Embedded Software Engineer

Tokyo
Partial Remote
Full-time
April 30, 2026

Job description

Synspective’s Onboard Software Team is looking for a talented and motivated developer to join our team.

Responsibility/ Details of work

Design, develop, troubleshoot, and maintain multi-threaded C++ code on an embedded Linux system.
Support operations team and resolve in-orbit anomalies.
Verify new features and software changes on hardware-in-the-loop testing setups.
Contribute to design decisions, PR reviews, and propose future features and requirements.
Utilize and improve the CI/CD pipeline.
Collaborate within the team and externally with other teams to deliver functional software for our satellites.

Selling points of this role

Onboard Software is one of the most important parts of our satellite systems. Developing software for a system that is no longer accessible once launched provides a unique set of challenges where developers have to balance performance and hardware constraints with the high requirements for robustness, resilience, and functionality. This position offers the opportunity to take on interesting and challenging software work, with a certain degree of autonomy in how to execute on the software design. We are a supportive and friendly team, with diverse backgrounds and SMEs in a wide array of technical subjects, and cross team collaboration means you will gain exposure to other subsystems like satellite operations, hardware, and ground control.

Job requirements

3+ years experience in C++
3+ year(s) experience with developing for embedded systems such as embedded Linux, bare metal, or RTOS.
1+ year(s) experience with communication and networking protocols such as RS422, CAN, HTTPS, SSH, and SFTP
Familiarity with version control tools (Git, SVN, etc), ticketing systems (Redmine, JIRA, etc) and knowledge of CMake/Make or equivalent build tools.
Hands on experience with software testing (unit tests, hardware-in-the-loop, system)
Good understanding of design patterns and data structures
Strong problem-solving skills
Self-motivated and able to work collaboratively with a diverse team

Preferred qualifications

Experience with multi-threaded applications and troubleshooting race/deadlock conditions
Experience with U-boot, driver development, and/or FPGAs
Experience in the space/satellite industry or other high reliability systems
Experience configuring and modifying CI/CD pipelines
Familiarity with Yocto and recipes

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About Synspective

Synspectiveは、2018年2月に創業した、衛星データ解析によるソリューション提供および小型SAR （合成開口レーダー）衛星の開発・運用を行う宇宙スタートアップです。

宇宙スタートアップの多くがデータ解析や衛星機器開発など一部に特化するケースが多い中、Synspectiveはレーダー技術を利用するSAR衛星の開発・製造から、衛星データ解析・ソリューション提案までワンストップで行っているのが特徴です。

データに基づき、着実に進歩する世界の実現を目指し、衛星による観測データを活用したワンストップソリューション事業を行っています。内閣府「ImPACT」プログラムの成果を応用した独自の小型SAR衛星により高頻度観測を可能にする衛星群を構築し、その衛星から得られるデータの販売、および、それらを利用した政府・企業向けのソリューションを提供します。

「Human Centered Design for Company」として「個々人のパフォーマンスアップを中心として組織を設計する」ことを目指しています。そのため、スペシャリストが自律的に働くことができる柔軟な環境を提供し、メンバーが最高の仕事をするため自由に働けるようにしています。制限なしのリモートワーク制度、コアタイムなしのフレックスタイム制があり、パフォーマンスを発揮しやすい時間帯に働くことができます。

自律的でモチベーションの高い人材が集まる組織であるため、正社員が全員6か月契約です。目標管理と条件の見直しを6か月間をベースに行い、成果を出した人への評価はしっかり反映します。自由な働き方の自律型組織なので、自律的で向上心の高い方にとって働きやすい環境です！

Japanese Language Policy
Synspective’s Japanese skill requirements vary depending on the position and are defined in each job description.
Paid Leave
Synspective offers 10 days of paid leave that increase annually up to 20 days, in accordance with paid leave according to Japanese law. The company also observes all Japanese national holidays and provides 6 additional days off for the year-end holidays (from December 29th to January 3rd).
Benefits
💹 Employee stock option plan

💻 New tech gear

👩‍🎓 Skill development support

💛 Support for attending conferences

💜 Seminar participation support

👶 Parental Leave

🧡 Social security / insurance benefits included

🏥 Healthcare insurance

💚 Pension insurance
Work style
Full flex time with core time from 11:00AM to 3:00PM
Synergy of Spirit

As part of Synspective, we embark on this journey together, bringing with us our combined experiences and life. As a team, we recognize that the team’s goals are my personal goals, and my goals are the team’s goals. We each share a part of the responsibility to succeed. I constantly communicate to align my efforts with our goal. I manage my energy and time to maximize team performance. I give more than I take. I provide value when needed and I take responsibility for my own behavior.

Synthesis of Knowledge

We try to create new value under conditions that have huge uncertainty and volatility. The only way for us to succeed is to progress through trial and error that we learn from and make changes based on our new knowledge. I listen actively and respectfully to others’ opinions, consider it logically and examine my assumptions, and discuss it with my team constructively. I learn by doing and building upon our experiences. I aim to achieve better results with every new attempt. I accelerate the collective learning process by openly sharing experiences and knowledge with my team.

Synched with the Future

We have an obligation to create a sustainable future for the next generations. To do so, we must tackle tough challenges as pioneers, leaving our comfort zones that prevent our growth. I recognize that a smart failure is a step toward success and try to learn from the past to solve new issues in the future. I set aggressive goals and divide them into sprint-victories in order to continue to tangibly advance and make progress. I consider the future, prepare for it, and actively engage in making it happen with quick actions and decisions.