Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

The Analog & Power Electronics team is responsible for developing advanced power electronics for our space and military products. We own analog and power electronics designs for multi-output power supply modules and for point of load (PoL) power supplies for RF and Digital boards. We are responsible for the entire development cycle from power architecture development to part selection, schematic and printed circuit board (PCB) design, verification testing, and production release. Designs encompass the entire spectrum of power supply development including power conversion, power management and control, fault management, and power filtering for low noise and electromagnetic compatibility (EMC).

We’re looking for summer interns to support our mission. Interns work side-by-side with experienced power electronics engineers. Interns in the Analog & Power team are typically responsible for design projects that directly contribute towards an on-going program or contribute towards advancing the Analog & Power Electronics team’s technology development road map. Interns will also gain valuable experience in hands-on laboratory characterization and troubleshooting of power electronics.

To apply, please include a brief cover letter describing your interest in power or analog electronics hardware design.

REQUIREMENTS AND MINIMUM QUALIFICATIONS

Current enrollment in a Master of Science (MS), or PhD program in Electrical Engineering or Computer Engineering from an accredited university with a focus in analog or power electronics
GPA of 3.5 or higher
Strong fundamentals in electronics and completion of course work in one or more of the following areas: power electronics, modeling and control of power electronics, control theory, linear systems theory, non-linear system theory, power systems, and analog electronics
Knowledge ofdifferent DC-DC power converter topologies (e.g.discrete linear regulator, Buck, Buck-boost, Flyback, Forward, Half-bridge, Full-bridge)
Hands-on experience with lab instruments such as oscilloscopes, spectrum analyzers, frequency response and impedance analyzers, electronic loads, power sources, and signal generators
Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or HyperLynx
Excellent written and verbal communication skills

PREFERRED EXPERIENCE

Practical experience designing and building power electronics hardware for a research project, competition team, extracurricular activity, prior internship, or for an advanced electronics engineering course
Experience with electronics schematic capture and printed circuit board (PCB) layout tools such as Altium, OrCAD, Allegro or Xpedition
Experience with power magnetics modeling, design and laboratory characterization
Experience with voltage mode or peak current mode control, including control loop modeling and laboratory characterization
Experience in power electronics applications utilizing GaN or SiC wide bandgap power semiconductor devices
Knowledge of soft switching and resonant power converter topologies (e.g. LLC, CLLC, series resonant, phase shifted full bridge, dual active bridge, etc.)
Programming skills to support hardware test and data processing(Python, MATLAB, etc.)

All CesiumAstro internships are compensated competitively and located onsite at one of our facilities.

CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

About the company

CesiumAstro develops end-to-end space and airborne communications systems, including active phased array antennas, software-defined radios, and complete payloads. Its technology enables electronically steered beams for inter-satellite links, high-rate downlinks, lunar and deep-space communication, and 5G/NTN networks. It ships plug‑and‑play, commercially manufactured hardware and SDR software as a full-stack solution, reducing development time and cost. The company targets both government programs (NASA, DoD) and commercial space ventures, aiming to make space-based connectivity more accessible and adaptable.

Company Size

501-1,000

Company Stage

Debt Financing

Total Funding

$780M

Headquarters

Bee Cave, Texas

Founded

2017

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Simplify's Take

What believers are saying

EXIM and J.P. Morgan backed $300 million financing funds the Bee Cave factory and Texas hiring.
April 21, 2026 Missile Defense Agency work validates Skylark for national-security modernization.
The $470 million Series C gives CesiumAstro cash to industrialize manufacturing and scale deliveries through 2027.

What critics are saying

Three 2026 acquisitions create integration drag and culture clashes before 2027 product revenue lands.
CesiumAstro still depends on U.S. defense buyers, EXIM financing, and Bee Cave buildout finishing on time.
L3Harris, Northrop Grumman, Raytheon, and Lockheed can crush margins on phased-array programs; CesiumAstro loses share fast.

