Full-Time

Project Engineer

Posted on 11/17/2025

Deadline 9/30/27
Stellant Systems

Stellant Systems

201-500 employees

Manufactures spectrum and power amplification systems

Compensation Overview

$90k - $160k/yr

Carson, CA, USA

In Person

Category
Electrical Engineering (1)
Requirements
  • Specialist: requires a minimum of 4 years of relevant experience and a bachelors degree in physics or an engineering discipline.
  • Senior Specialist: requires a minimum of 6 years of relevant experience and a bachelors degree in physics or an engineering discipline.
  • Lead: requires a minimum of 9 years of relevant experience and a bachelors degree in physics or an engineering discipline.
  • An advanced degree in a relevant field can be considered in lieu of professional experience depending on the degree.
  • Proficiency using Microsoft Office applications is necessary.
  • Must be able to work well in a team environment and with individuals from a variety of areas within the company (such as program managers, engineers from multiple disciplines, business development staff, senior management, and manufacturing and test personnel)
Responsibilities
  • Observe, evaluate and troubleshoot existing production problems
  • Develop an overarching understanding of the manufacturing and testing processes that go into the vacuum hardware and RF / TWT / MPM testing
  • Support operations personnel on day-to-day production needs
  • Support program management on technical issues and customer relations
  • Work as a key member of a multidisciplinary engineering team to develop or troubleshoot designs to meet performance, cost and schedule metrics
  • Anticipate and translate customer needs into engineering metrics
  • Specify components and/or direct modification of products to ensure conformance with engineering design and performance specifications
  • Communicate effectively with vendors, customers, and other Stellant personnel
  • Perform modeling and design engineer tasks on current or future products
Desired Qualifications
  • Project or system engineering with hands on experience preferred
  • Knowledge of the design, manufacturing or testing of RF and/or vacuum technologies is massive plus, with emphasis on helix TWTs
  • Experience working with engineering drawings or CAD software
  • Experience with manufacturing a plus, specifically in the fields of dispenser cathodes, vacuum hardware, brazing, RF systems, system integration and general mechanical packaging.
  • Understanding of lean manufacturing and continuous improvement principles a plus
  • Effective verbal and written communication skills are needed, with experience presenting to internal and/or external customers a plus
  • Experience in interpreting customer specifications into test requirement and comparing against test data
  • A master's degree in physics or engineering is a plus.
  • Understanding of computer modeling and simulation a plus
  • Computer programming skills a plus
  • Previous experience in root cause analysis efforts a bonus

Stellant Systems provides specialized hardware that amplifies radio frequency (RF) signals. Its products are critical spectrum and power amplification systems used by defense, space, medical/scientific, and industrial customers around the world to transmit and strengthen signals for communication, navigation, sensing, and control. The systems work by taking an input RF signal and boosting its power with carefully designed amplifiers and electronics, ensuring stable performance in demanding environments. The company differentiates itself by focusing on high-reliability, mission-critical amplification solutions across civil, military, and commercial sectors and by serving a global customer base. Its goal is to help create a safe, aware, and connected world by providing dependable amplification technology that supports vital operations worldwide.

Company Size

201-500

Company Stage

Acquired

Total Funding

$960M

Headquarters

Torrance, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • TransDigm's $960M acquisition validates Stellant's growth potential.
  • Arlington built strong leadership with Barclay CEO and Mosallaie COO.
  • 700,000 sq ft U.S. facilities enable scaled aerospace production.

What critics are saying

  • CFIUS rejects TransDigm deal over TWT monopoly concentration.
  • Solid-state amplifiers obsolete TWTs within 24-48 months.
  • Williamsport facility disruption halts TWT supply for 6-12 months.

What makes Stellant Systems unique

  • Stellant is sole U.S. manufacturer of space-qualified traveling wave tubes.
  • Stellant produces high-power RF/microwave components for radar and missiles.
  • Nearly all Stellant's $300M 2025 revenue from proprietary aftermarket products.

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Benefits

Health Insurance

Paid Sick Leave

Paid Holidays

Professional Development Budget

Company News

The AI Journal Ltd
Dec 31st, 2025
TransDigm Announces Acquisition of Stellant Systems, Inc.

