Jobs in Japan
Explore hand-picked jobs in Japan for English speakers across tech, education, marketing, and more.
Vetted companies only. Apply from overseas.
Jobs in Japan
Explore hand-picked jobs in Japan for English speakers across tech, education, marketing, and more.
Vetted companies only. Apply from overseas.
666 jobs in Japan open to English speakers, updated 25 October 2026.
Explore hand-picked jobs in Japan for English speakers across tech, education, marketing, and more.
Vetted companies only. Apply from overseas.
62 open jobs
Our team is responsible for internal business support systems for our e-commerce platform, analytics systems for merchant sales, performance estimation systems for new strategies, and accounting management systems and billing data in both domestic and overseas markets. In the future, we will execute a project to migrate our current SAP ECC6.0 to SAP S/4HANA by the end of 2027. After the service goes live, we aim to achieve maintenance and operations through in-house resources. Therefore, we would like you to join from the development phase on the project to understand the specifications of the new system. We are seeking highly skilled Application Engineers with expertise in Java development and SAP Business Technology Platform (BTP) to build and integrate application platforms for internal business use. You will understand business requirements and translate them into new, effective, and operational IT plans. You will be responsible for developing, enhancing, and maintaining internal business applications, with a focus on leveraging cloud-native technologies and integration platforms. Responsibilities include developing and deploying applications on SAP Business Technology Platform (BTP), utilizing its various services and capabilities; collaborating with other developers, architects, and stakeholders to ensure the successful delivery of projects; participating in all phases of the software development lifecycle, including requirements gathering, design, development, testing, and deployment; implementing and maintaining CI/CD pipelines for automated build, test, and deployment processes; troubleshooting and resolving technical issues related to application performance, scalability, and security; staying up-to-date with the latest trends and technologies in Java development, cloud computing, and integration platforms; and contributing to the development of best practices and standards for application development and integration.
Rakuten is a leading Japanese e-commerce and internet services company that offers a wide range of products and services to customers worldwide. With a strong focus on innovation, Rakuten aims to empower individuals, businesses, and society as a whole through its unique ecosystem of e-commerce, fintech, digital content, and communications services. The Merchandising and Advertisement Department leverages AI-driven advertisement optimization, and pricing and inventory optimization systems based on demand forecasting. By closely integrating the information obtained from merchandising into our advertisement strategies, we maximize the synergy between both functions. This enables us to efficiently deliver optimal offers and information to our customers, thereby contributing to increased sales and enhanced customer satisfaction. The Advertisement Optimization Group is a team of specialists in ad optimization, with AI at its core. We are responsible for the development and operation of highly effective ad optimization logic and platforms. Our mission is to maximize publishers' ad revenue while maintaining and improving advertisers' ROAS (Return On Ad Spend). Specifically, we continuously improve ad delivery optimization, bidding/budget allocation, personalization, and performance measurement, contributing to the realization of a world that enhances both advertisers' ROI (Return On Investment) and user experience. We are looking for a Senior Software Engineer to lead the design, development, and optimization of complex data processing pipelines and high throughput APIs. You will guide technical decisions, mentor engineers, and ensure that our platforms remain robust, scalable, and aligned with long-term business goals. This role is ideal for individuals who thrive in highly technical environments and enjoy solving challenging problems with modern engineering practices. Responsibilities include leading the design and architecture of large-scale, distributed software systems; developing high-quality, maintainable code across the full SDLC; collaborating with product, design, and engineering stakeholders to define technical requirements and project scope; driving engineering best practices including code reviews, testing strategies, standards, and documentation; mentoring and supporting junior/mid-level engineers through guidance, pairing, and knowledge sharing; identifying and resolving complex issues related to performance, scalability, and system reliability; contributing to long-term technical strategy, platform modernization, and technology roadmap planning; evaluating and integrating new tools, frameworks, and technologies to improve development efficiency; and leading technical initiatives, migration projects, or cross-team engineering efforts.
Rakuten Group, Inc. is the largest e-Commerce company in Japan, and provides a variety of services in e-commerce, fintech, digital content and communications to many users all over the world. Search Department focuses on Search, Discovery, and Navigation experience for users of Rakuten. We design, develop, and deploy high performance, fault-tolerant distributed systems used by millions of Rakuten customers every day. We strive to deliver the most innovative solutions that are helpful to people and societies around the world. We are looking for a senior backend software engineer to work on core search system development. The role will build the state-of-the-art search systems, propelling the fast iteration of search development. Support fast iterations of Rakuten search business and further enable the product growth. Build a fast and robust Search product by keeping optimizing system performance and improving service stability. Construct a high freshness index and provide a reliable offline data support for Search Engine. Guarantee reasonable Search architecture governance to ensure that the overall system operates smoothly.