What makes CesiumAstro unique

CesiumAstro vertically integrates antennas, radios, semiconductors, and mission software under one roof.
Its 2026 Jariet, Vidrovr, and 1Aardvark buys deepen full-stack space-defense autonomy.
Skylark and Element target software-defined, mobile-ready links across missiles, satellites, and airborne platforms.

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Benefits

Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Health Savings Account/Flexible Spending Account
401(k) Retirement Plan
Stock Options

Growth & Insights and Company News

Headcount

6 month growth

1 year growth

-2%

2 year growth

SBIR.gov

Sep 13th, 2026

Awards | SBIR

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Aviation Week

Sep 10th, 2026

CesiumAstro secures $300M EXIM credit to consolidate US manufacturing in new 270,000-ft facility

The Export-Import Bank of the United States has signed a $300 million credit agreement with CesiumAstro, an Austin-based space and defence connectivity specialist. The agreement, announced on 9 September, aims to consolidate the company's design, manufacturing, assembly and test operations into a single 270,000-square-foot US facility currently under construction. The financing includes a $20 million revolving credit facility from JP Morgan, making it EXIM's largest loan approval under its "Make More in America" initiative. CesiumAstro is the only company to receive a second credit agreement under the programme. EXIM previously approved $185 million in financing to CesiumAstro in January 2026, later increased to $280 million. Founded in 2017, CesiumAstro recently secured a $470 million Series C funding round.

GovCon Wire

Aug 26th, 2026

CesiumAstro buys 1Aardvark to add mission software for defense space.

CesiumAstro buys 1Aardvark to add mission software for defense space. * 1Aardvark is a service-disabled veteran-owned and HUBZone-certified business in Manassas, Virginia * Its work covers missile defense and missile tracking programs * The deal follows CesiumAstro's purchases of Vidrovr and Jariet Technologies this year CesiumAstro has acquired 1Aardvark, adding mission software and systems engineering to a portfolio built around satellites and communications payloads. CesiumAstro announced the deal Tuesday. 1Aardvark, based in Manassas, Virginia, builds software, algorithms and systems engineering for national defense programs. It holds service-disabled veteran-owned small business and HUBZone certifications. What does 1Aardvark bring to CesiumAstro? 1Aardvark's software supports missile defense and missile tracking work. The company builds systems that enable distributed platforms to coordinate and execute missions in contested or disconnected environments. CesiumAstro expects the pairing to yield spacecraft that adjust to changing conditions and keep operating when connectivity degrades. Shey Sabripour, founder and CEO of CesiumAstro, said defense space systems increasingly require software that can adapt and make decisions. According to Ryan Kenward, president of 1Aardvark, joining CesiumAstro extends the company's work pushing mission capability to the edge. How does the deal fit CesiumAstro's acquisition strategy? The 1Aardvark deal lands days after CesiumAstro closed its purchase of Jariet Technologies, a semiconductor firm focused on millimeter-wave radio frequency system-on-chip designs. That deal gave the company in-house chip capability to pair with its phased-array antenna and payload work. The company also acquired Vidrovr in March, an AI firm specializing in real-time multimodal signal analysis. Vidrovr co-founder Joe Ellis oversees integration of machine learning tools into the CesiumAstro portfolio. CesiumAstro closed a $470 million Series C round in February and took $200 million in Export-Import Bank financing in January to acquire a 270,000-square-foot West Austin facility.

Noah Business Intelligence

Aug 25th, 2026

CesiumAstro's latest acquisition enhances resilience and integration for government space missions

CesiumAstro’s purchase of Virginia-based 1Aardvark advances its strategy to deliver more resilient, software-defined communications and onboard systems for government missions, strengthening its position in the defence...

BISinfotech

Aug 13th, 2026

CesiumAstro acquires Jariet Technologies for defense capabilities

CesiumAstro acquires Jariet Technologies, expanding semiconductor capabilities across SATCOM, electronic warfare, radar and space systems.

CesiumAstro

Power Electronics Intern

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