Career Opportunity for a Backend Engineer in Japan! 

■ Backend Engineer

■ Company Overview

A fintech company has grown rapidly and is widely used as a payment platform by about half of smartphone users in Japan. It also offers simple, everyday investment services through a mobile app, making asset management easy and accessible. As part of a larger group, the company is rapidly improving its products and driving the adoption of cashless payments and digital financial services in Japan. It is looking for professionals who are proactive, collaborative, and passionate about creating new value.

■ Your Role and Responsibilities 

Be part of the team to build up a new organization and environment. Develop skills in making business plans from a high perspective, through the high-level coordination with departments. Gain experience in a company that aiming to be the pioneer in the market to provide great services, which never had before during the era of Financial reformation

●Develop and operate the Backend Application system for companies product (PHP, Java, SpringBoot, Kotlin, MySQL/AuroraDB)

●Design large scale systems with high complexity to support our high throughput applications

●Understand how to leverage infrastructure for solving such large scale problems

●Develop tools and contribute to open source wherever possible

●Adopt problem solving as a way of life – always go to root cause

■ Experience and Qualifications

●3-5 experience in developing Backend Application for company products

●Experience in using Java/PHP under professional environment, or if you are non-Java user, excellent skills in generalized programming languages, such as Scala, Python and Go.

●Interest and ability to learn other coding languages as needed.

●Experience with NoSQL databases and distributed cache.

●Strong fundamentals in data structures, algorithms and object oriented programming

●In-depth understanding of concurrency and distributed computing

■ Additional Preferred Qualifications
●Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients

●Experience with AWS services

●Experience in system design, development of web system which handles massive amount of transactions or requires scalability

●Experience with Microservices

●Experience in working for system development in securities, finance, or similar industries

●Experience in developing inhouse Product/Service

■ Good Reasons to Join

● Remote work environment within Japan

● Work with International team members

● Business level in either English or Japanese (JLPT N1)

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.

Career Opportunity for a Robotics Software Engineer in Japan! 

■ Robotics Software Engineer

■ Company Overview

We combine AI and conversation design expertise, provides brands the ability to easily create and integrate automated chat experiences, transforming post, story, or ad into personalized interactive experiences.  

■ Your Role and Responsibilities 

●Design and build the on-robot runtime: ROS 2 nodes, task orchestration/state machines, safety guards, and recovery behaviors

●Serve learned policies on-robot and at the edge (policy servers, streaming inference, latency budgets on Jetson-class hardware)

●Integrate subsystems into one working robot: manipulation policies (Zen), navigation/SLAM, voice interaction, fleet telemetry

●Own deployment and operations tooling: containerized builds, system services, OTA updates, remote debugging of field robots

●Build the observability layer: structured logging, telemetry ingestion, incident triage for deployed robots

●Work with FDEs to turn field failures into runtime fixes and with the Data Platform team to capture every run as training data

■ Experience and Qualifications

●5+ years of software engineering, with 2+ years shipping software that ran on physical robots or embedded/edge systems in production

●Strong modern C++ and Python

●Production ROS / ROS 2 experience on Linux (real robots, not only simulation)

●Real-time thinking: latency budgets, lock-free queues where needed, graceful degradation, watchdogs

●Docker, Git, CI/CD as daily tools; comfort debugging a robot over SSH in the field

●Working English (team documentation is in English); Japanese is a plus for field work

■ Additional Preferred Qualifications
●On-device ML inference (TensorRT, ONNX Runtime, GPU serving) and Jetson/edge optimization

●Experience integrating learned policies (VLA/BC) into control stacks

●Fleet management, OTA update systems, or remote operations tooling

●Voice/multimodal interaction pipelines

●Safety frameworks for robots operating around people

Why This Role

●OS is where the whole company converges: your code decides whether hardware (D1) plus intelligence equals a robot a hospital can rely on.

●Field feedback in days: robots you deploy run real shifts at real customer sites in Japan.

■ Good Reasons to Join

● Japanese proficiency is required (JLPT N1 / Business level)

● Work with International team members

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.

Career Opportunity for a Senior Rust Backend Engineer in Japan! 

■ Senior Rust Backend Engineer 

■ Company Overview

A leading IT and digital transformation company that helps businesses improve efficiency through advanced AI and automation solutions.

■ Your Role and Responsibilities 

●We are seeking a Senior Rust Backend Engineer experienced in building high-performance, reliable trading APIs. 

●You will be responsible for designing, implementing, and optimizing the backend services that power our exchange interfaces - ensuring low latency, resilience, and correctness under load.

●The ideal candidate is both a strong Rust engineer and a system thinker, capable of reasoning about concurrency, data flow, and observability in production environments.

●Manage task lifecycles, cancellation, backpressure, and graceful degradation.

●Build real-time data pipelines for trades, orders, and market updates.

