Full-Time

Principal Guidance, Navigation and Control Engineer

Updated on 9/3/2026

Apex

Apex

201-500 employees

Manufactures ESPA-class satellites and bus

Compensation Overview

$200k - $260k/yr

+ Equity + 401(k) match

Los Angeles, CA, USA

In Person

Bachelor's, Master's

Category
Aerospace Engineering (1)
Required Skills
Data Structures & Algorithms
JIRA

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Requirements
  • A Bachelor's or Master's degree in Aerospace Engineering, Electrical Engineering, or a related field is required.
  • At least 15 years of industry experience in guidance, navigation, and control or attitude determination and control systems is required.
  • At least 5 years of industry experience developing or operating spacecraft or satellites is required.
  • Prior experience leading a team of three or more direct reports is required.
  • Prior experience directly interfacing with aerospace customers in the commercial or government sectors is required.
  • Experience with Jira planning and workflow is required.
  • Hands-on experience with inertial measurement units, reaction wheels, star trackers, gyroscopes, and other guidance, navigation, and control hardware is required.
  • Experience developing blended attitude solutions from a variety of sensor data is required.
  • Demonstrated experience developing, implementing, and verifying flight software is required.
  • Demonstrated experience with spacecraft on-orbit operations and anomaly resolution is required.
  • Prior experience leading a team across a project lifecycle is required.
  • Prior experience working on multiple projects simultaneously and determining priorities for a team is required.
  • Experience with guidance, navigation, and control-related business development or conceptual design work is required.
Responsibilities
  • Lead architecture for guidance, navigation, and control design, modeling, and analysis for a wide variety of spacecraft and space missions, including low Earth orbit, medium Earth orbit, geosynchronous Earth orbit, and rendezvous, proximity operations, and docking.
  • Design flight software, algorithms, and simulation products.
  • Develop spacecraft autonomy tools for constellation management.
  • Select guidance, navigation, and control components and design guidance, navigation, and control subsystems.
  • Develop and execute test processes.
  • Define fault detection and response.
  • Perform hardware-in-the-loop and Monte Carlo simulations.
  • Integrate flight and simulation software with modern analysis, test, and operations tools.
  • Support internal and external design reviews.
  • Work with department leads and program managers to plan and maintain team schedules and milestones and report technical status.
  • Lead guidance, navigation, and control development across the spacecraft engineering life cycle, including spacecraft concept and algorithm development, flight software implementation, subsystem requirements development, detailed guidance, navigation, and control design, subsystem integration and test, and vehicle integration and test.
  • Interact directly with customers to ensure mission success.

Apex Space designs and builds ESPA-class satellite buses like the Aries bus for space missions. The Aries bus can host payloads up to 94 kilograms with a total wet mass of up to 197 kilograms, enabling missions in LEO and compatibility with MEO, GEO, and deep space. They sell customizable satellite buses to government, commercial, and research clients for Earth observation, communications, and science, with options for performance upgrades and post-reservation configurations. They differentiate themselves with guaranteed on-time delivery, high reliability, and transparent pricing, aiming to provide reliable, configurable platforms that simplify access to space for diverse missions.

Company Size

201-500

Company Stage

Late Stage VC

Total Funding

$718.5M

Headquarters

Los Angeles, California

Founded

2020

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Simplify Jobs

Simplify's Take

What believers are saying

  • June 5, 2026 funding added over $200 million for campus expansion and hiring.
  • Comet XL targets Starship-class missions, opening larger defense and orbital-compute deals.
  • AnySignal and KSAT partnerships reduce customer friction and broaden Apex's mission stack.

What critics are saying

  • Northrop Grumman's Golden Dome work ties Apex to volatile Pentagon procurement timelines.
  • Project Shadow launches NET June 2026; failure would damage credibility and customer trust.
  • Apex's $2.3 billion valuation leaves little room if production ramps slip or orders stall.

What makes Apex unique

  • Apex sold out production through 2027 and 2028, signaling real manufacturing scarcity.
  • Apex vertically integrates propulsion, buses, and mission services faster than legacy primes.
  • Apex pairs satellite buses with KSAT and AnySignal for end-to-end mission operations.

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Benefits

Shared upside

Best-in-class healthcare

Comprehensive PTO package

Competitive 401(k) plan

8 weeks paid parental leave

Daily catered lunch and unlimited snacks

Vibrant community

Your dream desk setup

World-class Playa Vista office

Real impact opportunity

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

-4%

2 year growth

2%
PR Newswire
Sep 9th, 2026
AnySignal partners with Apex to integrate AnyLink communications on mass-produced satellite buses

AnySignal has partnered with Apex to offer its AnyLink communications services on Apex's satellite platforms. The collaboration builds on the successful on-orbit performance of AnySignal's networking software aboard Apex spacecraft. The partnership allows customers to design missions using a single integrated platform from conception through on-orbit operations. AnyLink aggregates multiple ground station networks into one unified platform, providing continuous spacecraft connectivity rather than requiring manual handoffs between providers. AnySignal develops software-defined radios and space-based networking systems for civil, commercial, and national security applications. Apex manufactures standardised satellite platforms, with production capacity ramping to 200 buses per year at its Los Angeles facility. The company's Aries, Nova, and Comet product lines serve both commercial operators and US defence primes.

