Using proven crypto and blockchain technology honed over a decade, Ripple’s enterprise-grade solutions are faster, more transparent, and more cost-effective than traditional financial services. Our customers use these solutions to source crypto, facilitate instant payments, empower their treasury, engage new audiences, lower capital requirements, and drive new revenue.Founded in 2012, Ripple's vision is to enable a world where value moves as seamlessly as information flows today—an Internet of Value. Ripple is the only enterprise blockchain company today with products in commercial use. Ripple’s global payments network includes over 300 customers across 40+ countries and  six continents.

<h3>Cryptography Research Intern – RippleX</h3> Join the RippleX Research team to drive innovation in blockchain cryptography and advance the XRPL ecosystem. RippleX empowers developers by providing blockchain infrastructure, fostering a thriving community, and driving digital asset adoption. <h4>What You’ll Do:</h4><ul><li>Research next-gen cryptographic algorithms for blockchain advancements</li><li>Collaborate with engineers to translate research into real-world solutions</li><li>Develop technical specifications, academic papers, and proof-of-concept implementations</li><li>Support implementation of cryptographic research in production systems</li><li>Provide insights to leadership for strategic alignment</li><li>Represent Ripple in academic, industry, and developer communities</li><li>Work cross-functionally with engineering, legal, compliance, and product teams</li></ul> <h4>What You’ll Bring:</h4><ul><li>Expertise in blockchain cryptography, elliptic curve &amp; pairing-based cryptography, and multi-party computation</li><li>Knowledge of privacy-enhancing technologies (homomorphic encryption, zero-knowledge proofs, differential privacy)</li><li>Proficiency in Python, C/C++, Rust, or Go and cryptographic libraries</li><li>Passion for decentralized technologies and continuous learning</li><li>Strong communication skills and attention to detail</li><li>PhD candidate in Cryptography, Computer Science, or related field</li></ul> Bonus: Knowledge of XRPL and experience in crypto/blockchain. This is your opportunity to contribute to cutting-edge cryptographic research in a dynamic blockchain ecosystem.

Cryptography Research Engineer Intern-UK

Barclays is a British universal bank. Our vision is to be the UK-centered leader in global finance. We are a diversified bank with comprehensive UK consumer, corporate and wealth and private banking franchises, a leading investment bank and a strong, specialist US consumer bank. Through these five divisions, we are working together for a better financial future for our customers, clients and communities. With over 325 years of history and expertise in banking, Barclays operates in over 40 countries and employs approximately 83,500 people. Barclays moves, lends, invests and protects money for customers and clients worldwide. Barclays is a trading name of Barclays Bank PLC and its subsidiaries. Barclays Bank PLC is registered in England and is authorized by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Registered in England. Registered No. 1026167. Registered office: 1 Churchill Place, London E14 5HP.

<h3>Cryptography Analyst – Barclays</h3>Join Barclays as a Cryptography Analyst, where you’ll strengthen cryptographic infrastructure by designing, implementing, and maintaining PKI &amp; HSM solutions to support encryption, authentication, and digital signing across global operations. You’ll also help embed resilience for evolving security needs, including the post-quantum landscape. <h4>Key Skills &amp; Experience:</h4><ul><li>Certificate Management (Venafi, Digicert, Sectigo)</li><li>HSMs (Thales, Entrust) for secure key storage</li><li>OS Expertise (Linux/Unix, Windows) for cryptographic management</li><li>PKI Management – Digital certificates &amp; authorities</li><li>Incident Response – Handling cryptographic breaches</li><li>Compliance Knowledge – NIST, FIPS, ISO27001/27002</li></ul> <h4>Key Responsibilities:</h4><ul><li>Collaborate with stakeholders to identify cryptographic needs</li><li>Conduct security assessments &amp; penetration testing</li><li>Implement &amp; monitor cryptographic solutions aligned with standards</li><li>Develop training &amp; technical documentation</li><li>Manage cryptography service operations globally</li><li>Advocate security controls &amp; best practices</li><li>Communicate complex ideas to technical &amp; non-technical audiences</li></ul> <h4>Expectations:</h4><ul><li>Influence decision-making &amp; risk mitigation</li><li>Ensure compliance with policies &amp; industry standards</li><li>Resolve issues using technical expertise</li><li>Act as a key contact for internal &amp; external stakeholders</li></ul> This role is based in Knutsford and requires 24/7 global on-call support. Join us in shaping the future of cryptographic security at Barclays.

