Yoftahe Petros

Dynamic Product Engineer with a B.S. from California State University, Fresno.
Expertise in GD&T, microfluidics, and process engineering. Proven track record
in developing innovative solutions for DNA sequencing and system integration
projects. Skilled in using advanced metrology equipment, DFMEA, and statistical analysis
tools. Strong leadership and communication skills, with a commitment to safety
and quality assurance. Experienced in project management, inventory control, and
cross-functional team collaboration. Open to relocation and travel, seeking to
leverage technical and problem-solving skills in a challenging engineering role.

• Roche Sequencing Solutions, Inc., Mechanical Engineer, 12/22, Present, Support development of consumable fluidic devices with educational or professional background in mechanical and/or process engineering., Developing a revolutionary, low cost single-molecule DNA sequencer that can potentially improve the lives of people in a wide variety of ways including timely screening for diseases., In addition, diagnosis of various cancers by fusing biological and integrated circuit technology., Support surface chemistry teams in a variety of activities as needed., Responsibilities: Flowcell manufacturing, process development and assembly. Dimensional and mechanical measurements including data analysis and reporting. Surface metrology and characterization, component testing and quality checks, and visual inspection., Biocompatibility and materials compatibility testing. Sample preparation for external analysis. Component and subcomponent inventory management; shipping preparation and receiving. Operation of microfluidic systems., Developed data trackers for measurements that are outsourced and data/analysis we gather internally, Pressure and Leak Testing for complex consumable medical devices., Failure investigation process and Methodologies., Using Microsoft Excel heavily., Applying metrology or microscopy equipment such as the Keyence VR, Inspex, OGP, MicroVu and many more devices in our labs., Design for Manufacturing (DFM), Design of Experiments (DoE), technology/process CPM transfer experience, product/process failure mode and effects analysis (FMEA), and problem-solving methodologies., Using JMP, R, Matlab, SolidWorks, and AutoCad other statistical analysis., Manages new product introduction and production support engineering for a specific product or group of products after transfer from design to in-house or outsourced production., Interfaces with design, process, test, reliability and manufacturing engineering to solve product issues and production problems., Develops and sustains process improvements to reduce production costs and increase yields., Support E-Chem testing of flowcells and counter electrodes for non-QC activities. Took on as the primary resource for evaluations or experiments that require this test method., R&R: Component evaluations and test methods development including metrology. Ownership of components failure analysis. Inventory management and materials transfer. Data analysis and reporting (dimensionals and functional test methods). Supports design control and verification activities for varying sequencing projects., GD&T Fundamentals Training Course, 01/24, Understood datums and how they are applied on drawings for design, manufacturing, and inspection and how GD&T is applied. Fundamentals of how GD&T is defined., GD&T Training for Quality, Inspection and Reporting, 09/24, Training on how to describe potential root causes for discrepancies in GD&T inspection results, relating to metrology software programming and calculation algorithms., GD&T inspection report, Completed a GD&T inspection report which includes Method A conformance, Method B measured values, and Method C supplemental data as per the ASME Y14.45-2021 Standard.
• DALEO INC., Field Engineer, 04/22, 09/22, Assist Project Managers and Superintendents in the management of gas construction., Started projects by performing key tasks, including field preconstruction, scheduling, material ordering, document control and mobile as-builts., As a self-directed and motivated individual I support the team and represent Daleo in the most professional manner., Participate and assist with job setup. Create and maintain Mobile As-Built and job documentation (job to job travel required), Creates project schedules with support of higher-level Project Engineers and Project Managers., Responsible for ensuring Foreman and field crew has everything necessary to complete a project successfully., Offers technical information to Project Superintendent to ensure work compiles with applicable codes, drawings, and specifications., Collect and manage all field/project documentation.
• TRC and PG&E, Gas Field Engineer and Crossbore Inspector, 07/21, 10/21, Communicates scheduling and scope changes with Company management and Contractors as required., Acts as a liaison between the customer, contractor and all other workgroups that are involved in the construction project., Completes all documentation for associated inspection work., Maintains public and employee safety on site always by promoting a positive safety culture, exhibiting an absolute commitment to safety for self and others, and by ensuring all applicable safety rules, regulations and standards are followed., Participates in all Contractor safety and pre-construction tailboard meetings to ensure compliance with Company safety, standards and work procedures., Performs oversight and inspection of construction projects, Integrity Management digs, potholing and other work as required., Performs direct oversight of Contractor Crossbore inspection crews to ensure compliance with job drawings and specifications, and Company standards and specifications over the entire Company territory., Monitors and inspects construction activities during: clearing of Right of Way, installation of Storm Water Pollution Prevention Plan and other environmental protection measures, erection of temporary facilities such as fences and other public safety items, site work, excavation, backfill, site restoration, lowering of pipe, unloading and handling of piping materials, pre-excavation, Ground Penetrating Radar and electromagnetic utility location, Electrolysis test station installation, compaction testing, and line markers., Maintains all required Quality Assurance/Quality Control and as-built documentation on site as per Company Standards., Turns over timely, legible, complete, and error-free to the as-built mapping team at the end of the project., Considers, documents, and communicates compliance requirements of project.
• Syserco, Project Engineering Intern, 05/21, 07/21, Control program use, including trend logs, zones, alarms, reports, back-up, graphics, DDC code modification and creation., Functionality verification of DDC control components using Alerton Compass., Startup of control and HVAC systems., Commissioning of control and HVAC systems and executed field changes/directives incorporating changes in database and programs., Troubleshooted component and equipment problems through software programs., Field documentation (As-built drawings, checkout sheets, screens, and cross-referencing excel spreadsheets)., Consistent and clear communication with internal and external customers.

• Fluid Mechanics
• Design Machinery Elements
• Finite Element Analysis
• Thermodynamics/Advanced Thermodynamics
• Product Design
• ANSYS
• Solidworks & MATLAB
• Statistics and Experimentation
• Energy Systems Design
• Mechanical Vibrations
• Kinematic of Machinery
• Air Conditioning
• SQL

o GD&T Fundamentals Training Course Jan 2024

o GD&T Training for Quality, Inspection and Reporting Sept 2024

o STEM Certification 2015