Hermeus

Mission Systems & Payloads Integration Engineer

Hermeus

full-time

Posted on:

Location Type: Hybrid

Location: Los Angeles • California • 🇺🇸 United States

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Salary

💰 $140,000 - $190,000 per year

Job Level

Mid-LevelSenior

Tech Stack

TypeScript

About the role

  • Lead weapons and pylon integration: own the mechanical, electrical, and software integration of weapons, pylons, and Bomb Release Units (BRUs); interpret weapons interface specifications, technical orders, ICDs, wiring diagrams, and software interface definitions to produce subsystem-level integration plans and acceptance criteria.
  • Ensure OMS and UCI software compliance: develop, implement, integrate and validate mission service behaviors, command-and-control messages, telemetry structures, and state-machine logic under Open Mission Systems (OMS) and Universal Command and Control Interface (UCI) standards; ensure weapon-related services conform to the authoritative service catalog and system-level schema definitions.
  • Translate engineering artifacts into OMS/UCI service implementations: convert aircraft-level ICDs, interface requirements, and Stores Management System (SMS) behaviors into OMS/UCI service definitions; develop subsystem requirements that specify how weapons publish, subscribe, and exchange command and telemetry data.
  • Develop API adapters and message translators: create or validate API-level adapters, protocol translation layers, and OMS/UCI service stubs that allow legacy 1760/1553/UAI interfaces to communicate with higher-level mission systems; enforce consistent schema validation, error handling, and interface versioning.
  • Conduct safe separation analysis and integrate logic into software: collaborate with aerodynamicists and test engineers to model safe separation trajectories and embed release conditions, timing constraints, and safety logic into OMS/UCI services, simulation models, and flight software behavior.
  • Support SITL, HITL, and JSE weapon integration: integrate weapon behaviors, messaging flows, timing models, and state-machine transitions into Software-in-the-Loop (SITL), Hardware-in-the-Loop (HITL), and Joint Simulation Environment (JSE) frameworks; ensure fidelity and determinism between simulated and real hardware behaviors.
  • Collaborate with autonomy and mission planning teams: ensure OMS/UCI weapon services interface correctly with autonomy behaviors, mission planning outputs, operator workflows, and Stores Management System logic; define schemas, command structures, and telemetry paths that allow autonomy to reason about weapon availability and constraints.
  • Support ground and flight test execution: contribute to ground test scripts, functional checks, avionics bus validation, built-in-test logic, and flight test preparations; support in-flight carriage, release testing, anomaly resolution, and evidence collection aligned to OMS/UCI service definitions.
  • Maintain ICD and OMS/UCI conformance: develop and maintain conformance matrices, schema validators, message catalog diff tools, and automated interface checks; ensure backward compatibility across ICD and service catalog revisions while maintaining alignment with the overall mission architecture.
  • Contribute to broader mission system integration: support integration tasks involving ground control, debrief/data systems, logging pipelines, and simulation models when weapons workload is low; ensure consistent OMS/UCI messaging and schema usage across subsystems.
  • Communicate integration status: provide clear technical updates, risk assessments, and mitigation strategies to the Lead Systems Integration Engineer, the Product Engineering Lead, and program leadership.
  • Generate end-product deliverables for internal and external customers: produce high-quality, traceable, and review-ready engineering artifacts including documentation, reports, data packages, analysis outputs, integrations, and configuration updates that meet program requirements, support design reviews, and satisfy customer or partner expectations.

Requirements

  • Bachelor’s or Master’s degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, Software Engineering, Systems Engineering, or a related discipline.
  • 6+ years of experience integrating weapons, pylons, or Stores Management Systems on aircraft, bombers, or unmanned aerial systems (UAS).
  • Strong software engineering background with experience in languages such as C, C++, or equivalent used in embedded systems, mission systems, or avionics platforms.
  • Demonstrated expertise implementing or integrating Open Mission Systems (OMS) and Universal Command and Control Interface (UCI) services, schema definitions, message catalogs, and command/telemetry structures.
  • Familiarity with MIL-STD-1760, MIL-STD-1553, Universal Armament Interface (UAI), electrical loads, timing constraints, and weapons state-machine modeling.
  • Hands-on experience developing API adapters, message translators, schema validators, OMS/UCI service stubs, and automated interface test harnesses.
  • Experience integrating mission or weapons software into Software-in-the-Loop (SITL), Hardware-in-the-Loop (HITL), and Joint Simulation Environment (JSE) frameworks.
  • Ability to read and produce software ICDs, avionics bus documentation, wiring diagrams, data-flow specifications, and subsystem software requirements.
  • Familiarity with Stores Management System (SMS) logic, mission planning outputs, and autonomy-driven weapon allocation behaviors.
  • Proficiency with software development workflows including version control, continuous integration, automated testing, and regression analysis.
  • Strong communication and cross-disciplinary coordination skills across avionics, autonomy, mission systems, ground control, simulation, and test teams.
  • Active Secret clearance required; Top Secret / Sensitive Compartmented Information (TS/SCI) preferred.
Benefits
  • 100% employer-paid health care
  • 401k & Retirement Plans
  • Unlimited PTO
  • Weekly Paid Office Lunches
  • Fully stocked breakrooms
  • Stock Options
  • Paid Parental Leave

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
CC++Open Mission Systems (OMS)Universal Command and Control Interface (UCI)API developmentschema validationSoftware-in-the-Loop (SITL)Hardware-in-the-Loop (HITL)Joint Simulation Environment (JSE)weapons integration
Soft skills
communicationcross-disciplinary coordinationrisk assessmenttechnical updatescollaboration
Certifications
Bachelor’s degreeMaster’s degreeActive Secret clearanceTop Secret / Sensitive Compartmented Information (TS/SCI)