Principal Mechanisms Engineer

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others - with an additional $500M in signed contracts across commercial and US government customers - we're mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space.


The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today's and tomorrow's massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.


With multiple launches planned through 2026 and 2027, we're Building Bigger to develop the solar system and become a Kardashev Type II (K2) civilization. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a groundbreaking Series C space startup, we'd love for you to apply.


The Role


K2's plan doesn't stop at satellite buses. Operating our own vehicles and manifesting regular rides to space uniquely positions K2 to design, test, and deploy-at-scale ambitious remote sensing payloads in MEO, GEO, cis-lunar, and deep space on unprecedented timelines. The satellite bus is the platform - the payloads are the mission.


There are any number of space-based optical payloads that can generate value here on Earth (ex. forest fire detection, climate and atmospheric monitoring, etc.) and further planetary science in our solar system (ex. hyper-spectral imaging, laser-altimetry) -- all of which benefit from precisely steered and stabilized large aperture optical systems for collecting and transmitting optical energy from the UV to the infrared.


As Principal Mechanisms Engineer, you will be responsible for defining how K2 designs, manufactures, tests, integrates, and deploys coarse pointing assemblies for large aperture optical payloads. The development timelines and manufacturing scale that we are targeting will require meaningful innovation, but you will have the resources and full support of K2 to make this possible and help raise the bar for the next generation of space technology companies.


Responsibilities


Responsible for delivering the...


(1) design and tolerancing;


(2) line-of-sight error budgeting and stabilization analysis;


(3) environmental test and qualification plan;


(4) supply chain and high-volume manufacturing plans; and


(5) ground- and in-flight performance validation plans


... for coarse pointing assemblies supporting large aperture (0.1m - 1m diameter) optical payloads

• Collaborate with the optical and satellite bus teams to determine the optimal set of requirements for optical payload coarse pointing assemblies

• Own the top-level CAD assembly for the optical payloads that you work on and work closely with the satellite structures team to determine optimal placement on the bus

• Prepare design reviews for your mechanisms to get stakeholder buy-in and communicate expectations to the other hardware, software, test, and manufacturing teams

• Continually own and refine program deliverables and associated schedules throughout development and production

• Responsible for the evaluation and selection of manufacturing equipment for specialty processes

• Partner with production to develop work instructions, in-process checkouts, and end-of-line tests that ensure successful builds

Qualifications

• Bachelor's degree in mechanical, aerospace, or other relevant engineering discipline

• 8+ years of hands-on laboratory or work experience in optomechanics, electromechanical mechanisms, or electrical/mechanical design and testing

• Deep experience with CAD and FEA software packages (examples/ NX, Simcenter, FEMAP, and/or Hypermesh)

• Minimum 3+ years of experience working with one or more computer programing languages (examples: Python, Rust, C++, and/or MATLAB)

Nice to Have

• Experience with precision optical mechanisms - specifying requirements, trading gimbal / head-mirror / nested coarse-fine architectures, quantifying mechanism error, and validating pointing performance at the system level

• Deep knowledge of 2-axis gimbal design for space applications, including bearing selection and preload, structural design, drive mechanisms, angular runout, and long-life operation in vacuum

• Experience closing line-of-sight performance budgets through analysis, controls integration, and test - including structural dynamics, tolerance stack-up, jitter analysis, pointing calibration, and environmental qualification

• Familiarity with precision actuation, sensing, and control technologies for space mechanisms, including encoders, resolvers, gyros / IMUs, and feedforward / closed-loop control approaches

• Experience designing harness routing, cable wraps, slip rings, and other cable-management approaches for continuously or widely rotating mechanisms, including routing optical fibers through moving axes while managing bend radius, strain relief, and pointing disturbance

• Experience leading mechanism hardware through the full product life cycle: requirements generation, architecture trades, detailed design, prototype builds, assembly / integration / test, productionizing, and flight validation

• Experience contributing to spacecraft-level alignment and calibration planning for optical pointing mechanisms, including coordination with optical, GNC, and systems teams to relate mechanism reference frames to payload, spacecraft, and star-tracker coordinate systems

• Experience with NASA-STD-5017, SMC-S-016, and GSFC-STD-7000 for the design and qualification of in-space Moving Mechanism Assemblies

Compensation and Benefits

• Base salary range for this role is $175,000 - $200,000 + equity in the company

• Salary and level will be based on several factors including, but not limited to: knowledge and skills, education, and experience level

• Comprehensive benefits package including paid time off, medical/dental/vision coverage, life insurance, paid parental leave, and many other perks

If you don't meet 100% of the preferred skills and experience, we encourage you to still apply! Building a spacecraft unlike any other requires a team unlike any other and non-traditional career twists and turns are encouraged!

If you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.

Export Compliance

As defined in the ITAR, "U.S. Persons" include U.S. citizens, lawful permanent residents (i.e., Green Card holders), and certain protected individuals (e.g., refugees/asylees, American Samoans). Please consult with a knowledgeable advisor if you are unsure whether you are a "U.S. Person."

The person hired for this role will have access to information and items controlled by U.S. export control regulations, including the export control regulations outlined in the International Traffic in Arms Regulation (ITAR). The person hired for this role must therefore either be a "U.S. person" as defined by 22 C.F.R. § 120.15 or otherwise eligible for a federally issued export control license.

Equal Opportunity

K2 Space is an Equal Opportunity Employer; employment with K2 Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.