Top Software Engineer Jobs in Tokyo

Join the Core Experiences Team to build and maintain foundational services, optimize functionality, and deliver solutions with a focus on simplicity and reliability.

Lead the design and development of Windows desktop applications, enforce best practices, drive accessibility efforts, collaborate on UI/UX, and manage full feature lifecycle.

Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.

Design, develop, test, deploy, and operate mission-critical, high-availability, high-security systems supporting PlayStation manufacturing. Collaborate with global stakeholders and external partners, drive performance and quality improvements, model complex business domains, ensure data integrity and transactional correctness, and lead technical reviews and operations in on-premises and container-based environments.

The Quantum Software Engineer will design, optimize, and troubleshoot quantum control workflows, working directly with customers and collaborating cross-functionally to develop scalable software solutions in Python.

Develop Flight Software for lunar lander Guidance, Navigation, and Control. Collaborate on GNC algorithms, perform design analysis, and support integration.

The Principal Software Engineer will lead SW development for automotive embedded systems, interact with global customers, and handle complex technical issues while ensuring quality audio system solutions.

As a Staff/Senior Machine Learning Platform Engineer, you will architect and scale ML infrastructure, manage data pipelines, and mentor junior engineers.

Design and develop scalable backend services using ASP.NET Core. Optimize performance, manage databases, and work with cross-functional teams while ensuring code quality.

Design and maintain RESTful APIs, build data warehouses, develop data pipelines, and optimize data operations using cloud platforms.

Senior Software Engineer focused on backend service operations, responsible for system deployment, monitoring, troubleshooting, and improving operational workflows.

Lead the design and implementation of scalable gameplay systems for mobile games. Ensure high performance and reliability while mentoring other engineers. Collaborate with cross-functional teams to enhance user experiences.

Lead design, implementation, integration, V&V and operations of embedded flight software for lunar landers. Define product baselines, requirements, ICDs, safety and reliability analyses (FTA, FMEA/FMECA), system trade-offs, test plans, and support AIT/flight test operations and MBSE tool maintenance.

Design, build, and deliver cloud-based solutions with customers; write, refactor, and debug code; produce design documents; act as DRI/on-call; improve reliability, observability, and performance; collaborate with product teams, partners, and open-source communities.

Build and own end-to-end customer-facing features for web and mobile. Develop backend services and RESTful APIs in Node.js/TypeScript, responsive frontends in React/Next.js, integrate AI/LLM features, work with AWS infrastructure, ensure observability and security, contribute to CI/CD and testing, and mentor junior engineers in an Agile team.

Join Canonical as a Go Software Engineer to enhance developer workflows and build tools integrated with Ubuntu and modern SDKs, focusing on performance and user experience.

You will build and maintain container images, automate CI/CD processes, engage with the community, and mentor junior team members in a collaborative environment.

Design and ship deterministic, safety-critical motion planning systems for autonomous vehicles. Build reliable fallback planners for degraded perception and system faults, evaluate behavior at scale using simulation and logs, develop metrics and tools, and collaborate with perception, prediction, controls, safety, and remote assistance teams.

Develop and validate real-time driving planning and velocity-control algorithms for ADAS/autonomous vehicles. Implement embedded, safety-conscious software in C/C++/MATLAB/Simulink, evaluate performance with test vehicles and simulators, and collaborate cross-functionally to align software with vehicle controls and customer requirements.

Design, build, and maintain cross-platform mobile SDKs (iOS/Android/React Native/Flutter/Web). Deliver privacy-first, high-performance features, manage CI/CD and automated tests, ensure backward compatibility and SLOs, lead incident investigations, and mentor engineers while leveraging AI coding agents.

Build and scale Base360.ai: design APIs, services, and cloud-native infrastructure; implement event-driven automations, AI-powered workflows, and integrations (Airbnb, Stripe, Twilio, OpenAI). Own projects end-to-end to automate operations, improve pricing and guest experiences, and enable global scaling.

The role involves designing and implementing features, debugging, maintaining documentation, and collaborating with the community in the Mir graphics stack.

As a Software Integration Engineer, you'll integrate our Warehouse Execution System into customer environments, translating operational needs and ensuring seamless deployment. Responsibilities include designing scalable solutions, conducting various testing phases, and collaborating with international teams.

Develop and integrate embedded vehicle software into the Vehicle OS using C/C++ and Simulink. Work directly with customers to port and integrate features, manage vehicle integration timelines, set up SIL/HIL testing across timezones, influence technical strategy, and ensure high-quality production software.

Develop, optimize, test, and document Soroban smart contracts on the Stellar network for cross-border payment solutions. Integrate anchor services, collaborate with cross-functional teams, debug and support deployments, and stay current with blockchain and payments developments.