Hybrid Mission Systems & Payloads Integration Engineer

at Hermeus

• Job title: Mission Systems & Payloads Integration Engineer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: $140,000 - $190,000 per year
• Degree requirement: Bachelor's Degree
• Tech skills: TypeScript
• Location requirements: Hybrid, Los Angeles, United States

About the role

• Mission Systems and Weapons Integration Engineer responsible for the mechanical, electrical, and software integration of high-speed aircraft systems. Working with the Department of Defense to maintain national advantages.

Responsibilities

• 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