cv

Exported from my [LinkedIn profile](https://www.linkedin.com/in/manuelsh/)

Basics

Name Manuel Sánchez Hernández
Label Engineering Director of Machine Learning at Adevinta
Email mansanher@gmail.com
Summary Director of Machine Learning of Adevinta, with the objective of maximising the value of ML in the largest online classifieds company globally and the largest digital company of Spain. Our mission: "We make ML easy and impactful". Some of our workstreams: building ML solutions for the whole organisation, co-creating Adevinta's ML (and Generative AI) strategy, building infrastructure to ease ML’s development, training product owners, engineers and management (over 500 people) in ML, defining hiring process and career development of ML roles, etc. Additionally: - Upskilling of CEOs and C-level executives on strategies to capture the value of ML for their business. - Gold medal in Kaggle ML competition. - Invited teacher on ML at ESADE, UPF and learning facilitator in two US universities. - Co-writer of a textbook used in IE Business School, UAM and URJC. - Awarded with the Caja Madrid scholarship. Tuition fees & living expenses paid for a MSc in London. - Masters in (1) Mathematics and Finance and (2) Theoretical Physics from the Imperial College London. - Co-built automated investment strategies at Morgan Stanley with over $1.5 billion of assets under management.

Work

  • 2024.01 - Present

    Barcelona, Catalonia, Spain

    Engineering Director of Machine Learning
    Adevinta
    Leading the central Machine Learning Tribe of Adevinta, with the mission to make machine learning very easy and impactful for the rest of the teams in the company, with high focus on Generative AI.
  • 2020.11 - 2023.12
    Invited teacher / learning facilitator on machine learning
    Different universities
    1) Invited teacher on machine learning at ESADE Insurtech online training. 2) Providing seminars, content, exercises, individual sessions, etc. for other online courses in ML in two of top 10 US universities. 3) Apr 2018 - Feb 2021 · 2 yrs 11 mos Barcelona, Catalonia, SpainBarcelona, Catalonia, Spain Providing a quarterly seminar on how machine learning is done at scale in the enterprise world to the students of the Economics and Business Faculty of Universitat Pompeu i Fabra.
  • 2019.12 - 2024.01

    Barcelona Area, Spain

    Head of Product of Machine Learning Services Area
    Adevinta
    Co-heading the Machine Learning Services area of Adevinta. As Product Lead, I am responsible of "what the area does": objectives, products, relationship with stakeholders and strategy. The area is composed by three teams, and serves all our marketplaces globally. Our mission: "make machine learning easy and impactful to all teams in Adevinta". During 2020 our company was able to deliver more ML than in the previous 4 years, totalling more than one hundred ML use cases. The number of teams doing ML increased by 60%, the time to build and deploy ML models was reduced by 15%, and hundreds of people were trained in ML. Some of the main initiatives of our area: (1) We improve Adevinta marketplaces with our ML models: from image recognition to recommender systems and NLP. The results of our models impact millions of users daily, helping them find what they are looking for, making the marketplaces safer, or reducing our costs and increasing our revenue. (2) We nurture an active internal ML community with hundreds of members to share learnings, best practices, tooling, use cases, etc. (3) We build tooling to make ML teams more effective, by working very close to the ML community. During 2020 we were able to build and deploy an ML platform to 80% of teams in Adevinta, providing them with new capabilities and reducing their time to build and deploy ML by 15%. (4) We increased the knowledge and adoption of ML with in house online trainings for both business and tech people: the ML academy. Hundreds of participants finished it, rating over 92%, and more than half of the participants identified new opportunities with ML in their business domain.
  • 2017.12 - 2018.07
    Co-writer of textbook - Machine Learning and Big Data
    IE Business School
    Co-authored the Machine Learning and Big Data section of the "Manual of Economic and Competitive Intelligence", which is used as main textbook of the Economic Intelligence courses of Instituto de Empresa, Universidad Autonoma de Madrid and Universidad Rey Juan Carlos. Book was published by editorial Tirant Lo Blanch, ranked as best academic editorial in Spain.
  • 2016.09 - 2019.12

