Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 72 days ago

Ground Systems engineer (SIL/PIL/HIL specialized)

iSpace, Inc.59 open roles

Where
Tokyo, Japan
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowGround Systems engineer (SIL/PIL/HIL specialized)iSpace, Inc. · Tokyo, Japan

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on iSpace, Inc.'s own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

7.8% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 1.7%1 day
  2. 3.5%3 days
  3. 7.8%7 days
  4. 14.6%14 days
  5. 34.1%30 days
This job: posted 72 days ago

The posting

ispace, inc. is looking for Ground Systems engineer to join our growing team in Tokyo.

The Ground Systems team forms the backbone of ispace’s Test and Flight Operations, responsible for designing, building, and maintaining the full infrastructure required to support mission testing and operations. This includes the Mission Control Center, Mission Control Software, operational tools, and the end-to-end test environments that enable mission readiness.As a Ground Systems Engineer, your work directly enables communication with the spacecraft and underpins every phase of mission test and execution. You play a pivotal role in ensuring that missions are conducted safely, reliably, and efficiently—designing and maintaining the infrastructure, software, and operational workflows that make real-time spacecraft operations possible. Your contributions not only ensure mission success, but also streamline operations and empower flight teams to perform at their best.

As a Ground Systems Engineer specialized in Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) platforms, you will design, develop, and maintain the simulation and validation environments used to test and verify the next generation of ispace spacecraft.

You will play a critical role in enabling a “Test-As-You-Fly” philosophy, ensuring that ground infrastructure and spacecraft testbeds faithfully replicate real mission conditions, providing a realistic and representative environment for validation and operations.

Type: Full-time Position

Location: Hybrid (Tokyo, Japan) On site at least twice a week with remote option

Experience Level: See Qualifications below

Group: JP Ground Systems Group, JP Test and Flight Operations Division

Why this role matters?

Key Responsibilities

  • Design, develop, and maintain SIL,PIL and HIL environments interfacing flight software team and avionics team
  • Integrate spacecraft Flight Software (FSW) with dynamic simulation models and hardware interfaces
  • Develop infrastructure for closed-loop testing, including telemetry generation and telecommand injection of simulator/EGSE equipment
  • Ensure scalability and flexibility of platforms to support multiple mission phases and test campaigns
  • Integrate SIL/PIL/HIL platforms with mission control systems (e.g., Yamcs, telemetry processing, commanding chains)
  • Support interfaces with ground segment components, including EGSE, communication links, and databases
  • Collaborate with avionics, GNC, and software teams to ensure accurate system representation
  • Maintain interface control and configuration consistency across simulation and operational systems
  • Enable execution of System Verification Tests (SVT) and pre-flight validation campaigns
  • Support traceability between requirements, test cases, and validation results
  • Develop tools for monitoring, logging, and replaying test results
  • Contribute to anomaly investigation and root cause analysis
  • Develop and maintain test automation frameworks and scripting tools (e.g., Python)
  • Implement CI/CD workflows for simulation environments and test execution
  • Support configuration management of simulation assets, FSW builds, and test scenarios
  • Optimize runtime performance and usability of test platforms
  • Develop, test, and validate operational procedures.
  • Participate in training activities and mission rehearsals to achieve certification for on-console operations.
  • Own and maintain Ground-to-Ground Interface Control Documents (ICDs), and contribute to Space-to-Ground ICDs with ground station providers.
  • Support test and on-console operations, including 24/7 shift work and on-call duties during critical mission phases.

Required skills

  • Language: Professional level English (written and verbal); Japanese is a plus
  • Experience: 5+ years of experience in spacecraft systems, ground systems, or simulation/test environments
  • Simulation & Integration: Experience with SIL, PIL, HIL, or mixed hardware-software environments
  • Software Skills: Proficiency in C++, Python, Gitlab CICD and real time simulations frameworks
  • Systems Understanding: Strong knowledge of spacecraft subsystems and telemetry/telecommand flows
  • Documentation: Ability to produce clear technical documentation, interface definitions, and test artifacts

Preferred skills

  • Experience with mission control systems (e.g., Yamcs, Grafana)
  • Familiarity with CCSDS protocols, telemetry processing, and commanding chains
  • Experience with avionics interfaces and EGSE
  • Knowledge of Git/GitLab and software configuration control practices
  • Experience supporting SVT and mission rehearsals
  • Background in lunar, deep-space, or planetary missions

We will prioritize candidates currently reside in Japan with valid working visa for the role. Relocation will be required for overseas candidate.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against iSpace, Inc.'s own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on iSpace, Inc.'s form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    iSpace, Inc.'s answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.