicing systems using C and PHP technologies
- Take ownership of architectural and design decisions for billing system components
- Lead technical discussions, participate in code reviews, and drive best practices in maintainability and performance
- Lead improvements to CI/CD pipelines and development processes
- Implement monitoring, logging, and alerting systems to proactively identify and resolve issues
- Optimize database queries and system architecture to handle growing merchant and transaction volumes
- Implement robust security measures to protect sensitive payment and merchant data and ensure compliance with PCI DSS standards
Other
- Bachelor's degree in Computer Science or equivalent experience
- Minimum of 5 years of experience developing complex software applications in a collaborative, agile environment
- Excellent communication skills, with a proven ability to mentor others, contribute to a strong team culture, and work with others across teams to move projects forward
- Experience with logging systems (such as Logz.io) and optimizing logs preferred
- Experience with containerization (e.g. Kubernetes, Docker, etc.) preferred
