Senior Software Engineer - Secure Communications

RTX; Fort Wayne (IN); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

3 weeks vacation

401(k) plan with employer matching

Relocation assistance

Tuition reimbursement

Job summary

RTX, the world’s largest aerospace and defense company, invites a Senior Software Engineer to join the Crypto team onsite in Fort Wayne, IN. You will design and develop secure embedded software and cryptographic capabilities for U.S. military communications, collaborating with hardware, FPGA and software teams.

Proficiency in C++ or Rust and embedded Linux is essential; crypto experience is preferred. Active clearance and U.S. citizenship are required.

Qualifications

• Degree in science, technology, engineering or mathematics with 5+ years of relevant experience, or an advanced degree with 3+ years.
• Active, transferable U.S. government security clearance required before start.
• U.S. citizenship is required to obtain security clearance.

Responsibilities

• Lead embedded software development and integration of cryptographic solutions.
• Design secure, multi-threaded embedded C++ or Rust codebases.
• Collaborate across hardware, FPGA, and software teams to ensure integration.
• Mentor teammates and drive verification and certification support.
• Enhance security and reliability of critical communications infrastructure.

Skills

C++

Rust

Python

Embedded Linux

Security clearance

Education

STEM degree

Advanced degree

Tools

C#

Java

Ada

VHDL

Job description

Date Posted:

2026-07-20

Country:

United States of America

Location:

US-IN-FT WAYNE-150A ~ 1010 Production Rd ~ BLDG 150A

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

Secret - Current

Security Clearance Status:

Active and existing security clearance required on day 1

Job Description

At RTX, the world’s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

Our Crypto team in the Software Technologies directorate createsadvanced embedded cryptographic capabilities for U.S. military communications products.Weregularly workwith the NSA to ensure our military communications areresilient andsecure.Throughcross-functional collaboration with hardware, FPGA, and software teams, our team ensures the seamless integration of our technology into military communication products.

As a Senior Software Engineer joining to join our team, where you will play a key role in the design, development, integration, and verification of oursecureembeddedsoftware.This includesfeatures such asdevice management,reprogramming, keymanagementandencryption algorithms.Proficiencyin C++or Rust, Python, and embedded Linux is crucial for rapid integration into our projects. While experience with secure systems, secure software development, or cryptographic applications is preferred, it is notrequired. The ideal candidate will consistently deliver superior results, ensuring project milestones are met while fostering a positive work environment. You should thrive in collaborative team settings, both in-person and through technology, andpossessdemonstratedexpertisein integrating system hardware and software components.

This position is onsite in Fort Wayne Indiana.

Sign-on Bonus Eligible

What YOU will do:

• Lead Embedded Software Development and Integration:Design and developadvanced embedded cryptographic solutions and communication products, ensuring alignment with strategicobjectives.
• DesignScalableSoftware Architectures:Lead the development of secure, multi-threaded embedded C++ or Rust codebases, advancing software architecture through innovative solutions.
• Drive Project Execution:Collaborate with cross-functional project teams to define requirements, implement software, and oversee test case development, verification test execution, and certification support.
• Mentor and Empower:Provide guidance and mentorship to fellow software developers, enhancing both technicalproficiencyand process optimization while cultivating a culture of collaboration and continuous improvement.
• Enhance Security and Reliability:Play a pivotal role in shaping products that significantly bolster the security and reliability of critical communications infrastructure.

What You Will Learn:

• Gain hands-on experience in designing, developing, integrating, and verifying embedded encryption algorithms.
• Enhanceproficiencyin C++, Python, and embedded Linux through practical application in real-world projects.
• Explore secure systems and software development principles within a supportive team environment.
• Develop insights into cryptographic applications, fostering a deeper understanding of their implementation and implications.
• Participate in Agile methodologies, refining your ability to adapt and deliver in dynamic project settings.

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
• Active and transferable U.S. government issued security clearance - current, isrequiredprior to start date. U.S. citizenship isrequired, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer:

• Crypto system requirements capture, design formulation,algorithmsand implementation
• Verification and validation of crypto system functional and security requirements
• Development of artifacts to support certification of crypto system and components
• Experience with Information Assurance and/or Cybersecurity industry standards of practice
• Experience as a technical or projectleadto ensure that project execution is successful
• Ideal candidates will have experience with software development using a high-level programming language (C++, C#, Java, Rust, Ada, VHDL) as well as hardware-software integration in real-time embedded systems.

What We Offer:

Some of our competitive benefits package includes:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance,critical illnessinsurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• Eligible for relocation
• And more!

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

_ As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. _

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.