Principal Crypto Engineer (TS//SCI)

K2 Space

$160K — $245K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in electrical engineering, computer engineering, computer science, or related field
  • 5+ years of experience with cryptographic systems or secure communications
  • Experience with NSA Type-1 cryptographic equipment and certification processes
  • Familiarity with key management and COMSEC handling requirements
  • Proven experience in taking designs through certification to operational use
  • Strong systems-level thinking across hardware and software boundaries
  • Ability to navigate a fast-paced startup environment with competing priorities

Responsibilities

  • Own the architecture and design of Type-1 cryptographic integrations across all segments
  • Lead crypto designs from concept to operational use
  • Define COMSEC architecture for data protection including encryption strategies
  • Serve as primary technical interface with NSA and government authorities
  • Drive cryptographic certification efforts, preparing necessary documentation and evidence
  • Collaborate with cross-functional teams to integrate cryptographic functions
  • Identify and mitigate cryptographic risks during the design and production stages
  • Establish reusable cryptographic standards for efficient operations

Benefits

  • Comprehensive medical, dental, and vision coverage
  • Paid time off and parental leave
  • Life insurance
  • Equity in the company
  • Support for non-traditional career paths and flexible hiring approach
Full Job Description
The Role

As K2's Crypto Engineer, you will own the architecture and design of our Type-1 cryptographic integrations across the spacecraft and ground segment. You will carry these designs cradle-to-grave - from concept and trade studies, through implementation and integration, to NSA certification and accreditation, and into on-orbit operations. You'll define how K2's satellites protect command, telemetry, and mission data; partner with NSA, government customers, and certification authorities; and ensure our COMSEC architecture meets the bar for national-security missions while fitting the pace and scale of a high-volume satellite production line. This is a foundational role: you'll set the cryptographic standards the rest of the program builds against.

Responsibilities
  • Own the end-to-end architecture and design of Type-1 cryptographic integrations across the spacecraft, payload, and ground segment
  • Lead crypto designs from concept and trade studies through implementation, integration, certification, and on-orbit operations
  • Define COMSEC architecture for command, telemetry, and mission data protection, including encryption, key management, and key loading approaches
  • Serve as K2's primary technical interface to NSA, certification authorities, and government customers on cryptographic certification and accreditation
  • Drive the certification and accreditation effort, developing the artifacts, test evidence, and documentation required to achieve and maintain approval to operate
  • Partner with flight software, avionics, RF, ground, and security teams to integrate cryptographic functions into the broader system architecture
  • Support COMSEC handling, key management planning, and operational procedures for on-orbit fleet operations
  • Identify and mitigate cryptographic and supply-chain risks across design and production
  • Establish reusable cryptographic standards, interfaces, and processes that scale across K2's satellite production line

Qualifications
  • Bachelor's degree or higher in electrical engineering, computer engineering, computer science, or a related discipline
  • 5+ years of engineering experience with cryptographic systems, COMSEC, or secure communications
  • Direct experience with NSA Type-1 cryptographic equipment, integration, and certification processes
  • Working knowledge of key management, key loading, and COMSEC handling requirements
  • Experience taking a hardware or system design through certification and accreditation to operational use
  • Strong systems-level thinking with the ability to reason from first principles across hardware, software, and RF boundaries
  • Ability to work in a fast-paced, autonomously driven, and demanding startup atmosphere with competing priorities and aggressive schedules

Nice to Have
  • Experience with spacecraft, satellite, or other space-system cryptographic integrations
  • Familiarity with cryptographic modernization initiatives and current NSA-approved algorithms and equipment
  • Experience with RMF/ATO, JSIG, or other accreditation frameworks
  • Background in RF, link design, or secure command and telemetry systems
  • Experience supporting on-orbit or fielded operations

Additional Requirements
  • Ability to travel up to 25% of the time
  • Active Top Secret or Top Secret SCI clearance required; ability to obtain and maintain access to additional programs as needed
  • Ability to work irregular business hours to support critical project timelines or operations
  • This role requires access to information controlled under ITAR/EAR; applicants must be a U.S. Person as defined by applicable regulations

Compensation and Benefits
  • Base salary range for this role is $160,000 - $245,000 + equity in the company
  • Salary will be based on several factors including, but not limited to: knowledge and skills, education, and experience level
  • Comprehensive benefits package including paid time off, medical/dental/vision coverage, life insurance, paid parental leave, and many other perks


If you don't meet 100% of the preferred skills and experience, we encourage you to still apply! Building a spacecraft unlike any other requires a team unlike any other and non-traditional career twists and turns are encouraged!

If you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.

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