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Principal Software Engineer



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Software Engineering
Bengaluru, Karnataka, India
Posted on Wednesday, January 17, 2024


We’re a leading, global security authority that’s disrupting our own category. Our encryption is trusted by the major ecommerce brands, the world’s largest companies, the major cloud providers, entire country financial systems, entire internets of things and even down to little things like surgically embedded pacemakers. We help companies put trust—an abstract idea—to work. That’s digital trust for the real world.


Principal Software Engineer (Cryptography)


  • Develop software for cryptographic algorithms including both classical and post-quantum algorithms. This includes but is not limited to symmetric key and asymmetic key encryption and decryption, key exchanges, digital signature, hash and mac algorithms, and random number generation.
  • Development and Maintain security software for embedded platforms
  • Leading the development of new features from conceptualization to design and implementation
  • Responsible for analysis and troubleshooting of defects and coordinating refactor and design feature upgrade solutions
  • Take part in design reviews and generate and update detailed design documents
  • Contribute to innovation in the product through patent ideas
  • Researching customer issues, providing input and development to problems/issues
  • Estimate task lengths, development activities and meet schedules
  • Other duties as assigned


  • Master’s degree in computer science or in a related field of computer networking and security, from an accredited university or equivalent
  • 8+ years of industry work experience in the software development
  • Strong C language and multi-threaded programming skills
  • Experience with classical cryptography algorithm fundamentals and either experience with post-quantum cryptography fundamentals or a strong ability to implement complex mathematical algorithms from original research papers or RFCs.
  • Good technical writing and communication skills
  • In-depth knowledge of Data Structures & Algorithms
  • Development experience with Enterprise OSes (Linux, Windows, MacOS) and RTOS platforms (VxWorks, FreeRTOS, QNX) beneficial
  • Understanding of secure coding standards
  • Experience with object-oriented design, coding, and unit testing
  • Flexible and willing to learn/work on new technologies
  • Ability to work well in a team and good problem-solving skills


  • Mathematical knowledge of finite fields, elliptic curves, and lattices
  • Knowledge of PKI infrastructure
  • Knowledge of Network security protocol stack internals including TCP, UDP, SSL, SSH, IPsec and Wireless
  • Experience with Wireshark analyzer
  • Experience with Git, JIRA, IDEs (Eclipse, MS Visual Studio)
  • Embedded system software development experience

DigiCert is an Equal Opportunity employer and is committed to diversity in its workforce. In compliance with applicable federal and state laws, DigiCert prohibits discrimination on the basis of race or ethnicity, religion, color, national origin, sex, age, sexual orientation, gender identity/expression, veteran’s status, status as a qualified person with a disability, or genetic information. Individuals from historically underrepresented groups, such as minorities, women, qualified person with disabilities, and protected veterans are strongly encouraged to apply

This job is no longer accepting applications

See open jobs at DigiCert.