TransDigm announces acquisition of Stellant Systems, Inc. CLEVELAND, Dec. 31, 2025 /PRNewswire/ - TransDigm Group Incorporated (NYSE: TDG) today announced it has entered into a definitive agreement to acquire Stellant Systems, Inc. ("Stellant" or "the Company"), a portfolio company of Arlington Capital Partners, for approximately $960 million in cash, including certain tax benefits. Stellant, headquartered in Torrance, California, is a leading global designer and manufacturer of high-power electronic components and subsystems serving the aerospace and defense end market. The Company's products are highly engineered, proprietary components with substantial aftermarket content and a strong presence across major aerospace and defense platforms. Approximately 50% of Stellant's revenue is derived from the aftermarket, and nearly all its revenue is generated from proprietary products. Stellant is expected to generate approximately $300 million in revenue for the calendar year ending December 31, 2025. The Company has manufacturing locations in Torrance, California; Williamsport, Pennsylvania; Melville, New York; and Topsfield, Massachusetts. The Company employs approximately 950 people. Mike Lisman, TransDigm's Chief Executive Officer, stated, "We are excited to have an agreement to acquire Stellant. The Company's highly engineered, proprietary products generate significant aftermarket revenue and fit well with our long-standing business strategy. The Company has established positions across a diverse range of both commercial and defense platforms, adding new products and services to TransDigm's portfolio. As with all TransDigm acquisitions, we expect this acquisition to create equity value in-line with our long-term private equity-like return objectives." The acquisition is subject to regulatory approvals in the United States and customary closing conditions. About TransDigm Group TransDigm Group, through its wholly-owned subsidiaries, is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. Major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, databus and power controls, cockpit security components and systems, specialized and advanced cockpit displays, engineered audio, radio and antenna systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, advanced sensor products, switches and relay panels, thermal protection and insulation, lighting and control technology, parachutes, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems, specialized flight, wind tunnel and jet engine testing services and equipment, electronic components used in the generation, amplification, transmission and reception of microwave signals, and complex testing and instrumentation solutions. All forward-looking statements involve risks and uncertainties that could cause TransDigm Group's actual results to differ materially from those expressed or implied in any forward-looking statements made by, or on behalf of, TransDigm Group. These risks and uncertainties include but are not limited to: the sensitivity of its business to the number of flight hours that its customers' planes spend aloft and its customers' profitability, both of which are affected by general economic conditions; supply chain constraints; increases in raw material costs, taxes and labor costs that cannot be recovered in product pricing; failure to complete or successfully integrate acquisitions; its indebtedness; current and future geopolitical or other worldwide events, including, without limitation, wars or conflicts and public health crises; cybersecurity threats; risks related to the transition or physical impacts of climate change and other natural disasters or meeting regulatory requirements; its reliance on certain customers; the United States ("U.S.") defense budget and risks associated with being a government supplier including government audits and investigations; failure to maintain government or industry approvals; risks related to changes in laws and regulations, including increases in compliance costs and potential changes in trade policies and tariffs; potential environmental liabilities; liabilities arising in connection with litigation; risks and costs associated with its international sales and operations; and other factors. Further information regarding the important factors that could cause actual results to differ materially from projected results can be found in TransDigm Group's most recent Annual Report on Form 10-K and other reports that TransDigm Group or its subsidiaries have filed with the Securities and Exchange Commission. Except as required by law, TransDigm Group undertakes no obligation to revise or update the forward-looking statements contained in this press release. View original content to download multimedia:https://www.prnewswire.com/news-releases/transdigm-announces-acquisition-of-stellant-systems-inc-302651037.html

PR Newswire
Dec 31st, 2025
TransDigm acquires Stellant Systems for $960M to expand aerospace and defense portfolio

TransDigm Group has agreed to acquire Stellant Systems for approximately $960 million in cash, including certain tax benefits. The deal involves buying the aerospace components manufacturer from private equity firm Arlington Capital Partners. Stellant, headquartered in Torrance, California, designs and manufactures high-power electronic components and subsystems for the aerospace and defence market. The company generates approximately 50% of its revenue from the aftermarket, with nearly all revenue coming from proprietary products. Stellant is expected to post approximately $300 million in revenue for 2025. The acquisition strengthens TransDigm's portfolio of highly engineered aerospace components with substantial aftermarket content across major aerospace and defence platforms.

The Port Arthur News
Dec 31st, 2025
TransDigm Announces Acquisition of Stellant Systems, Inc.

