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Sr. Applied Cryptographer, DS-Crypto

Job ID: 2033486 | Services LLC


Job summary
The Devices and Services (D&S) Trust & Security team works to ensure that our devices and services are designed and implemented to the high standards required to maintain and enhance customer trust. Security and Privacy are paramount to maintaining trust and we need to continue to build trusted products, maintain and operate trusted environments, and advocate trust to customers and stakeholders. The team develops security automation for devices & services, performs penetration testing, and handles and tracks incident responses to resolution. The Trust team is responsible for enabling business growth and innovation while honoring data policies and controls that help protect customer trust. We are responsible for defining and executing on the security and privacy requirements across the entire organization.

DS-Crypto is looking for a senior cryptographer with cryptography implementation experience. Candidate is expected to be a primary contributor to the development and execution of a post-quantum transition strategy within DSTS with impacts Amazon wide. In addition, candidate will identify security and cryptography concerns in devices/web services/applications at all stages of development (from concept to in-production). Candidate will lead or participate in the development of guidance and training material regarding secure/proper use of cryptography.

Key job responsibilities
* Develop strategy, plans, and collateral to transition to PQ cryptographic algorithms
* Develop and productize software implementations for PQ algorithms capable of running on Amazon devices and low-cost MCUs
* Write collateral and training material to aid development teams in use of crypto and transition to PQ algorithms
* Perform trade-offs between cryptography, business-needs and security requirements to recommend best algorithm solutions and timings for transition taking into account software, hardware, backend services and market acceptance
* Participate in development of requirements and hardware/software implementations for performant implementations of new cryptographic algorithms
* Asses and resolve trouble tickets from development teams regarding use of crypto in design, implementation and/or production
* Develop tools to assess use of cryptography across DSTS teams

About the team
The Digital and Services Crypto Team (DS-Crypto) in DSTS sets strategic direction for use of cryptography in devices through research, development, training and consultation. Members of the DS-Crypto Team research advances in cryptographic standards and algorithms, serving as the experts for post-quantum cryptography, homomorphic encryption, lightweight cryptography, security protocols, and the implementation of these technologies. When new cryptographic technologies are needed and unavailable, DS-Crypto builds such capabilities to expand the technology shelf of available solutions. Team members provide the cryptographic expertise for DSTS development teams for consultative design exploration and security design reviews. Cryptography team members contribute to advancing DSTS’s level-of-knowledge by developing and leading training classes and adding to the cryptography and devices security body-of-knowledge increasing development team’s self-sufficiency.


* Bachelor’s degree in Computer Science, Computer Engineering or related field
* 6+ years of experience with security engineering


* Understanding of new and advancing cryptographic algorithms including post-quantum cryptography, homomorphic encryption, and light-weight symmetric cryptography
* Understanding of security proof systems and proving cryptographic algorithms and constructs are secure
* Understanding of hardening techniques for software and hardware-based implementations of cryptographic algorithms
* Cryptanalysis techniques
* Strong written and verbal communication skills
keyword: DSTS

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