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Junior​/Associate Mechanical Engineer

Remote / Online - Candidates ideally in
Oxford, Oxfordshire, OX1, England, UK
Listing for: Infleqtion
Full Time, Part Time, Remote/Work from Home position
Listed on 2026-01-11
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Junior / Associate Mechanical Engineer

Infleqtionis a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtionenables “quantum everywhere” through our ecosystem of devices and platforms. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications.

LOCATION

Infleqtionhas offices in the USA, United Kingdom and Australia. This is a full-time position split between our Kidlington, Oxford officeand the National Quantum Computing Centre, Harwell. Work from home permitted up to 2 days per week based on business needs and manager approval.

POSITION SUMMARY

We are looking fora recently qualified/graduatemechanicalengineerto fulfil avaried and exciting position within our growing team. As a Junior / Associate Mechanical Engineer you will be exposed to a wide range of R&D activities,working alongside some of the brightest mindsin the industry to translate experimental concepts into engineered solutions. As a team we encourage aproactivehands-on approach, giving our engineers the opportunity to research,design,build and test mechanical systemsina diverse and collaborative environment.

JOB

RESPONSIBILITIES

With support from our engineering team, the Junior /Associate Engineer will learn to take onto the duties and responsibilities outlined below that include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned.

  • Work alongside physicists and engineers to capture and interpret mechanical design requirements for optical and ultra-high vacuum systems.
  • Create CAD models, drawings, and documentation packages in accordance with company design guidelines and industry best practice.
  • Use a combination of rapid prototyping and engineering analysis to guide design decisions, communicating findings to project leaders both verbally and through design documentation.
  • Support research efforts by designing and assembling enclosures, jigs and fixtures using a combination of bought in components and basic machine tools.
  • Work with the production team to assemble prototype and first off production systems, documenting feedback on DfM and DfA for future designs.
  • Work with external suppliers to identify and procure appropriate custom and off‑the‑shelf components.
Qualifications
  • A bachelor’s degree in mechanical engineering, Optical Engineering, Mechatronics, Physics or similar field(s), or equivalent vocational qualification(s).
Skills & Experience
  • Experience with 3D CAD software (Solid Works preferred).
  • Proficiency in MS Office applications.
  • Excellent written and verbal communication skills.
  • Entrepreneurial drive, intellectual agility and personal eagerness to develop with the needs of the business.
  • Passion for solving complex problems and challenges in a highly technical and scientific environment.
  • Ability to work comfortably in a highly collaborative, cross‑functional, team‑oriented, and matrixed environment.
Desirable qualifications (not essential)
  • 2 years industry experience in a relevant engineering role.
  • Experience with free space or fibre optical system design, lasers or photonics.
  • Experience with design for harsh dynamic environments (shock, vibration, temperature, humidity).
  • Familiarity with magnetic field simulation and shielding.
  • Experience in an ISO certified manufacturing environment using data management systems such as PDM, PLM or ERP.
WORKING CONDITIONS &

PHYSICAL REQUIREMENTS

Work will normally be performed in an office and laboratory environment. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in‑person). Will involve sitting, standing, walking, lifting, and carrying up to 10 kg.

TRAVEL

Up to 10% travel may be required.

EQUAL OPPORTUNITY

Regardless of your interest in the quantum industry, you can take pride in the fact that…

Position Requirements
10+ Years work experience
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