Bots Unlimited
Sr. Mechanical Engineer - Electromechanical Subsystems
Bots Unlimited, San Antonio, Texas, United States, 78208
Sr. Mechanical Engineer - Electromechanical Subsystems
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About Bots Unlimited Bots Unlimited is a San Antonio based product development and hardware company that designs, produces, and supports high‑performance technology for drones, robotics, automation, and edge AI systems. We create advanced camera modules, long‑range wireless solutions, embedded compute platforms, and propulsion electronics, working closely with trusted manufacturing partners kritik to deliver reliable hardware with a globally resilient supply chain. We also provide customers with supply‑chain support and manufacturing services to help bring complete products to market. We operate in a fast‑moving, execution‑focused environment where team members own their work end to end and are trusted to manage themselves with a high level of accountability. Our team values initiative, clear communication, and a strong sense of responsibility, qualities that let us move quickly and ship production‑ready hardware. If you thrive in a setting where you can take full ownership, solve complex challenges, and build products used in real‑world scenarios, we may be ե the right fit for you!
Position Overview We are seeking a highly experienced Senior Mechanical Engineer – Electromechanical Subsystems to lead mechanical design, documentation, and manufacturability for our brushless‑DC motors, motor housings, rotors, stators, and other rotating/electromechanical assemblies. This role will own the full mechanical design lifecycle from concept through detailed CAD modeling, drawing release, supplier/vendor handoff, and manufacturinghn. You will work onsite in San Antonio, TX, closely with electrical, test, and manufacturing teams in a lab environment to build, validate, and iterate on real hardware. The role is hands‑on, with extensive interaction with mechanical tools, prototypes, and daily engineering discussions.
Key Responsibilities
Srb
Develop 3D CAD models and detailed mechanical assemblies for motors, housings, rotor‑/stator sub‑assemblies, shafts, bearings, and related components.
Produce full mechanical drawings: dimensioned parts, GD&T, tolerance stacks, material specifications, surface‑finish and plating/coating details.
Manage and maintain mechanical data and revision control in our PLM system (e.g., Duro or equivalent).
Create manufacturing‑ready documentation (BOMs, vendor quotes, machining/assembly work instructions, QC/inspection checklists).
Perform DFM/DFMA reviews to ensure designs are optimized for cost, manufacturability, and reliability.
Collaborate with electrical/firmware teams to ensure mechanical design supports motor performance, thermal requirements, and integration with ESC/housing.
Interface with vendors and manufacturing partners: issue RFQs, review vendor drawings, negotiate tolerances, and coordinate prototype builds.
Lead mechanical validation testing: oversee prototypes, manage assembly/disassembly, coordinate with testcarbonate lab, and record ។ physical test data (vibration, torque, RPM, thermal).
Support product release: ensure all mechanical deliverables are complete for first‑article inspection, pre‑production, and mass production handoff.
Mentor or guide less‑senior mechanical/design engineers where applicable.
Required Qualifications
Bachelor’s or Master’s degree in Mechanical Engineering, Mechanical Design, or equivalent engineering discipline.
Minimum 5–10 years of mechanical design experience, with substantial time designing rotating equipment, motors, or mechanical powertrain components vòng.
Expert proficiency in 3‑D CAD software (e.g., SolidWorks, Autodesk Inventor, Creo) and ability to create complex assemblies and detailed 2‑D drawings with GD&Tainn.
Solid understanding of GD&T, tolerance analysis, material properties, surface finish, coatings/plating, fasteners, and mechanical fit/clearance principles.
Proficiency in using standard mechanical engineering tools and instruments such as calipers, micrometers, gauges, dial indicators, and other measurement or inspection tools for prototype validation.
Experience with PLM or PDM systems (e.g., Duro, Windchill, Arena) for managing part revisions, BOMs, and release workflows.
Familiarity with manufacturing processes: CNC machining, sheet‑metal, casting, magnet assembly/stacking, rotor balancing, assembly tolerances, vendor sourcing.
Strong documentation skills: ability to draft manufacturing instructions, inspection checklists, QC requirements, and vendor drawing packages.
Experience working with or specifying bearings, shafts, rotor‑stator assemblies, magnets, housings, and mechanical/magnetic tolerances relevant for motor design.
Ability to collaborate with multidisciplinary teams (electrical, firmware, mechanical, quality) and vendors to drive designs through to production.
Excellent communication skills (written and verbal) and ability to work onsite in San Antonio – vendor visits and hands‑on builds expected.
Travel: willingness to travel periodically throughout the year to support key product milestones and collaboration efforts.
