Principal Mechanical Engineer I

Posted 4 Days Ago
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Cambridge, Cambridgeshire, England, GBR
In-Office
Expert/Leader
Aerospace • Hardware • Software • Defense
CesiumAstro creates out-of-the-box communication systems for space and airborne platforms.
The Role
Lead end-to-end mechanical design for space and aerospace electronics packaging, including concept, requirements, CAD, FEA, thermal and vibration analysis, manufacturing, testing, qualification, and in-orbit support. Mentor junior engineers, present design reviews, and contribute to proposals.
Summary Generated by Built In
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.

We are looking to add a Principal Mechanical Design Engineer I to our team. If you enjoy working in a startup environment, and are passionate about developing leading-edge hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you.
 
In this position, you will be responsible for the mechanical design of Cesium products through all phases of the development process. The ideal candidate will have extensive experience in electronics packaging design, mechanical simulations and analyses, computer-aided design (CAD), spacecraft mechanical interfaces, and environmental qualification of electronic assemblies.
 
As a principal mechanical team member, you will be responsible for mechanical designs from initial concept design through requirements definition, detailed design, simulation, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Required skills and experience include thermal management design, precision machining principles, thermal simulation and analysis, shock and vibration simulation and analysis, electromagnetic interference/compatibility (EMI/EMC) mitigation techniques, geometric dimensioning and tolerancing (GD&T), finite element analysis (FEA), and cost analysis to develop, validate, and optimize mechanical designs. Principal engineers also serve as technical and professional mentors in their field, helping to cultivate and develop junior engineers on the team.
 
The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • A Bachelor of Science (BS) or Master of Science (MS) degree in Mechanical or Aerospace Engineering from an accredited university or institution.
  • 9 years of industry experience in design and analysis of electronics packaging, including thermal, vibration, and stress dynamics hand calculations and simulations.
  • Expertise in aerospace and space industry design, development, and qualification.
  • Expert-level proficiency with electronics assemblies and experience working closely with electrical engineers on printed circuit board assemblies (PCBAs, CCAs).
  • Expert-level proficiency with professional mechanical CAD (SolidWorks preferred) and FEA tools (Ansys preferred)
  • Experience with CNC manufacturing.
  • Experience with EMI/EMC mitigation techniques.
  • Excellent written and verbal communication skills.

Benefits:

  • CesiumAstro is an equal opportunity employer offering competitive salaries and great benefits including competitive employer pension contributions, company-provided income protection and life insurance cover, an employee assistance program, and generous vacation and sick leave.
  • Tremendous scope for personal growth and professional development in a high-growth company.
  • A highly talented, passionate, international team that is changing the space industry.
  • Modern working environment.

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills.

Please be aware that many roles will be subject to both security and export control restrictions. These restrictions mean that factors including new starter’s nationality, any previous or dual nationalities held, place of birth and country of residence may limit those roles that you can perform for the organisation.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members not through our approved vendor list or Talent Acquisition will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

Skills Required

  • Bachelor's or Master's degree in Mechanical or Aerospace Engineering
  • 9 years industry experience in electronics packaging design including thermal, vibration, and stress analyses
  • Expert-level proficiency with mechanical CAD tools
  • SolidWorks proficiency
  • Expert-level proficiency with FEA tools
  • Ansys proficiency
  • Thermal management design and thermal simulation/analysis experience
  • Shock and vibration simulation and analysis experience
  • Experience with EMI/EMC mitigation techniques
  • Experience with electronics assemblies and working with PCBAs/CCAs
  • Experience with CNC manufacturing and precision machining principles
  • Geometric Dimensioning and Tolerancing (GD&T) knowledge
  • Excellent written and verbal communication skills

CesiumAstro Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CesiumAstro and has not been reviewed or approved by CesiumAstro.

  • Healthcare Strength Health coverage includes medical, dental, vision, life and disability insurance, plus FSAs and mental health benefits. Feedback suggests the health package is comprehensive for a growth-stage aerospace firm.
  • Retirement Support Offerings include a 401(k) with company matching and other retirement-plan elements. Feedback suggests core retirement mechanisms are in place alongside standard financial benefits.
  • Leave & Time Off Breadth Generous PTO, paid holidays, paid sick days, and bereavement leave are included. Feedback suggests time-off options are broad on paper across multiple leave types.

CesiumAstro Insights

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The Company
HQ: Austin, TX
400 Employees
Year Founded: 2017

What We Do

We build high-throughput, plug-and-play phased array communication payloads for space and airborne platforms. CesiumAstro’s full-stack, multi-mission hardware and software products enable a diverse range of commercial and defense objectives. Full-system engineering design is at the heart of every CesiumAstro product. We deliver high-performance solutions under rapid development timelines.

Why Work With Us

At CesiumAstro, we’re a team. We’re passionate, respectful, and determined colleagues ready to help at a moment’s notice. We’re mentors excited to enable our peers with the knowledge they need to succeed. Together, we’re visionaries committing to building memories that will last a lifetime.

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