Interface Systems Engineer

ENSCO, Inc.; El Segundo (CA); On-site; USD 135,000 - 169,000; Full time

Job summary

ENSCO, Inc. is seeking an Interface Systems Engineer to collaborate with Space Force program teams on critical space mission capabilities. You will craft ICDs, coordinate with government leaders, and drive interface documentation across space and ground segments.

You will work in a highly integrated, cross-functional environment, applying MBSE concepts and standard SE tools to ensure secure, reliable communications for national security missions.

Qualifications

• Bachelor’s degree in engineering, computer science, or related technical field.
• 8+ years in satellite systems, spacecraft development, or aerospace engineering, incl. 5+ years on DoD programs.
• Direct experience developing or managing ICDs for complex systems.
• Familiar with spacecraft subsystems and data interfaces.
• Strong writing and communication; eligible for DoD secret clearance.

Responsibilities

• Develop, author, and maintain ICDs for cross-system interfaces.
• Serve as ICD owner, coordinating inputs and maintaining baseline.
• Coordinate with CM for ERBs and CCBs.
• Develop interface diagrams, data dictionaries, mappings.
• Identify interface risks and guide issue resolution.
• Support system integration with authoritative documentation.
• Ensure documentation meets standards and regulatory requirements.
• Provide SME review for prime contract changes.
• Coordinate Interface Working Groups across stakeholders.
• Align models with ICDs and requirements flowdown for cybersecurity.
• Prepare acquisition and technical briefs and papers.
• Collaborate with primes, other contractors, government civilians, and Space Force.

Skills

ICD ownership

Systems engineering

Technical writing

Communication skills

Education

Bachelor’s degree in engineering

Master’s degree in engineering

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 MILSATCOM, such as ESS, AEHF, EPS, PTES, PTS, WGS, and FAB-T terminal programs
• Proficient in usage of model-based systems engineering (MBSE) tools
• Professional certifications (e.g., PMP, INCOSE CSEP/ESEP/ASEP)
• Active Secret security clearance or higher

Work Location Type:

On-Site

Required Certifications:

None

U.S. Citizenship Required:

Yes

Security Clearance Required:

Ability to obtain secret

Employment Type:

Regular Full-time

Background Check Type:

7 Year Pre-Employment

Drug Screen Required:

No

Position Contingent Upon Contract Award:

No

Salary Range

$135,000 - $169,000 USD

REAL ID Requirement

This position may require the ability to access to U.S. federal facilities. In accordance with the Department of Homeland Security’s enforcement of the REAL ID Act, as of May 7, 2025, individuals must present a REAL ID-compliant form of identification or an acceptable alternative to gain entry. For a list of acceptable forms of identification, please click here.

Benefits

At ENSCO, a positive working environment and a competitive salary are only part of the reason for choosing a career here. We offer a comprehensive benefits package that creates a stimulating and supportive environment where you can thrive - visit ensco.com/careers/benefits to learn more.

Export Control and Licensing

This position may involve access to technology or technical data that is controlled under U.S. export control laws and regulations and the release of which to a non US person may require an export license from the U.S. Government.

Privacy

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EEO Statement

ENSCO, Inc. and its wholly owned U.S. subsidiaries are Equal Opportunity Employers– veterans, disability