Senior/ Manager, Machine Learning, Customer Support Engineering

Airbnb

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. Your Location: This position is CHINA BASED. The role may include occasional work at an Airbnb office or attendance at offsites, as agreed to with your manager. Your recruiter will inform you what cities you are able to work from depending on your personal legal working identity and Airbnb internal policies.   The Community You Will Join: Machine Learning and Artificial Intelligence are at the heart of the Airbnb product. From Trust to Payments, and from Customer Service to Marketing we rely on ML to ensure that guests and hosts have the best possible experience with Airbnb.  The Community Support Products (CSP) Machine Learning team is the core team responsible for driving CSxAI (Customer Support x Artificial Intelligence) initiatives by adopting the Generative AI technologies to enable an intelligent, scalable and exceptional service experience. The team develops and enhances various AI models, ML services and tools including LLM fine-tuning and optimization, RAG/Search,  LLM evaluation and testing automation, feedback-based learning and guardrail for a wide range of applications in Airbnb.  The richness of Airbnb's data, the complexity of its marketplace and the variety innate in our product mean that we need to operate at the state of the art of AI practice. We are committed to investing in long term innovation to solve the complex problems we face, and to do that we need the very best experts in ML and AI to join us.   The Difference You Will Make: We believe our current customer experiences in these domains are only scratching the surface of the innovations that are possible, and that science is at the heart of delivering a step-function change for our Guest and and Host on Airbnb.  You will build and leverage cutting edge AI technologies to transform Airbnb’s customer service by delivering personalized, easy-to-use and proactive customer service experience.  Many of the initiatives you’ll tackle are in their early conceptual stages. You will have the opportunity to shape these ideas from inception to production, turning visionary concepts into impactful realities.   A Typical Day:  * Envision, champion, and support the development of novel ML systems, product integrations, and performance optimizations to solve real-world problems * Work cross-functionally with product, design, and other engineering counterparts to design and build efficient AI solutions for Airbnb CS products * Learn and share the latest AI/ML technologies with the team across regions( China and the US).    Your Expertise: * PhD/Master’s degree, preferably in CS, or equivalent experience * 4+ years of ML engineering experience, with ownership responsibility over large-scale software systems.  * Background in the design and development of AI and ML systems and services, and a deep passion for building efficient and scalable ML-powered products * Experience with LLM driven chatbot and Agentic AI products would be a big plus * Excellent communication skills and the ability to work well within a team and with teams across the engineering, product & design organizations * Fluency in both English and Mandarin is essential.   Our Commitment To Inclusion & Belonging: Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

