We are looking for a Technical Customer Support Specialist to be the front line for our customers, helping them get the most out of Hypernative’s real-time threat detection platform.
Responsibilities
Serve as the first line of technical support, managing customer tickets and chats in a timely and professional manner.
Troubleshoot product, integration, and alerting issues, identify root causes, and escalate complex cases when needed.
Partner with the Customer Success and Engineering teams to track, reproduce, and resolve technical incidents.
Help customers integrate and configure Hypernative APIs, dashboards, and data feeds.
Maintain and improve support documentation, FAQs, and self-service resources.
This team specializes in conducting various types of penetration testing engagements (full end-to-end white-box and/or grey-box testing) against a variety of Citi owned or 3rd party SaaS applications leveraging blockchain, digital assets, and traditional frameworks.
Responsibilities
Plan, scope, and execute comprehensive penetration tests against blockchain networks, smart contracts, decentralized finance (DeFi) protocols, and digital asset custody systems.
Perform manual and automated source code reviews of smart contracts written in Solidity, Rust, Go, or Vyper to identify logic flaws, reentrancy, front-running, flash loan vulnerabilities, and integer overflows.
Act as a subject matter expert in offensive information security performing dynamic and manual security assessments on web technologies such as APIs, JavaScript Frameworks, Artificial Intelligence, and Distributed Ledger Technologies.
Drive remediation by outlining a defense-in-depth approach to business stakeholders and providing strategic solutions to developers on effective preventive and detective security controls.
Have strong technical writing and presentation skills to report and articulate the vulnerability assessment results to any audience.
A visionary leadership role focused on process improvement within the Experience & Retail team, integrating technologies like blockchain, smart contracts, and AI to modernize workflows and drive efficiency.
Responsibilities
Lead the design and implementation of emerging technologies to include blockchain and AI-powered automation solutions for retail operations
Act as liaison and collaborate with various lines of business, including EPMO, Digital & Transformation, and Retail Operations & Support
Coordinate testing and implementation of branch technology and compliance
Act as liaison between the team and internal/external partners to ensure successful deployment of system upgrades and enhancements
Participar en un proyecto tecnológico dentro del sector bancario, trabajando con activos digitales, blockchain e Inteligencia Artificial aplicada al desarrollo de software.
Responsibilities
Diseño, desarrollo y evolución de soluciones digitales end-to-end
Lead offensive security penetration testing for blockchain, digital assets, and smart contract environments at Citi, ensuring enterprise-scale security across cloud and AI-driven applications.
Responsibilities
Plan, scope, and execute comprehensive penetration tests against blockchain networks, smart contracts, decentralized finance protocols, and digital asset custody systems.
Perform manual and automated source code reviews of smart contracts written in Solidity, Rust, Go, or Vyper to identify logic flaws, reentrancy, front-running, flash loan vulnerabilities, and integer overflows.
Act as a subject matter expert in offensive information security performing dynamic and manual security assessments on web technologies such as APIs, JavaScript Frameworks, Artificial Intelligence, and Distributed Ledger Technologies.
Drive remediation by outlining a defense-in-depth approach to business stakeholders and providing strategic solutions to developers on effective preventive and detective security controls.
Have strong technical writing and presentation skills to report and articulate the vulnerability assessment results to any audience.
Requirements
Master's Degree or PhD with 3+ years of professional or research experience in blockchain and related technical areas
Bachelor's Degree with 5+ years of relevant professional experience in blockchain and related technical areas
Experienced principal blockchain engineer with payment and exchange building experience
Buscamos incorporar un/a Software Engineer Full Stack con experiencia sólida en Java/Spring Boot y Angular para participar en un proyecto tecnológico dentro del sector bancario trabajando con activos digitales, blockchain e IA.
Compensation
Contrato indefinido: Desde el primer día, con opción de 12 o 14 pagas.
Responsibilities
Diseño, desarrollo y evolución de soluciones digitales end-to-end
The project focuses on cryptocurrency and digital asset products for a UK-based client, covering trading, custody, tokenization, and digital asset investment solutions.
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Software Engineer Full Stack | Java + Angular | Blockchain & IA | Híbridoknowmad mood · Madrid, Spain