Cryptography Analyst

BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, a global defense, security, and aerospace company. Headquartered in Arlington, VA, we specialize in advanced electronic systems, cyber operations, intelligence analysis, combat vehicles, naval weapons, and modernization services.Our mission is to protect those who protect us, foster a strong community, and support the growth of our team. We encourage open discussion on our social media but require civil discourse. Comments must:<ul><li>Avoid partisan political promotion.</li><li>Protect confidential and proprietary information.</li><li>Respect intellectual property rights.</li></ul> We will remove comments containing:<ul><li>Profanity, threats, or violence.</li><li>Illegal activity or misinformation.</li><li>Personal attacks or off-topic content.</li></ul>

<h3>Cryptocurrency Analyst – BAE Systems</h3> Location: Remote | Salary Range: $126,610 - $215,270 <h4>About BAE Systems</h4>BAE Systems is a leading defense, security, and aerospace company dedicated to protecting lives and advancing technology. Our Intelligence &amp; Security division delivers cutting-edge solutions in cybersecurity, intelligence analysis, and financial exploitation to support national security. <h4>Job Overview</h4>We are seeking a Cryptocurrency Analyst with expertise in financial investigations, blockchain analytics, or technical data analysis. The role involves researching digital assets, identifying illicit financial activities, and developing analytical tools to improve operational efficiency. <h4>Key Responsibilities</h4><ul><li>Conduct in-depth analysis of cryptocurrency transactions and blockchain networks.</li><li>Identify financial crime risks, including money laundering and sanctions evasion.</li><li>Develop tools and processes to enhance operational effectiveness.</li><li>Uncover intelligence from large datasets and blockchain activity.</li><li>Collaborate with financial, intelligence, and cybersecurity teams.</li></ul> <h4>Preferred Qualifications</h4>Candidates should have expertise in one or more of the following:<h5>Technical Expertise:</h5><ul><li>Experience with Python, scripting, regex, and pattern matching.</li><li>Proficiency in blockchain explorers (Chainalysis Reactor, TRM, CipherTrace).</li><li>Knowledge of blockchain protocols, smart contracts, and cryptographic principles.</li></ul><h5>Financial Investigations:</h5><ul><li>Understanding of AML regulations (FATF, KYC, forensic accounting).</li><li>Knowledge of SWIFT, ACH, and payment service providers (PayPal, Payoneer).</li><li>Experience tracing cryptocurrency laundering methods (mixers, peel chains, darknet markets).</li></ul><h5>Blockchain &amp; Cryptocurrency:</h5><ul><li>Understanding of wallet types (custodial, non-custodial, hardware, software).</li><li>Knowledge of crypto exchanges (centralized vs. decentralized, OTC trading).</li><li>Familiarity with proof-of-work vs. proof-of-stake mining models.</li></ul> <h4>Benefits</h4><ul><li>Competitive salary with performance incentives.</li><li>Comprehensive health, dental, vision, and retirement benefits.</li><li>Paid time off, parental leave, and military leave.</li><li>Employee assistance programs and professional development opportunities.</li></ul> Join BAE Systems and help defend national security through cutting-edge cryptocurrency analysis. Apply now at <a href="https://jobs.baesystems.com" rel="noopener noreferrer" target="_blank">jobs.baesystems.com</a>.

Cryptocurrency Analyst

Marqeta is a leading fintech company specializing in modern card issuing and payment processing, founded in 2010. It offers an open API platform that enables businesses to create and manage customized payment solutions. By providing innovative tools for digital banking, on-demand services, and global e-commerce, Marqeta powers major clients such as Square, DoorDash, and Klarna.The company's solutions revolutionize payment processes for businesses and consumers, helping them scale with agility and speed. For those looking to join the team, Marqeta careers offer opportunities to work in a fast-paced, innovative environment. As a public company, Marqeta stock is actively traded, and investors can track the latest updates through the Marqeta investor relations platform.