Man Group

About Man Group Man Group is a global alternative investment management firm focused on pursuing outperformance for sophisticated clients via our Systematic, Discretionary and Solutions offerings. Powered by talent and advanced technology, our single and multi-manager investment strategies are underpinned by deep research and span public and private markets, across all major asset classes, with a significant focus on alternatives. Man Group takes a partnership approach to working with clients, establishing deep connections and creating tailored solutions to meet their investment goals and those of the millions of retirees and savers they represent. Headquartered in London, we manage $228.7 billion* and operate across multiple offices globally. Man Group plc is listed on the London Stock Exchange under the ticker EMG.LN and is a constituent of the FTSE 250 Index. Further information can be found at www.man.com At Man Group, we respect your privacy and we are committed to protecting and safeguarding your Personal Data. We have developed policies and processes which are designed to provide for the security and integrity of your Personal Data. We are committed to Processing your Personal Data fairly and lawfully, and being open and transparent about such Processing. For further information on how we process your data, please see the privacy notice for applicants here * As at 31 March 2026   The Role As an Lead Quantitative Developer in the Front-office Engineering organization at Man Systematic, you will work closely with Quantitative Researchers and Portfolio Managers. Your challenges will be varied and may include onboarding new datasets, implementing new trading signals, developing portfolio optimization tools, building data visualization frameworks, enhancing our research platform, and performance tuning existing code using efficient numerical algorithms and cluster-computing solutions. As the local lead for our growing Front-office Engineering team in China, you will also be instrumental in hiring, onboarding, and shaping the team from the ground up.   Our Technology Our systems are almost all running on Linux and most of our code is in Python, with the full scientific stack: NumPy, SciPy, Pandas, statsmodels, and scikit-learn to name a few of the libraries we use extensively. We implement the systems that require the highest data throughput in Java. For storage, we rely heavily on MongoDB and MS SQL.  We use Control-M and Airflow for workflow management, Kafka for data pipelines, Bitbucket for source control, Jenkins for continuous integration, Grafana + Prometheus for metrics collection, ELK for log shipping and monitoring, Docker for containerisation, OpenStack for our private cloud, Ansible for architecture automation, and Slack for internal communication. Our technology list is never static: we constantly evaluate new tools and libraries.   Technology and Business Skills We strive to hire only the brightest, best and most highly skilled, passionate technologists.    Key Competencies Required * 5+ years of professional experience in software engineering, preferably with a focus on quantitative applications * Experience as a technical lead or people manager, encompassing both team development (hiring, building teams, and mentoring junior engineers) and project management (driving technical delivery) * Expert knowledge of Python and Pandas and proficiency with related scientific libraries including NumPy, SciPy, statsmodels, and scikit-learn * Experience developing mission-critical production systems, with knowledge of best practices for testing, monitoring, and deployment * Proficient on Linux platforms and strong understanding of Git * Working knowledge of one or more relevant database technologies, such as MS SQL, Postgres, or MongoDB * Demonstrated experience working with large data sets, both structured and unstructured Advantageous * Experience in quantitative software development within a front-office setting, such as at a hedge fund, proprietary trading firm, or investment bank * Experience building web applications using modern frameworks like React * Proficient with distributed computing technologies such as Spark, Dask, Kubernetes, Redis * Knowledge of modern data engineering practices including data pipeline & ETL tools, distributed storage & processing and data warehousing * Strong understanding of financial markets and instruments * Experience working with financial market data * Relevant mathematical knowledge e.g., statistics, time-series analysis   Personal Attributes * Strong academic record and a degree with high mathematical and computing content e.g., Computer Science, Mathematics, Engineering or Physics * Intellectually robust with a keenly analytic approach to problem solving * Self-organised with the ability to effectively manage time across multiple projects and with competing business demands and priorities * Focused on delivering value to the business with relentless efforts to improve process * Strong interpersonal skills: able to establish and maintain a close working relationship with quantitative researchers, portfolio managers, traders and senior business people alike * Confident communicator: able to argue a point concisely and deal positively with conflicting views   Working Here Man Systematic has a small company, no-attitude feel. It is flat structured, open, transparent and collaborative, and you will have plenty of opportunity to grow and have enormous impact on what we do.  We are actively engaged with the broader technology community. * We regularly talk at leading industry conferences across the globe * We host and sponsor Boston meetups and London’s PyData and Machine Learning Meetups * We open-source some of our technology, including our ultra-high-performance DataFrame database, ArcticDB. See https://github.com/man-group for a full list and more information. We believe that agile working allows us to deliver the best business outcomes for our clients and investors as well as having a positive impact on work-life balance and the wellbeing of our staff. We are simultaneously committed to “levelling the playing field” and believe that agile working promotes inclusivity across teams, regions and business units. In general, Technology roles are expected to be in the office for 3-4 days a week. However, the specifics can vary based on the role, team, and individual circumstances, and are ultimately subject to the manager’s discretion. We offer competitive compensation, a generous holiday allowance, various health and other flexible benefits. We are also committed to continuous learning and development via coaching, mentoring, regular conference attendance and sponsoring academic and professional qualifications. Inclusion, Work-Life Balance and Benefits at Man Group You'll thrive in our working environment that champions equality of opportunity. Your unique perspective will contribute to our success, joining a workplace where inclusion is fundamental and deeply embedded in our culture and values. Through our external and internal initiatives, partnerships and programmes, you'll find opportunities to grow, develop your talents, and help foster an inclusive environment for all across our firm and industry. Learn more at www.man.com/diversity. You'll have opportunities to make a difference through our charitable and global initiatives, while advancing your career through professional development, and with flexible working arrangements available too. Like all our people, you'll receive two annual 'Mankind' days of paid leave for community volunteering. Our comprehensive benefits package includes competitive holiday entitlements, pension/401k, life and long-term disability coverage, group sick pay, enhanced parental leave and long-service leave. Depending on your location, you may also enjoy additional benefits such as private medical coverage, discounted gym membership options and pet insurance. Equal Employment Opportunity Policy Man Group provides equal employment opportunities to all applicants and all employees without regard to race, color, creed, national origin, ancestry, religion, disability, sex, gender identity and expression, marital status, sexual orientation, military or veteran status, age or any other legally protected category or status in accordance with applicable federal, state and local laws. Man Group is a Disability Confident Committed employer; if you require help or information on reasonable adjustments as you apply for roles with us, please contact TalentAcquisition@man.com.

