Blockchain Security Specialist

Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction. Innovate with Tether Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services. Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state‑of‑the‑art, geo‑diverse facilities. Tether Data: Fueling breakthroughs in AI and peer‑to‑peer technology, we reduce infrastructure costs and enhance global communications with cutting‑edge solutions like KEET, our flagship app that redefines secure and private data sharing. Tether Education: Democratizing access to top‑tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity. Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways. Why Join Us? Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry. If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you. Are you ready to be part of the future? About the job We are seeking a Blockchain Security Specialist to join our Cybersecurity team. The candidate will work to ensure the security, integrity and reliability of our blockchain solutions and smart contracts. The ideal candidate has strong experience in the assessment and hardening of advanced blockchain solutions on EVM and non‑EVM chains. You will work with developers, product teams and security auditors to protect our blockchain products throughout their lifecycle. Responsibilities Conduct security audits on smart contracts and blockchain solutions. Identify on‑chain vulnerabilities and exploits. Collaborate with development teams to implement security best practices. Research and monitor new threats, attack vectors and vulnerabilities on blockchain technologies. Develop and implement security frameworks for detecting threats and vulnerabilities. Collaborate with external security auditors to identify and address security issues. Contribute to the internal knowledge base and train development teams on blockchain security principles. Qualifications 3+ years of experience in blockchain and smart contract security. Strong understanding of the principal blockchains, both EVM compatible (i.e., Ethereum, Arbitrum, Optimism, Polygon) and non EVM compatible (i.e., Solana, Cosmos, Polkadot, TON). Solidity, Rust (Solana, Polkadot) and FunC/Tolk (TON) proficiency. Strong experience with token standards and ecosystems. Deep knowledge of cross‑chain operations, token issuance security and Layer 2 solutions. Practical and theoretical knowledge of cryptography standards. Proven ability to execute code reviews both manually and through the usage of automated tools. Understanding of threat modeling, attack surface analysis and incident response processes. Preferred Qualifications Contributions to open‑source security tools or blockchain research. Prior experience with security auditing firms or major blockchain projects is a strong plus. Important information for candidates Recruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles: Apply only through our official channels. We do not use third‑party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: tether.recruitee.com/ Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website. Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms. Double‑check email addresses. All communication from us will come from emails ending in @tether.to or @tether.io. We will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately. When in doubt, feel free to reach out through our official website. #J-18808-Ljbffr