About the role
Backend Security Engineer NEW RELEASE: Hold PYUSD and USDG to earn Fordefi Rewards NEW RELEASE: Earn with Fordefi Rewards Read Our Blog Sign up to our newsletter Platform Platform INTegrations Blockchains Exchanges Backup & Recovery Compliance Staking Products Defi Connectivity Transaction Clarity Policy Engine Browser Extension Exchange Connectivity Fordefi Launches Exchange Connectivity Read More Solutions Solutions Solutions Trading Operations Treasury Management Wallet as a Service Tokenization MPC Security Payments Trading Firms Asset Managers How to Execute a Swap in Fordefi — Step-by-Step Guide Read More Customers Customers customer stories View All View All Stories Bracket Clearstar Labs Fortuna Custody Stacks Foundation Backed deBridge Pantera Capital Neutral Trade Hyperwave Community Love At DeFiance Capital, we are delighted to welcome Fordefi’s cutting-edge wallet solution into our firm’s toolkit. Fordefi’s relentless focus on innovation, combined with their unwavering commitment to DeFi security and education, sets a new standard for excellence in the industry. It is clear that Fordefi’s team of experts has spent countless hours perfecting their product, and we are confident that their wallet will enable us to stay ahead of the curve in the fast-paced world of DeFi. We are proud to be associated with Fordefi, and we look forward to achieving great success together. Arthur Cheong , CIO & Founder at DeFiance Capital Read more As an investment fund focused on small-cap projects and special situations in decentralized finance, we understand that we can be a difficult client for MPC providers and custodians. We frequently find ourselves working at the edge of the Internet Financial System and need our providers to be safe and responsive while operating at the highest level. We found Fordefi after trying almost every alternative in the market and will recommend it to every liquid fund we know. Felipe Montealegre , Cofounder & CIO at Theia Read more Developers Developers developers Developers Documentation Guides Create Wallets at Scale Automate Signing Deploy Contracts Sponsor Gas Use Webhooks WaaS Developer Guide SDKS React Native Web JS Full API Reference View Docs Company Company company Blog About Careers recent news Fordefi and Chainalysis Partner to Bring AML Compliance to Institutional Digital-Asset Operations Read More Fordefi Launches In-App Swaps, Transforming Institutional Web3 Wallet Experience Read More Fordefi Adds Exchange Connectivity, Unifying Institutional Control Across CeFi and DeFi Balances Read More Join our newsletter! Subscribe Log in How it works Results FAQs Book a Demo Book a Demo Backend Security Engineer Full-time Hybrid Mid Tel Aviv, Israel Fordefi is the first institutional-grade wallet platform purpose-built for DeFi. Operating at the intersection of security and blockchain, our team of crypto custody and cybersecurity experts builds and operates the industry-leading MPC wallet used by nearly 300 institutional clients to deploy capital securely across multiple blockchains. Fordefi has recently been acquired by Paxos, a leading regulated digital asset infrastructure provider that issues stablecoins for global enterprises and powers brokerage and settlement solutions for major financial institutions and fintechs. Together with Paxos, we are scaling Fordefi's technology and accelerating our mission to provide institutions with secure and reliable access to digital assets. WHAT YOU WILL BE DOING Write production-grade, security-critical code that forms the foundation of Fordefi’s system—trusted to manage billions of dollars in digital assets. Develop and maintain key-management infrastructure, including features such as secure device provisioning, backup and recovery, and key-based device authentication. Analyze threat models and design features that provide rigorous security guarantees leveraging established cryptographic primitives and secure hardware enclaves. Build mechanisms for authentication, authorization, transaction integrity, and policy enforcement. WHAT WE ARE LOOKING FOR 3+ years of experience in software development (backend or low-level) 3+ years in a security-focused engineering role Hands-on experience with secure system design, including digital signatures and symmetric/asymmetric encryption Strong communication skills and a problem-solving mindset Curious, thorough, and a strong team player