Staff Security Engineer - Cryptography &amp; Key Management-&nbsp;Marqeta Join Marqeta’s team to shape and implement cutting-edge security strategies protecting sensitive data across our platforms. Key Responsibilities:<ul><li>Lead data security architecture and strategies.</li><li>Define encryption and secrets management standards.</li><li>Deploy and manage cloud-based Key Management Services (KMS) and HSMs.</li><li>Maintain data security tooling (DSPM, DLP).</li><li>Ensure compliance with security standards like PCI-DSS and FIPS.</li></ul> Requirements:<ul><li>8+ years of experience in data security (encryption, tokenization, PKI).</li><li>4+ years working with HSMs, cloud KMSs, encryption algorithms.</li><li>3+ years with cloud computing and Infrastructure as Code (Terraform).</li><li>Experience with PCI, NIST, GDPR regulations.</li></ul> Nice to Have:<ul><li>Experience with Thales payShield HSM, AWS KMS, Google Tink.</li><li>Familiarity with Kubernetes and IaC tools.</li></ul> Compensation:<ul><li>National: $167,100 - $208,900</li><li>Premium: $179,800 - $224,700</li><li>Premium Plus: $195,400 - $244,200</li></ul> Benefits:<ul><li>Flexible work environment (remote-first).</li><li>Health insurance, stock options, retirement savings, and more.</li></ul>

Staff Security Engineer - Cryptography & Key Management

Mastercard drives economic growth and empowers individuals across more than 200 countries and territories. In collaboration with our customers, we are working to build a sustainable economy where everyone has the opportunity to thrive. We offer a diverse range of digital payment solutions that make transactions secure, simple, smart, and accessible. Our innovative technology, partnerships, and global networks come together to deliver a unique array of products and services that help individuals, businesses, and governments reach their full potential.

Our PurposeMastercard powers economies and empowers people across more than 200 countries and territories. Together with our customers, we are building a sustainable economy where everyone can thrive. We offer a variety of digital payment solutions that make transactions secure, simple, smart, and accessible. By combining our technology, innovation, partnerships, and global networks, we deliver unique products and services that help individuals, businesses, and governments unlock their full potential. Title:Manager, Cryptographer Overview:Mastercard is a leading global technology company in the payments industry, providing innovative payment solutions and services that connect individuals and businesses worldwide. Our success is driven by our people, technology, data, and brand. We are committed to fostering an inclusive, world-class culture that empowers our employees to make a lasting impact on the global community. Join us and discover how you can start something priceless.The EMV &amp; Digital Devices Team is seeking a cryptographer to join the security team responsible for designing and architecting cryptographic solutions for Mastercard’s innovative payment technologies. The ideal candidate will be a motivated, intellectually curious, and analytical individual with a passion for creating impactful payment solutions on a global scale. Roles and Responsibilities:<ul><li>Collaborate in a small team responsible for the cryptography and security of Mastercard chip card applications, including support for mobile and cloud technologies.</li><li>Perform ongoing risk analysis for chip card payments on a global scale, balancing security and ease-of-use while considering evolving technical and regulatory factors.</li><li>Design and maintain security requirements and solutions to mitigate payment fraud risks, whether actual or anticipated, ensuring adaptability to a global ecosystem with diverse payment methods and regional regulations.</li><li>Work as part of a broader chip team to develop payment solutions through their full lifecycle—from ideation to proof-of-concept development, security evaluation, and commercialization.</li><li>Deliver specifications and documentation to help customers and partners develop and deploy best-in-class payment solutions.</li><li>Act as an ambassador for Mastercard’s payment solutions, providing insights to internal teams and engaging with industry experts.</li><li>Represent Mastercard in global discussions on payment security, particularly through organizations like EMVCo, contributing to the international standardization of cryptography for payments.</li></ul> All About You:<ul><li>A university degree in Mathematics or Computer Science, with a preference for MSc or PhD qualifications.</li><li>Proficiency in research-level cryptography, including RSA, ECC, and PQC.</li><li>A strong understanding of random number generation, probability theory, quantum physics, and quantum computing.</li><li>Programming experience, ideally with smart card or HSM cryptography, and exposure to quality engineering processes.</li><li>Knowledge or experience with network infrastructure and technology is a plus.</li><li>Fluent in English, both spoken and written, with excellent presentation and communication skills, including experience collaborating with business stakeholders.</li><li>Strong interpersonal skills, able to work with diverse cross-functional teams and external partners in a global setting.</li><li>Comfortable working independently while collaborating with a global team to solve technical challenges in a fast-paced, evolving industry.</li><li>Willing to travel internationally as required.</li></ul> Corporate Security Responsibility:Every individual working for or on behalf of Mastercard is responsible for maintaining information security, and must:<ul><li>Adhere to Mastercard’s security policies and practices.</li><li>Ensure the confidentiality and integrity of all accessed information.</li><li>Report any suspected information security violations or breaches.</li><li>Complete all mandatory security training as per Mastercard’s guidelines.</li></ul>

Cryptography Research Engineer Intern-UK

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