---
title: 'Software Engineer - Customer Integration (Network) at Sonatus'
canonical: 'https://feeny.ai/job/software-engineer-customer-integration-network-sonatus-pangyo-south-rsyt54wddv95'
type: 'job'
last_seen: '2026-09-11'
---

# Software Engineer - Customer Integration (Network) at Sonatus

- **Company:** Sonatus
- **Location:** Pangyo South, South Korea
- **Posted:** 2026-07-21
- **Last confirmed live:** 2026-09-11
- **Apply:** https://job-boards.greenhouse.io/sonatus/jobs/5191777007

## Job description

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 8 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

Mission-Driven Innovation: At Sonatus, we are redefining the future of Software-Defined Vehicles (SDV) through agility and innovation. 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.

Full-Stack Networking Ownership: This role is built around in-vehicle network (IVN) engineering—spanning the full technical stack: Physical & Data Link connectivity (Automotive Ethernet, TSN), Hardware Abstraction & Firmware (EHAL, Switch Firmware), Application & Diagnostic Protocols (SOME/IP, DoIP/UDS), and System-level Network Security (Linux Network Stack Hardening & Traffic Control). You'll own the network path from implementation through verification, ensuring reliable, high-performance in-vehicle communication in real production vehicles.

Two Paths to Join: Who We're Looking For

- Experienced Network Engineers: We prioritize candidates with established in-vehicle network expertise who can take immediate ownership of switch firmware, EHAL, and network security, serving as the technical contact for customers and OEM architects.
- Embedded Software Specialists: We also highly welcome strong embedded software engineers with a solid foundation in Ethernet and networking who are eager to specialize. You will be supported by your squad to grow into this deep expertise, contributing to production-level development and verification from day one.

Bridge Between Worlds: In both cases, you will serve as a key technical bridge between development and real-world deployment, resolving critical issues and ensuring high-performance, reliable in-vehicle communication—from implementation all the way to verification.

Duties and Responsibilities

1. Squad Mission Contribution

- 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.

1. In-Vehicle Network Engineering

- Development: Design and develop high-performance C/C++ embedded software; this involves developing the Ethernet Hardware Abstraction Layer (EHAL) and implementing switch and Ethernet driver/control logic for Automotive Ethernet networks.
- Network Design: Define and maintain the in-vehicle network design—topology, VLAN/QoS, and the communication matrix—and bring up new ECUs and switches on the network.
- Configuration & Security: Configure and harden the in-vehicle network for secure, high-performance communication across Automotive Ethernet and connected buses (CAN/CAN-FD).
- Verification: Diagnose network integration issues through packet and protocol analysis, and validate network performance (latency, jitter, bandwidth) against defined requirements.
- Integration Ownership: Serve as the technical owner of in-vehicle network integration, working closely with OEM network architects and customer engineering teams.

1. Quality Ownership

- QA Ownership: Champion a culture of total ownership. You define "Done" not merely by implementation, but by delivering software that is Production-Ready and rigorously validated.
- Maintain CI/CD pipeline: Actively troubleshoot and resolve build/test failures in the CI/CD pipeline as if they were your own code errors.
- Test Automation: 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—so the software is accessible, maintainable, and seamlessly integrated by customers.
- Peer 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.

1. AI-Augmented Workflow

- 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.

1. Customer Support

- On-site Support: Support major test events with partners on-site, utilizing packet analysis and diagnostic tools (e.g., Wireshark, Vector CANoe, traffic generators, and PHY/physical-layer analyzers) to troubleshoot and resolve complex network performance, timing, and connectivity issues across Automotive Ethernet, TSN, and gateway paths (CAN/CAN-FD, LIN) within vehicle or test bench environments.
- Technical Communication: Serve as a primary technical contact for integration issues, providing deep-dive analysis on network configurations, switch/VLAN and firewall setups, service and diagnostic protocol behavior (SOME/IP, DoIP/UDS), and security mechanisms (MACsec, SecOC), and troubleshooting network-related anomalies to provide clear guidance for customer engineering teams.

## Qualifications and Experience

[Foundation: Development Skills]

- Experience: 3+ 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.
- Network interest: Genuine interest in in-vehicle networking, and a working understanding of TCP/IP and Ethernet fundamentals.

[The role, two tracks — we welcome candidates on either path]

Track A — Experienced In-Vehicle Network Engineer

You already bring deep, hands-on networking expertise, such as:

- Automotive Ethernet: Deep expertise in 100/1000BASE-T1 (and 10BASE-T1S for zonal architectures) and in-vehicle network architectures.
- Network Switch Control & EHAL: Hands-on development of the Ethernet Hardware Abstraction Layer (EHAL) and switch driver/control logic, including the Linux DSA switch framework and PHY/MAC bring-up.
- TSN & Time Sync: Time-Sensitive Networking—gPTP/802.1AS time synchronization, Time-Aware Shaper (802.1Qbv), Credit-Based Shaper (802.1Qav), and frame preemption (802.1Qbu).
- Service & Diagnostic Protocols: SOME/IP and SOME/IP-SD (service discovery), and diagnostics over IP—DoIP (ISO 13400) and UDS (ISO 14229).
- Gateway & Legacy Buses: Routing and gateway design between CAN/CAN-FD, LIN, and Automotive Ethernet.
- Network Security & Configuration: Proficiency in the Linux network stack (iptables/netfilter, tc/qdisc, firewalls, VLAN management), plus automotive security mechanisms such as MACsec (802.1AE) and Secure Onboard Communication (SecOC).
- Troubleshooting & Tools: Packet tracing and protocol analysis with Wireshark/tcpdump, Vector CANoe/CANalyzer

Track B — Embedded Engineer Growing into a Network Specialist

You have a strong embedded/firmware foundation and are eager to build the expertise above. We're looking for evidence you can get there fast:

- Solid embedded C/C++ and Linux fundamentals (see Foundation above).
- Some exposure to networking—course work, side projects, or prior tasks involving Ethernet, TCP/IP, sockets, or network drivers.
- A clear motivation to specialize in automotive networking (Automotive Ethernet, TSN, SOME/IP, network security) and a demonstrated ability to learn complex, low-level systems quickly.

