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Join a startup on the way up — not a bet, not a giant.

Tech roles at Series A–C companies backed by Sequoia, a16z, Benchmark & other top-tier VCs

  • Sequoia
  • a16z
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  • Founders Fund
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  • a16z
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  • Thrive Capital

Open roles

High-signal tech roles at Series A–C companies, refreshed as boards update.

20 results on this page
Jobs per page
PreviousPage 7Next
Cowboy Space logo
Sr. Accounting Specialist
1/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$83,000 - $91,000
Onsite
20 results on this page
Jobs per page
PreviousPage 7Next
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Microsoft Excel
NetSuite
SAP
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Senior Accounting Specialist to manage high-volume accounts payable operations, ensure accurate invoice processing, and support financial operations for engineering and supply chain teams. The role involves vendor invoice processing, three-way matching, payment runs, and process improvements.

Cowboy Space logo
Space Communications Engineer
2/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$182,000 - $243,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Simulink
Vector Network Analyzer
Posted 2 weeks agoSee job

We are seeking an experienced Space Communication Systems Engineer to design, analyze, and validate wireless communication systems for satellite platforms. The role covers RF front-end, antenna design, modem architecture, and ground station integration across S-band, X-band, K-band, and UHF. Requires 7+ years of experience and strong RF fundamentals.

Cowboy Space logo
Optical Engineer, Lasers and Photonics
3/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$120,000 - $200,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Posted 2 weeks agoSee job

Design and build high-power fiber laser and amplifier systems for space-based satellite communications. Role involves hands-on fiber-optic component integration, characterization, and testing for optical communications links.

Cowboy Space logo
Technical Program Manager, Avionics
4/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$145,000 - $220,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Avionics
DO-254
Embedded Software
FPGA
+8 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks an experienced Technical Program Manager to drive execution of next-generation avionics hardware, anchoring the development lifecycle from concept through qualification and mission integration while bridging Engineering, Supply Chain, Manufacturing, and Quality teams.

Cowboy Space logo
Fluids Engineer
5/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Additive Manufacturing
CATIA
Finite Element Analysis
SolidWorks
+1 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Fluids Engineer to own the design and development of fluid system hardware for propulsion, fluids, and thermal management architectures, including valves, tanks, tubing, and integrated subsystems, from concept through flight.

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Cowboy Space logo
Sr. Controls Engineer
6/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$165,000 - $190,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
C/C++
Controller Area Network
Kalman Filtering
LabVIEW
+7 more
Posted 2 weeks agoSee job

Senior Controls Engineer at Cowboy Space Corp. to design and develop motor controls, automation sequences, and embedded control systems for fluid systems in launch and propulsion. Requires 3+ years of controls experience and embedded C/C++. On-site in Seattle, WA.

Cowboy Space logo
DSP Software Engineer
7/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$167,000 - $214,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
C/C++
CI/CD
CUDA
Digital Signal Processing
+6 more
Posted 2 weeks agoSee job

Cowboy Space Corp is seeking a DSP Software Engineer to develop real-time signal processing algorithms for space-based communications and sensing systems. The role involves designing, implementing, and optimizing high-performance software in C/C++ for embedded and real-time applications, collaborating with FPGA, RF, and avionics teams.

Cowboy Space logo
Staff Engineer, Optics and RF
8/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$219,000 - $276,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Altium Designer
Impedance Matching
PCB Design & Layout
RF Simulation
+2 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is hiring a Staff Engineer for Optics and RF to design and validate RF hardware for high-speed optical communication links in satellites. The role involves board-level RF design, PCB layout, and integration with optical systems.

Cowboy Space logo
Mechanisms Engineer - Aero Control Surfaces
9/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Abaqus
ANSYS
Avionics
CAD
+8 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Mechanisms Engineer to own critical vehicle mechanism subsystems from concept through flight, including separation systems, landing gear, or aero control surfaces. This hands-on role involves design, analysis, test, and flight validation, with a focus on minimum mass and high reliability for reusable launch vehicles. Requires 5+ years of experience and expertise in CAD and FEA.

Cowboy Space logo
Launch Vehicle Engineering
10/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Posted 2 weeks agoSee job

Cowboy Space Corp is hiring launch vehicle engineers across multiple disciplines including systems engineering, structures, avionics, propulsion, and integration. The role involves designing, building, testing, or operating launch vehicle systems and flight hardware. Requires strong aerospace fundamentals and hands-on experience with flight hardware.