Intelligence360 News
Aug 4th, 2026
Apex Technology files to raise $157M to mass-manufacture satellites for US and allies

Apex Technology has filed a notice with the US Securities and Exchange Commission to raise up to $156.8 million in new funding. The filing was made under an exempt offering of securities without registration under the Securities Act of 1933. Founded in 2022 by CEO Ian Cinnamon and CTO Max Benassi, Apex addresses satellite production bottlenecks by mass-manufacturing spacecraft. The company aims to help the US and its allies maintain strategic advantage in the space race through scaled satellite production. Apex offers three product lines — Aries, Nova, and Comet — serving missions from low Earth orbit to geostationary orbit. The company focuses on short lead times, constellation-scale production, and highly reliable spacecraft.

TrendPulse
Jul 14th, 2026
Toyota Racing Development partners with Apex for satellites.

Toyota Racing Development partners with Apex for satellites. TrendPulse AI Analysis This article covers business trends, sourced from Fortune. Its AI system has analyzed the key points and extracted the most relevant insights for decision-makers. Below is the structured breakdown of the original content. Quick summary. * Toyota Racing Development (TRD) is applying high-volume automotive manufacturing precision to the production of satellite components for the aerospace startup Apex. * This partnership aims to bridge the gap between bespoke, low-volume aerospace manufacturing and the high-scale, rigorous quality standards required for modern satellite constellations. * With an estimated 100,000 satellites projected for launch over the next five years, the collaboration highlights a strategic shift toward industrializing space hardware production. Key details. Apex, a Los Angeles-based startup valued at $2.3 billion, is leveraging the expertise of Toyota Ventures to revolutionize how satellites are built. By partnering with TRD, the team behind Toyota and Lexus race cars, Apex is adopting automotive supply chain and quality control methodologies to produce structural components like bulkheads and base decks. These parts require extreme precision, mirroring the "ridiculous tolerances" demanded by high-performance racing. "Race cars are the prime example, in everything from how you manage your supply chain, to how you think about the quality bar. When you're dealing with a race car going 100-plus miles per hour, carrying a human, that thing cannot fail. And you need to be building them at some scale." This collaboration addresses a fundamental bottleneck in the aerospace sector: the reliance on slow, artisanal manufacturing processes. Apex cofounder Ian Cinnamon argues that the future of space infrastructure depends on standardized, high-quality production that mimics the automotive industry's ability to scale. TRD serves as the ideal partner, operating in the "middle ground" between mass-market vehicle production and the ultra-precise, low-volume requirements of traditional aerospace engineering. Why this matters. This partnership signals a broader trend of cross-industry pollination, where automotive manufacturing prowess is becoming a critical asset for the burgeoning space economy. As the demand for satellite constellations grows, the ability to produce reliable hardware at scale will determine which companies dominate the orbital landscape. Investors should view this as a validation of "industrialized space," where the winners will be those who can reduce costs through manufacturing efficiency rather than relying on traditional, high-cost aerospace methods. For industry professionals, this shift suggests that the next wave of aerospace innovation will not come from traditional rocket science alone, but from the integration of automotive-grade supply chain management. Companies that successfully adapt these high-volume, high-precision techniques will likely capture significant market share as the orbital environment becomes increasingly crowded and commercially vital. The bottom line. By importing automotive manufacturing scale into the aerospace sector, Toyota and Apex are setting a new standard for the rapid, reliable production of critical satellite infrastructure. Original source: Fortune This article has been processed and analyzed by TrendPulse AI for informational purposes. Content may have been summarized or restructured for clarity.

Channel NewsAsia
Jun 5th, 2026
Space startup Apex doubles valuation to $2.3 billion in new funding.

Space startup Apex doubles valuation to $2.3 billion in new funding. 05 Jun 2026 10:17PM (Updated: 06 Jun 2026 01:57PM) Add CNA as a trusted source to help Google better understand and surface our content in search results. June 5: Space startup Apex has more than doubled its valuation to $2.3 billion in under a year after raising over $200 million in a new funding round, the firm said on Friday, underscoring growing investor interest in the sector. The fundraise comes amid heightened investor enthusiasm in space exploration and defense, driven by expanding commercial satellite networks, government-led defense opportunities and buzz around a SpaceX IPO. Here are some more details: - The funding round was led by Glade Brook Capital Partners and co-led by Washington Harbour Partners with participation from existing investors. - New capital will accelerate Apex's expansion of its satellite manufacturing campus and fund "ahead-of-need manufacturing" of its satellite platforms, the company said. - Founded in 2022, Apex builds satellite buses designed to host commercial and government payloads such as Earth-imaging capabilities and sensors for missile tracking and defense. - Earlier this week, Northrop Grumman said it will collaborate with Apex to support the development of U.S. President Donald Trump's Golden Dome missile defense project. - Apex also named Michael Kopet as its chief financial officer. - The company was valued at $1 billion in September last year after raising $200 million in a funding round.

Defense Daily
Jun 5th, 2026
Apex raises $200 million to boost hiring and vertical integration.

Apex raises $200 million to boost hiring and vertical integration. Friday, June 5th, 2026 Satellite bus manufacturer Apex on Friday said it raised more than $200 million in a new investment round to add more engineers, continue vertical integration of satellite production, and provide customers with more mission services. Glade Brook Partners and Washington Harbour Partners led the funding round. Apex is adding 30,000 square feet to the company's Factory One office complex in Los Angeles to accommodate more engineers focused on different stages of the satellite bus supply line/production and to help customers... Not a subscriber or registered user yet? Please contact us at [email protected] or call us at 888-707-5814 (Monday - Thursday 9:00 a.m. - 5:30 p.m. and Friday 9:00 a.m. - 3:00 p.m. ET.), to start a free trial, get pricing information, order a reprint, or post an article link on your website.