Senior Security Engineer

About Paradex

Paradex isn’t just another decentralized exchange; it’s the Everything Store for Finance. We’ve combined three powerful financial primitives-Exchange, Asset Management, and Borrow/Lend-all seamlessly composable and accessible through one unified account that uses your entire portfolio as collateral, including spot and derivative assets. Trade 250+ markets on a super exchange with zero fees, better-than-CEX liquidity, and institutional-grade privacy, all built on a blazingly fast blockchain.

Backed by top-tier investors and incubated by Paradigm, we’re scaling fast and building a team of mission-driven engineers to redefine what’s possible in decentralized finance. We have no product managers, no managers, no 1:1s at Paradex. No bullshit. Just code. You’ll work directly with our CEO and a small, elite team of builders in the trenches every day, pushing the limits of performance and UX.

Fair warning: this is not an easy place to work. We will push you hard. But you’ll grow faster than you thought possible, and you’ll do some of the most meaningful, high-impact work of your life. You’ll own what you ship end to end, tackle real technical challenges (not just UX tweaks), and help shape the future of decentralized finance. Join us on the frontline

Quick Facts

• $200+ Billion Lifetime Volume

• $1.2+ BiIlion Average Daily Volume

• $200+ Million Total Value Locked

• Paradex is committed to building transparently in public key platform stats

Your Mission

As a vital member of our security team, you'll lead complex security initiatives across Paradex, serving as technical authority on security architecture and best practices. You'll architect robust security systems that protect our blockchain infrastructure, smart contracts, and digital assets while driving security strategy through technical excellence and cross-functional collaboration. Your expertise will be crucial in embedding security into every layer of our platform and championing security culture across the organization.

What You'll Do

• Design & Secure: Architect and implement comprehensive security solutions for blockchain infrastructure, smart contracts, digital asset custody, cryptographic systems, and organizational security.

• Lead & Respond: Drive critical security initiatives and serve as technical authority during incident response and complex security assessments.

• Influence & Strategize: Shape company-wide security strategy by evaluating emerging threats, recommending tools and frameworks, and partnering with leadership to balance security with business objectives.

• Embed & Champion: Integrate security into product development through design reviews and threat modeling, elevating security knowledge and culture across the organization.

What You'll Bring

• Expertise: 7+ years in security engineering with proven ability to lead complex technical projects.

• Blockchain Security: Strong knowledge of blockchain technology, smart contract security, and common vulnerabilities (reentrancy, front-running, oracle manipulation).

• Technical: Proficiency in multiple programming languages (Go, Python, Solidity) and experience with security tools (SIEM, vulnerability scanners, static/dynamic analysis).

• Cloud & Infrastructure: Cloud security experience (AWS/GCP/Azure) with deep knowledge of IAM, network security, authentication systems, and securing distributed systems.

• Leadership: Excellent communication skills and strong judgment in risk assessment and security trade-offs, with ability to balance paranoia and pragmatism.

Exceptional Candidates Bring

• Crypto Native: Background at a cryptocurrency exchange, DeFi protocol, or blockchain infrastructure company with hands-on exposure to high-stakes security operations and incident response.

• Technical Depth: Experience with formal verification, symbolic execution, or advanced security testing methodologies, along with certifications such as OSCP, GIAC, or equivalent.

• Security Leadership: Contributions to open-source security projects, security research publications, or a track record of discovering and responsibly disclosing vulnerabilities.

• Compliance: Experience with compliance frameworks (SOC 2) and securing systems in regulated environments.

• Security Mindset: Deep curiosity about emerging attack vectors and defensive techniques in crypto, with the ability to think like an attacker while building pragmatic defenses.

Your Perks & Benefits

• Competitive Pay: Top-tier compensation in the industry.

• Generous PTO: Unlimited vacation.

• Full Benefits: Comprehensive packages tailored by country.

• No manager 1:1s and no bullshit meetings