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Crypto Engineer

Hungary, Budapest · Job Posted March 04, 2026
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Job Description

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Join our Data Security Engineering Team now and be part of our dynamically growing Citi Technology Team in Budapest! Within Citi, the Global Data Security Engineering Team is focusing on designing, developing, testing and architecting Citi’s next generation cyber security and cryptography solutions across the globe. In this role you will be responsible to research, develop and certify security strategies, products, architectures, and best practices. You will also be responsible to define and influence key security strategy initiatives and deliver security solutions that will adhere to all enterprise security requirements with a potential to influence industry wide roadmaps.

Job Responsibility

  • Identify opportunities to automate and standardize information security controls and for the supported groups
  • Certifying Hardware Security Modules and Crypto applications within Citi and provide Engineering support
  • Create automated testing solution, review, and validate results and prioritize actions that resolve issues based on overall risk
  • Reduce risk by analysing the root cause of issues, their impact, and required corrective actions
  • Hold the ownership of multiple products and share the knowledge of the product with the teammates and help them to fully understand procedures, best practices, and standards

Requirements

  • 3-6 years of experience of experience on technology and information security
  • Deep knowledge of crypto techniques and algoritms
  • Solid skills in scripting languages (VB, Bash, PS)
  • Strong knowledge and experience of PKCS protocols, JCE and CSP/KSP
  • Work with and understand regulatory and risk management requirements
  • Strong security mindset
  • Any experiences with Hardware Security modules
  • Ability to define deadlines internally and externally and tracking them in multiple projects
  • University / College degree in any STEM area or equivalent industry/technology knowledge

Nice to have

Programming skills in most common languages (e.g., C++, C#, Python, Perl, Java) is a plus

What we offer

  • Cafeteria Program
  • Home Office Allowance (for colleagues working in hybrid work models)
  • Paid Parental Leave Program (maternity and paternity leave)
  • Private Medical Care Program and onsite medical rooms at our offices
  • Pension Plan Contribution to voluntary pension fund
  • Group Life Insurance
  • Employee Assistance Program
  • Access to a wide variety of learning and development programs, online course libraries and upskilling platforms, such as Udemy and Degreed
  • Flexible work arrangements to support you in managing work - life balance
  • Career progression opportunities across geographies and business lines
  • Socially active employee communities with diverse networking opportunities

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