Jobs in Tokyo

Credit Control Specialist

Mercari

This job requires Japanese language proficiency. The job description is available only in Japanese. Merpay has been certified by the Minister of Economy, Trade and Industry as the first 'Certified Comprehensive Credit Purchase Intermediary' utilizing AI credit assessment. You can challenge yourself through new business initiatives to realize our mission of 'creating credit and building a smooth society.' As a pioneer in AI credit assessment, there is an interesting aspect of pursuing credit based on data without being constrained by traditional regulations, while continuously providing transparent credit that matches the repayment ability of our customers is a high-difficulty and very challenging environment.

Commis-Kappo Restaurant (SAKI) - JW Marriott Hotel Tokyo

Marriott International

POSITION SUMMARY Applicants should have a valid work visa for Japan or be eligible to work in Japan. Candidates must have professional experience in Japanese cuisine and possess a solid understanding of traditional Japanese culinary techniques and standards. Prepare ingredients for cooking, including portioning, chopping, and storing food. Wash and peel fresh fruits and vegetables. Weigh, measure, and mix ingredients. Prepare and cook food according to recipes, quality standards, presentation standards, and food preparation checklist. Prepare cold foods. Operate ovens, stoves, grills, microwaves, and fryers. Test foods to determine if they have been cooked sufficiently. Monitor food quality while preparing food. Set-up and break down work station. Serve food in proper portions onto proper receptacles. Wash and disinfect kitchen area, tables, tools, knives, and equipment. Check and ensure the correctness of the temperature of appliances and food. Follow all company and safety and security policies and procedures; report maintenance needs, accidents, injuries, and unsafe work conditions to manager; complete safety training and certifications. Ensure uniform and personal appearance are clean and professional; maintain confidentiality of proprietary information; protect company assets. Speak with others using clear and professional language. Develop and maintain positive working relationships with others; support team to reach common goals; listen and respond appropriately to the concerns of other employees. Ensure adherence to quality expectations and standards. Stand, sit, or walk for an extended period of time or for an entire work shift. Reach overhead and below the knees, including bending, twisting, pulling, and stooping. Move, lift, carry, push, pull, and place objects weighing less than or equal to 25 pounds without assistance. Perform other reasonable job duties as requested by Supervisors.

[MedTech] Medical Device Safety/ Pharmacovigilance Specialist, Safety Management Department (Surgery Commercial Quality)

Johnson & Johnson

We are seeking staff for the Surgery group in the Vigilance Safety department of Johnson and Johnson MedTech, Commercial Quality. The primary responsibility will be to handle tasks related to post-marketing safety management based on established procedures, including implementation and accountability. You will collect, evaluate, and implement safety management information, including customer complaints, adverse events, and side effects related to the assigned products (medical devices, pharmaceuticals, or both), in accordance with relevant laws, global and internal regulations, to comply with domestic and international regulations and corporate compliance. Additionally, you will contribute to identifying potential safety issues, implementing safety measures, and responding to appropriate use initiatives.

Commercial & Mid-Market Sales Engineer

Datadog

Datadog Sales Engineers help qualify and close opportunities with customers and partners. You will provide technical expertise through sales presentations, product demonstrations, and supporting technical evaluations (POCs). Sales Engineers have a voice with the product team to help prioritize features based on input from customers, competitors, and partners. Additionally, you will work with various teams to resolve customer concerns, escalate bug issues, and serve as an ambassador for our brand. If you want to join a friendly, passionate team with limitless potential, we’d love to meet you! At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them.

