Senior/Principal Mission Software Engineer

Hermeus
Atlanta, GA
On-site

Who this role is best for

Geared toward candidates with aerospace or defense domain experience comfortable with designing and validating distributed, hardware-connected systems.

Best fit for

  • Candidates with aerospace or defense domain experience and a background in real-time embedded systems
    — “Experience with distributed, real-time, embedded, robotic, aerospace, or other hardware-connected systems”
  • Individuals with a history of defining scalable software architectures and protocols
    — “Define scalable architectures, interfaces, APIs, protocols, and message schemas”
  • Candidates who have led integration of third-party systems in complex environments
    — “Experience integrating third-party sensors, payloads, autonomy services, radios, or mission subsystems”
  • Candidates with a track record of technical decision-making in ambiguous environments
    — “Ability to define architectures, interfaces, protocols, and system boundaries in ambiguous environments”

Things to consider

  • U.S. citizenship is a strict requirement, limiting eligibility to U.S. citizens only
    — “this position is limited to U.S. citizens”
  • The role demands a high level of technical leadership, not just individual contributor skills
    — “hands-on technical leadership role with the opportunity to define foundational architecture”

How to stand out

  • Highlight experience with C++17 or newer and performance-oriented development in your resume
    — “Advanced proficiency with modern C++, including C++17 or newer”
  • Emphasize your ability to lead integration of autonomy services and hardware systems
    — “Integrate autonomy services, sensors, payloads, radios, tactical datalinks, and third-party systems”
  • Demonstrate your experience with simulation and testing environments like SIL or HIL
    — “Build and improve simulation, software-in-the-loop, hardware-in-the-loop, and system-integration environments”
  • Position yourself as a mentor who has established strong software development practices
    — “Mentor engineers and establish strong software architecture and development practices”
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · Company

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • architecting and building critical portions of the Mission Management System
  • defining scalable architectures
  • integrating autonomy services and third-party systems
  • leading design reviews and code reviews
Typical background
software engineeringaerospace engineeringdefense aviation

Skills & requirements

Required

C++Software ArchitectureDistributed SystemsReal-time SystemsNetwork ProgrammingEmbedded SystemsAutonomy ServicesSimulationSystem IntegrationTechnical Leadership

Preferred

AerospaceDefense AviationRapid Iterative Prototyping

Stack & domain

C++Command And ControlTelemetryMission WorkflowsSubsystem CoordinationDistributed SystemsReal-time SystemsEmbedded SystemsAerospaceNetwork ProgrammingSimulationSoftware-in-the-loopHardware-in-the-loopSystem-integrationDesign ReviewsCode ReviewsTechnical Trade StudiesIntegration ActivitiesTroubleshootingTechnical LeadershipArchitecturePerformanceReliabilityLatencyFault ToleranceExtensibilityDiagnosing Complex IssuesPartnering With TeamsMentoring EngineersEstablishing Strong Software Architecture And Development PracticesDefense AviationHigh-speed Systems

About the role

Original posting from Hermeus via Lever

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About The Role:

The Mission Systems Engineering team develops the Mission Management System—the software platform connecting mission subsystems, autonomy services, operator interfaces, communications links, and telemetry across Hermeus aircraft and ground systems. 

As a Senior/Principal Mission Software Engineer, you will architect, build, integrate, and validate critical portions of this platform. You will work across software, avionics, communications, autonomy, simulation, and flight operations to solve complex problems in distributed, hardware-connected environments. 

This is a hands-on technical leadership role with the opportunity to define foundational architecture and directly influence how Hermeus aircraft are commanded, monitored, tested, and expanded with new mission capabilities. 

Responsibilities::

Own major Mission Management System capabilities from architecture through integration, testing, and operational use 

Design and develop high-performance C++ software for command and control, telemetry, mission workflows, and subsystem coordination 

Define scalable architectures, interfaces, APIs, protocols, and message schemas 

Integrate autonomy services, sensors, payloads, radios, tactical datalinks, and third-party systems 

Make technical decisions involving performance, reliability, latency, fault tolerance, and extensibility 

Diagnose complex issues across distributed software, networks, embedded hardware, avionics, and communications systems 

Partner with systems, avionics, autonomy, networking, flight-test, and operations teams 

Build and improve simulation, software-in-the-loop, hardware-in-the-loop, and system-integration environments 

Lead design reviews, code reviews, technical trade studies, and integration activities 

Identify technical risks and drive solutions in environments where requirements are still evolving 

Mentor engineers and establish strong software architecture and development practices 

Support ground and flight-test campaigns, including real-time troubleshooting 

Requirements::

Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or a related field 

7+ years of professional software-development experience for Senior-level consideration 

10+ years of relevant experience, or an equivalent record of technical leadership and impact, for Principal-level consideration 

Advanced proficiency with modern C++, including C++17 or newer 

Experience designing and delivering complex, production-quality software systems 

Strong knowledge of concurrency, memory management, software architecture, and performance-oriented development 

Experience with distributed, real-time, embedded, robotic, aerospace, or other hardware-connected systems 

Experience with TCP, UDP, multicast, and socket-level network programming 

Ability to define architectures, interfaces, protocols, and system boundaries in ambiguous environments 

Experience integrating software with hardware, external services, or independently developed subsystems 

Strong debugging skills across software, networking, and hardware interfaces 

Ability to clearly communicate technical decisions, risks, and tradeoffs across multidisciplinary teams 

Demonstrated ownership through design, implementation, integration, testing, and deployment 

Preferred Skills and Experience::

Experience with mission systems, command-and-control software, mission planning, ground-control systems, autonomy platforms, or operator-facing applications 

Aerospace, defense, robotics, autonomous vehicle, or spacecraft experience 

Experience with RF communications, SATCOM, line-of-sight radios, or tactical datalinks 

Familiarity with publish/subscribe architectures or middleware such as DDS, ZeroMQ, ActiveMQ, or Kafka 

Experience integrating third-party sensors, payloads, autonomy services, radios, or mission subsystems 

Knowledge of avionics architectures, aircraft networks, telemetry, and command-and-control workflows 

Linux software development and deployment experience 

Experience developing fault-tolerant or degraded-mode behaviors for distributed systems 

Experience with simulation, SIL, HIL, system-integration labs, ground tests, or flight tests 

Familiarity with standards such as DO-178C, ARINC, FACE, OMS/UCI, STANAG, or MIL-STD 

Experience establishing technical direction or influencing execution across multiple teams 

Experience working in a startup or rapid-prototyping environment 

Compensation:

Senior - 150,000 - 200,000

Principal - 170,00 - 230,000

U.S. Citizenship Requirement

Due to U.S. Government requirements associated with access to Controlled Cryptographic Items (CCI) and related controlled information, this position is limited to U.S. citizens. U.S. permanent residents (Green Card holders) are not eligible for this role.

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

Health & Wellness: 100% employer-paid healthcare and pet insurance

Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses

Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees

Office Perks: Weekly paid office lunches and fully stocked breakrooms

U.S. EXPORT CONTROL COMPLIANCE STATUS 

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending. 

EQUAL OPPORTUNITY

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

#LI-JC3

Source: Hermeus careers (Lever)

Similar roles