Avionics Systems Requirements Engineer (ARP4754A, DOORS, DO-178C, DO-254, IBM DOORS, Polarion)

Job Description
Avionics System Requirements Engineer | DOORS | ARP4754A | DO-178C | Systems Engineering | Aerospace

Job Description

Technical Skills

• Bachelor’s or Master’s degree in any one of the following:
• Aerospace Engineering
• Avionics Engineering
• Electronics Engineering
• Electrical Engineering
• Computer Science
• Systems Engineering
• Instrumentation Engineering

• 8–15+ years of avionics systems engineering experience.

• Prior work experience with at least one OEM, Tier-1 avionics supplier, aircraft integrator, or certified airborne systems program.

• Experience in one or more avionics subsystems such as:
• Flight Management System (FMS)
• Datalink
• Radio Navigation
• HUD
• Air Data
• IRS
• Displays
• Communication
• Surveillance
• IMA-hosted applications

Must Have

• An experienced Avionics System Requirements Engineer who has previously performed requirements engineering activities for one or more avionics subsystems on an aircraft development or modification program.

• Expected to support onsite system engineering activities including requirements development, authoring, traceability, validation, review support, and compliance alignment with customer engineering processes and applicable aviation certification standards.

• Should be a practitioner-level engineer, meaning they should have already executed similar work on prior aerospace/OEM programs and should be able to contribute with limited supervision after onboarding to the customer’s process, tools, and templates.

Good to Have

• Prior experience in avionics subsystems such as:
• Flight Management System (FMS)
• Datalink / Communication Management
• Radio Navigation
• HUD / Head-Up Display
• Air Data System
• Inertial Reference System (IRS / ADIRS)
• Flight Control Interface Systems
• Displays / Crew Alerting
• Surveillance Systems
• Communication / Navigation / Identification Systems
• Mission or Utility Avionics Systems

Responsibilities

Avionics System Requirements Development and Authoring

• Author avionics system requirements based on stakeholder inputs, system architecture, safety requirements, operational concepts, and interface needs.

• Develop requirements at appropriate abstraction levels, including:
• Aircraft-level allocated requirements
• System-level requirements
• Subsystem-level requirements
• Interface requirements
• Derived requirements
• Safety-related requirements

• Apply customer-specific requirements writing rules, templates, naming conventions, and Ensure requirements are clear, concise, complete, correct, feasible, verifiable, and traceable.

• Apply customer-specific requirements writing rules, templates, naming conventions, and review checklists.

• Convert informal engineering into structured requirements suitable for design, implementation, integration, and verification.

• Support refinement of existing requirements to remove ambiguity, duplication, inconsistency, or non-verifiable wording.

• Develop requirements for avionics functions such as:
• Navigation data processing
• Flight plan management
• Sensor input processing
• Data bus communication
• Display output behavior
• Failure annunciation
• Mode management
• Built-In Test (BIT) behavior
• Interface monitoring
• Degraded mode operation

Translation of Stakeholder, Safety, and System Needs into Requirements

• Interpret stakeholder requirements and convert them into measurable avionics system requirements.

• Analyze inputs from:
• Aircraft-level requirements
• Operational scenarios
• Functional Hazard Assessment (FHA)
• Preliminary System Safety Assessment (PSSA)
• System Safety Assessment (SSA)
• Interface Control Documents (ICDs)
• System architecture models
• Certification plans
• Customer standards and process guidelines

• Translate safety objectives and failure condition classifications into system-level design and verification requirements.

• Identify missing, incomplete, conflicting, or unclear stakeholder and system inputs.

• Capture derived requirements generated from architecture, design constraints, interface behavior, or safety analysis.

• Ensure each requirement is stated in a verifiable manner using appropriate language such as "shall."

• Define expected system behavior for:
• Normal operation
• Abnormal operation
• Failure conditions
• Loss of input data
• Invalid data
• Degraded modes
• Power-up and initialization
• Reversionary modes
• Maintenance modes

Certification and Process Compliance Support

• Support development of requirements in alignment with system development lifecycle processes such as ARP4754A.

• Ensure requirements are suitable for downstream compliance with applicable standards such as:
• ARP4754A for aircraft and system development
• ARP4761 / ARP4761A for safety assessment inputs
• DO-178C for software-related requirements allocation
• DO-254 for airborne electronic hardware-related requirements allocation
• DO-160 for environmental qualification considerations
• DO-297, where IMA platform allocation is applicable

• Support certification-oriented review of requirements to ensure:
• Traceability
• Verifiability
• Completeness
• Correctness
• Design independence where required
• Linkage to safety and compliance objectives

• Participate in certification Ensure requirements are aligned with customer/OEM methodology and certification artifact expectations.

• Support preparation and review of evidence required for certification audits and internal quality gates.

• Participate in certification and quality reviews related to system requirements.

• Use customer-designated requirements management tools such as:
• IBM DOORS / DOORS Next
• Polarion
• Jama Connect
• Siemens Teamcenter
• PTC Integrity
• Codebeamer
• Enterprise Architect / Cameo, where applicable

• Generate traceability reports, review packages, gap reports, and change impact summaries.

• Should have hands-on working experience in at least one industry-standard requirements management tool and should understand how traceability is used during reviews, audits, verification planning, and change control.

Requirements Review, Validation, and Quality Support

• Participate in requirements review meetings with customer/OEM teams, suppliers, and cross-functional engineering stakeholders.

• Support validation of requirements against stakeholder needs and operational use cases.

• Support review of requirements with:
• System engineering teams
• Safety teams
• Software teams
• Hardware teams
• Integration and test teams
• Certification representatives
• Supplier engineering teams

• Provide comments, dispositions, and technical justifications during peer reviews and formal reviews.

• Support requirements baseline creation and change control activities.

• Assist in defect resolution related to requirement ambiguity, interface mismatch, or verification failure.

Tools

• Requirements Management Tools:
• IBM DOORS
• DOORS Next Generation
• Polarion
• Jama Connect
• Codebeamer
• PTC Integrity
• Teamcenter Requirements

• Architecture / Modeling Tools:
• Cameo Systems Modeler
• MagicDraw
• Enterprise Architect
• Rhapsody
• MATLAB / Simulink (where applicable)

• Review and Lifecycle Tools:
• JIRA
• Azure DevOps
• Git / Configuration Management Tools
• Change Control and Problem Reporting Tools
• Customer-specific PLM or ALM Tools


Requirements
Sailpoint