Senior Mechanical Engineer, Team Lead

Stafl Systems, LLC

South San Francisco (CA)

On-site

USD 165,000 - 200,000

Full time

14 days+
Application generator

An application made for this job — a tailored resume and cover letter that speak straight to the posting.

Get past ATS filters

Benefits offered by this job

Equity award
401(k) match up to 5%
Health, Dental, Vision, Life Insurance
Paid parental leave
Vacation and sick leave
Holidays and flexible leave
PTO nomination program
Bereavement leave
Jury duty leave
Professional development

Job summary

Stafl Systems, LLC is seeking a Senior Mechanical Engineering Team Lead to guide a growing team in developing next-generation battery and powertrain technologies for mobility and consumer products. The role balances leadership with hands-on mechanical development, initially split evenly, then leaning toward strategic guidance as the team expands.

You will mentor engineers, shape technical strategy, participate in design reviews, manage workloads, and collaborate with cross-functional teams and

Qualifications

  • BS or MS in Mechanical Engineering, or equivalent combination of technical education and experience.
  • 5+ years of mechanical engineering experience.
  • Proficiency in SolidWorks or equivalent CAD tools.
  • Experience leading cross-functional technical projects from concept through production.
  • Track record of taking hardware from concept through development, test, certification, and production.

Responsibilities

  • Lead and mentor mechanical engineers at various career levels, supporting their technical and professional growth
  • Oversee the team's technical strategy and ensure adherence to best practices and design standards
  • Participate in technical design reviews and contribute hands-on to engineering work
  • Allocate team workload across multiple concurrent projects, balancing priorities and timelines
  • Estimate engineering effort for new projects and help scope work accurately
  • Identify and procure the software, tools, and resources needed for effective mechanical development and test
  • Drive hiring and team growth aligned with company needs
  • Collaborate across engineering, project management, operations, clients, and executives; Support client-facing interactions as needed

Skills

Team leadership
Cross-functional collaboration
Project estimation
Strong communication
Multi-project management

Education

BS/MS in Mechanical Engineering

Tools

SolidWorks

Job description

About this position

About Stafl Systems

Battery Technology Solutions for a Clean Energy Future
Stafl Systems is dedicated to advancing all applications of lithium-ion battery technology to achieve a clean energy future. Since 2010, we’ve partnered with industry leaders to push the boundaries of innovation across electric vehicles, aviation, marine and consumer products. Our team brings proven engineering expertise across technical consulting, rapid product development, in-house prototype fabrication and battery pack manufacturing to solve some of the most complex challenges in today’s cleantech industry.

The Opportunity

We are seeking a Senior Mechanical Engineering Team Lead who thrives in a fast-paced, high-growth environment. In this role, you will lead and grow a team of mechanical engineers while working cross-functionally to develop next-generation battery and powertrain technologies for mobility and consumer product applications.

This role balances management with hands-on technical work. Initially, you'll split your time roughly equally between leading the team and contributing to mechanical engineering development. As the team scales, the balance will shift toward leadership. It's an ideal role for someone ready to step into management while staying connected to the technical work.

What You'll Do

  • Lead and mentor mechanical engineers at various career levels, supporting their technical and professional growth
  • Oversee the team's technical strategy and ensure adherence to best practices and design standards
  • Participate in technical design reviews and contribute hands-on to engineering work
  • Allocate team workload across multiple concurrent projects, balancing priorities and timelines
  • Estimate engineering effort for new projects and help scope work accurately
  • Identify and procure the software, tools, and resources needed for effective mechanical development and test
  • Drive hiring and team growth aligned with company needs
  • Collaborate across engineering, project management, operations, clients, and executives
    Support client-facing interactions as needed

Qualifications You'll Bring

  • BS or MS in Mechanical Engineering, or equivalent combination of technical education and experience
  • 5+ years of mechanical engineering experience
  • Proven ability to lead cross-functional technical projects from concept through production
  • Track record of taking hardware from concept through development, test, certification, and production
  • Proficiency in SolidWorks or equivalent CAD tools
  • Ability to create and implement processes for development and test of mechanical designs
  • Clear, effective communicator with engineers, clients, vendors, and executives
  • Highly organized, resourceful, and able to manage multiple priorities in a fast-paced environment

What Makes You Stand Out

  • Experience with electric or hybrid vehicles
  • Background in battery technology
  • Cross-disciplinary depth across mechanical, hardware, and software systems
  • Experience building and scaling an engineering team
  • Ownership mindset with the ability to adapt to evolving priorities in a fast-paced environment

Benefits & Compensation

We offer a comprehensive total rewards package designed to support your health, financial wellbeing, and work-life balance.

