---
title: 'Backend Software Engineer (C++) at Mujin'
canonical: 'https://feeny.ai/job/backend-software-engineer-c-mujin-tokyo-z35k77dq32fg'
type: 'job'
last_seen: '2026-09-09'
---

# Backend Software Engineer (C++) at Mujin

- **Company:** Mujin
- **Location:** Tokyo, Japan
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2023-03-09
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.lever.co/mujininc/623399ba-3b39-49d0-b4b9-09f9dc23ff77

## Job description

Mujin is a global leader in industrial automation, redefining supply chain efficiency through MujinOS—our intelligent operating system for robotics. At our core is Machine Intelligence (MujinMI), a unique approach that leverages real-time digital twins and advanced perception, planning, and control algorithms to achieve fully autonomous operations. Our flagship product, MujinController, empowers users with a highly configurable, no-code interface. By integrating cutting-edge motion planning and computer vision, it enables seamless automation for complex applications such as palletizing, picking, and truck unloading. Headquartered in Japan with a growing presence in the US, China, and Europe, we invite you to join a dynamic environment where you can shape the future of automation.

We are looking for a Backend Engineer to design, build, and own the core backend systems that power our industrial robotics platforms. In this role, you will take end-to-end ownership of backend components supporting robot controllers, working close to hardware, sensors, and operating systems to deliver reliable, high-performance systems in real-world production environments. You will design and operate low-latency services, data-intensive pipelines, and robust communication paths that directly influence system behavior on the factory floor. This role requires strong systems thinking, a focus on performance and reliability, and the ability to drive improvements independently across complex, evolving systems.

## Responsibilities

Design and own backend systems for industrial robotics platforms Take end-to-end ownership of backend components supporting industrial robot controllers Design, implement, and maintain reliable backend services and APIs with strong focus on performance and stability Work on low-latency communication paths, including high-performance HTTP services and inter-process communication (e.g., ZeroMQ) Integrate and support sensor-driven data flows Develop and maintain backend components that interface with sensors such as 3D cameras and other industrial devices Work with sensor SDKs, drivers, and APIs to ensure predictable data ingestion and behavior Debug issues that span application logic, OS behavior, and device interaction Build and operate data-intensive backend pipelines Own and continuously improve high-performance data pipelines that influence system-wide behavior Design database usage and data access patterns with strong awareness of scale and efficiency Contribute to defining, validating, and improving system metrics and KPIs Drive system reliability and operational excellence Diagnose and resolve complex production issues across multiple system layers Contribute to controller provisioning, reset, and upgrade workflows with a focus on stability and predictability Improve observability, diagnostics, and operational tooling to reduce long-term operational risk Solve complex, real-world engineering problems Operate effectively in complex systems with evolving requirements and constraints Make architectural and design decisions balancing performance, reliability, and maintainability Drive improvements independently, from problem identification through implementation and rollout

## Minimum Qualifications

- BSc degree or higher in Computer Science, Computer Engineering, or related fields, or equivalent academic or work experience
- Excellent experience and high proficiency in C++ and Python
- Advanced Linux user, excellent experience in Linux software development
- Expert in Linux internals, networking stack, network protocols, routing, async I/O, Docker and its internal workings
- Experience in full-stack development
- Technical communication skills in English

## Preferred Qualifications

- Expert in real-time OS, Linux kernel module development, EtherCAT
- Experience in robotic software development

Ideal Candidates

- We are looking for individuals who are ready to take ownership of challenging problems, work proactively and independently, and collaborate closely with team members across the organization.
- You will work hands-on across the industrial robot controller stack, rather than being limited to a single component, and will tackle problems that may be new or unfamiliar, often requiring deep investigation and learning.
- Since this work has broad impact across the engineering organization, Backend System Engineers play a key role and collaborate closely with many teams.

Interview Process:

- Coding Assessment: Initial technical evaluation.
- HR Interview: Discussion with Human Resources.
- Hiring Manager Interview: One or two rounds with the hiring manager.
- Take-Home Assignment & Feedback Interview (If Applicable): A task to complete on your own, followed by a feedback session.