[Key Differentiator: QA Capability & Mindset]

- 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?"

## Preferred Knowledge and Experience

[Automotive Standards & Quality]

- 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 & Tools]

- 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.

## Benefits & Perks

Benefits Offered:

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

Perk Offerings:

- 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

Employee Engagement Offerings:

- 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.

## About Sonatus

## Company Overview
- **One-liner**: Sonatus delivers an AI-powered software platform for software-defined vehicles, enabling OEMs and suppliers to reduce costs, accelerate time-to-market, and continuously improve vehicles across their lifecycle.
- **Entity Type**: Private (venture-backed)
- **Headquarters**: Sunnyvale, California, USA
- **Founded**: 2018
- **Founders**: Jeff Chou (CEO) and Yu Fang (CTO)

## Core Business
- **Primary industry/industries**: Automotive software, artificial intelligence, software-defined vehicles (SDVs)
- **Target customers**: Global automakers (OEMs) and Tier 1 suppliers (B2B, Enterprise)
- **Mission or purpose statement**: To simplify and accelerate the digital transformation of the automobile by building AI-native software that spans the full vehicle lifecycle.

## Products & Services
- **Sonatus Foundation**: A flexible vehicle software architecture that provides the foundational platform for building and evolving software-defined vehicles.
- **Sonatus Collector AI**: Enables dynamic, intelligent data collection from vehicles to drive continuous improvements and insights.
- **Sonatus AI Director**: An end-to-end toolchain for developing, deploying, and monitoring in-vehicle edge AI models.
- **Sonatus AI Technician**: AI-powered diagnostic assistants that support pre-production testing through post-sales services.
- **Sonatus Updater**: Secure, predictable management of vehicle software updates with end-to-end traceability.
- **Sonatus Automator AI**: A no-code solution for accelerating time-to-market and enabling rapid innovation.

*All products are software/SaaS or platform-based, delivered as a combination of in-vehicle software and cloud services.*

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (private company)
- **Key Metric**: Technology deployed in **over 8 million vehicles** globally (as of 2025/2026) – [sonatus.com](https://www.sonatus.com/)
- **Notable Investors/Partners**: Backed by investors in the automotive, semiconductor, and venture capital sectors (specific names not publicly named on the website); partners with leading global automakers and Tier 1 suppliers.
- **Growth Signals**: Rapid expansion with offices in 12+ countries (USA, Canada, Ireland, France, Germany, Poland, India, China, Taiwan, South Korea, Japan, Philippines); ~300 employees (Built In); actively hiring across engineering, AI, and customer success roles.

## Competitive Advantages
- **AI-native from the ground up**: Unlike legacy automotive software providers, Sonatus built its platform specifically for AI-defined vehicles, enabling deeper integration and better performance.
- **Proven scale and trust**: Already deployed in millions of production vehicles from top global OEMs, demonstrating reliability and safety in real-world conditions.
- **Full lifecycle coverage**: Spans pre-production testing, production, and post-sales services – a rare end-to-end offering.
- **Agile integration**: Collaborates closely with OEMs and Tier 1s, using agile methods that complement traditional automotive development processes.

## Strategic Focus
- **Expand AI capabilities**: Continuing to develop agentic AI, data analytics, and automation tools for the vehicle edge and cloud.
- **New revenue streams**: Helping automakers unlock value-added services and business models based on vehicle data.
- **Global scaling**: Deepening presence in key automotive markets (Europe, Asia, North America) while hiring top AI and engineering talent worldwide.

## Why Work Here
- **Mission-driven challenges**: Employees work on cutting-edge AI and automotive problems that directly impact the future of mobility.
- **Hybrid work model**: Offices in Sunnyvale, Dublin, Paris, Seoul, and more; hybrid policy typically requires 3 days in-office per week, with some roles fully remote.
- **Collaborative culture**: Described as "talented and diverse" with specialists from automotive, data centers, semiconductors, and enterprise software.
- **Growth opportunity**: Well-funded and rapidly growing company with a proven product in production, offering the stability of a mature startup with the excitement of scaling.
- **Global presence**: Multiple office hubs and remote-friendly roles across North America, Europe, and Asia provide flexibility.

## Sources
1. [Sonatus Official Website – About](https://www.sonatus.com/company/)
2. [Sonatus Official Website – Products](https://www.sonatus.com/)
3. [Sonatus Careers Page (Greenhouse)](http://job-boards.greenhouse.io/sonatus)
4. [Sonatus Careers Page – Locations](https://www.sonatus.com/company/careers/)
5. [Built In Profile – Sonatus](https://builtin.com/company/sonatus)

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