Top Software Engineer Jobs in Japan

Lead the design and development of Windows desktop applications, ensuring accessibility, performance, and maintainability while collaborating with cross-functional teams.

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.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

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 end-to-end software features across frontend, backend, and AI components. Responsibilities include developing interfaces, APIs, backend services, data pipelines, automation workflows, and LLM-powered applications such as RAG systems and AI agents. The role involves testing, documentation, debugging, cross-functional collaboration, product iteration, and using AI coding tools to improve development speed and quality.

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.

Develop and maintain embedded software for router and LAN switch products. Design, code, test, and debug modules; collaborate cross-functionally with hardware, QA, and other software teams; research new technologies and contribute to architecture and feature design.

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 core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

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.

Design, develop, maintain, and optimize backend and big-data systems for Binance's Web3 security domain. Build scalable, high-concurrency services, improve security tooling and threat detection, work with data teams on collection and processing, and collaborate with cross-functional and global stakeholders to deliver security-focused technical solutions.

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.

Lead design, development, and delivery of cloud-native, microservice-based software products. Drive DevSecOps/CI-CD practices, API/system integration, quality assurance, customer-facing solution design, project leadership, and adoption of AI/IoT/digital-twin technologies.

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.