Interface Systems Engineer

ensco; El Segundo (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

ENSCO Inc. seeks an Interface Systems Engineer to work with government mission leaders and program teams on a critical space mission capability.

You will develop, maintain, and own Interface Control Documents (ICDs) for cross-system interfaces between space assets and ground segments, ensuring alignment with the technical baseline. The role requires DoD program experience, excellent technical writing, and strong coordination with configuration management, ERBs, CCBs, and prime contractors to

Qualifications

• Bachelor's degree in engineering, computer science, or related field.
• 8+ years of experience in satellite systems, spacecraft development, or aerospace engineering, with DoD programs.
• Experience developing or managing ICDs for complex systems.
• Strong ability to read and create schematics, interface diagrams, and data communication structures.
• Excellent technical writing and communication skills.

Responsibilities

• Develop, author, and maintain ICDs for cross-system interfaces between space and ground segments.
• Serve as ICD owner, coordinating inputs and ensuring alignment with the baseline.
• Coordinate with Configuration Management for ERBs and CCBs.
• Develop interface diagrams, data dictionaries, and telemetry mappings.
• Identify interface risks and drive issue resolution across teams.
• Support system integration and test activities with authoritative documentation.

Skills

Interface systems engineering

Technical writing

Communication skills

Stakeholder coordination

Education

Bachelor's degree in engineering or related field

Master's degree (desired)

Tools

DOORS

Cameo

Job description

For more than 50 years, ENSCO has been providing leading-edge engineering, science and advanced technology solutions to governments and private industries worldwide.

ENSCO prides itself in creating and applying advanced technologies for mission success. We provide systems engineering, integration, and advanced technology services to transform the future safety, security, and resiliency of critical missions on the ground, in the air, in space, and in the information systems that connect these domains.

Learn more about ENSCO.

Position Description

ENSCO Inc. is a diverse engineering and technology company that provides engineering, science, and advanced technology solutions supporting mission success, safety, and security for government and commercial customers worldwide.

We are seeking an Interface Systems Engineer to work directly with Government mission leaders and independently governed program teams delivering elements of a critical space mission capability. Each participating organization may hold a different architecture vision, acquisition path, technical baseline, funding profile, and delivery schedule. This role creates trusted relationships and shared technical evidence needed to bring those efforts together.

The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the Space Force's Space System Command. We support the Space Force's acquisition of state of the art Military Satellite Communications systems, providing global secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.

Primary Responsibilities

• Develop, author, and maintain Interface Control Documents (ICDs) for cross-system interfaces between space (including spacecraft and payloads) and ground segments
• Serve as the system-level ICD owner/book boss, responsible for coordinating inputs, maintaining document structure, adjudicating comments, and ensuring the ICD reflects the authoritative technical baseline
• Work closely with the Configuration Management team in preparing for Engineering Review Boards (ERBs) and Configuration Control Boards (CCBs)
• Develop interface diagrams, data dictionaries, message formats, command and telemetry mappings, and system level interface descriptions
• Identify interface risks and drive technical issue resolution across engineering teams
• Support system integration and test activities by providing authoritative interface documentation and clarification
• Ensure that documentation complies with best practices, program standards, and regulatory requirements
• Provide technical Subject Matter Expert (SME) support to review of prime contract change proposals
• Manage and coordinate Interface Working Groups, ensuring consistent communication across all stakeholders
• Work closely with MSEIT modeling team to ensure models align with relevant ICDs and requirements flowdown associated with the cybersecurity technical baseline
• Develop acquisition and technical briefings, plans, papers, and other documentation in support of Gov't decision making
• Collaborating with prime contractors, other support contractors, government civilians, and members of the U.S. Space Force

Qualifications Required

• Bachelor's degree in engineering, computer science, or related technical field.
• 8+ years of experience in satellite systems, spacecraft development, or aerospace engineering to include 5 years' experience working on DoD programs
• Direct experience developing or managing Interface Control Documents (ICDs) for complex systems
• Strong familiarity with spacecraft subsystems (e.g., payloads, RF comms, power, GNC, thermal, propulsion, on-board Command and Data Handling)
• Ability to read and create schematics, interface diagrams, and data communication structures
• Experience with systems engineering tools (e.g., DOORS, Cameo)
• Excellent technical writing, documentation, and communication skills
• Strong interpersonal skills, communication (oral and written), and presentation skills
• Demonstrated ability to clearly articulate ideas, recommendations and options to customers, senior leaders, and stakeholders
• Proficient in Microsoft Office products (e.g., Word, Excel, PowerPoint)
• ABILITY TO OBTAIN AND MAINTAIN A DOD SECRET SECURITY CLEARANCE IS REQUIRED FOR THIS POSITION FOR WHICH, YOU MUST BE A U.S. CITIZEN

Qualifications Desired

• Master's degree in engineering, computer science, or related technical field.
• 12+ years of experience with space systems in support of space or ground segment development
• 12+ years of experience in a space acquisitions environment
• Experience in satellite hardware and software development
• Experience in Military, DoW, or Intelligence Community space
• Experience with