PayPay corporation is a fintech company providing a service enjoyed by over 63 million users (as of April, 2024) merely 5 years since its launch in 2018 in Japan. The company is now home to a very diverse team of members from more than 50 countries. We grew to a team of several thousand employees in Japan but are far from over. We are still in the Day 1. PayPay India  has been established in Gurugram, India in October 2022 as a first development center of PayPay outside of Japan.

Pay2

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Senior Backend Engineer

PayPay is seeking an experienced Machine Learning Engineer with a strong background in Natural Language Processing (NLP) and building end-to-end ML systems. The role involves leading production-grade RAG (Retrieval-Augmented Generation) services for customer support, focusing on accuracy, latency, and coverage. This will expand to core AI initiatives for Financial Solutions, building ML/LLM Systems aligned with the future roadmap. The ideal candidate will have 6+ years of experience in deploying and optimizing AI/NLP systems in production, with a strong emphasis on AI-augmented engineering practices.

<h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">About PayPay and Pay 2 Development Center</h2>PayPay, a fintech company providing a service enjoyed by over 60 million users merely 5 years since its launch in 2018 in Japan. The company is now home to a very diverse team of members from more than 50 countries. We grew to a team of several thousand employees in Japan but are far from over. We are still in the Day 1. Every day, new members join us from all over the world to create new value and deliver it to society.<h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Why India ?</h2>To build our Payment services, we got technical cooperation from Paytm (A large payment service company in India). And based on their customer-first technologies , we created and expanded the smartphone payment service in Japan. Therefore, we have decided to establish a development base in India, because it is a major IT country with many talented engineers, as evidenced by the fact that cutting-edge mobile payments can continue to be generated.<h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">OUR VISION IS UNLIMITED</h2>We dare to believe that we do not need a clear vision to create a future beyond our imagination. PayPay will always stay true to our roots and realise a vision (future) that no one else can imagine by constantly taking risks and challenging ourselves. With this mindset, you will be presented with new and exciting opportunities on a daily basis and have the opportunity to grow and reach new dimensions that you could never have imagined.<h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">AI-First Culture at PayPay</h2>At PayPay, we believe the future of software development is AI-augmented engineering. Every engineer is expected to actively leverage AI tools for code reviews, testing, documentation, debugging, and productivity improvements. AI is not optional — it is a mandatory part of our daily engineering workflow. Candidates must demonstrate both hands-on experience and the right mindset to integrate AI effectively into their workflow, while maintaining the engineering rigor, ownership, and problem-solving skills that only humans can provide.<h2 class="text-2xl md:text-3xl font-bold mt-10 mb-4 border-b pb-2 text-gray-800">Job Description</h2>We are seeking an experienced Machine Learning Engineer with a strong background in Natural Language Processing (NLP) and building end-to-end ML systems. You should have deep expertise in information retrieval/search, vector databases and LLMOps.In the near term, you will lead production-grade RAG (Retrieval-Augmented Generation) services that power customer support at scale - driving accuracy, latency, and coverage across the entire pipeline, from ingestion and indexing through retrieval, reranking, and LLM orchestration.This role will expand to core AI initiatives for Financial Solutions to build ML/LLM Systems in alignment with our future roadmap.<h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Responsibilities</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Own the RAG pipeline end to end for our customer support initiatives.</li><li class="leading-relaxed">Systematically improve retrieval accuracy by productionizing techniques like:</li><li class="leading-relaxed">Advanced chunking strategies for support documents and knowledge bases.</li><li class="leading-relaxed">Embedding model fine-tuning on our domain-specific data.</li><li class="leading-relaxed">Hybrid search (semantic + keyword) and implementing reranker models.</li><li class="leading-relaxed">Build and maintain robust evaluation frameworks to measure system performance and guide improvements.