NMI ยท 3 days ago
Senior Staff Software Engineer
United States
Full-time
Remote
Senior Level, Lead/Staff
$130K/yr - $160K/yr
8+ years expNMI is a company that empowers partners with innovative payment solutions. As a Senior Staff Software Engineer, you will provide technical leadership and collaborate across teams to enhance partner-facing platform capabilities while focusing on long-term platform health and integration experiences.
Financial Services
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
Qualification
Required
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
Preferred
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
Background in payments, fintech, or other high-availability, security-sensitive platforms
Benefits
A remote first culture!
Flex PTO
Health, Dental and Vision Insurance
13 Paid Holidays
Company volunteer days
Company
NMI
NMI is a global leader in embedded payments, powering more than $200 billion in payment volumes every year.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Kyle Pexton
CFO
Scott Hart, CFA
Chief Financial Officer
Company data provided by crunchbase