Design, implement, and optimize radar-based ARAS functions using modern C/C++. Develop scalable core platform software while adapting features to match the unique vehicle dynamics, chassis behavior, and styling constraints of global motorcycle OEMs. Perform functional evaluations, data collection and initial calibration on test motorcycles at our Nasushiobara Proving Ground (regular trips, ~3 hours from Yokohama office) and on public roads. Work closely with international feature development teams, system engineers, functional safety managers and application engineers throughout the V-model lifecycle. Develop Python-based test pipelines, simulation environments, and measurement scripts to process and analyze radar sensor recordings from bench and track tests. Contribute directly to life-saving motorcycle safety innovations experienced by riders around the world. Work with dedicated development motorcycles, closed proving grounds, and advanced rider dynamics training. Collaborate across borders with premium international motorcycle manufacturers from the worldwide headquarters of Bosch 2WP in Japan. Receive continuous professional training and work in cutting-edge development environments with competitive compensation and flexible hybrid working arrangements.
BytePlus is the enterprise technology arm of ByteDance, providing Generative AI, multimodal models, AI agent solutions, and cloud infrastructure capabilities to businesses worldwide. In Japan, we work with leading enterprises across multiple industries to drive AI adoption from proof-of-concept (PoC) to scalable commercial deployment. Our goal is not only to demonstrate cutting-edge technology, but to help organizations create sustainable and measurable business value. Partner closely with the Japan regional Sales team to identify customer business challenges and technical requirements. Break down complex business problems into practical and scalable AI solutions. Lead technical demos, architecture discussions, RFI/RFP responses, and PoC design and delivery. Drive PoC-to-production conversion and ensure measurable business impact. Build technical credibility within customer organizations, from engineering teams to C-level executives. Participate in or lead the design and implementation of Generative AI applications, including LLMs, RAG systems, agent architectures, and multimodal solutions. Design and implement end-to-end system architectures, including model orchestration, knowledge base construction, vector database integration, API connectivity, and overall system integration. Evaluate system performance in real production environments (accuracy, latency, cost, scalability). Optimize prompt structures, inference workflows, and caching strategies to improve system stability and efficiency. Continuously refine solutions based on customer business KPIs. Act as the technical lead in customer engagements, supporting commercial discussions and technical negotiations. Collaborate with the Sales team to drive deal closure and contract execution. Support account expansion initiatives (upsell / cross-sell). Take ownership of both technical quality and commercial success of assigned projects. Build and maintain long-term trusted relationships with enterprise clients. Provide structured frontline feedback to Product and Engineering teams. Drive localization and optimization of products for the Japan market. Identify repeatable, industry-level AI solution patterns and support scalable adoption. Contribute to the development of industry solution frameworks and methodologies for Japan.
As a Cortex Transformation Engineer, you are a critical part of the Global Transformation Practice, ensuring our enterprise customers undergo a flawless migration and security operations transformation to modern platforms. Operating within a synchronized global model, you will own the end-to-end customer transition lifecycle, compressed into a high-velocity sprint. You will combine deep technical engineering acumen with exceptional customer-facing delivery to execute data cutovers, lead immersive operational workshops, and demonstrate quantifiable business value to customer security leadership. Your impact includes executing technical migrations of customer environments from legacy to modern platforms; owning policy mappings, data retention configurations, API setups, and log ingestion validations against Palo Alto Networks "Golden Standard" design templates. You will bridge implementation and platform adoption by running practitioner-focused "Day in the Life" workshops, educating customer teams on native platform workflows, alert triage, incident response, Agentic-AI, and automated playbooks through 1-on-1 and cohort-based delivery. You will also lead structured Value Realization sessions with customer technical stakeholders, using native platform dashboards to demonstrate ROI, security efficacy, and operational efficiency and secure formal project sign-off and customer delight.
In this role, you will own the end-to-end test lifecycle for key cellular features across LTE, 5G NR, and future standards, while driving root-cause analysis on complex baseband software and firmware issues. You will also analyze incoming carrier specifications, map them into structured test plans, evaluate environment applicability, and execute verification on advanced lab equipment. Additionally, you will author test cases for internal testing and expand test automation frameworks—leveraging AI/ML where applicable—to maximize coverage and surface defects early in the development cycle, ensuring we deliver the best possible wireless experience to Apple customers worldwide. Test Design & System Verification: Define, develop, and execute system-level test plans evaluating 4G/5G and emerging standards across protocol control and user planes as well as physical-layer performance. Carrier Acceptance & Specification Engineering: Translate complex operator specifications—with emphasis on Japanese carriers—into actionable test plans aligned with Apple’s product roadmap, executing verification across network simulators, call boxes, and lab testbeds. Protocol Log Analysis & Root-Cause Triage: Analyze protocol traces, RF captures, and diagnostic logs to isolate baseband firmware and software defects, performance bottlenecks. Cross-Functional Driving & Issue Resolution: Partner closely with Baseband Software, Firmware, Systems Engineering, RF, Carrier Engineering, and Regulatory teams to reproduce issues, verify fixes, and drive 3GPP and carrier conformance. Test Automation, Tooling & AI/ML: Leverage AI/ML to develop custom tooling/dashboards/automation frameworks.