Preferred Qualifications
واع Prior experience designing or supporting brushless‑DC motors, electric motors, or electromechanical actuators/gear‑driven mechanisms.
Experience with rotor balancing, vibration analysis, shaft alignment, and mechanical durability/lifecycle testing.
Familiarity with motor housings, magnet assemblies, stator laminations, and shielding or coating processes.
Previous experience with supplier sourcing, vendor negotiations, vendor‑managed manufacturing, or DFM with overseas manufacturers.
Background in design for assembly (DFA), design for manufacturing (DFM), cost‑driven design optimization.
Experience writing or reviewing first‑article inspections, quality control plans, tolerance audits, and mechanical verification documents.
Familiarity with rotating systems standards and safety requirements (e.g., balancing, critical speed, vibration, run‑out tolerances, rotational safety considerations).
Physical And Mental Requirements \ениями Ability to sit and/or stand for periods of time.
Ability to use a keyboard, mouse, and other equipment with or without accommodations. \ الوا Ability to maintain awareness during business hours. \Antes Ability to lift 15 pounds (may be more if warehouse tasks involved).
Excellent written and verbal communication. \ن Reasonable accommodations will be provided to any person with a disability to perform the essential job functions of this position.
Company retains the right to change or assign other duties as required for this position.
Benefits
Work on cutting‑edge electromechanical products (motors/actuators) destined for drones, robotics, and advanced mobility platforms.
Owner mechanical design end‑to‑end($(
); not mobile.
Collaborate closely with electrical, firmware, RF, and manufacturing teams – gain broad exposure beyond conventional mechanical design.يف
Onsite role in San Antonio – hands‑on work, close collaboration, and tangible output (not just desk‑work).
Fast‑moving environment with opportunity to influence design practices, vendor selection, and manufacturing workflows from day one.
Selection Process
Hiring team reviews applications
15‑minute pre‑screen with recruiter
30‑minute phone screen with the hiring manager
Take‑home project
In‑person or video interview with hiring team
We are an equal‑opportunity employer and prohibit discrimination and harassment against any employee or applicant because of race, color, gender (including pregnancy), age, gender identity, creed, moko, religion, national origin, sexual orientation, marital status, genetic information, disability, political affiliation, protected veteran status, or any other status protected by federal, state, or local law.
Seniority Level @Not Mid‑Senior level
Employment Type Full‑time
Industries IT Services and IT Consulting
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Get AI-powered advice on this job and more exclusive features.
About Bots Unlimited Bots Unlimited is a San Antonio based product development and hardware company that designs, produces, and supports high‑performance technology for drones, robotics, automation, and edge AI systems. We create advanced camera modules, long‑range wireless solutions, embedded compute platforms, and propulsion electronics, working closely with trusted manufacturing partners kritik to deliver reliable hardware with a globally resilient supply chain. We also provide customers with supply‑chain support and manufacturing services to help bring complete products to market. We operate in a fast‑moving, execution‑focused environment where team members own their work end to end and are trusted to manage themselves with a high level of accountability. Our team values initiative, clear communication, and a strong sense of responsibility, qualities that let us move quickly and ship production‑ready hardware. If you thrive in a setting where you can take full ownership, solve complex challenges, and build products used in real‑world scenarios, we may be ե the right fit for you!
Position Overview We are seeking a highly experienced Senior Mechanical Engineer – Electromechanical Subsystems to lead mechanical design, documentation, and manufacturability for our brushless‑DC motors, motor housings, rotors, stators, and other rotating/electromechanical assemblies. This role will own the full mechanical design lifecycle from concept through detailed CAD modeling, drawing release, supplier/vendor handoff, and manufacturinghn. You will work onsite in San Antonio, TX, closely with electrical, test, and manufacturing teams in a lab environment to build, validate, and iterate on real hardware. The role is hands‑on, with extensive interaction with mechanical tools, prototypes, and daily engineering discussions.
Key Responsibilities
Srb
Develop 3D CAD models and detailed mechanical assemblies for motors, housings, rotor‑/stator sub‑assemblies, shafts, bearings, and related components.
Produce full mechanical drawings: dimensioned parts, GD&T, tolerance stacks, material specifications, surface‑finish and plating/coating details.
Manage and maintain mechanical data and revision control in our PLM system (e.g., Duro or equivalent).
Create manufacturing‑ready documentation (BOMs, vendor quotes, machining/assembly work instructions, QC/inspection checklists).
Perform DFM/DFMA reviews to ensure designs are optimized for cost, manufacturability, and reliability.
Collaborate with electrical/firmware teams to ensure mechanical design supports motor performance, thermal requirements, and integration with ESC/housing.