</li><li class="leading-relaxed">Build guardrails with SLMs to control faithfulness, answerability and reduce hallucination rate.</li><li class="leading-relaxed">Ensure Safety and Governance for LLMs used through PII redaction, policy/guardrails integration, grounded citations and incident playbooks.</li><li class="leading-relaxed">Collaborate with backend and data engineers to integrate ML models and search systems into our production environment.</li><li class="leading-relaxed">In the future, design and implement other ML models for financial solutions, collaborating with data scientists working on different products.</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Qualifications</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">6+ years of professional experience in machine learning engineering with a proven track record of building, deploying, and optimizing end-to-end AI/NLP systems in production</li><li class="leading-relaxed">Educational background in Computer Science, Engineering, Mathematics, or a related field.</li><li class="leading-relaxed">Familiar with LLM orchestration (LangChain/LlamaIndex or in-house), prompt/version management, tool use, and response streaming.</li><li class="leading-relaxed">Core NLP/RAG Skills:</li><li class="leading-relaxed">Deep understanding of Natural Language Processing (NLP), including Transformer architectures (e.g., BERT, Sentence-Transformers) and embedding techniques.</li><li class="leading-relaxed">Hands-on experience with Vector Databases and/or semantic search technologies.</li><li class="leading-relaxed">Expertise in ML frameworks like Hugging Face Transformers, PyTorch, or TensorFlow.</li><li class="leading-relaxed">Experience with RAG frameworks like LangChain or LlamaIndex is strongly preferred.</li><li class="leading-relaxed">Practical experience with evaluation - Golden Sets, A/B testing and RAG specific metrics</li><li class="leading-relaxed">General & Financial ML Skills:</li><li class="leading-relaxed">Good understanding of supervised and unsupervised learning and ensemble methods.</li><li class="leading-relaxed">Proficiency with libraries like scikit-learn and XGBoost.</li><li class="leading-relaxed">Experience in the FinTech industry or with financial/credit data is a significant plus.</li><li class="leading-relaxed">Core Tech Stack:</li><li class="leading-relaxed">Proficiency in Python. (Java/Scala is a plus).</li><li class="leading-relaxed">Strong knowledge of database management systems (e.g., MySQL, PostgreSQL), ETL processes, and SQL.</li><li class="leading-relaxed">Experience with MLOps practices and tools like Docker, Kubernetes, and cloud platforms (AWS preferred).</li><li class="leading-relaxed">Familiarity with tools like Apache Spark.</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Nice to Have</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Multilingual Information Retrieval (especially JP/EN), domain ontology/KB design, schema/metadata strategies.</li><li class="leading-relaxed">Safety/guardrails experience, privacy-by-design practices.</li><li class="leading-relaxed">Experience with tooling like FastAPI/gRPC, TorchServe and monitoring with OpenTelemetry/Victoria Metrics.</li><li class="leading-relaxed">Experience with Eval frameworks like Ragas, TruLens, DeepEval, LangSmith.</li></ul><h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Expected Personality</h3><ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Strong problem-solving and analytical skills.</li><li class="leading-relaxed">Excellent communication and collaboration abilities.</li><li class="leading-relaxed">Adaptability and a willingness to learn new technologies and techniques.</li><li class="leading-relaxed">Proactive mindset with the ability to think strategically about system improvements.</li><li class="leading-relaxed">Ability to make suggestions and improvements independently.</li><li class="leading-relaxed">Logical communicator with the ability to coordinate smoothly with stakeholders.</li></ul>Please refer <a href="https://speakerdeck.com/paypaycorporation/e1f1b5f41d8b3b6f7982ed4ca7619d58" target="_blank" rel="noopener noreferrer" class="text-blue-600 hover:text-blue-800 hover:underline transition-colors duration-200">PayPay 5 senses</a> to learn what we value at work.

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As an Account Manager on the Law team at iManage, you will build and strengthen long-term partnerships with leading law firms. You will serve as a trusted advisor and strategic consultant, helping firms evolve their technology strategies and realize measurable value from their investment in iManage. This role involves understanding firm priorities, culture, and client-service goals, aligning solutions with their evolving business and IT needs, and collaborating cross-functionally to deliver a world-class customer experience while identifying opportunities for growth.

