BENJAMIN OBENG
White Plains,NY
Summary
Mechanical engineer focused on precision design, test fixtures, and manufacturable electromechanical systems. Work spans Siemens NX CAD/CAM, GD&T, tolerance analysis, DFM/DFA, validation testing, and cross-functional build support to improve repeatability, reduce rework, and move hardware from concept to production-ready solutions.
Overview
1
1
Certification
8
8
years of professional experience
Work History
Senior Solutions Engineer, Mechanical Systems
Siemens Healthineers
11.2025 - Current
- Lead mechanical solution development for precision electromechanical diagnostic and test systems, translating performance, safety, serviceability, manufacturability, reliability, and lifecycle requirements into practical system and subsystem architectures.
- Integrated mechanical designs with electrical, controls, software, sensors, and production requirements; navigated design trade spaces to balance packaging, stiffness, vibration, thermal behavior, service access, manufacturability, cost, and schedule.
- Designed and built custom electromechanical test fixtures, test stands, alignment and handling devices, subsystem interfaces, and engineering verification hardware; managed concepts through detailed CAD, drawings, fabrication, assembly, checkout, and qualification.
- Led the design, development, and fabrication of test fixtures for diagnostic instrument subsystems, enabling comprehensive performance characterization, functional testing, and design validation.
- Perform tolerance stack-ups, GD&T definition, interface analysis, and fit/clearance studies to control alignment, mechanical load paths, repeatability, accessibility, and assembly risk across complex hardware.
- Coordinate internal engineering teams, technicians, facilities and maintenance partners, suppliers, and fabricators to execute system builds, resolve integration issues, and transition one-off engineering solutions into robust, repeatable systems.
- Apply dimensional metrology, FEA and engineering analysis, structured root-cause methods, and hands-on troubleshooting to diagnose system failures, validate corrective actions, and improve equipment reliability and test repeatability.
- Created engineering documentation, build and inspection requirements, and acceptance criteria that enhanced traceability and accelerated deployment of future mechanical solutions.
- Siemens Healthineers – Diagnostics
Lead Tool & Die Design & Additive Manufacturing Engineer
Siemens Healthineers
08.2019 - 11.2026
- Designed and validated complex tool and die assemblies in Siemens NX with detailed GD&T, tolerance stack-up ensuring manufacturability, dimensional accuracy, and process repeatability while collaborating via Teamcenter for full design traceability.
- Integrated additive and subtractive manufacturing workflows (SLA, FDM, CNC, and EDM) to optimize fabrication cycles, improving tooling lead times by over 25% and reducing design iteration loops.
- Developed in-house manufacturing and machining capabilities for precision tooling, jigs, and fixtures to support new product introduction across diagnostic equipment platforms.
- Performed DFM/DFA analyses and cross-functional design reviews with mechanical and manufacturing teams to identify cost drivers and eliminate assembly inefficiencies before building.
- Executed root cause investigations and dimensional inspections (Faro Arm, PolyWorks), and performed reverse engineering and tooling failure analyses using metrology data to enhance process improvement and implement corrective actions.
- Collaborated with global suppliers and upstream production teams to ensure strict alignment with engineering specifications and quality standards in the procurement of raw materials and precision components.
- Led operator training and technical workshops on DFAM, precision machining, and tool validation, fostering collaboration between design engineers, machinists, and quality personnel.
Design and Prototyping Engineer – Startups & R&D Prototypes
Mediphor-Design
09.2018 - 05.2019
- Led mechanical design and prototyping of early-stage electromechanical systems, converting conceptual ideas into functional, manufacturable assemblies under tight development timelines.
- Developed precision tooling, fixtures, and prototype components through CNC machining and additive manufacturing (SLA, FDM), achieving tight dimensional tolerances and consistent performance.
- Performed DFM/DFA and tolerance analyses to enhance manufacturability and assembly efficiency, minimizing rework and expediting time-to-prototype.
