Employment Opportunities at Tethers Unlimited, Inc.

Tethers Unlimited is an aerospace and defense R&D firm located in Bothell, WA. We are currently developing a number of advanced technologies for space and defense systems, including deployable structures for small spacecraft, on-orbit manufacturing technologies, in-space propulsion systems, and RF communications and sensing. Tethers Unlimited typically takes on projects that are out-of-the-box and extremely technically challenging, so to work here you must be creative, very hard working, and committed to producing the highest quality work. You also must be able to work efficiently as a part of a fast-paced, interdisciplinary team, and document and communicate your work clearly.


Electrical Engineer - Avionics

Tethers Unlimited, Inc. (TUI) is looking to hire an ambitious and self-motivated electrical engineer to help design and build a series of software-defined radio products. We are looking for an EE with experience working with high-speed mixed-signal embedded systems either in the industry or in an R&D laboratory environment. Experience with any or all of the following is desired:

  • Designing and building RF communications systems
  • High-speed analog and digital signaling
  • Embedded and DSP software design using FPGAs (Xilinx preferred)
  • High-level embedded software design and implementation in C/C++ using real-time operating systems
  • PCB design and layout (Mentor Graphic’s PADS preferred)

A strong candidate will have at least a BSEE and experience designing, building, and testing real hardware at the brassboard level in addition to using software simulation tools. Good communication skills and above all a desire to learn new skills and apply existing knowledge to unique and challenging problems is a must.


Flight Software Engineer


TUI is seeking a Flight Software (FSW) Engineer to design, develop, integrate, test and document embedded spacecraft FSW, as well as supporting ground support equipment (GSE) and user interface software for satellite components and subsystems including but not limited to software defined radios, spacecraft computers, robotics, and mechanisms


Responsibilities may include:
  • Design, develop, integrate, test, and document embedded software programs using VHDL  for field programmable gate arrays (FPGAs);
  • Design, develop, integrate, test, and document embedded software programs using C/C++ on real time operating system;
  • Develop design documentation and presentations for work products to support peer reviews and major design reviews;
  • Support the task lead to coordinate schedule and deliverables;
  • Support test bed development and operation;
  • Develop ground tools and utilities to facilitate flight software configuration and operations (I.e. Command & telemetry (C&T) database, flight software configuration table tools, etc.;
  • Applies the appropriate standards, processes, procedures, and tools throughout the system development life cycle to support the generation of engineering applications and products;
  • Works with system lead to develop test scenarios, conduct verification and validation test procedures and analysis of test results.

Minimum Requirements

  • BSCS, BSCE, BSEE or other directly relevant Bachelors degree required.
  • A minimum of 4 years of relevant experience with a B.S., or 2 years with a M.S.
  • Position can be filled one level lower with a B.S. and a minimum of 1.5 years of relevant experience or a M.S.
  • Ability to acquire a Security Clearance, which requires US Citizenship as a pre-requisite
  • Some travel anticipated.

Desired Skills:

  • Relevant experience in the software development process in an embedded development environment.
  • Experience in the aerospace industry performing Flight Software development and testing. General understanding of space vehicle embedded software, Command and Telemetry protocols and space to ground communication formats.
  • Strong understanding of OO and design pattern principles. Knowledge of LabView, C# or other computer languages and scripting languages are desired.
  • Must possess good understanding of hardware/software interfaces.
  • Disciplined in the use of software versioning control tools and issue tracking tools. Working knowledge of Subversion and JIRA are desirable.





TUI is an Equal Opportunity Employer. Resumes should be submitted by email in PDF Format ONLY to jobs@tethers.com

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