Dfns

Senior Software Engineer

8+ years backend software engineering in fintech; strong TypeScript; databases (PostgreSQL, DynamoDB, NoSQL); AWS; microservices; CI/CD; security fundamentals.

Principal Software Engineer, APAC

Principal Software Engineer

10+ years backend experience in fintech or blockchain; TypeScript expertise; strong DBs (PostgreSQL, DynamoDB, NoSQL); AWS; microservices; CI/CD; observability; secure architectures.

VP Fintech, US

VP Fintech Sales

8+ years fintech or infrastructure software sales; proven fintech/API sales; strong product/architecture knowledge; English fluency; CRM proficiency.

VP Institutional Sales, US

VP Institutional Sales

8+ years enterprise sales in fintech or infrastructure; proven large institutional deals; English fluent; CRM and modern sales tooling; strong communication and relationship-building; willing to travel.

VP Institutional Sales, EMEA

8+ years of enterprise sales experience; track record closing large institutional deals; strong knowledge of financial markets or fintech ecosystems; English fluency; CRM proficiency.

Commercial Counsel

6+ years in commercial or contracts law; in-house preferred; France bar admission; multi-jurisdictional EU/US a plus; strong drafting/negotiation; English fluent; French a plus.

Principal Security Engineer

10+ years in security engineering or architecture; experience securing financial/fintech or blockchain systems; strong cryptography and wallet knowledge; system-level threat modeling; AWS; secure SDLC; ISO/NIST/CIS/SOC2 familiarity; backend languages TypeScript or Rust.

Principal Solutions Engineer, US

Principal Solutions Engineer

10+ years in solutions engineering with enterprise integration; strong API experience (REST); cloud, microservices, serverless; enterprise security frameworks; excellent communication and documentation; knowledge of blockchain and financial workflows preferred.

Lead Mobile Engineer

8+ years mobile engineering; expert in React Native or native mobile; strong UX focus; secure authentication; fintech/onchain experience.

Senior Blockchain Engineer

Blockchain Engineer

8+ years software engineering with 2+ years in blockchain; strong TypeScript; plus Rust or C++; experience with blockchain indexers, smart contracts, and data pipelines; security and observability focus.

8+ years backend software engineering in fintech; strong TypeScript; experience with PostgreSQL, DynamoDB, NoSQL; AWS; microservices; CI/CD; observability; security fundamentals; strong problem solving and communication.

Senior Infrastructure Engineer

Infrastructure Engineer

8+ years in infrastructure/DevOps/SRE; strong AWS; Terraform; Docker/Kubernetes; Datadog; SQL/NoSQL; scripting (Python, Rust, TypeScript); security; blockchain experience a plus.

Title	Location	Date
Senior Software Engineer Full Time · $80K-$140K · 8+ YOE Paris, ., France · Remote	Paris, ., France Remote	Mar 11, 2026
Principal Software Engineer, APAC Full Time · $160K-$240K · 10+ YOE Hong Kong or Singapore · Remote	Hong Kong or Singapore Remote	Mar 9, 2026
VP Fintech, US Full Time · $140K-$200K · 8+ YOE San Francisco or United States · Remote	San Francisco or United States Remote	Mar 9, 2026
VP Institutional Sales, US Full Time · $140K-$200K · 8+ YOE New York, New York, United States · Remote	New York, New York, United States Remote	Mar 9, 2026
VP Institutional Sales, EMEA Full Time · $90K-$150K · 8+ YOE Paris, Île-de-France, France · Remote	Paris, Île-de-France, France Remote	Mar 9, 2026
Commercial Counsel Full Time · $80K-$120K · 6+ YOE Paris, /, France · Remote	Paris, /, France Remote	Feb 23, 2026
Principal Security Engineer Full Time · $220K-$300K · 10+ YOE Paris or New York · Remote	Paris or New York Remote	Feb 23, 2026
Principal Solutions Engineer, US Full Time · $160K-$240K · 10+ YOE New York, New York, United States · Remote	New York, New York, United States Remote	Feb 23, 2026
Lead Mobile Engineer Full Time · $120K-$220K · 8+ YOE Paris or New York · Remote	Paris or New York Remote	Feb 23, 2026
Senior Blockchain Engineer Full Time · $140K-$240K · 8+ YOE Paris or New York · Remote	Paris or New York Remote	Feb 23, 2026
Senior Software Engineer Full Time · $160K-$220K · 8+ YOE New York, New York, United States · Remote	New York, New York, United States Remote	Feb 23, 2026
Senior Infrastructure Engineer Full Time · $220K-$300K · 8+ YOE New York, New York, United States · Remote	New York, New York, United States Remote	Feb 16, 2026

Name	Dfns
Headquarters	FR
Industries	FintechBlockchain Infrastructure
Activities	Wallet-as-a-ServiceDigital asset custodyKey managementBlockchain API servicesCybersecurity software
Type	Private
Employees	84
Tagline	Secure wallet infrastructure platform for digital asset management.
Founded	2,020
Website	dfns.co
Latest Funding Round	Series A
Latest Funding Year	2,025
Latest Funding Amount	16,000,000
Latest Investors	Further Ventures

Dfns

About Dfns