Christopher Ruff Email & Phone Number

Woodlawn, Tn, Us

Arlington, Va, Us

• Flight software and firmware requirements lead• MBSE development of detailed spacecraft/payload system models within Cameo/MSOSA-- Requirements definition including refining system use cases & activity diagrams to prove complete requirements traceability and functional decomposition to unit level-- Modeled use cases and activity diagrams for complex systems such as spacecraft avionics-- Developed detailed sequence diagrams for model based design such as boot/initialization, subsystem interfacing, and ground in the loop activities• MBSE report tool development including scripting autogenerated reports of model data & metrics• Customer-focused programmatic and technical reviews to ensure team meets scheduled deadlines and expected system functionality

Arlington, Va, Us

• MBSE development of detailed payload/spacecraft models within Cameo: including requirements, block definition, activities, sequences, and parametric diagrams• Hi-fidelity model parsing for automated generation of reports and metric tracking tables• Cameo element-synced mass and power rollup calculations/simulations• MBSE software tool development: including Python/Velocity/Java scripting, object-oriented programming, and database management­ -- Command/telemetry database sync into system model, which provided element changelog tracking and increased modeling efficiency/diagramming speed by tenfold­ -- Autogenerated, standardized exports of system model into deliverable report format• Software command product development, data science, and verification of command/telemetry database and metadata

Laurel, Maryland, Us

• Software Verification and Validation (V&V) for the Space and Missile Defense Applications group-- Performed software qualification, requirements V&V, and developed test case scenarios-- Performed unit, integration, system, and acceptance testing-- ­Drafted a Verification & Validation Test Plan with requirements matrix and test methodology• Performance analysis & hi-fidelity database generation of satellite sensors using multi-dimensional interpolation methods in MATLAB­-- Principal component analysis, machine learning models, and cross-validation for complex data sets• Software engineering and development of in-house satellite constellation program-- Trajectory analysis, performance optimization, data post-processing, and error handling• Developed state machine diagrams for a space network satellite using Enterprise Architect

Pomona, California, Us

• LRL is university-affiliated organization designing an original liquid rocket engine, launch vehicle, and test stand which will be capable of reaching the Karman Line (100 km altitude)­-- Design and analysis of an original gas-generator cycle, dual turbopump-fed engine­-- Impeller hydrodynamics, axial thrust balancing, and volute design for both fuel and oxidizer turbopumps-- 3D modeling, computational fluid dynamics, and test reports of turbopump feed systems

Ferrer & Associates is a private civil engineering and surveying firm that has subcontracted many projects for the LA Unified School District, private owners, and various cities around Southern California.- Operated a total station to survey topographic points and boundaries- Processed data, calculated center-line intersections, and determined propertylines using MicroSurvey StarNet for topographic analysis- Drafted topographic maps of surveyed properties using AutoCAD Civil 3D

Carson, California, Us

- Topographic field survey and analysis including public and private properties- Property boundary location- Topographic map drafting using AutoCAD- Underground utility mapping

Aerospace, Aeronautical And Astronautical Engineering

Education record

Education record