Remote (Global)

NMI is hiring a Senior Staff Software Engineer

Responsibilities

  • Provide technical leadership for the team, influencing architecture and design decisions that span multiple teams.
  • Own and evolve critical platform areas including partner onboarding, developer tooling, authentication, user management, and the unified partner portal.
  • Identify long-term technical risks and opportunities, and lead initiatives to address scalability, reliability, security, and maintainability.
  • Set and reinforce engineering standards, patterns, and best practices across teams.
  • Collaborate closely with Engineering Managers and Directors to align technical strategy with delivery plans and team goals.
  • Partner with Product Managers, Directors, and Designers to translate product vision into technically sound, scalable solutions.
  • Act as a trusted technical advisor across teams, helping resolve complex cross-team dependencies and tradeoffs.
  • Drive alignment and consistency across partner-facing systems and experiences.
  • Design, implement, and review high-impact code, particularly in complex or high-risk areas.
  • Lead technical discovery and execution for ambiguous or strategically important initiatives.
  • Ensure solutions are well-tested, observable, and production-ready.
  • Balance short-term delivery needs with long-term platform health.
  • Mentor senior and mid-level engineers, helping them grow in technical depth, system design, and scope of impact.
  • Raise the quality bar through thoughtful code reviews, architectural guidance, and knowledge sharing.
  • Foster a culture of continuous improvement, learning, and technical curiosity.
  • Champion secure-by-design principles, particularly around authentication, authorization, and partner data access.
  • Work closely with SRE and platform teams to ensure systems meet reliability, availability, and performance expectations.
  • Improve observability, operational readiness, and incident learnings across partner-facing systems.

Requirements

  • Bachelor’s degree in Computer Science, Information Technology, or equivalent practical experience.
  • 8+ years of experience developing complex software applications in a commercial environment, with demonstrated impact at the Staff or Senior Staff engineer level.
  • Advanced, hands-on experience building and maintaining large-scale systems using .NET Framework / C# (preferred) and/or PHP, with a strong understanding of object-oriented design principles and software architecture.
  • Strong experience working with relational databases, particularly Microsoft SQL Server, including schema design, query optimization, performance tuning, and maintaining data integrity in production systems.
  • Proven experience designing, coding, deploying, and operating cloud-based solutions hosted on AWS, with an understanding of scalability, fault tolerance, security, and cost-aware design.
  • Experience designing and architecting scalable, distributed systems, with consideration for performance, reliability, and long-term maintainability.
  • Deep understanding of the Software Development Life Cycle (SDLC) and agile development methodologies.
  • Strong knowledge of security best practices, including secure coding principles and compliance requirements (e.g., OWASP Top Ten, PCI DSS, SOC 2, HIPAA, or similar).
  • Solid understanding of networking fundamentals, including HTTPS, DNS, SSL/TLS, and service-to-service communication patterns.
  • Deep knowledge of design patterns and their practical application in real-world systems.
  • Proven ability to translate complex business requirements into clear, technically sound solutions, particularly in ambiguous or evolving problem spaces.
  • Demonstrated success performing code reviews and maintaining high code quality standards, including testability, readability, and maintainability.
  • Proven ability to understand, debug, and evolve complex existing systems, often with limited documentation and changing requirements.
  • Experience mentoring engineers and influencing technical decisions through expertise, collaboration, and thoughtful guidance.
  • Strong problem-solving skills, with the ability to anticipate risks, identify root causes, and proactively address issues.
  • Excellent communication skills, with the ability to clearly explain complex technical concepts to both technical and non-technical stakeholders.
  • Proven ability to work independently while also fostering cross-team collaboration.
  • Experience working effectively with remote and globally distributed teams.

Nice to Have

  • Experience with containerization and orchestration technologies such as Docker and Kubernetes.
  • Familiarity with CI/CD pipelines, automated testing, and deployment processes.
  • Experience with monitoring, logging, and observability tools (e.g., Datadog, New Relic, Logz.io, or similar).
  • Experience modernizing or incrementally evolving legacy systems toward cloud-native architectures.

Benefits

  • Annual salary of $130,000 - $160,000 + bonus
  • A remote first culture!
  • Flex PTO
  • Health, Dental and Vision Insurance
  • 13 Paid Holidays
  • Company volunteer days

Additional Information

  • Please be aware that all offers of employment are made subject to receipt of satisfactory background and financial checks.
Required Skills
.NET FrameworkC#PHPMicrosoft SQL ServerAWSSoftware ArchitectureSystem DesignAPI DevelopmentCloud ComputingAgile MethodologiesCI/CDPerformance OptimizationSecurity Best PracticesMicroservicesLeadership security best practicesincluding secure coding principlesdesign patternstheir practical applcontainerizationorchestration technCI/CD pipelinesautomated testingdeployment processes.monitoringloggingobservability tools
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About company
NMI
NMI enables our partners with choice, and challenges the one-size-fits-all approach to payments. We’re the platform that powers success for innovative tech created by SMBs, entrepreneurs and fintech startups. We democratize the latest payments technology so that everyone can realize the benefits of easy payments across the full spectrum of commerce.
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Job Details
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Posted 5 months ago