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<h3 class="text-xl md:text-2xl font-bold mt-8 mb-3 text-gray-800">Sales - Remote - Full Time</h3>This is a remote role within a global team that utilizes cutting-edge technology to stay connected with colleagues worldwide. Occasional travel to a local office may be required for in-person collaboration with your team, as well as for company events, team building activities, or strategic meetings.Being a Account Manager, Law at iManage Means…As an Account Manager on our Law team, you’ll build and strengthen long-term partnerships with leading law firms who rely on our platform to manage, protect, and unlock their knowledge every day. You’ll be both a trusted advisor and strategic consultant, helping firms evolve their technology strategies while ensuring they continue to realize measurable value from their investment in iManage.This role is rooted in relationships. You’ll develop a deep understanding of each firm’s priorities, culture, and client-service goals, ensuring that our solutions are aligned with their evolving business and IT needs. Working cross-functionally with teams across Customer Success, Product, and Marketing, you’ll deliver a world-class customer experience while identifying opportunities for growth, expansion, and innovation.iM Responsible For…<ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Managing and growing a portfolio of law firm accounts, building trusted partnerships with firm leaders, IT decision-makers, and knowledge management professionals.</li><li class="leading-relaxed">Developing and executing tailored account strategies that drive renewals, expansion, and long-term client success.</li><li class="leading-relaxed">Leading renewal and commercial discussions that balance client value and organizational growth objectives.</li><li class="leading-relaxed">Partnering with Customer Success Managers and Professional Services to ensure seamless adoption, retention, and continuous client engagement.</li><li class="leading-relaxed">Acting as a strategic advisor, understanding the unique operational and cultural dynamics of law firms to provide thoughtful recommendations and measurable outcomes.</li><li class="leading-relaxed">Serving as the client advocate within iManage, influencing product enhancements and innovation based on real-world feedback.</li><li class="leading-relaxed">Collaborating with Marketing to share client success stories, thought leadership opportunities, and firm use cases that highlight industry impact.</li><li class="leading-relaxed">Maintaining accurate account plans, forecasts, and pipelines within CRM tools to ensure visibility and alignment across teams.</li><li class="leading-relaxed">Staying informed on legal industry trends, competitive technology, and evolving market needs to guide clients with insight and confidence.</li></ul>iM Qualified Because I Have…<ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">5+ years of experience in account management or strategic customer partnerships within B2B SaaS or professional services environments.</li><li class="leading-relaxed">Experience working with or selling to law firms, legal operations teams, or professional services organizations.</li><li class="leading-relaxed">A proven ability to grow existing accounts through proactive engagement, consultative value delivery, and strategic relationship management.</li><li class="leading-relaxed">Excellent communication and presentation skills, with experience engaging stakeholders across IT, operations, and leadership levels.</li><li class="leading-relaxed">Strong commercial acumen and the ability to balance client advocacy with business objectives.</li><li class="leading-relaxed">Proficiency in CRM systems such as Salesforce for forecasting and pipeline management.</li><li class="leading-relaxed">A collaborative and solutions-oriented mindset with strong attention to detail and follow-through.</li><li class="leading-relaxed">A Bachelor’s degree or equivalent combination of education and experience.</li></ul>Bonus Points If I Have...<ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Experience in legal technology, document management, or professional services software.</li><li class="leading-relaxed">Familiarity with complex selling or account growth methodologies such as MEDDICC, SPIN, or Challenger.</li><li class="leading-relaxed">Experience working with channel partners, implementation teams, or resellers to enhance customer outcomes.</li><li class="leading-relaxed">A passion for supporting the legal industry’s transformation and helping firms modernize the way they work.