STATION F · 8 hours ago
PRINCIPAL SOFTWARE ENGINEER, US
New York, United States
Full-time
Hybrid
Lead/Staff
$220K/yr - $300K/yr
10+ years expDfns is a leading Wallets-as-a-Service platform, helping fintechs and enterprises manage digital assets. The Principal Software Engineer will lead the design and development of core backend systems, driving technical direction while mentoring senior engineers and collaborating with product and security teams.
Business DevelopmentIncubatorsInternet
Responsibilities
Lead the design and development of scalable, secure backend services and APIs
Define and evolve architecture for databases, microservices, and integrations
Own mission-critical projects end to end, from requirements to production and iteration
Troubleshoot and resolve complex performance and reliability challenges at scale
Drive improvements to CI/CD, observability, and engineering processes across teams
Collaborate with leadership to shape roadmap priorities and long-term technical vision
Mentor engineers, promote best practices, and represent Dfns in client discussions
Qualification
Required
10+ years of backend software engineering, with leadership in fintech or blockchain
Mastery of TypeScript plus one or more systems languages (Rust, Go, C++)
Proven track record building scalable APIs, infrastructure, and developer platforms
Deep expertise with databases (PostgreSQL, DynamoDB, NoSQL) and cloud (AWS)
Strong knowledge of microservices, CI/CD pipelines, observability, and SSDLC
Familiar with applied cryptography, PKI, and secure backend architectures
Exceptional problem-solving, communication, and ability to influence technical direction
Preferred
Lead the design and development of scalable, secure backend services and APIs
Define and evolve architecture for databases, microservices, and integrations
Own mission-critical projects end to end, from requirements to production and iteration
Troubleshoot and resolve complex performance and reliability challenges at scale
Drive improvements to CI/CD, observability, and engineering processes across teams
Collaborate with leadership to shape roadmap priorities and long-term technical vision
Mentor engineers, promote best practices, and represent Dfns in client discussions
Benefits
Healthcare and travel expenses
Company
STATION F
STATION F is a business incubator for startups.
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Kaan Armagan
Founder in Residence
Romain LAURENT
Founder in Residence
Recent News
The French Tech Journal
2025-11-14
The French Tech Journal
2025-11-10
The French Tech Journal
2025-11-06
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