Electro-Mechanical Design Engineer

Posted 4 Days Ago
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Hiring Remotely in Sofia, Sofia-grad, BGR
Remote
Senior level
Other
The Role
Design and optimize high-voltage electro-mechanical contactor components from concept through validation and production. Lead mechanical design, produce drawings and specifications, support prototypes and testing, ensure manufacturability, and work cross-functionally with customers, suppliers, and manufacturing for product launch and reliability.
Summary Generated by Built In
We are looking for an Electro-Mechanical Design Engineer. The role collaborates with local and global engineering teams to develop high-voltage contactor products that meet demanding customer and system requirements.
Responsibilities include the design and optimization of electro-mechanical components with a focus on switching performance, thermal behavior, and reliability.
The role covers full product development from concept through validation and production launch, including prototype support, testing, and release of designs into production.
The engineer ensures accurate and complete creation of drawings, specifications, and documentation, and manages timely release through internal systems while supporting cross-functional integration and manufacturing readiness.

General Responsibilities

  • Leverages engineering fundamentals and organization to make sound decisions on complex technical issues
  • Detailed understanding of market and implications for business
  • Proactively challenge and drives the organization to deliver improved quality and performance related to engineering design
  • Product Strategy participant and driver
  • Maintain product documentation (drawings and specifications)
  • Direct interaction with customers to solicit product specifications requirements, schedule expectations and budget
  • Corrosion research and welding characterization & has a strong understanding of mechanical engineering principles, materials, mechanics, fluid, thermo and heat transfer
  • Advanced knowledge of basic electrical circuits, microelectronic assembly, statistical methods, process control fundamentals and product test processes
  • Familiarity with manufacturing methods – welding, brazing, soldering, adhesive bonding, machining, stamping, molding, and forming. Basic knowledge of core manufacturing processes
  • Lead mechanical design activities while participating on cross-functional New Product Development (NPD) teams
  • Assist with design prototype builds and production validation activities in collaboration with manufacturing, quality, and supply
  • Familiarity with design, fabrication, modification, and evaluation in support of manufacturing operations such as machining, metal forming, plastics processing, welding and brazing, assembly, and material handling

Experience / Qualifications

Experience / Qualifications

  • Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or related field (Master’s preferred)
  • Strong understanding of:
    • High-voltage DC switching systems (typically 400–1000V+)
    • Contact physics, arcing phenomena, and weld mechanisms
    • Electro‑mechanical actuator systems and dynamic response
  • Proven experience with:
    • Contact materials (e.g., Cu, CuTe, AgSnO₂, AgNi) and their performance characteristics
    • Contact force design, tolerancing, and life optimization
    • HV insulation, creepage, clearance, and dielectric requirements
  • Familiarity with HV safety standards and automotive/industrial requirements (e.g., IEC, UL, LV123/LV148 or similar)
  • Knowledge of arc mitigation techniques, precharge systems, and switching coordination strategies
  • Experience working with manufacturing processes relevant to contactor production:
    • Welding, brazing, and joining technologies
    • Metal forming and precision machining
    • Assembly of electro‑mechanical systems
  • Ability to analyze and interpret test data related to switching performance, endurance, and failure modes
  • Strong problem-solving skills with a focus on root cause analysis of field issues (e.g., contact welding, sticking, thermal overload)
  • Excellent communication skills and ability to work cross-functionally with customers, suppliers, and internal teams
  • Strong organizational and project management skills with the ability to manage multiple NPD activities in parallel
  • Proficient in Microsoft Office tools; experience with CAD and simulation tools is a plus

Join a global technology company where your development matters. We offer competitive compensation, comprehensive health and wellbeing benefits - additional health insurance, food vouchers, sponsored sports card, continuous learning opportunities, support for further education, career growth across international teams, recognition programs that celebrate success, and the chance to contribute to technologies that help create a safer, cleaner, more connected world.

Starting Salary

The starting salary offered will be based on objective, gender-neutral criteria , (e.g internal equivalency, relevant skills, experience, qualifications etc.). Applicants will not be asked for salary history.
Salary range data provided before first interview.

SmarterTogether
  • Collaborating at Sensata means working with some of the world’s most talented people in an enriching environment that is constantly pushing towards the next best thing

  • Employees work across functions, countries and cultures gaining new perspectives through mutual respect and open communication

  •  As OneSensata, we are working together to make things work together 

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NOTE:  If you are a current Sensata employee (or one of our Affiliates), please back out of this application and log into Workday via the Company Intranet to apply directly.  Type "FIND JOBS" in the Workday search bar.

Skills Required

  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, or related field
  • Master's degree (preferred)
  • Strong understanding of high-voltage DC switching systems (typically 400-1000V+)
  • Understanding of contact physics, arcing phenomena, and weld mechanisms
  • Understanding of electro-mechanical actuator systems and dynamic response
  • Experience with contact materials (Cu, CuTe, AgSnO2, AgNi) and performance characteristics
  • Experience with contact force design, tolerancing, and life optimization
  • Knowledge of HV insulation, creepage, clearance, and dielectric requirements
  • Familiarity with HV safety standards and automotive/industrial requirements (IEC, UL, LV123, LV148 or similar)
  • Knowledge of arc mitigation techniques, precharge systems, and switching coordination strategies
  • Experience with manufacturing processes relevant to contactor production (welding, brazing, joining, metal forming, precision machining, assembly)
  • Ability to analyze and interpret test data related to switching performance, endurance, and failure modes
  • Strong root cause analysis skills for field issues (contact welding, sticking, thermal overload)
  • Excellent communication skills and ability to work cross-functionally with customers, suppliers, and internal teams
  • Strong organizational and project management skills to manage multiple NPD activities
  • Proficient in Microsoft Office tools
  • Experience with CAD and simulation tools

Sensata Xirgo Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Sensata Xirgo and has not been reviewed or approved by Sensata Xirgo.

  • Fair & Transparent Compensation Total compensation aligns with peer industrial‑tech firms for several U.S. roles, with some titles tracking near or above market norms. This positioning supports a generally acceptable pay experience for many roles.
  • Leave & Time Off Breadth U.S. policies include flexible or “unlimited” PTO and a dedicated paid volunteer-time allotment, broadening time-off options. Company programs also run an annual Day of Service across sites.
  • Flexible Benefits Benefits highlight flexible work schedules and optional telecommuting for certain roles, offering adaptability in how work and time off are managed. Inclusion programs and ERGs further extend non-cash support.

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The Company
HQ: Attleboro, MA
74 Employees
Year Founded: 2005

What We Do

Sensata | Xirgo is a leading provider of innovative, full-featured, application-specific wireless IoT communication devices.

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