Staff Software Engineer

As a Staff Software Engineer at NMI, you are a highly experienced individual contributor who operates beyond a single team while remaining closely connected to hands-on delivery. You bring strong technical judgment, a collaborative mindset, and a focus on building reliable, secure, and maintainable software.

In this role, you will work across the Partner Activation and Partner Administration teams, contributing to the design and implementation of partner-facing systems that enable efficient integrations and a cohesive platform experience. You will collaborate with Engineering Managers, Product Managers, Designers, and fellow engineers to translate business needs into high-quality technical solutions.

This role emphasizes hands-on engineering, thoughtful technical decision-making, and collaboration across teams to improve partner onboarding, administration, and long-term platform health.

Key Responsibilities

• Contribute to the technical design and implementation of partner-facing systems across Partner Activation and Partner Administration.
• Design and build scalable, secure, and maintainable services using established architectural patterns and best practices.
• Collaborate across teams to deliver cohesive partner onboarding and administration experiences.
• Translate business and product requirements into practical technical solutions.
• Write, review, and maintain high-quality code with a focus on reliability and long-term maintainability.
• Identify technical risks and improvement opportunities within owned systems and raise them proactively.
• Support production systems by improving testing, observability, and operational readiness.
• Mentor junior and mid-level engineers through code reviews, pairing, and technical guidance.

Skills and Experience

• Bachelor’s degree in Computer Science, Information Technology, or equivalent practical experience.
• 6–8+ years of experience developing complex software applications in a commercial environment.
• Strong hands-on experience with .NET Framework / C# (preferred) and/or PHP, building backend services and APIs.
• Experience working with Microsoft SQL Server or other relational databases, including schema design and performance tuning.
• Hands-on experience designing, deploying, and operating cloud-based solutions on AWS.
• Experience contributing to distributed systems, with consideration for performance, reliability, and maintainability.
• Solid understanding of the Software Development Life Cycle (SDLC) and agile development practices.
• Working knowledge of secure coding practices and compliance-aware development (e.g., OWASP, PCI, SOC 2, HIPAA).
• Understanding of networking fundamentals such as HTTPS, DNS, and SSL/TLS.
• Experience participating in code reviews and maintaining quality standards.
• Ability to debug and enhance existing systems, sometimes with limited documentation.
• Strong problem-solving and communication skills.
• Experience working effectively with remote and cross-functional teams.

Nice to Have

• Experience with Docker, Kubernetes, CI/CD pipelines, and automated testing.
• Familiarity with monitoring and logging tools (e.g., Datadog, New Relic, Logz.io).
• Experience modernizing legacy systems.
• Background in payments, fintech, or other high-availability systems.

As well as being a part of something exciting everyday, you will also receive the following benefits:

• • Annual salary of $120,000 - $140,000 + bonus
  • A remote first culture!
  • Flex PTO
  • Health, Dental and Vision Insurance
  • 13 Paid Holidays
  • Company volunteer days

What we do!

NMI enables our partners with choice, and challenges the one-size-fits-all approach to payments. You've probably used NMI in the last 24 hours without even realizing it. We’re the platform that powers success for innovative tech created by SMBs, entrepreneurs and fintech startups. We’re creative problem solvers who help visionaries smash through boundaries and think beyond what’s possible so they can think about what’s next. But we’re not just built for the tech savvy. We democratize the latest payments technology so that everyone can realize the benefits of easy payments across the full spectrum of commerce. We’re all about enabling more payments in more ways and more places.

We believe that having a diverse group of employees strengthens both our work and our workplace. We’re focused on making NMI more diverse and welcoming with initiatives like having a dedicated Diversity, Equity Inclusion action group, diversity goals for hiring, anonymized resume screening, affinity groups such as our Women's network and LGBTQ+ Network, open forums for discussions on diversity and social justice, and measuring inclusion and belonging as part of our regular employee engagement surveys.

Equal Opportunity

NMI is committed to providing equal employment opportunity for all persons regardless of race, color, religion, sex, age, marital status, national origin, sexual orientation or sexual identity, genetic information, citizen status (except those that do not have the legal right to be employed in the United States), disability, military service, service member, veteran status, or any other basis protected by applicable law.

Please be aware that all offers of employment are made subject to receipt of satisfactory background and financial checks.

Attention job applicants: Please note that in compliance with the data protection regulations within your jurisdiction, any personal information submitted with your job application may be collected and used by NMI for the purpose of recruitment and employment-related activities. By submitting your application, you acknowledge and provide explicit consent to the processing of your personal information as described in our privacy policy found on our website. For more information on how we process your information, please read our privacy policy here: https://www.nmi.com/legal/privacy-policy/