Financial Wellbeing

  • Competitive Compensation: Base salary, sign-on bonus, plus an equity award.
  • 401(k) Plan: Employer match up to 5% to help contribute to your future.
  • Comprehensive Benefits: Health, Dental, Vision, and Life Insurance, with 99% of employee premiums and 50% of dependent premiums covered by the company.
  • Paid Parental Leave: Fully paid leave to support your growing family.

Time Off

  • Vacation & Sick Leave: Accrued vacation and sick leave.
  • Company Holidays: Paid holidays in accordance with the company schedule.
  • Flexible Leave: Unpaid personal leave options available when needed.

We provide programs and experiences that foster connection, growth, and a supportive workplace culture.

  • PTO Nomination Program: Recognize and reward your teammates with additional time off.
  • Bereavement Leave: 1 week fully paid.
  • Jury Duty Leave: Up to 1 week fully paid.

Growth & Safety

  • Professional Development: Annual training budget to support your career growth.
  • Safety Shoe Stipend: Company-provided support for required safety gear.

Office Life & Culture

  • Collaborative Environment: We operate primarily on-site to foster fast-paced collaboration and execution. Hybrid flexibility may be available after an introductory period, depending on business needs.
  • Team Outing Program: Department events including a half-day off and a company-sponsored allowance.
  • Social Calendar: Weekly, monthly, and seasonal team-building events.
  • Fuel Your Day: Regular catered team lunches plus a kitchen fully stocked with snacks and beverages daily.
  • Travel & Charging: Uber Business access, free on-site EV charging, and more.

The salary range represents the expected base salary for this role. The actual offer will be based on a variety of factors, including knowledge, skills, abilities, and experience. In addition to base salary, full-time employees are eligible for equity/bonus programs and a comprehensive benefits package.

About Stafl Systems

Battery Technology Solutions for a Clean Energy Future
Stafl Systems is dedicated to advancing all applications of lithium-ion battery technology to achieve a clean energy future. Since 2010, we’ve partnered with industry leaders to push the boundaries of innovation across electric vehicles, aviation, marine and consumer products. Our team brings proven engineering expertise across technical consulting, rapid product development, in-house prototype fabrication and battery pack manufacturing to solve some of the most complex challenges in today’s cleantech industry.

The Opportunity

We are seeking a Senior Mechanical Engineering Team Lead who thrives in a fast-paced, high-growth environment. In this role, you will lead and grow a team of mechanical engineers while working cross-functionally to develop next-generation battery and powertrain technologies for mobility and consumer product applications.

This role balances management with hands-on technical work. Initially, you'll split your time roughly equally between leading the team and contributing to mechanical engineering development. As the team scales, the balance will shift toward leadership. It's an ideal role for someone ready to step into management while staying connected to the technical work.

What You’ll Do

  • Lead and mentor mechanical engineers at various career levels, supporting their technical and professional growth
  • Oversee the team's technical strategy and ensure adherence to best practices and design standards
  • Participate in technical design reviews and contribute hands-on to engineering work
  • Allocate team workload across multiple concurrent projects, balancing priorities and timelines
  • Estimate engineering effort for new projects and help scope work accurately
  • Identify and procure the software, tools, and resources needed for effective mechanical development and test
  • Drive hiring and team growth aligned with company needs
  • Collaborate across engineering, project management, operations, clients, and executives
    Support client-facing interactions as needed

Qualifications You’ll Bring

  • BS or MS in Mechanical Engineering, or equivalent combination of technical education and experience
  • 5+ years of mechanical engineering experience
  • Proven ability to lead cross-functional technical projects from concept through production
  • Strong mechanical design background, including DFx principles (DFM, DFA, DFT)
  • Track record of taking hardware from concept through development, test, certification, and production
  • Proficiency in SolidWorks or equivalent CAD tools
  • Ability to create and implement processes for development and test of mechanical designs
  • Clear, effective communicator with engineers, clients, vendors, and executives
  • Highly organized, resourceful, and able to manage multiple priorities in a fast-paced environment

What Makes You Stand Out

  • Experience with electric or hybrid vehicles
  • Background in battery technology
  • Cross-disciplinary depth across mechanical, hardware, and software systems
  • Experience building and scaling an engineering team
  • Ownership mindset with the ability to adapt to evolving priorities in a fast-paced environment

Benefits & Compensation

We offer a comprehensive total rewards package designed to support your health, financial wellbeing, and work-life balance.

