Job Description:

A cryptographer develops and analyzes cryptographic algorithms and systems to secure information and communications in digital environments.

Job Category:
IT Industry

What you will do:

As a cryptographer, you will be:

  • Designing and creating cryptographic algorithms to secure data and communications
  • Implementing encryption and decryption techniques in software and hardware systems
  • Analysing code and systems to identify vulnerabilities and weaknesses in cryptographic implementations
  • Analysing existing cryptographic methods to identify potential vulnerabilities and weaknesses
  • Developing and implementing security protocols for secure communication
  • Designing systems for generating, distributing, and managing cryptographic keys
  • Staying updated with industry standards and contributing to the development of new security protocols
  • Conducting research to advance cryptographic techniques and enhance security measures
  • Identifying and addressing security risks in cryptographic systems
  • Providing expert advice on cryptographic best practices and security strategies
  • Working with security teams, software developers, and researchers to ensure robust security measures
  • Creating documentation and guidelines for implementing cryptographic methods
  • Educating stakeholders on cryptographic concepts and best practices


You will need:

  • knowledge in mathematics, computer science and information theory
  • knowledge of cryptography fundamentals, cryptography algorithms and cryptanalysis
  • knowledge of security protocols, network security and key management
  • knowledge of blockchain technology (optional)

As well as:

Illustration of employee looking at workspace

Entry Requirements:

To become a cryptographer, focusing on these GCSE subjects can be beneficial:

  1. Mathematics: Strong mathematical skills are crucial for understanding cryptographic algorithms and techniques.
  2. Computer Science: Learn programming concepts and gain familiarity with coding languages used in cryptography.
  3. Physics: Develop logical reasoning and problem-solving skills essential for cryptographic analysis.
  4. English: Effective communication skills are important for explaining complex concepts and findings.

These subjects provide a solid foundation for the analytical, technical, and communication skills required in the field of cryptography.

To become a cryptographer, you generally need to fulfill these qualifications and requirements:


A bachelor’s or master’s degree in computer science, mathematics, cryptography, or a related field is typically required.

Certifications (Optional)

Some professionals pursue certifications like Certified Information Systems Security Professional (CISSP) or Certified Cryptocurrency Investigator (CCI) to demonstrate expertise.

Working Hours and Environment:

The working hours of a cryptographer can vary, often following standard office hours with occasional flexibility for urgent matters, primarily office-based or remote work, focusing on research, analysis, implementation, and testing of cryptographic techniques, collaborating with teams, addressing vulnerabilities, and staying updated through continuous learning and conferences.

Career Path & Progression:

A typical cryptographer career path involves starting with an entry-level role, specializing in areas like encryption or protocol design, advancing to mid-level and senior positions, gaining expertise in algorithm design or cryptanalysis, contributing to research and publications, potentially moving into leadership, consulting, or academia, staying updated with emerging technologies, and considering late-career transitions such as advisory roles or further research.