Sonatus
Sonatus4d ago

Senior Customer Integration Engineer

South KoreaSeoulsenior
EngineeringCustomer SupportCustomer Integration Engineer
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Quick Summary

Key Responsibilities

Design and develop high-quality C/C++ embedded software based on customer

Requirements Summary

Design Python-based test cases and build automation frameworks to verify both your own code and the squad’s deliverables. Documentation: Treat documentation as code.

Technical Tools
EngineeringCustomer SupportCustomer Integration Engineer

At Sonatus, we’re driving the transformation to AI-enabled software-defined vehicles. Traditional automotive software methods can’t keep pace with consumer expectations shaped by the mobile industry—where features evolve rapidly, update seamlessly, and improve continuously. That’s why leading OEMs trust Sonatus to accelerate this shift. Our technology is already in production across more than 6 million vehicles on the road today and rapidly expanding.

Headquartered in Sunnyvale, CA, with 250+ employees worldwide, Sonatus combines the agility of a fast-growing company with the scale and impact of an established partner. Backed by strong funding and proven by global deployment, we’re solving some of the most interesting and complex challenges in the industry. Join us and help redefine what’s possible as we shape the future of mobility.

About the Role

~1 min read

At Sonatus, we are redefining the future of Software-Defined Vehicles (SDV) through agility and innovation. To achieve this, we operate as Mission-Driven Squads, where each team takes full end-to-end ownership of a specific module to deliver production-ready software with speed and precision.

We are looking for a Customer Integration Engineer to join one of our squads (e.g., Secure Network, Data Hub) as a core member. In this role, you will go beyond traditional coding; you will act as a Full-Cycle Engineer who ensures the quality and reliability of the features you build.

This position is ideal for an experienced C/C++ developer who is passionate about delivering excellence. By leveraging AI tools like GitHub Copilot and Claude, you will drive the entire engineering lifecycle—from implementation to verification—safeguarding the integrity of our software for millions of vehicles on the road.

 

Responsibilities

~1 min read
  • Work under the guidance of the Squad Lead to execute the full engineering lifecycle—from Implementation to Verification.
  • Switch roles flexibly based on the squad’s goals (e.g., focusing on feature development in one sprint, and shifting to verification tasks in the next) to ensure the mission is accomplished.
  • Development: Design and develop high-quality C/C++ embedded software based on customer requirements.
  • Verification: Design Python-based test cases and build automation frameworks to verify both your own code and the squad’s deliverables.
  • Documentation: Treat documentation as code. Create and maintain detailed technical documentation—including APIs, dependencies, and integration guides—to ensure the software is accessible, maintainable, and seamlessly integrated by customers.
  • Review: Participate in Code Reviews not just for logic, but with a focus on Testability and Safety, ensuring the code is robust before it merges.
  • Champion a culture of total ownership. You define "Done" not merely by implementation, but by delivering software that is Production-Ready and rigorously validated.
  • Actively troubleshoot and resolve build/test failures in the CI/CD pipeline as if they were your own code errors.
  • Leverage AI tools such as GitHub Copilot and Claude to maximize productivity.
  • Use AI to lower the barrier for cross-functional tasks (e.g., generating test scenarios for complex logic, or debugging unfamiliar code), allowing you to focus on high-value engineering challenges.
  • On-site Support: Support major test events with partners on-site (domestic/international), troubleshooting integration issues directly in vehicle or test bench environments to ensure successful deployment.
  • Technical Communication: Serve as a primary technical contact for integration issues, translating complex engineering concepts into clear guidance for customer engineering teams.

 

Requirements

~1 min read
  • Experience: 6+ years of experience in embedded software development or engineering.
  • Core Language: Proficiency in C/C++ programming (strong understanding of pointers, memory management, and data structures).
  • OS Environment: Solid experience in development and debugging within a Linux environment.
  • Scripting: Experience using Python for writing test scripts or automating engineering tasks.
  • Testing Willingness: A flexible attitude with a strong belief that "Testing is Engineering." You are willing to balance your time between Dev and QA tasks (even up to 50:50) depending on the squad's needs.
  • Critical Thinking: Ability to look beyond the "Happy Path" and critically ask, "Is this truly safe for the user?"

Nice to Have

~1 min read
  • Standards & Audit: Experience in automotive design reviews and audit processes based on standards such as ISO 26262 (Functional Safety), Automotive SPICE (ASPICE), or ASIL.
  • Code Quality Analysis: Experience adhering to MISRA C/C++ coding standards and using static analysis tools such as Coverity, Polyspace, or similar products to manage code quality.
  • Collaboration: Experience working in Cross-functional Squads or Agile/Scrum environments.
  • Tools: Proficiency with Jira/Confluence and Git-based workflows (Branching, Pull Requests).
  • Frameworks: Experience with Unit/Integration test frameworks (e.g., PyTest, GoogleTest).
  • Network Protocols: Deep understanding of automotive communication protocols (Ethernet, CAN, SOME/IP).
  • Adaptability: Eagerness to learn and adopt new technologies and AI tools to enhance workflow efficiency.

 

What We Offer

~1 min read

What We Offer

~1 min read
Competitive compensation and equity program
Support 4 social insurance plans
Family leave (Maternity, Paternity)
Hybrid office work-arrangement/flexibility

What We Offer

~1 min read
Complimentary lunch/dinner, snacks and beverages during on-site working days
Wellness benefit allowances (towards gym membership and fitness programs)
Phone & Internet reimbursement
Computer Accessory Allowance
Annual Appreciation Gift
Annual Health Checkup
Support English class
  • Departmental team building and outings
  • Employee Referral Program
  • Culture/Employee Satisfaction Surveys - Feedback matters!
  • Innovative Award Program (annual)

 

Sonatus is a fast-paced and innovative company and is seeking team members who are passionate about making a difference. If you are ready to take your career to the next level, we highly encourage you to apply.

 

 

Listing Details

Posted
April 14, 2026
First seen
March 26, 2026
Last seen
April 18, 2026

Posting Health

Days active
23
Repost count
0
Trust Level
74%
Scored at
April 18, 2026

Signal breakdown

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Sonatus
Sonatus
greenhouse

Sonatus is accelerating vehicle software innovation, enabling automakers to achieve the full promise of software-defined vehicles.

Employees
125
Founded
2018
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SonatusSenior Customer Integration Engineer