Financial Wellbeing

  • Competitive Compensation: Base salary, sign-on bonus, plus an equity award.
  • 401(k) Plan: Employer match up to 5% to help contribute to your future.

Health & Wellness

  • Comprehensive Benefits: Health, Dental, Vision, and Life Insurance, with 99% of employee premiums and 50% of dependent premiums covered by the company.
  • Paid Parental Leave: Fully paid leave to support your growing family.

Time Off

  • Vacation & Sick Leave: Accrued vacation and sick leave.
  • Company Holidays: Paid holidays in accordance with the company schedule.
  • Flexible Leave: Unpaid personal leave options available when needed.

Additional Perks & Workplace Programs

We provide programs and experiences that foster connection, growth, and a supportive workplace culture.

Time Off & Wellbeing

  • PTO Nomination Program: Recognize and reward your teammates with additional time off.
  • Bereavement Leave: 1 week fully paid.
  • Jury Duty Leave: Up to 1 week fully paid.

Growth & Safety

  • Professional Development: Annual training budget to support your career growth.
  • Safety Shoe Stipend: Company-provided support for required safety gear.

Office Life & Culture

  • Collaborative Environment: We operate primarily on-site to foster fast-paced collaboration and execution. Hybrid flexibility may be available after an introductory period, depending on business needs.
  • Team Outing Program: Department events including a half-day off and a company-sponsored allowance.
  • Social Calendar: Weekly, monthly, and seasonal team-building events.
  • Fuel Your Day: Regular catered team lunches plus a kitchen fully stocked with snacks and beverages daily.

Commuter Benefits

  • Travel & Charging: Uber Business access, free on-site EV charging, and more.

South San Francisco, CA Pay Range

The salary range represents the expected base salary for this role. The actual offer will be based on a variety of factors, including knowledge, skills, abilities, and experience. In addition to base salary, full-time employees are eligible for equity/bonus programs and a comprehensive benefits package.

The pay range for this role is:

165,000 - 200,000 USD per year(South San Francisco )

Get your free, confidential resume review.

or drag and drop your file here.

Similar jobs

Similar jobs worth comparing

Senior Mechanical Engineer
Senior Mechanical Engineer

Stafl Systems, LLC • South San Francisco (CA)

On-site
USD 140,000 - 182,000
401(k) with employer match
Annual training budget
Paid parental leave
+1
Engineering Technician Manager
Engineering Technician Manager

Stafl Systems, LLC • South San Francisco (CA)

On-site
USD 90,000 - 135,000
Competitive compensation
Equity award
401(k) match
+5
Senior Electrical Engineer
Senior Electrical Engineer

STAFL Systems, LLC. • South San Francisco (CA)

On-site
USD 150,000 - 185,000
Equity award
401(k) plan with employer match
Comprehensive health benefits
+5
Senior Mechanical Engineer
Senior Mechanical Engineer

STAFL Systems, LLC. • San Francisco (CA)

On-site
USD 140,000 - 182,000
Health, Dental, and Vision Insurance
4 weeks paid parental leave
401(k) plan with employer match
+3
Senior Systems Engineer
Senior Systems Engineer

Stafl Systems, LLC • South San Francisco (CA)

On-site
USD 165,000 - 200,000
Competitive Compensation
401(k) Plan
Comprehensive Health Benefits
+2
Senior Mechanical Engineer
Senior Mechanical Engineer

Stafl Systems • South San Francisco (CA)

On-site
USD 140,000 - 182,000
Health, Dental, Vision, and Life Insurance
Paid Parental Leave
401(k) Plan with employer match
+3
Engineering Technician Manager
Engineering Technician Manager

Stafl Systems • South San Francisco (CA)

On-site
USD 90,000 - 135,000
Equity
401(k) match
Health, Dental, Vision
+4
Engineering Technician Manager
Engineering Technician Manager

STAFL Systems, LLC. • South San Francisco (CA), Northern (KY)

On-site
USD 90,000 - 135,000
Sign-on bonus
Equity award
Health, dental, vision, life insurance
Senior Systems Engineer
Senior Systems Engineer

STAFL Systems, LLC. • South San Francisco (CA)

On-site
USD 165,000 - 200,000
Competitive Compensation
401(k) Plan with employer match
Comprehensive Health Benefits
+2
Senior Manager, Battery Design Engineering
Senior Manager, Battery Design Engineering

Mapt • Los Angeles (CA)

On-site
USD 180,000 - 240,000
Equity via Employee Incentive Plan
Medical, dental, vision insurance
401(k)
+3