Compact, gantry-mounted proton therapy systems for cancer treatment centers
Mevion Medical Systems builds compact proton therapy systems for radiation oncology. Its stack pairs embedded real-time tooling (C++, VxWorks, Qt, Boost) with electronics CAD (Altium Designer, OrCAD, SolidWorks), pointing to deep in-house hardware and control-software engineering. Engineering-heavy hiring and pain points around equipment downtime, long-lead materials and regulated software quality show a low-volume, high-complexity manufacturer focused on reliability.
Mevion Medical Systems, founded in 2004 and headquartered in Littleton, Massachusetts, designs and manufactures proton therapy systems used to treat cancer patients. Its S250 product family is built around a proton accelerator mounted directly on the gantry, with variants covering volumetric delivery, intensity-modulated pencil beam scanning and multi-room configurations. Customers are cancer centers and hospitals seeking smaller-footprint proton therapy. The privately held company employs 51–200 people, maintains a presence in the UK and Japan, and participates in a joint venture in China.
Mevion uses C++, VxWorks, Qt, Boost and Python for system software, Altium Designer, OrCAD and SolidWorks for hardware design, plus Salesforce, SAP, Oracle, NetSuite, Epicor and Jira for business and engineering operations.
Yes. Engineering is the dominant hiring area, mostly mid-level roles in the United States, followed by manufacturing, with smaller openings in finance, HR and operations. Overall hiring pace is slowing.
Current work includes electrical subsystem development for the S250 proton therapy platform, electromechanical subsystem design, software verification and validation, and quality, calibration and manufacturing process improvements.
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Mevion Medical Systems's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
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