Principal Technical Support Engineer

Salesforce

The Signature Success Plan is a critical enterprise system designed for customers and partners using Salesforce products and services. It consists of support services, proactive services, and customer success managers. The Signature support services team provides advanced technical support and proactive services. They investigate system failures, confirm technical details regarding usage, provide technical assistance for performance issues, and investigate the causes of alerts detected by proactive services based on inquiries received from customers via phone or the internet. In the case of significant failures, they collaborate with customer success managers to assist customers in resolving issues. Additionally, if detailed investigation is required, they escalate to the development department and work with them to resolve the issues. Signature support engineers are required to have expertise in one of the technical areas ranging from web technologies (HTML, CSS, JavaScript, API, etc.) to server-side technologies (SQL, object-oriented languages like Java, application servers, databases, etc.) to support the rapid resolution of issues and failures that occur in the daily use of Salesforce services by customers who have contracted the highest level of the Signature Success Plan. This position requires individuals who can demonstrate leadership as a technical lead in a team that continuously learns and shares knowledge about the ever-evolving Salesforce products and surrounding technologies, enhancing each other's skills and acting as central engineers.

Lead FM @Hachioji, Life Science

JLL

This position is responsible for providing comprehensive facility and workplace services focused on customer centricity, continuous improvement, operational excellence, safety, and compliance. As the Lead FM, you will manage the tactical delivery of assigned properties/facilities and serve as the primary contact for clients and stakeholders. There are seven sites in Japan, with the JLL team assigned to three sites, while four sites are managed remotely. Therefore, the team handles not only on-site tasks but also remote tasks, which the Lead FM oversees. The client office location is the headquarters in Hachioji. Service hours are from 9:00 AM to 5:10 PM.

Senior UX Researcher- Mercari Marketplace (Commerce New Service)