●Rebuild local state using snapshots and incremental updates.

●Develop WebSocket connections, message parsing, and real-time data delivery.

●Build observable systems with metrics, logging, and distributed tracing.

●Improve system performance, scalability, and fault tolerance with infrastructure teams.

●Develop unit, integration, and load tests for production reliability.

■ Experience and Qualifications

●Rust Expertise

●5+ years of professional backend engineering experience, with 3+ years of Rust in production.

●Strong experience with the Tokio async runtime and concurrent programming patterns.

●Deep understanding of structured concurrency and robust handling of spawned task cancellation.

●Hands-on experience with HTTP and WebSocket frameworks such as Hyper or similar.

●Prior hands-on trading or market data experience 

●Expertise in real-time data streaming and processing systems.

●Ability to design and instrument systems for metrics, logging, and tracing.

■ Additional Preferred Qualifications
●Deep understanding of lock-free or lock-avoidant data structures

●Experience designing cache-friendly data layouts and optimizing for memory locality in latency-sensitive systems.

●Proficiency in profiling CPU and memory performance and able to diagnose and optimize latencies in real-time event pipelines

●Familiarity with Docker-based environments and CI/CD pipelines.

■ Good Reasons to Join

● Work with International team members

● Hybrid / Remote working environment

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.

Career Opportunity for a Test Automation Engineer in Japan! 

■ Test Automation Engineer (Bilingual position)

■ Company Overview

An e-commerce, fintech, digital content and communications company with more than 30,000 employees, and operations in 30 countries and regions.

■ Your Role and Responsibilities 

●We provide diverse services across four key domains: DATA, Business Support/Accounting, CRM, and AI Agent, which builds the foundation for leveraging AI across the  entire organization.

●We are committed to pursuing business process optimization and  efficiency while delivering high value through our system offerings. 

●Work closely with test engineers and development teams to define and improve the test automation achitecture 

●Design and operate test automation architecture 

●Design and operate original test automation frameworks 

●Design and operate CI/CD environments 

●Assign and review tasks for team members, including outsourced members 

●Design automated test scripts for UI, API, and web applications 

●Implement automated test scripts 

●Operate test automation tools 

●Verify and analyze test results 

●Report test results

■ Experience and Qualifications

●Over 3 years of experience in test automation development or implementation 

●Experience using testing middleware or frameworks in any language is required (e.g., Playwright, JUnit, Test::Unit, unit test, Selenium, Cypress) 

●Backend knowledge and application testing experience 

●Experience in designing, developing, and implementing UI and API tests 

●Japanese - Business Level / JLPT N3 and can communicate in Japanese

■ Additional Preferred Qualifications
●Experience in test planning, test design, and test implementation 

●Knowledge of and experience in the internet service industry 

●Knowledge equivalent to ISTQB Foundation Level 

●E-commerce domain knowledge 

●Proactively involves others to solve problems or improve the situation 

●Has an inquiring mind for various issues and topics 

●Has a strong passion for continuous learning in a fast-moving environment 

●Communicates effectively with various stakeholders as well as other QA ●team members 

●Willing to take on new challenges and drive improvements instead of being satisfied with the status 

■ Good Reasons to Join

● Hybrid position in Japan

● Work with International team members

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.

Career Opportunity for an AI Engineer in Japan! 

■ AI Engineer 

■ Company Overview

A leading IT and digital transformation company within a major beverage manufacturing group, focused on improving business efficiency through advanced AI and automation solutions.

■ Your Role and Responsibilities 

The AI Engineer is a hands-on technical role within the Automation & AI Department, reporting to the AI  Manager. The role focuses on re-engineering and modernizing legacy enterprise applications into modular, scalable, and cloud-ready architectures using AI- assisted development, automation, and modern software engineering practices.

●Analyze legacy enterprise applications and identify modernization opportunities

●Design and implement modular architectures (microservices, APIs, event-driven patterns)

●Use AI and automation tools for code analysis, refactoring, test generation, and migration

●Develop and maintain modern applications using latest cloud and software technologies

●Create proofs-of-concept and support pilot implementations

●Collaborate with architects, platform teams, and business stakeholders

●Document designs, patterns, and implementation standards

■ Experience and Qualifications

●4–8 years of hands-on experience in software development or system engineering

●Experience with modern programming languages and frameworks

●Understanding of legacy system modernization concepts

●Exposure to cloud platforms, containers, and CI/CD pipelines

●Interest or experience in AI-assisted development or automation tools

■ Additional Preferred Qualifications
●Actively learns new technologies, tools, and architectural patterns.

●Problem Solving: Approaches complex legacy challenges analytically and pragmatically.

●Collaboration: Works effectively within cross-functional teams.

●Business Japanese proficiency is needed

■ Good Reasons to Join

● Work with International team members

● Hybrid working environment

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.

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