Mid-Level Embedded Software Engineer (Clearance Required)

Ultra I&C
Tampa, Florida, United StatesFull-timePosted Sep 14, 2026

About the role

Company: Ultra Intelligence & Communications

Mission Solutions

Powering Decision

Join the team redefining defense technology. From engineering systems that save lives to leading programs that change the battlefield—find your place in the future of defense.

Mission Solutions

By joining our Mission Solutions business, you will be a member of a team dedicated to providing innovative solutions that streamline the preparation and execution of intricate, mission-critical operations. We focus on enhancing situational awareness, tactical command and control, and seamless video data exchange capabilities within a dynamic, multi-domain environment.

Job Description

Ultra ProLogic is expanding its encryption business and seeking an Embedded Software Engineer to help architect, implement, and certify high-assurance cryptographic systems used by the U.S. Department of Defense, NATO, and allied partners.

This role goes beyond traditional embedded development. You will work on security-critical software and firmware that must meet NSA High Assurance (HA) certification requirements, contributing directly to cryptographic information assurance architectures, certification artifacts, and fielded systems protecting real-world tactical and strategic networks.

If you are motivated by deep technical challenges—secure embedded design, Rust adoption in constrained environments, and building systems that withstand formal certification scrutiny—this role offers rare and meaningful work.

What You’ll Work On

High-assurance cryptographic and key management systems supporting secure communications, remote rekey, and lifecycle management

Embedded software and firmware operating within defined crypto, INFOSEC, and High Assurance boundaries

Architecture and implementation of cryptographic information assurance (IA) software and systems

Modernization of legacy C baselines and architecting Rust-based embedded solutions for security- and safety-critical environments

Systems that undergo formal NSA High Assurance certification, from requirements through fielding and sustainment

Role Responsibilities

Design, develop, and maintain embedded software primarily in C and Rust for cryptographic and security-critical platforms

Architect cryptographic information assurance software and systems, including definition of security boundaries, trusted services, and separation of crypto and non-crypto functions

Perform trade studies and embedded architecture design, with emphasis on memory-safe designs and C-to-Rust transitions

Actively support the NSA High Assurance certification process, including:

Requirements decomposition and traceability

Security architecture definition and documentation

Development of certification artifacts and evidence

Participation in technical reviews and certification milestones

Develop and maintain formal engineering documentation:

Software & Hardware Requirements (SHRS, IRS)

Interface Control Documents (ICDs)

Software/Hardware Design Descriptions (SHDD)

Develop and execute unit testing, integration, and acceptance testing, including hardware-in-the-loop and security-relevant test cases

Manage configuration control for software development items in certified baselines

Collaborate closely with systems, hardware, security, and test engineers in a high-performance, mission-driven team

Identify and implement process, tooling, and automation improvements to support secure development and certification efficiency

Periodic travel (~5%) for customer interaction, test events, or off-site integration activities

Required Qualifications

Active U.S. Government Secret Security Clearance (U.S. citizenship required)

Bachelor’s degree in computer science, computer engineering, software engineering, or equivalent experience

5+ years of embedded software development experience in C and/or Rust

Experience with:

Low-level embedded development and debugging

ARM-based processors and SoC platforms

Firmware and hardware/software integration

Strong understanding of memory management, concurrency, and deterministic embedded behavior

Preferred / Differentiating Experience

8+ years of embedded or firmware development experience

Experience with Rust in constrained embedded environments (no-std, heapless, hardware abstraction layer (HAL))

Direct experience with NSA High Assurance certification, RMF, or similar DoD security frameworks

Familiarity with cryptographic system design, key management, and secure boot/trust architectures

Experience with:

openOCD, gdb, JTAG/SWD debugging

AMD Zynq UltraScale+ MPSoC (e.g., Xilinx ZCU102/104 Evaluation Kit or similar)

Experience working in waterfall or agile development methodology-based projects

Strong systems-thinking mindset with the ability to assess technical risk and security impact

Clear communicator who thrives in collaborative, technically rigorous teams

Why Ultra ProLogic

Work on fielded, certified cryptographic systems and research & development projects

Direct exposure to and participation in NSA High Assurance certification

Opportunity to influence system architecture, not just implementation

Hands-on role in modernizing high-assurance systems with Rust

Long-term programs, stable funding, and deeply technical challenges

Backed by Ultra Intelligence & Communications, with the agility of a focused encryption business

#IC

Notice

Due to the nature of the programs we deliver for our customers, candidates may need to obtain the relevant security clearance or handle export-controlled material as defined by the role's requirements.

Our Benefits

Every employee is critical to our success, and as such, we offer a range of flexible employee benefits, including:

Annual Bonus - Annual Bonus – Performance Related

Competitive Paid Time Off (PTO) package plus 11 company holidays

Early finish on Friday

401K w/ company match

Medical/Dental/Vision Benefits

Student Loan Assistance Program

Array of voluntary benefit offerings

Ultra I&C is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or other legally protected state or federal classes.

We provide affirmative action in employment for qualified individuals with disabilities and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. If you need an accommodation in any part of the application process, email careers@ultra-ic.com."

Responsibilities

  • Design, develop, and maintain embedded software primarily in C and Rust for cryptographic and security-critical platforms
  • Architect cryptographic information assurance software and systems
  • Perform trade studies and embedded architecture design
  • Support the NSA High Assurance certification process
  • Develop and maintain formal engineering documentation
  • Develop and execute unit testing, integration, and acceptance testing
  • Manage configuration control for software development items
  • Collaborate closely with systems, hardware, security, and test engineers

Qualifications

  • Active U.S. Government Secret Security Clearance
  • Bachelor’s degree in computer science, computer engineering, software engineering, or equivalent experience
  • 5+ years of embedded software development experience in C and/or Rust
  • Experience with low-level embedded development and debugging
  • Strong understanding of memory management, concurrency, and deterministic embedded behavior

Benefits

  • Annual Bonus – Performance Related
  • Competitive Paid Time Off (PTO) package plus 11 company holidays
  • Early finish on Friday
  • 401K w/ company match
  • Medical/Dental/Vision Benefits
  • Student Loan Assistance Program
  • Array of voluntary benefit offerings

Skills mentioned

CRustEmbedded SystemsEmbedded Software DevelopmentFirmware DevelopmentDebuggingConcurrencyUnit TestingIntegration TestingCybersecurity

About Ultra I&C

Ultra I&C is powering decision speed across the multidomain battlespace with mission optimization, tactical communications and crypto solutions. We secure and make sense of data across all domains, delivering real-time, mission-ready intelligence that gives operators at the edge the clarity to act and the speed to win. For decades, global defense forces and allied partners have relied on Ultra I&C to outpace threats and cut through complexity. Headquartered in Austin, Texas, we deliver battle-proven technology purpose-built for decision advantage in contested, high-threat environments.

Defense and Space Manufacturing201-500 employeesAustin, Texas