    Barcelona Area, Spain

    Senior Data Scientist
    Schibsted Media Group
    Collaborating with over 10 teams in the company, delivering value on models related to SEO, SEM, UX, Security, working with over 8 marketplaces. Built and deployed models with different levels of complexities, from deep learning (specially NLP) to more traditional machine learning (e.g. gradient boosting). Normally worked embedded for a few quarters inside engineering teams. Used to work with agile methodologies (Scrum) and collaborative tools (Jira, Github...). Some of the tools & algos frequently used: TensorFlow, Pytorch, Scikit Learn, Pandas, GPU model optimisation, TensorBoard, Spark, Docker, AWS, Linux, Python, Scala, Jupyter. Advising management on scaling machine learning across the company and marketplaces. Advice given in form of memos, presentations or informal discussions. One of the major barriers to scale machine learning is the knowledge gap. Creator of internal workshops "Machine Learning and Deep Learning for coders" & "ML for Business", over 200 people trained in several 1 to 3 days sessions, rated 4.8 out of 5 (105 raters).
  • 2014.03 - 2016.09

    London, United Kingdom

    Machine learning business and technical consultant
    Self-Employed
    Worked for (1) a multi-awarded hedge fund, (2) the largest asset manager of Europe and (3) a FinTech startup. Projects included: - Interim CEO of a $5M media company specialized in automatic trading during transition after buyout. We were able to make it profitable again. - Developing of quantitative strategies and solutions to trading desks. - Developing BI tools that allowed sales teams discover new opportunities of the order of hundred million USD notional.
  • 2011.03 - 2014.02

    London

    Senior Data Scientist, Quantitative Analyst
    Morgan Stanley
    Worked in the front office equities trading desk: - Developed, maintained, and help selling/marketing automatic investment strategies which brought more than $1.5 billion of assets under management. - Optimum portfolio construction and analysis using improved estimators of the covariance matrix. Employed to reduce volatility, hedge assets, increase liquidity, etc. - Morgan Stanley was awarded with several prizes by independent bodies which highlighted quantitative strategies which me and my team developed. The awards included Best UK Structured Product House (2013) and Best Equity Derivatives House (2013) by Structured Products magazine and International Financing Review. See, for example http://goo.gl/2oASZi and http://goo.gl/tx6dBn
  • 2003.02 - 2009.07

    Barcelona, Catalonia, Spain

    Product Manager
    Arbora & Ausonia (Procter & Gamble JV)
    A&A was an Iberian Consumer Goods company, which belonged to Procter & Gamble. The company was the market leader in more than six multi million euros brands. Business Unit Product Manager (2006-2009) - Responsible for launching new products to the market, leading a multifunctional team of 11 members. - Increased top brand profit double digit vs previous year, using best in class P&G marketing framework. Production Planning Manager (2003-2006) - In charge of three members team, responsible for planning the production of three production plants. - Coordinator of international teams (Europe, Japan & USA) for Import/Export projects.

Volunteer

  • 2012.09 - Present
    Mentoring
    Harris Academy Bermondsay
    Mentoring of students. I look to inspire and help them by communicating positive values and speak about the implications of their own career decisions.

Education

  • 2009.12 - 2010.12
    MSc
    Imperial College London
    Mathematics and Finance
  • 2006.12 - 2006.12
    Postgrade
    Universitat Pompeu Fabra
    Marketing
  • 2001.12 - 2002.12
    MSc
    Imperial College London
    Theoretical Physics
  • 1997.12 - 2001.12
    MSc
    Universidad de La Laguna
    Physics

