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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
  • Benchmark
  • Accel
  • Greylock
  • Founders Fund
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  • Sequoia
  • a16z
  • Benchmark
  • Accel
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  • Founders Fund
  • General Catalyst
  • Index Ventures
  • Lightspeed
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  • Insight Partners
  • IVP
  • NEA
  • 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
Mechanisms Engineer - Aero Control Surfaces
1/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

Onsite
Series B
20 results on this page
Jobs per page
PreviousPage 7Next
$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
DSP Software Engineer
2/20Posted 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
Head of Test
3/20Posted 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
Fluids Engineer
4/20Posted 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.

Cowboy Space logo
PCB Layout Engineer
5/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$128,000 - $160,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Altium Designer
Ethernet
High-Speed Digital Interfaces
Mixed-Signal PCB Design
+4 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a PCB Layout Engineer to own the design of high-performance PCBs for spacecraft avionics, power, RF, and compute systems. Collaborate with cross-functional teams to deliver manufacturable layouts with strong signal integrity and reliability. Requires 1-5+ years of experience and proficiency with industry-standard PCB tools.

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Cowboy Space logo
Optics Lab Manager & Test Engineer
6/20Posted 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
Satellite Engineering
7/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Avionics
Embedded Systems
Flight Software
Guidance, Navigation & Control
+2 more
Posted 2 weeks agoSee job

We are hiring across multiple satellite engineering disciplines looking for engineers experienced in designing, building, integrating, testing, or operating spacecraft systems. This role offers ownership over mission-critical space hardware and involves working on systems engineering, avionics, power, thermal, structures, GNC, and flight software.

Cowboy Space logo
Launch Vehicle Engineering
8/20Posted 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.

Cowboy Space logo
Principal Turbo Hydrodynamicist
9/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

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

Principal Turbo Hydrodynamicist responsible for owning the hydrodynamic design of rocket engine turbopumps, including flowpath design, analysis, testing, and hardware implementation. Requires 12+ years of turbomachinery experience, with a focus on cryogenic propulsion systems.

Cowboy Space logo
Senior Mechanisms Engineer - Electromechanical Actuators
10/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$150,000 - $180,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Abaqus
ANSYS
Avionics
CAD
+10 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a Senior Mechanisms Engineer to own electromechanical actuator subsystems from concept through flight. The role involves designing, testing, and owning critical mechanisms for launch vehicles. Requires 5+ years of experience and U.S. citizenship.

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Cowboy Space logo
Senior IT Engineer
11/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$135,000 - $175,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Amazon EC2
Amazon Web Services (AWS)
AWS Lambda
Bash
+26 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Senior IT Engineer to architect, manage, and secure the company's IT infrastructure, including devices, identity, networks, and cloud, in a regulated ITAR/EAR environment. This hands-on role involves owning zero-trust compliance, automation, and cloud infrastructure, and serving as the senior escalation point.

Cowboy Space logo
Sr. TCA Mechanical Design Engineer
12/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$185,000 - $210,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
5-Axis CNC Machining
Additive Manufacturing
CNC Machining
DFM/DFA (Design for Manufacturability & Assembly)
+2 more
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a Senior TCA Mechanical Design Engineer to own the lifecycle of rocket engine injector, combustion chamber, and nozzle hardware. The role focuses on design-for-manufacturability, advanced fabrication methods, and hotfire testing. On-site in Seattle, WA.

Cowboy Space logo
Flight Termination System Engineer
13/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$157,000 - $206,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Guidance, Navigation & Control
MATLAB
Python
Posted 2 weeks agoSee job

Own the Autonomous Flight Termination System (AFTS) end to end for Cowboy Space Corp., including range and FAA relationships, flight safety analysis, safety-critical avionics architecture, and certification. Set technical direction for the flight safety discipline and lead the qualification campaign.

Cowboy Space logo
Controls Engineer
14/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$160,000 - $200,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
C/C++
Controller Area Network
Hardware-in-the-Loop Testing
Kalman Filtering
+5 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is hiring a Controls Engineer to design motor controls, automation sequences, and embedded control systems for fluid systems in launch vehicles. The role involves developing closed-loop control, firmware, and HIL testing, with a focus on propulsion and thermal management.

Cowboy Space logo
Senior Manager Primary Structures
15/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$150,000 - $225,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Composites
Finite Element Analysis
Structural Analysis
Welding
Posted 2 weeks agoSee job

Cowboy Space Corp. seeks a Senior Manager of Primary Structures to own the design, build, and performance of launch vehicle primary structures including airframe, tanks, and thrust structure. This role requires 8+ years of structural engineering experience and leadership skills, offering $150k-$225k in Seattle, WA.

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Cowboy Space logo
Mechanisms Engineer - Landing Gear System
16/20Posted 2 weeks ago

Cowboy Space · Seattle, King County, Washington

$150,000 - $180,000
Onsite
Series B
$100M-$1B
Andreessen Horowitz (a16z)
Index Ventures
+1 more
Abaqus
ANSYS
CATIA
Creo
+7 more
Posted 2 weeks agoSee job

Cowboy Space Corp. is seeking a Mechanisms Engineer to own critical vehicle mechanism subsystems (e.g., landing gear, separation systems) from concept through flight. This hands-on role involves design, analysis, testing, and collaboration with propulsion, structures, and avionics teams to ensure mission success.

Cowboy Space logo
Sr. Accounting Specialist
17/20Posted 2 weeks ago

Cowboy Space · San Carlos, San Mateo County, California

$83,000 - $91,000
Onsite
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
Technical Program Manager, Avionics
18/20Posted 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
Sr. Controls Engineer
19/20Posted 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
Flight Software Engineer
20/20Posted 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.

Daily job alert

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

Narrow your alert

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