At ispace, we believe in empowering the next generation of innovators. Our internship program offers a unique opportunity to work alongside world-class engineers on real projects that contribute to our mission of expanding humanity’s presence in space. ispace interns work across teams in R&D/Engineering, Business, IT, Legal and Finance to tackle challenges, collaborate on solutions, and drive impactful change for our clients and users. Along the way, you’ll gain valuable skills and lay the foundation for your career. Our program is highly specialized—we do not offer “general internships.” Interns become an integral part of the team, working on actual projects and learning directly from experienced professionals. To succeed, candidates must possess the technical skills required for the role they apply for. Engineering roles include Design, Mission Operations, and Production/AIT. Various corporate roles are also available. Internships can start at any time and the length of the internship also varies. Part time internships are available, but our preference is for longer term (6 months or more) and full time. The position is based at the Tokyo office; remote internships are not available. English or Japanese language ability is mandatory.
The Synthetic Product Group (SPG) business offers institutional clients and hedge funds products which are optimal with respect to tax, balance sheet and funding. Business revenues come from commissions, financing, and dividends through the trading of CFD and Equity Swap OTC instruments alongside futures, ETFs, and structured products. It is part of a front to back alignment where engineers are embedded with the revenue generating part of the business. This provides opportunities to partner closely across the SPG organization to deliver the firm even more effectively and efficiently to our clients. SPG engineering team is a dynamic and innovative front office team that partners directly with trading, sales, quants, operations, prime services, and other engineering teams across the globe. We focus on building and enhancing the applications and workflows that support the SPG business and our clients. As a key full-stack developer of the team, you will be at the forefront of various revenue-driven technology builds and working in a fast-paced changing environment. You may be working on a new business initiative to design the trade flow for the firm's synthetic product offerings. You may be building a cutting-edge technology stack that parallelizes the processing of contract lifecycle events with utilities to capture and visualize system performance. If you are interested in learning how the SPG business model works and how to apply your expertise to build the leading industry product to make great impact to the business, this position will be a great fit. With this role, you will be getting lots of exposure on understanding the business model/principles, as well as how to serve clients and the firm by using your business and technical expertise. You will have the opportunity to liaise with experts in business, engineering, and operations across the globe in an environment that encourages open discussion and is focused on the delivery of robust, reliable software. You will be participating in the full product lifecycle from requirements gathering, design, implementation, testing, support, and monitoring system performance. You’ll have access to the latest AI models and backing from the firm to leverage your AI expertise to drive efficiency and innovation. You will learn what the One Goldman Sachs concept is and how we work as a team. If you are looking for new challenges and opportunities, this is the role that you should apply and consider. Responsibilities include designing, building and maintaining high-performance, high-availability, high-capacity, yet nimble and adaptive platforms for risk hedging, trade execution, trade booking and workflow management as well as post-trade processing; designing and building solutions to enhance and scale up the infrastructure to support business growth and new products, in a holistic front-to-back approach; finding opportunities to apply AI as a force multiplier to both technical and business deliverables, contributing to the SPG AI toolkit and evangelizing AI within the organization; collecting data and metrics from existing systems to guide decision making and business intelligence, developing or enhancing tools as necessary to collect them; and communicating with traders, sales, strategists, operations, and compliance officers to gather new requirements, design workflow, deliver features and provide user support.
As a Sr. or Staff Design Engineer in the NVE Design Engineering Analog group at Micron Technology, Inc., you will contribute to the development of memory products that are best-in-class, using your specialized knowledge and Micron proprietary methods of designing and analyzing analog and mixed circuits used in the development of memory products. Responsibilities include designing, simulating, optimizing, and floor planning NAND circuits; evaluating design feasibility and analyzing circuit functionalities; implementing analog and mixed signal circuit design to meet specifications; validating design performance and functionalities by running block and chip level simulations using standard industry simulators; working closely with other functional teams to evaluate, analyze, and improve NAND power consumptions; collaborating productively with other team members; reviewing existing and generating new technical documentation; building and maintaining Python-based AI utilities that interface with EDA environments to accelerate design tasks such as environment setup, corner execution, regression runs, automated documentation, and intelligent/predictive design/layout techniques; and supporting groups such as Product Engineering, Test, Probe, Process Integration, Assembly, and Marketing to proactively design products to optimize manufacturing functions and assure the best cost, quality, reliability, time-to-market, and customer satisfaction.