</li></ul>Don't meet every qualification listed above? Studies show that women and people of color are less likely to apply to jobs unless they meet all qualifications. At iManage, we are committed to building a diverse and inclusive environment, and encourage everyone to show up as their full authentic selves. We welcome those that come with a growth mindset and a hunger for learning; so, if you are excited about this role but your past experience doesn't align perfectly with every qualification we encourage you to apply anyways!iM Getting To…<ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Join a rapidly evolving, industry-leading SaaS company on an exciting journey of growth and scalability!</li><li class="leading-relaxed">Take on meaningful, high-impact challenges by leveraging cutting-edge technologies and best-in-class protocols to drive innovation.</li><li class="leading-relaxed">Own my career path with our internal development framework. Ask us more about this!</li><li class="leading-relaxed">Expand my skill set and earn certifications with unlimited access to LinkedIn Learning courses and interactive Microsoft courses & training.</li><li class="leading-relaxed">Be part of a supportive and experienced team within a dynamic, inclusive, and encouraging culture.</li><li class="leading-relaxed">Enjoy flexible work hours that empower me to balance personal time with professional commitments.</li><li class="leading-relaxed">Collaborate in a modern, open-plan workspace featuring a gaming area, free snacks and drinks, and regular social events.</li></ul>iManage Is Supporting Me By...<ul class="list-disc list-inside my-5 pl-5 space-y-2 text-gray-700"><li class="leading-relaxed">Creating an inclusive environment where I can help shape the culture not just by fitting in, but by adding to it.</li><li class="leading-relaxed">Providing a market competitive salary that is applied through a consistent process, equitable for all our employees, and regularly reviewed based on industry data.</li><li class="leading-relaxed">Rewarding me with an annual performance-based bonus.</li><li class="leading-relaxed">Offering comprehensive Health/Vision/Dental/Life Insurance, and a 401k Retirement Savings Plan with a company match up to 4%.</li><li class="leading-relaxed">Granting enhanced leave for expecting parents; 20 weeks 100% paid for primary leave, and 10 weeks 100% paid for secondary leave.</li><li class="leading-relaxed">Providing me with a flexible time off policy to take the time off that I need. Be it for vacation, volunteering, celebrating holidays, spending time with family, or simply taking time to recharge and reset.</li><li class="leading-relaxed">Having multiple company wellness days each year to prioritize mental health and well-being.</li><li class="leading-relaxed">Providing access to RethinkCare, a global behavioral health platform that enhances personal well-being, strengthens professional resilience, and empowers parental success through expert-led training and resources.</li></ul>The overall US annual base salary range for this position is $100,000 - $140,000 per year. Individual compensation for each candidate depends on factors such as qualifications, experience, and candidate location. This range does not include additional forms of compensation, such as bonuses, commission, or benefits. Your recruiter will provide further details about the offer range, incentives, and overall compensation during the hiring process.iManage is committed to providing an excellent candidate experience and will never ask you to engage in recruitment activity via text and exclusively communicates from emails using the @imanage.com domain. If you have any concerns or questions about communications you have received, please send them to careers@imanage.com so our team members can review.About iManage…At iManage, we are dedicated to Making Knowledge Work™. Our intelligent, cloud-enabled, and secure platform is trusted by 4,100+ customers and 430,000 users worldwide, managing over 11 billion documents and 11 petabytes of data. We empower professionals across 65+ countries to unlock the full potential of their business content and communications.We are continuously innovating to solve the most complex professional challenges and enable better business outcomes; Our work is not always easy but it is ambitious and rewarding.So we’re looking for people who embrace challenges. People who thrive on solving problems, pushing boundaries, and collaborating with the industry’s best and brightest. That’s the iManage way. It’s how we turn the impossible into reality, empower our employees to grow, unlock their potential, and create a meaningful impact on everything we do.Whoever you are, whatever you do, however you work. 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This assessment gives us an idea of your C++ skills- Companies that evaluate this skillset in interviews: Rockstar Games, Ubisoft, Mayhem Studios, etc.- 10 Multiple Choice questions- Average time to complete: 7 to 10 minutes

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