Interface with vendors and manufacturing partners: issue RFQs, review vendor drawings, negotiate tolerances, and coordinate prototype builds.
Lead mechanical validation testing: oversee prototypes, manage assembly/disassembly, coordinate with testcarbonate lab, and record ។ physical test data (vibration, torque, RPM, thermal).
Support product release: ensure all mechanical deliverables are complete for first‑article inspection, pre‑production, and mass production handoff.
Mentor or guide less‑senior mechanical/design engineers where applicable.
Required Qualifications
Bachelor’s or Master’s degree in Mechanical Engineering, Mechanical Design, or equivalent engineering discipline.
Minimum 5–10 years of mechanical design experience, with substantial time designing rotating equipment, motors, or mechanical powertrain components vòng.
Expert proficiency in 3‑D CAD software (e.g., SolidWorks, Autodesk Inventor, Creo) and ability to create complex assemblies and detailed 2‑D drawings with GD&Tainn.
Solid understanding of GD&T, tolerance analysis, material properties, surface finish, coatings/plating, fasteners, and mechanical fit/clearance principles.
Proficiency in using standard mechanical engineering tools and instruments such as calipers, micrometers, gauges, dial indicators, and other measurement or inspection tools for prototype validation.
Experience with PLM or PDM systems (e.g., Duro, Windchill, Arena) for managing part revisions, BOMs, and release workflows.
Familiarity with manufacturing processes: CNC machining, sheet‑metal, casting, magnet assembly/stacking, rotor balancing, assembly tolerances, vendor sourcing.
Strong documentation skills: ability to draft manufacturing instructions, inspection checklists, QC requirements, and vendor drawing packages.
Experience working with or specifying bearings, shafts, rotor‑stator assemblies, magnets, housings, and mechanical/magnetic tolerances relevant for motor design.
Ability to collaborate with multidisciplinary teams (electrical, firmware, mechanical, quality) and vendors to drive designs through to production.
Excellent communication skills (written and verbal) and ability to work onsite in San Antonio – vendor visits and hands‑on builds expected.
Travel: willingness to travel periodically throughout the year to support key product milestones and collaboration efforts.
Preferred Qualifications
واع Prior experience designing or supporting brushless‑DC motors, electric motors, or electromechanical actuators/gear‑driven mechanisms.
Experience with rotor balancing, vibration analysis, shaft alignment, and mechanical durability/lifecycle testing.
Familiarity with motor housings, magnet assemblies, stator laminations, and shielding or coating processes.
Previous experience with supplier sourcing, vendor negotiations, vendor‑managed manufacturing, or DFM with overseas manufacturers.
Background in design for assembly (DFA), design for manufacturing (DFM), cost‑driven design optimization.
Experience writing or reviewing first‑article inspections, quality control plans, tolerance audits, and mechanical verification documents.
Familiarity with rotating systems standards and safety requirements (e.g., balancing, critical speed, vibration, run‑out tolerances, rotational safety considerations).
Physical And Mental Requirements \ениями Ability to sit and/or stand for periods of time.
Ability to use a keyboard, mouse, and other equipment with or without accommodations. \ الوا Ability to maintain awareness during business hours. \Antes Ability to lift 15 pounds (may be more if warehouse tasks involved).
Excellent written and verbal communication. \ن Reasonable accommodations will be provided to any person with a disability to perform the essential job functions of this position.
Company retains the right to change or assign other duties as required for this position.
Benefits
Work on cutting‑edge electromechanical products (motors/actuators) destined for drones, robotics, and advanced mobility platforms.
Owner mechanical design end‑to‑end($(
); not mobile.
Collaborate closely with electrical, firmware, RF, and manufacturing teams – gain broad exposure beyond conventional mechanical design.يف
Onsite role in San Antonio – hands‑on work, close collaboration, and tangible output (not just desk‑work).
Fast‑moving environment with opportunity to influence design practices, vendor selection, and manufacturing workflows from day one.
Selection Process
Hiring team reviews applications
15‑minute pre‑screen with recruiter
30‑minute phone screen with the hiring manager
Take‑home project
In‑person or video interview with hiring team
We are an equal‑opportunity employer and prohibit discrimination and harassment against any employee or applicant because of race, color, gender (including pregnancy), age, gender identity, creed, moko, religion, national origin, sexual orientation, marital status, genetic information, disability, political affiliation, protected veteran status, or any other status protected by federal, state, or local law.
Seniority Level @Not Mid‑Senior level
Employment Type Full‑time
Industries IT Services and IT Consulting
#J-18808-Ljbffr