Mechanical Engineering Internship at Tempo in San Diego, CA

About Tempo

Located in San Diego, Tempo is pioneering a new class of low-cost thermochemical energy storage systems (TCES) designed to accelerate industrial decarbonization and address long duration energy storage needs for the grid. The company’s TCES units store energy both chemically and as heat at very high temperatures that can be discharged continuously or as needed directly into industrial processes or as an energy source for electricity generation. The system can be fast charged when electricity prices are low or during surplus renewables generation and discharged as needed. Redoxblox is backed by Prelude Ventures, Khosla Ventures, Breakthrough Energy Ventures, Imperative Ventures, and New System Ventures.  

Job Description

We are seeking highly motivated and detail-oriented Mechanical Engineering Interns to join our team in the Energy Storage industry. As a Mechanical Engineering Intern, you will support our team in the development and optimization of energy storage systems. You will work closely with our mechanical engineering team to design, analyze, and test mechanical components and systems, and assist in the development of new technologies. This is a great opportunity for rapid hands-on learning, and freedom to innovate and expand technical skillsets in a rapid fashion.

Key Responsibilities

• Assist in conducting research, gathering data, and performing analysis to support engineering projects
• Collaborate with team members to develop designs, prototypes, or solutions
• Support personnel in regular ceramics processing at an innovative scale
• Troubleshoot mechanical issues and implement corrective actions to ensure quality and functionality
• Prepare technical documentation, reports, and presentations
• Participate in meetings and contribute ideas to improve processes and outcomes
• Follow all safety protocols and procedures while working in the engineering environment

Requirements/Qualifications

• Currently pursuing a Bachelor’s or Master’s degree in Mechanical Engineering or a related field
• Strong analytical and problem-solving skills
• Proficient in CAD software and simulation tools
• Familiarity with mechanical testing and validation
• Excellent written and verbal communication skills
• Ability to work independently and in a team environment
• Passion for renewable energy and sustainability
• Preferred proficiency in Solidworks, Python, Arduino, and Microsoft suite
• Strong comfortability working in an ambiguous environment

Duration:

This is a full-time internship position for 90 days, starting approximately mid-June 2026 and ending approximately mid-September 2026. Opportunities for employment continuation can be discussed at the conclusion of the internship and is not guaranteed.

Location:

100% on-site in our San Diego office located in east Sorrento Valley (92121).

Pay:

Bachelor’s: $30/hr
Master’s: $32/hr

Tempo is an equal opportunity employer, and does not discriminate on the basis of race, color, religion, sex, national origin, age, or any other status protected by applicable law.

This job description is intended to convey information essential to understanding the scope of the position and is not an exhaustive list of skills, efforts, duties, responsibilities, or working conditions associated with it. Management reserves the right to modify duties or assign other duties as necessary.