Location 3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan Work Hours 8:45 - 17:45 (with a 60-minute break) Salary Based on experience and skills Salary revision twice a year Additional bonuses are available based on performance Holidays Every Saturday and Sunday Annual paid leaves Maternity leave and Childcare leave Flex Holiday (take public holidays on days of your choice) Other holidays as defined by the company Company Benefits Exploring Mujin Perks & Welfare Benefits Flexible dress code policy Commuting allowance Japanese Social Security (Health Insurance, Pension, Labor Insurance) Monthly team dinner support Free buffet lunch every workday Free vending machines (offering drinks and snacks) High-end coffee machine Exclusive Employee Gym Access Japan Relocation Support Visa sponsorship Flight ticket support Shipping expenses coverage up to a specified limit Assistance for housing

## About Mujin

## Company Overview
- **One-liner**: Mujin develops intelligent robotics automation platforms that use a "teachless" no-code approach to make robots capable, easy to deploy, and simple to operate in logistics, manufacturing, and beyond.
- **Entity Type**: Private (Series C)
- **Headquarters**: Tokyo, Japan
- **Founded**: 2011
- **Founders**: Ross Diankov (CEO), Issei Takino

## Core Business
- Primary industry: Industrial robotics and automation
- Target customers: Warehouses, distribution centers, manufacturers (primarily Enterprise and B2B); also serves robotics integrators
- Mission statement: To solve the shortage of manual labor by deploying intelligent robotics automation that raises productivity around the world

## Products & Services
- **MujinOS**: A no-code, teachless platform for robot control and deployment. Integrates perception, planning, and control algorithms with a real-time digital twin. Compatible with top robot and tooling brands.
- **Palletizing**: Automated case stacking with high-speed, stable pallet builds for any SKU mix.
- **Depalletizing**: Perception-driven robots that unload pallets and handle complex mixed-SKU challenges.
- **Mixed-Case Fulfillment**: Robotic case picking and pallet building for store-ready orders.
- **Bin Picking**: Robots pick loose items from bins using advanced 3D vision.
- **Piece Picking**: Each-pick automation for e-commerce and distribution.
- **TruckBot**: Container and trailer unloading robot (debuted at ProMat 2023).
- **Fleet Coordination**: Syncs AGVs and AMRs with pick-and-place workflows through a single fleet module.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed as a private company (latest major round was $83.4M Series C in 2023, per CB Insights).
- **Key Metric (Funding)**: Over $107.4M in total known equity funding (Series A: ¥75M JPY, Series B: $6M, Series C: $83.4M + $18M). Also secured ¥15.5B JPY in debt financing (Dec 2025).
- **Notable Investors**: SBI Investment (led Series C), UTEC (The University of Tokyo Edge Capital Partners).
- **Growth Signals**: Employs 146 people (+5% YoY, +17 people); offices in 5 countries (Japan, USA, China, Netherlands, South Korea); 103 active job postings (+49.3% YoY); revenue $6.9M; recognized with the RBR50 Innovation Award; operates in 9 countries by workforce distribution.

## Competitive Advantages
- **Teachless technology**: Their "MujinMI" (Machine Intelligence) allows robots to think and move autonomously without being taught every motion — a fundamental differentiator from traditional industrial robots that require programming.
- **No-code platform**: MujinOS enables deployment without writing code, lowering engineering costs and accelerating timelines.
- **Brand-agnostic integration**: Compatible with robots and tooling from multiple manufacturers, so it fits into existing operations without vendor lock-in.
- **Strong Asia + global footprint**: Deep roots in Japan and China combined with expanding operations in North America and Europe.

## Strategic Focus
- Continue expanding globally with offices in the Netherlands (Eindhoven) and a growing presence in the U.S. (Atlanta, GA).
- Scale intelligent robotics solutions for large logistics and manufacturing customers.
- Push further into full warehouse and factory workflows (e.g., TruckBot for automated unloading).
- Deepen the MujinOS platform as the global standard for intelligent robotics.

## Why Work Here
- **Mission-driven**: Tackling critical global labor shortages with cutting-edge technology.
- **Engineering-heavy culture**: 92 of 146 employees are in technical roles — a true engineering-first company.
- **Global, diverse team**: Colleagues from Japan, U.S., China, Netherlands, Switzerland, France, South Korea, and more.
- **Top talent hiring from**: Carnegie Mellon, Stanford, The University of Tokyo, plus alumni from Google, Microsoft, Woven by Toyota, and Preferred Networks.
- **On-site in Tokyo**: Most roles listed as full-time in Tokyo at their HQ, but also opportunities in Atlanta, Guangzhou, and Eindhoven.
- **Active growth**: 103 open jobs across software engineering (C++, Python, Computer Vision, Robotics), integration, and other roles.

## Sources
1. [mujin-corp.com](https://mujin-corp.com/company)
2. [mujin-corp.com](https://mujin-corp.com/)
3. [jobs.lever.co](https://jobs.lever.co/mujininc)
4. [linkedin.com](https://www.linkedin.com/company/mujin-global)
5. [cbinsights.com](https://www.cbinsights.com/company/mujin)

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