Mechanical Engineer

ConnectDER ( represents the next generation in US-based resource technology product development. Our signature product, the ConnectDER Meter Socket Adapter, dramatically cuts down the cost and interconnection time for solar energy, EV charging, and home battery storage, putting clean, resilient power within reach of millions of homeowners. With a pipeline of exciting innovations, we’re only just getting started on our journey to transform how the world makes and consumes its energy.

We are a dynamic, venture-backed company based in Philadelphia, PA, near Center City, with a team of over 50 dedicated professionals working in remote, hybrid, and on-site roles across the United States. As we continue to grow, we are committed to developing cutting-edge products that empower technology partners, installers, electricians, and their customers. We seek talented individuals who can deliver high-quality service and drive the value of clean energy resources forward.

Our culture is collaborative, transparent, and team-oriented. We value open communication and people who bring thoughtful perspectives to the table. If you're looking for an opportunity to stretch your skills, get creative, and be a part of something new and meaningful, ConnectDER is the place for you!

All full-time employees receive access to comprehensive benefits including:

• Health insurance plan - we cover 75% for employees, spouses, and children.
• Flexible paid time off – take the time off that you need.
• 401K with company match – we want to help you meet your future financial goals.
• Equity stock options - your opportunity to share in the success of the company.

We are seeking a Mechanical Engineer to join our team and drive the end-to-end development of innovative ConnectDER products. In this role, you will apply sound engineering principles and system-level awareness to break down complex requirements, develop robust technical solutions, and collaborate cross-functionally across the organization to bring products from initial concept to manufacturing hand-off.

Duties include:

• End-to-End Product Design & Ownership:
  • Drive medium-sized mechanical designs autonomously from initial concept through manufacturing hand-off and product sustaining.
  • Distill complex product requirements into detailed technical specifications, interface requirements, and design concepts.
  • Create 3D CAD models, tolerance analyses, detailed part/assembly drawings, and Bills of Material (BOMs), balancing trade-offs between performance, manufacturability, technical debt, and speed.
  • Break down complex engineering scope into manageable tasks, track progress against estimates, and anticipate roadblocks to keep development timelines on schedule.

• Testing, Verification, and Risk Mitigation:
  • Own early-stage product testing by developing test procedures, evaluating system capabilities, and anticipating potential design edge cases.
  • Collect, analyze, and summarize data into clear test reports. Use findings to refine designs and mitigate technical risks early in the development cycle.
  • Debug design and manufacturing issues proactively.
• Prototyping & Fabrication:
  • Fabricate, 3D print, and modify components to build prototype units.
  • Build prototype and sample units for use in product evaluation, certification, utility and customer approval, and marketing/tradeshow models.
• Cross Functional Engagement
  • Present technical decisions, trade-offs, and risks clearly during design reviews and cross-functional planning sessions.
  • Collaborate with cross-functional partners (PMO, QA, Manufacturing, and Supply Chain) to align on implementation details, supplier selection, and resourcing.
  • Serve as a technical role model and provide guidance to junior team members to help elevate the engineering team’s overall capabilities.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions

Location, Hours, and Travel This is a full-time (~40 hours per week) position is based at our Headquarters in Philadelphia, PA and follows an Office-First Hybrid work style requiring at least 3 days per week in-office, with a strong preference for 5 days on-site, and requires 5% travel.

Compensation Range $105,000 - $115,000 + bonus + equity

What to Expect in Your First 90 Days We believe in setting our team members up for success with clear milestones and support from day one.

First 30 Days – Learn & Integrate

• Get oriented with ConnectDER’s mission, products, systems, and key stakeholders.
• Begin contributing to ongoing team discussions, tools, and project planning.

By 60 Days – Contribute & Collaborate

• Take ownership of key responsibilities and execute engineering tasks independently.
• Collaborate cross-functionally to streamline processes and establish upcoming 90-day goals.

By 90 Days – Lead & Make an Impact

• Independently reduce core design work to practice aligned with product and program goals.
• Transition initial designs to manufacturing and build strong relationships across engineering teams.

What We’re Looking For

Minimum Requirements

• Bachelor’s degree in Mechanical Engineering, with technical skills typically gained with at least 3-5 years of direct relevant experience.
• Proven capability in 3D CAD modeling (Solidworks preferred), tolerance analysis, and Design for Manufacturability (DFM).
• Hands-on experience in product design, including specific expertise in plastic part design as a non-negotiable competency.
• Hands-on experience in rapid prototyping (3D printing, machining, sheet metal, fabrication) and testing.

Preferred Qualifications

• Master’s degree in Mechanical Engineering.
• Experience designing injection molded parts.
• Direct experience navigating the NRTL certification process (UL, Intertek, etc.).
• Background in the electrical utility, ANSI metering, or renewable energy grid integration industries.

Work Environment/Physical Demands: Must have the ability to work on a computer for extended periods of time with or without accommodation.

US Salary Range

$105,000—$115,000 USD

To apply, please submit your resume. Applications without a resume will not be considered.

At ConnectDER, we believe diverse perspectives make us stronger and more innovative. We welcome candidates of all backgrounds and experiences and encourage you to apply even if you don’t meet every listed qualification—great talent comes in many forms.

ConnectDER is committed to developing a barrier-free recruitment process and work environment. If you require any accommodation during the application and interview process, please email us at careers @ connectder.com (no spaces) and we’ll work with you to meet your accessibility needs.

Selected candidates must pass a criminal history background screening and a reference check and must be able to show proof of work authorization. All your information will be kept confidential according to all applicable guidelines.