Awards

  • 2019.02.28
    Gold medal in Kaggle Data Science competition (position 11 out of 4,037)
    Kaggle
    I used a Deep Learning NLP model implemented with PyTorch and torchtext, in the Quora Insincere Questions Classification (detect toxic content to improve online conversations). https://www.kaggle.com/manuelsh
  • 2013.12.31
    Best UK Structured Products House, Best Equity Derivatives House
    Structured Products magazine, International Financing Review
    Several awards won by Morgan Stanley highlight quantitative strategies under my development. http://goo.gl/SEkDKf http://goo.gl/2oASZi http://goo.gl/ehndQI
  • 2010.12.31
    Communication Awards
    As product manager in P&G, awarded best spot in international advertisement festival (2010), Best Social Campaign 2008 (internal P&G prize), Best Press Campaign given by national magazine (2008), Best Advertisement of P&G Marketing Communication Seminar (2007).
  • 2009.04.30
    Scholarship Caja Madrid
    Caja Madrid
    Awarded with a scholarship from Caja Madrid which fully sponsored the MSc in Mathematics and Finance, including living expenses
  • 2001.12.31
    Collaboration Scholarship
    Spanish Ministry of Education
    Awarded with a scholarship which allowed me to collaborate with the Fundamental Physics Department on a research which culminated later on a publication on Physics Review.
  • 1997.12.31
    National Physics Olympics
    Fourth prize in the Spanish National Physics Olympics.

Publications

  • 2008.11.30
    Escape of photons from two fixed extreme Reissner-Nordström black holes
    Physics Review
    We study the scattering of light (null geodesics) by two fixed extreme Reissner-Nordstr\"om black holes, in which the gravitational attraction of their masses is exactly balanced with the electrostatic repulsion of their charges, allowing a static spacetime. We identify the set of unstable periodic orbits that constitute the fractal repeller that completely describes the chaotic escape dynamics of photons. In the framework of periodic orbit theory, the analysis of the linear stability of the unstable periodic orbits is used to obtain the main quantities of chaos that characterize the escape dynamics of the photons scattered by the black holes. In particular, the escape rate which is compared with the result obtained from numerical simulations that consider statistical ensembles of photons. We also analyze the dynamics of photons in the proximity of a perturbed black hole and give an analytical estimation for the escape rate in this system.

Languages

Spanish
Native
English
Full professional proficiency
Catalan
Limited working proficiency
German
Limited working proficiency

Projects

  • 2014.02 - Present
    Portfolio of Best Systematic Investment Strategies
    After exploring and backtesting hundreds of ideas, has constructed a portfolio of the best ones, which include statistical arbitrage and effective alpha extraction. Most of the ideas are uncorrelated to the market, have a low exposure time (sometimes less than half an hour a day) with no overnight risk, and have high Sharpe Ratio.
  • 2024.07 - 2024.09
    Contributor to Transformers Library
    Added dynamic resolution input for all Clip family models in the Hugging Face Transformers library, improving the following models: altclip, bridgetower, chineseclip, clip, clipseg, kosmos_2, x_clip and git. Listed as "Significan Community Contributions" in the release 4.46.0. https://github.com/huggingface/transformers/releases/tag/v4.46.0
  • 2010.06 - 2010.09
    On the Optimization of a Fund of Funds
    Download project on http://goo.gl/53SJpi Grade A. With Morgan Stanley’s Quantitative & Derivatives Strategies group, used real market data of more than 3, 000 mutual funds to build optimum portfolios. Implemented and backtested different optimization models: Markowitz, Shrinkage, Multifactor, PCA… After the project I was offered a permanent position at Morgan Stanley.
  • 2009.12 - 2010.12
    Personal Portfolio Manager
    Following value investing principles have outperformed the market during the whole investing period: +14.3% vs market in 2010 +11.2% vs market in 2009 Books recommended: - The Essays of Warren Buffett: Lessons for Investors and Managers - Warren Buffett and the Interpretation of Financial Statements: The Search for the Company with a Durable Competitive Advantage - The Intelligent Investor. Benjamin Graham - Security Analisys. Benjamin Graham and Frank Dodd
  • 2009.12 - 2010.12
    Senior Investment Strategist at the Imperial College Investment Club
    Developed the long term strategy for an active management fund for students, with a value investing approach.