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Cowboy Space logo
Sr. Battery Engineer
11/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$167,000 - $230,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Avionics
DFM/DFA (Design for Manufacturability & Assembly)
Failure Mode and Effects Analysis (FMEA)
Kalman Filtering
+4 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a Senior Battery Engineer to own the design, development, integration, and qualification of spacecraft battery systems. This hands-on role involves developing reliable energy storage solutions for space missions, working across power electronics, thermal, and mechanical teams.

Cowboy Space logo
Head of Test
12/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$265,000 - $302,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
C/C++
Data Acquisition Systems
Python
Simulink
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Head of Test to build and lead the test organization for rocket propulsion systems. This role involves defining test philosophy, building test stands, and leading a team to test propulsion systems at high cadence.

Cowboy Space logo
Senior Compute Validation Engineer
13/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$150,000 - $200,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
C/C++
I2C
Logic Analyzers
NVLink
+3 more
Posted 2 weeks agoSee job

Lead validation strategy for advanced compute hardware on satellites, working across engineering teams to ensure reliability from launch through orbital deployment. Requires hands-on debugging and expertise in high-speed interconnects, power, and thermal systems.

Cowboy Space logo
Avionics Engineer, Flight Computer
14/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$120,000 - $175,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Altium Designer
Controller Area Network
Embedded Linux
Ethernet
+8 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is building space infrastructure for the orbital economy, and seeks a Flight Computer Avionics Engineer to own the design, development, integration, and qualification of spacecraft flight computer hardware. This hands-on role requires expertise in high-reliability digital electronics, fault-tolerant architectures, and board-level validation.

Cowboy Space logo
Injector Design and Development Engineer
15/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$130,000 - $180,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Additive Manufacturing
Machining
Mechanical Design
Posted 2 weeks agoSee job

Cowboy Space Corp. is building space infrastructure for the orbital economy. We are seeking an Injector Design and Development Engineer to own rocket engine injectors end to end, from design through validation, with hands-on manufacturing and test. This role is onsite in the greater Seattle, WA area.

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Cowboy Space logo
Optics Lab Manager & Test Engineer
16/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$145,000 - $223,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Oscilloscope
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks an Optics Lab Manager & Test Engineer to own the optics lab and support the build and verification of next-generation laser communications systems. This hands-on role involves lab operations, laser safety, optical alignment, and test execution.

Cowboy Space logo
Flight Software Engineer
17/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$200,000 - $250,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Avionics
C Programming Language
C++
Guidance, Navigation & Control
+4 more
Posted 2 weeks agoSee job

Senior Flight Software Engineer responsible for owning payload flight software in Rust, including architecture, state machines, and telemetry. Lead technical owner driving the software toward on-orbit demonstration.

Cowboy Space logo
Head of Analysis
18/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$220,000 - $272,373
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Abaqus
ANSYS
Digital Image Correlation (DIC)
NASTRAN
+3 more
Posted 2 weeks agoSee job

Cowboy Space Corp is seeking a Head of Analysis to lead the analysis organization within Launch & Propulsion, owning structural, thermal, and CFD methods and tools to substantiate engine and vehicle designs. The role requires 10+ years of aerospace analysis experience and building a world-class analyst team.

Cowboy Space logo
Avionics Test Engineer
19/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$110,000 - $150,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Controller Area Network
Ethernet
FPGA
I2C
+6 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks an Avionics Test Engineer to lead validation, integration, and qualification of spacecraft electronics. The role involves developing test systems, automated test equipment, and performing board-level bring-up and troubleshooting to ensure mission readiness.

Cowboy Space logo
Sr. Mechanisms Engineer
20/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$152,000 - $220,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Closed-Loop Control
GD&T
SolidWorks
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a Senior Mechanisms Engineer to own gimbal mechanism development for laser communications payloads. The role spans design, analysis, procurement, integration, and qualification of flight mechanisms. Requires 5+ years of experience in aerospace or defense programs.

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Get new VC-backed tech jobs in your inbox every morning.

Narrow your alert

Free daily email. Confirm via link to activate. Unsubscribe anytime.