Software Systems Engineering

End-to-end mission lifecycle engineering from advanced concepts through on-orbit operations.

Software Systems Engineering

EFSI provides end-to-end software systems engineering that spans the entire mission lifecycle, from advanced concepts and formulation through launch, on-orbit operations, and decommissioning. We serve as a critical bridge between complex mission requirements and executable technical architectures for both internal Goddard Space Flight Center (GSFC) developments and external project oversight.

Our team delivers quality products and expertise to ensure the success of NASA missions, focusing on reusable architectures to reduce cost and minimize programmatic risks.

NASA GSFC

Integrated Software Systems Mission Architecture

Flight Software Systems

We deliver high-fidelity technical monitoring and engineering evaluations for spacecraft and instrument software. Our expertise includes requirements generation, interface definition, and design assessments to ensure flight hardware and software operate as an integrated science observatory.

Explore Flight Software
Ground Segment Engineering

EFSI manages the complexity of enterprise-level ground systems, developing requirements and architectures for mission planning, spacecraft control, and telemetry trend analysis. We utilize FOGI-Lake to deploy a Digital Twin (equivalent to a hardware flatsat), compressing schedules by eliminating the need for physical hardware during development.

Explore Ground Systems
Lifecycle Validation & Safety

Our systems engineers lead rigorous verification and validation (V&V) programs, including independent risk assessments of operational requirements and safety-critical software. We ensure every system meets NASA 7150.2 and NASA-STD-8739.8 standards, identifying and mitigating risks well in advance of negative consequences.

Explore SMA
Architectural Flexibility

We provide end-to-end development using Model Based Systems Engineering (MBSE) specifically upon customer request and concurrence, ensuring our methodology aligns with specific project preferences and institutional standards.

Systems Engineering Portfolio

EFSI provides systems engineering, technical monitoring, and lifecycle support for a diverse fleet of strategic climate, Earth science, and planetary missions.

GeoXO

Geostationary Extended Observations — next-generation geostationary Earth observation system.

PACE

Plankton, Aerosol, Cloud, ocean Ecosystem — advancing our understanding of ocean biology and atmosphere.

GOES-R Series

Including GOES-19/U and maintenance mode support — geostationary weather and environmental monitoring.

Roman Space Telescope

Next-generation flagship observatory for wide-field infrared surveys of the universe.

JWST

James Webb Space Telescope — the world's premier space science observatory.

JPSS

Joint Polar Satellite System — polar-orbiting environmental satellite constellation.

Mars Return (CCRS)

Mars sample return campaign — Capture, Containment, and Return System engineering support.