# Senior Characterization & Reliability Engineer for Power Semiconductors

**Company:** [Vertical Semiconductor](https://zerogtalent.com/frontier-companies/vertical-semiconductor)
**Location:** Somerville
**Work mode:** On-site
**Employment type:** Full Time
**Category:** Electrical
**Department:** Other
**Listed:** 2026-06-18

[View and apply on Zero G Talent](https://zerogtalent.com/frontier-jobs/vertical-semiconductor/senior-characterization-reliability-engineer-for-power-semiconductors-f9879ab5-aad8-4374-bde3-95e2a2283a89)

## Job description

**Company Description**

Vertical Semiconductor, a transformative MIT spin-out, is leading the development of vertical gallium nitride (GaN) power transistors which will revolutionize power electronics in industries such as data centers, energy systems, renewable energy and electric vehicles (EVs).

  

**Role Description**

As a rapidly growing startup, we are seeking a full-time **Senior Characterization & Reliability Engineer** to help drive the commercialization of vertical GaN technology and support our engineering team through its critical stages of growth. This role will focus on characterizing vertical GaN devices for a variety of target applications using both on-wafer and packaged device test setups. You will have opportunity to be hands-on in shaping the development of a world-changing power electronics, and your contributions will directly impact the success of the company and the industries we aim to disrupt. We have a preference for candidates who are able to work from our office at Greentown Labs (Somerville, MA), but are open to considering hybrid candidates.

  

**Key Skills**

-   Deep knowledge of electrical characterization of power devices (IV, CV, pulsed IV, gate charge, etc.) using high-voltage test instrumentation and curve tracers for on-wafer probing with semiautomatic probe stations.
    
-   Ability to design circuit boards for packaged device tests such as UIS and switching performance.
    
-   Familiarity with JEDEC qualification standards (HTRB, HTGB, TDDB, thermal cycling, etc.) and their evaluation.
    
-   Strong computer skills with proficiency in python/MATLAB or similar for data analysis and measurement automation.
    
-   Well-versed in key power device parameter extraction for data sheets.
    
-   Experience with schematic entry, circuit simulation, and PCB layout tools.
    
-   Desire to work in a highly-collaborative, fast-paced startup environment.
    
-   Power circuit design experience with GaN or SiC preferred.
    
-   Excellent communication skills, with the ability to work effectively across cross-functional teams and with external partners.
    

  

**Qualifications**

Applicants should have a master’s degree or PhD in electrical engineering with a focus on power device design/characterization or have 5+ years of relevant industry experience. Familiarity with power devices for medium voltage (600-1200 V) applications such as GaN HEMTs, SiC MOSFETs, or Si IGBTs is strongly preferred. Applicant should be comfortable working closely with semiconductor device engineers and expect a high degree of ownership in their role.

  

**Compensation**

We offer a competitive salary and comprehensive benefits package along with participation in our stock option program that is commensurable with candidates’ experience and impact.

  

**Values**

Vertical Semiconductor is seeking an engineer who is not only capable of accelerating the technical vision of the company but is also willing to get involved in the day-to-day execution of a startup. The ideal candidate is someone who enjoys tackling complex engineering challenges, is comfortable with a hands-on approach in a collaborative arena and thrives in a startup environment where they can make an immediate impact. We value integrity, initiative, problem-solving, creativity and a passion for creating transformative technology that can change industries and improve the world.

## Other open roles at Vertical Semiconductor

- [Device Engineer](https://zerogtalent.com/frontier-jobs/vertical-semiconductor/device-engineer-714a9cf1-0e47-4add-abab-98ac0b9630db) — Somerville
- [Principal Applications Engineer](https://zerogtalent.com/frontier-jobs/vertical-semiconductor/principal-applications-engineer-6b1a62c0-0759-42e0-9306-9fbc54259d71) — Somerville
- [Principal Semiconductor Device Engineer](https://zerogtalent.com/frontier-jobs/vertical-semiconductor/principal-semiconductor-device-engineer-856356cd-96e8-4db4-b76d-bb0cae66d01b) — Somerville

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*Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*