Thermogalvanic Research Engineer
Sustainable Thermal Engineering Laboratory (ASU)
07.2018 - 05.2019
- Co-invented and prototyped a patented 3D-printed thermogalvanic energy-harvesting module (US11346103B2) incorporating Triply Periodic Minimal Surface (TPMS) lattices to enhance heat transfer and mechanical integrity under dynamic thermal gradients.
- Led the mechanical design, simulation, and fabrication of experimental modules, integrating CAD-based optimization, tolerance analysis, and thermal-structural validation to achieve target performance.
- Led mechanical system design and validation, collaborating with international R&D teams across mechanical, thermal, and electrochemical domains to integrate sensors and test jigs, enhancing overall module performance.
- Collaborated with international research teams at UNSW and King’s College London to refine lattice geometry and electrode design—achieving a 15% increase in thermal-to-electric conversion efficiency.
- Developed experimental protocols and analyzed test data using MATLAB and Python, correlating geometric parameters with power output and structural resilience to improve design accuracy.
Makerspace Assistant – Lead 3D Printing Expert
Arizona State University Library
06.2018 - 05.2019
- Led training programs and workshops in additive manufacturing, CAD, and prototyping, mentoring engineering teams on rapid iteration and manufacturability.
- Operated and maintained diverse 3D printing technologies (FDM, SLA) to produce functional prototypes and precision assemblies meeting tight dimensional tolerances.
- Advised on design-for-printability strategies and material selection to enhance functional integrity and repeatability across various engineering use cases.
- Oversaw fabrication of custom mechanical parts and fixtures for university events, demonstrating expertise in low-volume, high-quality manufacturing workflows.
Education
Master of Science - Mechanical Engineering
Arizona State University (ASU), Ira A. Fulton Schools of Engineering
Tempe, AZ05-2019
Bachelor of Science - Mechanical Engineering
Kwame Nkrumah University of Science & Technology (KNUST)
Kumasi, Ghana05-2018
Skills
- CAD/CAM & Design Tools: Siemens NX, SolidWorks, Fusion 360, Rhino3d, Grasshopper, Teamcenter
- Optical comparison
- Prototyping & Fabrication: 3D Printing, CNC Machining, Wire EDM, Sheet Metal Forming, Injection Molding, Vacuum Forming, Reverse engineering
- Quality & Inspection: First Article Inspection (FAI), CMM (Faro Arm, PolyWorks), Fault analysis, Statistical Validation, Surface profilers
- First article validation
- Coding & Data Analysis: Python, MATLAB, R
- Electromechanical systems
Certification
- Lean Six Sigma White Belt
- SAE GD&T Certification
- PolyWorks Metrology (CMM) Certification
HONORS & AWARDS
2024 Society of Manufacturing Engineers (SME) 30 Under 30, Executive Member of Additive Manufacturing Emerging Professionals Committee – Society of Manufacturing Engineers, Guest Speaker – Future of Additive Manufacturing in Africa (FAMA), IET, UN Intergenerational Dialogue Participant (with Deputy Secretary General), NSF I-Corps Participant, Da Vinci Award – Most Talented Mastercard Foundation Scholar 2017/2018, Mastercard Foundation Scholar -2017
PATENTS
"Systems and Methods for a Power Generating Thermogalvanic Brick" Co-Inventor, US Patent App No. 62747595 – Generates electricity using temperature gradients via 3D-printed thermogalvanic cells.
Timeline
Senior Solutions Engineer, Mechanical Systems
Siemens Healthineers
11.2025 - Current
Lead Tool & Die Design & Additive Manufacturing Engineer
Siemens Healthineers
08.2019 - 11.2026
Design and Prototyping Engineer – Startups & R&D Prototypes
Mediphor-Design
09.2018 - 05.2019
Thermogalvanic Research Engineer
Sustainable Thermal Engineering Laboratory (ASU)
07.2018 - 05.2019
Makerspace Assistant – Lead 3D Printing Expert
Arizona State University Library
06.2018 - 05.2019
Master of Science - Mechanical Engineering
Arizona State University (ASU), Ira A. Fulton Schools of Engineering
Bachelor of Science - Mechanical Engineering
Kwame Nkrumah University of Science & Technology (KNUST)