Senior Software Engineer Jobs

Parking Network B.V.

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

NMI is looking for a passionate Senior Software Engineer to join our Development team as a result of NMI’s continued growth and investment in the underlying systems. As a senior developer with strong experience in C# and/or PHP, you will join a team of industry-leading experts that are talented, ambitious and want to drive the continued development of our payment processing services. Our developers are responsible for software services and deliverables that support the processing of billions of transactions for hundreds of thousands of merchants every year. These applications have to be efficient, reliable, redundant, secure, highly-available and scalable.

Job Responsibility:

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
Actively mentor and support the growth of junior team members
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
Communicate project status, risks, and technical decisions effectively to both technical and non-technical stakeholders
Collaborate closely with Product Owners, Developers, and QA teams to ensure successful product releases
Proactively identify, assess, and mitigate risks, including security risks, throughout the software development lifecycle
Provide feedback and resolutions to escalated support issues
Research and evaluate new technologies and methodologies to improve system performance and developer productivity

Requirements:

Bachelor's degree in Computer Science or equivalent experience
Minimum of 5 years of experience developing complex software applications in a collaborative, agile environment
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)
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 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

Nice to have:

Experience with logging systems (such as Logz.io) and optimizing logs
Experience with containerization (e.g. Kubernetes, Docker, etc.)
Experience with monitoring and alerting systems (e.g. DataDog, NewRelic, etc.)
Experience with CI/CD pipelines, automated testing, and deployment processes
A background in the development of accounting or billing systems

What we offer:

Annual salary + bonus
A remote first culture
Flex PTO
Health, Dental and Vision Insurance
13 Paid Holidays
Company volunteer days

Additional Information:

Job Posted:
December 11, 2025

Expiration:
December 29, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Senior Software Engineer