Top Software Engineer Jobs in Tokyo

Design, implement, and verify firmware and embedded software for humanoids, dual-arm robots, robotic hands, and teleoperation systems. Develop low-level control platforms, device drivers, communications (CAN/UART/SPI/I2C/Ethernet), logging/diagnostics, and interfaces to ROS/ROS2. Conduct real-robot testing, failure analysis, and system integration with mechanical, electrical, AI, and cloud teams to improve reliability and reproducibility for research data collection.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design and implement automated tests for R&D virtual orthodontic software. Create functional, regression, performance, and integration test automation; run and monitor test executions; analyze failures; collaborate with development, biomechanical engineers, and distributed automation teams within a Scrum environment.

Design and execute automated tests across APIs, web, and enterprise applications. Participate in release planning, write test plans and cases, diagnose bugs, collaborate with developers, and validate system quality before release. Maintain automated test suites and improve QA processes for data products and complex backend integrations.

Design, prototype, and implement scalable 3D CAD/CAM software and algorithms for medical device mass production. Collaborate across manufacturing, product, and QA teams to define requirements, draft architecture, optimize processes (including 3D printing and laser workflows), and mentor junior engineers throughout the full software lifecycle.

Design and build high-throughput reconciliation systems and data pipelines. Implement real-time (Flink) and batch (Hive) workflows, write complex SQL for validation and anomaly detection, collaborate with Finance/Risk/Product on reconciliation rules, optimize for low latency, and leverage AI/LLM tooling to automate triage and improve operations.

Senior backend-focused full-stack engineer for APAC markets contributing to a squad that designs, builds, runs, and scales services. Work across backend, frontend, data, and infra to deliver performant, maintainable systems, participate in architecture and system-design, mentor colleagues, and collaborate with international teams. Hybrid role based in Tokyo.

Lead AI-enabled C++ development for low-latency market data systems: design, implement, test, deploy, and support scalable multithreaded feed handlers and data pipelines. Build AI agents/workflows to accelerate SDLC, perform data analysis, and research low-latency technologies while providing Level 3 support and collaborating with application teams.

As a Software Development Engineer II on the POI Search & Relevance team, you will design and implement search algorithms, improve efficiency, and collaborate across teams to optimize the search engine's performance and relevance for users.

The Senior Software Engineer designs, develops, integrates, and debugs software for Biomek automated systems, gathers requirements, and manages projects.

Design, develop, and debug software for Biomek systems, collaborating with teams and customers, while managing projects and technical requirements.

The Senior Software Engineer designs, develops, integrates, and debugs software for Biomek automated systems, collaborating with customers and R&D teams while managing projects and requirements.

As a Senior Backend Engineer, you'll enhance Mapbox's EV data infrastructure, designing data pipelines and APIs while ensuring data quality and scaling services for global EV coverage.

Join a portfolio company as a Software Engineer to work on a performance-sensitive stack for crypto's dark pool, focusing on full onchain systems.

The Software Engineer will integrate customer software into the Vehicle OS, manage project timelines, and ensure high-quality software delivery for complex embedded systems.

Lead development of Windows desktop applications using Windows App SDK and WinUI. Define best practices, drive accessibility initiatives, collaborate with design teams, and manage features lifecycle from conception to maintenance.

The Senior Software Engineer will enhance Speechify's core services and SDKs, optimize performance, collaborate with product teams, and improve user experience through effective system design and APIs.

Lead design, implementation, deployment, and maintenance of production ML systems for document understanding. Build scalable model-serving infrastructure, develop and fine-tune ML models (CV/NLP/OCR), collaborate with product owners, and mentor junior engineers.

Design, develop, and maintain software for ICP-MS instruments, oversee full development lifecycle, solve technical challenges, and mentor junior engineers.

Design and operate high-performance data backend systems at scale, focusing on workflow optimization, reliability, and collaboration across teams.

As a Staff Software Engineer focusing on Data Backend, you will design APIs, manage data warehouses, develop data pipelines, and optimize operations using cloud technologies.

As a Senior Software Engineer, you will lead software development, mentor team members, contribute to system design, and oversee application development life cycles.

Integrate and deliver voice recognition software for automotive, collaborating with clients and internal teams, while setting up CI/CD environments and handling testing.

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

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.