Airbnb

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: The Community Support Engineering (CSE) China Foundations team works together with our US partners to co-own the Community Support foundations systems, collectively empowering every step of the customer support journey. We're building the next-generation case management platform that gives a 360-degree view of every customer interaction, helping ambassadors resolve guest and host issues faster. At the same time, we're developing the centralized supervisor portal alongside agent quality systems that turn performance insights into actionable coaching signals. Our routing platform connects Airbnb customers to the right ambassador, through the right channel, at the right time. The team also provides AI-powered solutions to support TechOps around system inconsistencies and incidents to ensure high availability and reliability of critical CS flows. The Difference You Will Make: We are seeking an experienced Engineering Manager to lead the China Routing and Data Service team. In this role, you will: * Ramp up on the team’s technology, product, and business goals, including hands-on work to develop a deep technical understanding. * Lead, mentor, and grow a high-performing engineering team in a fast-paced environment. * Foster a team culture that emphasizes product thinking, technical depth, and customer-centric problem solving. * Drive and partner closely with teams across CSE to understand business cases and deliver intuitive, scalable routing and data solutions. * Set clear priorities and strategic direction in collaboration with cross functional partners.. * Improve team processes to strengthen collaboration and ways of working, execution efficiency, and delivery quality. * Lead complex, cross-functional projects that align with business goals and deliver measurable impact.   A Typical Day:  As an Engineering Manager on the China Routing and Data team, you will: * Collaborate with other senior leaders and peers to define and drive long-term technical strategy and architecture that enables the company’s future vision. * Collaborate with and influence cross-functional partners to design and deliver high-quality products. * Lead team technical initiatives, and work cross-functionally to identify opportunities for business impact, refine, and prioritize requirements for engineering systems. * Lead conversations that align technical efforts with business outcomes and product priorities. * Nurture a culture of technical quality and engineering excellence from design, through code review, to production. * Enable and empower ICs to grow their impact beyond individual contributions, creating opportunities for them to lead technical initiatives that span across platforms and organizations. * Retain, grow and hire a team of high-performing engineers. Build a strong and diverse team capable of turning ambitious product visions into a polished reality.   * reality.     Your Expertise : * 9+ years of relevant software development industry experience in a fast paced tech environment. * Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience. * Excellent communication and collaboration skills. Proven experience working with many engineering teams and cross functional partners.  * Strong expertise in building large-scale backend systems and experience in user facing features. * Strong product and design instinct, previous proven experience building delightfully designed experiences. * Flexible in leadership style, can adapt to a variety of ways of working depending on the situation. * Experience leading and shipping large initiatives with high business impact. * Creating a strong culture of operational excellence with focus on raising the bar for quality, reliability and availability. * Good judgment in making tradeoffs to balance short-term business needs with long-term technical quality. * Strong communication skill and ability to influence decisions from a wide variety of stakeholders. * Experience fostering an inclusive and engaging team environment. * Able to identify, retain, grow and acquire critical talent. * Strong commitment to fostering diversity, equity, and inclusion within teams. * Fluency in communication in English and Mandarin.    Your Location: This position is working remotely within China Mainland. The role may include occasional work at an Airbnb office or attendance at offsites, as agreed to with your manager. Your recruiter will inform you what cities you are able to work from depending on your personal legal working identity and Airbnb internal policies.   Our Commitment To Inclusion & Belonging: Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.