eSOL Tech Stack

Embedded RTOS and automotive software platform for safety-critical systems

Software Development Nakano-ku, Tokyo 501–1,000 employees Founded 1975 Public Company

eSOL develops eMCOS, a multikernel real-time operating system used in automotive, industrial, medical, and aerospace applications. The tech stack is anchored in embedded fundamentals—C, C++, Arm, RISC-V, Linux—paired with automotive-specific standards (AUTOSAR) and tooling (GDB, Eclipse, Jenkins). Hiring is concentrated in engineering and product roles across Japan, with a notable emphasis on senior-level positions, suggesting both deep technical work and leadership scaling alongside their active roadmap in autonomous driving and OTA software updates.

Tech Stack 32 technologies

Core StackC++ Linux GitHub GitLab Jira Jenkins GitHub Actions CircleCI Confluence Slack Zoom AUTOSAR Renesas NXP Infineon Windows GDB Eclipse Visual Studio Code Arm Cortex-A RISC-V Git Subversion Redmine PyCharm Notion Google Docs Teams C RTOS+1 more

What eSOL Is Building

◆Challenges

Process standardization efficiency
Strengthening product management structure
Improving project visibility
Reducing project risk
Cost quality delivery optimization
Standardizing project processes
Enhancing project cost control

▲Active Projects

Emcos development project
Autonomous driving platform development
Software ota updates
In-house automotive software product development
Autosar classic platform compliant software development
Rtosデバッガ/アナライザ開発
Procurement process systematization
Company-wide procurement optimization
Vehicle connectivity security
Rtos debugger and analyzer development

Hiring Activity

Accelerating15 roles · 7 in 30d

Department

Engineering

Product

Ops

Procurement

Seniority

Senior

Mid

Director

Manager

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About eSOL

eSOL is a Tokyo-listed embedded systems and edge computing company founded in 1975, operating as an independent vendor focused on safety-critical and real-time software platforms. The core product is eMCOS, a patented multikernel RTOS deployed globally in automotive systems, industrial equipment, medical devices, satellites, and consumer electronics. The company serves OEMs and tier-1 suppliers requiring compliance with stringent quality and safety standards. With approximately 500 employees, eSOL maintains an active R&D operation and participates in standardization bodies for AUTOSAR, Autoware, and multicore technologies. Current development priorities include autonomous driving platforms, RTOS debugger/analyzer tooling, and in-house automotive software products.

HeadquartersNakano-ku, Tokyo

Company Size501–1,000 employees

Founded1975

Hiring MarketsJapan

Frequently Asked Questions

What is eSOL's core technology?

eMCOS, a patented multikernel real-time operating system (RTOS) designed for embedded and safety-critical systems across automotive, industrial, medical, aerospace, and consumer electronics applications.

What programming languages does eSOL use?

Primary languages are C and C++, with support for Arm Cortex-A and RISC-V architectures. Development toolchain includes Eclipse, Visual Studio Code, GDB, and industry standards like AUTOSAR.

Where is eSOL headquartered and hiring?

eSOL is headquartered in Nakano-ku, Tokyo, Japan, and currently hiring exclusively in Japan across engineering, product, and operations departments.