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Senior Software Engineer Test Infrastructure

Loft Orbital Solutions

Job Location:

Toulouse - France

Monthly Salary: Not provided by the employer

Posted: 6 November 2026 (Yesterday)

Application Deadline: 3 February 2027

Vacancies: 1 Vacancy

Job Summary

Wanna join the adventure

At Loft Orbital we have just successfully launched multiple satellites that we fly and operate ourselves. With these satellites in orbit and a wave of exciting missions launching soon we are scaling up quickly as a global company.

We are looking for a Test Infrastructure Engineer to join the team building and maintaining Lofts test infrastructure internationally across our Golden CO and Toulouse France sites.

About this role:

As a Test Infrastructure Engineer you will primarily help design develop and deploy our test infrastructure and the tools for automating both our hardware and software testing which will help us scale as a between the spacecraft and all the other teams you will have a big impact in ensuring that every element of our satellite works without any are looking for engineers with a product mindset who have a good understanding of embedded systems networking data exchange protocols and experience with setting up software infrastructures. Additionally we are looking for someone who is:

Able to work independently with some guidance. People owning their work is important to us!
Able to wear multiple hats as needs arise. We are a small company disrupting an entire industry!
Not afraid to get out of their comfort zone to explore and learn. Technologies are evolving at rapid rates and we must stay relevant!

Key responsibilities include:

Design build deploy and maintain high-fidelity Hardware-in-the-Loop (HIL) testbeds that emulate spacecraft systems sensors and communication links.
Design build deploy and maintain Electrical Ground Support Equipment (EGSE) that interfaces with space vehicles under Assembly Integration & Tests allowing Validation and Verification of spacecrafts and their software before their launch campaigns.
Develop tools and frameworks that allow teams to simulate faults edge cases and mission scenarios that are difficult or costly to reproduce with physical hardware alone.
Work closely with systems software hardware and operations teams to understand evolving test requirements and integrate feedback into the platforms.
Maintain and extend test infrastructure to support continuous integration (CI) pipelines ensuring every code change is validated with realistic system-level tests.
Troubleshoot complex system issues spanning software embedded hardware networking and system configuration.

Our culture at Loft Orbital promotes collaboration and ownership among our developers fostering efforts hand in hand with other teams internally and externally.

Must Haves:

2 years working with Linux systems including configuration debugging and system-level troubleshooting.
Strong understanding of networking fundamentals (OSI layers packet analysis data exchange protocols like TCP/IP and UDP).
Hands-on experience with embedded systems or low-level hardware (Raspberry Pi Arduino microcontrollers or similar).
Proficiency in Python (3.9) for building test automation frameworks device drivers or test orchestration tools.
Experience containerizing applications with Docker.
Familiarity with at least one modern CI tool (e.g. Jenkins GitLab CI Buildkite CircleCI) and integrating test pipelines.

Nice to Haves:

Experience designing or automating complex HIL/SIL testbed signal conditioning fault injection or hardware emulation.
Experience with Infrastructure-as-Code systems specifically NixOS.
Familiarity with networking simulation tools (e.g. network emulators virtual switches) for testing data flows under realistic mission constraints.
Interest or experience with hardware test automation frameworks (e.g. custom Python-based test rigs).
Masters degree in Computer Science or a similar field.

Some of Our Awesome Benefits:

Equity we want you to have an active role in our success
Up to 35 days of Paid Time Off (vacations & RTT ) and flexible working hours we want you to be at your best
Health and life insurance we care about your health
Lunch Vouchers because lets be honest we love food! (we even have a slack channel about it #loft-gourmand)
Cross-office travel opportunities between San Francisco Colorado and Toulouse to learn from our differences
Company and team off-sites and many other events to work & celebrate together
Relocation assistance to Toulouse when applicable

*Research shows that while men apply to jobs where they meet an average of 60% of the criteria women and other underrepresented people tend to only apply when they meet 100% of the qualifications. At Loft we value respectful debate and people who arent afraid to challenge assumptions. We strongly encourage you to apply even if you dont check all the boxes.

Who We Are

Loft: Space Made Simple.

Founded in 2017 Loft provides governments companies and research institutions with a fast reliable and simple way to deploy missions in orbit.

We integrate launch and operate spacecraft offering end-to-end missions as a service across Earth observation IoT connectivity on-orbit AI national security missions and more. Leveraging our existing space infrastructure and an extensive inventory of satellite buses Loft is reducing years-long integration and launch timelines to months. With more than 30 missions flown Lofts flight heritage and proven technologies enable customers to focus on their mission objectives.

With a growing fleet on track to reach 30 satellites by 2027 we are scaling up quickly across our offices in San Francisco CA Golden CO and Toulouse France to meet accelerating demand for space infrastructure.

As an international company your resume will be reviewed by people across our offices so please attach a copy in English.

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

Senior IC

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