TransDigm announces acquisition of Stellant Systems, Inc. CLEVELAND, Dec. 31, 2025 /PRNewswire/ - TransDigm Group Incorporated (NYSE: TDG) today announced it has entered into a definitive agreement to acquire Stellant Systems, Inc. ("Stellant" or "the Company"), a portfolio company of Arlington Capital Partners, for approximately $960 million in cash, including certain tax benefits. Stellant, headquartered in Torrance, California, is a leading global designer and manufacturer of high-power electronic components and subsystems serving the aerospace and defense end market. The Company's products are highly engineered, proprietary components with substantial aftermarket content and a strong presence across major aerospace and defense platforms. Approximately 50% of Stellant's revenue is derived from the aftermarket, and nearly all its revenue is generated from proprietary products. Stellant is expected to generate approximately $300 million in revenue for the calendar year ending December 31, 2025. The Company has manufacturing locations in Torrance, California; Williamsport, Pennsylvania; Melville, New York; and Topsfield, Massachusetts. The Company employs approximately 950 people. Mike Lisman, TransDigm's Chief Executive Officer, stated, "We are excited to have an agreement to acquire Stellant. The Company's highly engineered, proprietary products generate significant aftermarket revenue and fit well with our long-standing business strategy. The Company has established positions across a diverse range of both commercial and defense platforms, adding new products and services to TransDigm's portfolio. As with all TransDigm acquisitions, we expect this acquisition to create equity value in-line with our long-term private equity-like return objectives." The acquisition is subject to regulatory approvals in the United States and customary closing conditions. About TransDigm Group TransDigm Group, through its wholly-owned subsidiaries, is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly all commercial and military aircraft in service today. Major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, databus and power controls, cockpit security components and systems, specialized and advanced cockpit displays, engineered audio, radio and antenna systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, advanced sensor products, switches and relay panels, thermal protection and insulation, lighting and control technology, parachutes, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems, specialized flight, wind tunnel and jet engine testing services and equipment, electronic components used in the generation, amplification, transmission and reception of microwave signals, and complex testing and instrumentation solutions. All forward-looking statements involve risks and uncertainties that could cause TransDigm Group's actual results to differ materially from those expressed or implied in any forward-looking statements made by, or on behalf of, TransDigm Group. These risks and uncertainties include but are not limited to: the sensitivity of its business to the number of flight hours that its customers' planes spend aloft and its customers' profitability, both of which are affected by general economic conditions; supply chain constraints; increases in raw material costs, taxes and labor costs that cannot be recovered in product pricing; failure to complete or successfully integrate acquisitions; its indebtedness; current and future geopolitical or other worldwide events, including, without limitation, wars or conflicts and public health crises; cybersecurity threats; risks related to the transition or physical impacts of climate change and other natural disasters or meeting regulatory requirements; its reliance on certain customers; the United States ("U.S.") defense budget and risks associated with being a government supplier including government audits and investigations; failure to maintain government or industry approvals; risks related to changes in laws and regulations, including increases in compliance costs and potential changes in trade policies and tariffs; potential environmental liabilities; liabilities arising in connection with litigation; risks and costs associated with its international sales and operations; and other factors. Further information regarding the important factors that could cause actual results to differ materially from projected results can be found in TransDigm Group's most recent Annual Report on Form 10-K and other reports that TransDigm Group or its subsidiaries have filed with the Securities and Exchange Commission. Except as required by law, TransDigm Group undertakes no obligation to revise or update the forward-looking statements contained in this press release. View original content to download multimedia:https://www.prnewswire.com/news-releases/transdigm-announces-acquisition-of-stellant-systems-inc-302651037.html

Stellant Systems
Oct 7th, 2024
Stellant Systems, Inc. Announces New Chief Operating Officer and Chief Technology Officer

Stellant Systems, Inc. (Stellant), a premier manufacturer of RF/Microwave amplification products, recently announced the appointment of Mansoor Mosallaie as its new Chief Operating Officer (COO) and Steve Shpock, D.E.E. as Chief Technology Officer (CTO).

Stellant Systems
Sep 5th, 2024
Stellant Systems, Inc. Appoints Keith Barclay as Chief Executive Officer and Board Member

Stellant Systems, Inc. (Stellant), a premier manufacturer of RF/Microwave amplification products, today announced the appointment of Keith Barclay as its Chief Executive Officer and to the Board of Directors.

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