Mercari

本ポジションは日本語JDの用意がありません。Employment Status:　Full-time Work Hours: Full Flextime (no core time) Office: Roppongi For more details, see the Overview of Our Positions section on our Careers site. The New Business Design Team leads end-to-end user experience design for emerging product initiatives at Mercari, shaping intuitive, trustworthy, and high-quality experiences for domestic and international users. We partner closely with Product, Engineering, Research, and Business Development to explore new problem spaces and raise the bar for craft, consistency, and innovation. We are seeking a User Researcher to join the New-Business research team. The New Business organization at Mercari is focused on identifying and scaling transformative opportunities that expand Mercari's market reach and unlock new revenue streams. We pursue zero-to-one initiatives and strategic bets across emerging commerce models, user segments, and geographic markets—from expansion into new verticals to testing innovative transaction types. Our team operates at the intersection of exploration and execution, moving quickly to validate concepts while maintaining rigor in decision-making. We are seeking an experienced User Researcher to join the New Business UX research function at Mercari. This role requires full-stack research capability—the ability to move fluidly between lightweight tactical research (rapid testing, feedback collection, quick iterations) and deeper strategic research (market exploration, business model validation, strategic recommendations), while also leading research initiatives independently and partnering cross-functionally with product, design, and business teams. You will own research strategy for assigned new business initiatives, ranging from early-stage market exploration to validation of emerging concepts. You'll design and execute a mix of qualitative and quantitative research methods—from quick concept tests and user feedback loops to in-depth ethnographic fieldwork and large-scale validation studies—and synthesize findings into clear, actionable recommendations that directly influence business direction and product decisions. You're equally comfortable running a one-week validation sprint as you are designing and leading a multi-month strategic research initiative. As the research voice in an exploratory, fast-moving environment, you'll need to balance rigor with speed: designing research that generates confidence in decision-making while moving quickly enough to support iterative business hypothesis testing. You'll also play a key role in building research operations and practices for the new business org, helping establish scalable processes, repositories, and frameworks that mature as we grow and that can be shared across Mercari. This role is ideal for a researcher who thrives working with ambiguity, who has demonstrated success leading research independently (not just executing), who brings international and cross-cultural perspective, and who is excited by the challenge of validating entirely new business models and market opportunities. Lead end-to-end research initiatives for new business concepts, including framing research questions, designing methodology, managing timelines, and communicating findings to senior leadership and stakeholders. Conduct international and cross-cultural user research, including planning and executing fieldwork in key markets (e.g., US, Asia-Pacific regions) to understand local user behaviors, market dynamics, and competitive landscapes. Partner with product, business development, and design leads to translate business hypotheses into rigorous research frameworks that test viability and reduce risk. Make methodological choices that balance research rigor with business velocity—knowing when to run quick validation tests vs. deeper exploratory studies. Synthesize research findings into strategic recommendations and business insights that inform go/no-go decisions, product strategy, and market entry decisions. Establish and evolve research ops best practices for the new business organization, including participant recruitment strategies, repository management, and insight communication frameworks. Build and maintain research repositories, market databases, and competitive intelligence systems that enable ongoing learning across new business initiatives. Support research at scale by leveraging AI tools thoughtfully across the research workflow—from study planning and participant recruitment to analysis, synthesis, insight visualization, and reporting. Help establish shared research artifacts (playbooks, templates, frameworks) that enable rapid research execution and knowledge sharing across the new business team. Partner with PMs, designers, marketing and business development stakeholders to identify research needs early and embed research into decision-making cycles. Communicate research findings effectively to diverse audiences—executives, product teams, and design partners—adapting communication style and rigor to stakeholder needs. Build trust and credibility with stakeholders through transparent research practices, clear methodology communication, and a track record of actionable insights. Mentor and support junior researchers or contractors as the team grows. Stay current with research trends, methodologies, and tools—particularly in international research, business model validation, and emerging commerce spaces. Explore and advocate for thoughtful applications of AI in the research function, helping Mercari develop a more efficient, innovative research practice. Contribute to the broader UX research community at Mercari, sharing frameworks and learnings across teams. Full-stack and versatile: Comfortable moving between modes—able to run quick, lightweight validation tests one week and design a rigorous multi-month strategic research initiative the next. You don't mind getting hands-on with execution, but you're also capable of stepping back to think strategically about research direction. Strategically minded: Able to frame research questions that directly address business risk and opportunity. You understand how research fits into augments business decision-making, not just design iteration. Intellectually rigorous: Comfortable defending methodology choices, challenging assumptions (yours and others'), and insisting on evidence-based thinking—even under time pressure. Operationally savvy: Excited to build research infrastructure and processes—not just execute individual studies, but help create scalability and organizational capability as the team grows. Internationally experienced: Genuinely curious about cultural differences, local markets, and cross-cultural user research. Ideally with hands-on experience conducting international field research, ethnographic studies, or in-person research across multiple countries. Adaptable and entrepreneurial: Thrives in ambiguous, fast-paced environments. Comfortable with incomplete information, shifting priorities, and the inherent uncertainty of new business exploration. You move fast without sacrificing rigor. Communicative and collaborative: Strong storyteller who can make research findings memorable, accessible, and actionable. Enjoys building relationships across functions and translating research into business language. Comfortable with AI tools: Proactive about exploring and applying AI to improve research speed, quality, and scale—while maintaining research rigor and ethical practices. Learning-oriented: Brings curiosity about the ecommerce space, new business models, and what drives user adoption in emerging categories.

Manager, Supply Chain, SDG Japan

Thermo Fisher Scientific

Logistics Analyst/ロジスティクスアナリスト（ジュニアレベル、第二新卒程度から）

Thermo Fisher Scientific

Master Data Management Specialist

Thermo Fisher Scientific

Affiliated Company: Thermo Fisher Scientific Inc. Business Division/Organization Name: Supply Chain Headquarters Job Band: 4 The Senior Master Data Coordinator is a key position that supports the business foundation of Thermo Fisher Japan. Accurate and reliable master data impacts customer experience, sales, and operational efficiency, making this position a vital contributor to "supporting the quality of the business." Additionally, it offers an environment where you can closely collaborate with global teams to challenge process improvements and optimize system operations tailored to the Japanese market. This position is ideal for those who want to deepen their expertise in data management while expanding their career.