Alexander De Souza personal email
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From leadership and architecture, to design and development, I enjoy the challenge of engineering ideas into fully-fledged solutions. Motivated by these interests, my career has taken me across a wide variety of industry domains both directly and as a consultant, on projects in healthcare to finance to space applications. I've helped to lay the foundations for machine learning at start-ups and large corporations, from San Francisco to Amsterdam.I’m an enthusiastic communicator and regularly enjoy giving presentations and talks on the topics and issues I'm passionate about, which is allowing others to digest the beautiful complexity that underlies these increasingly ubiquitous models.
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Director Of EngineeringSkywatchWaterloo, On, Ca -
Machine Learning & Image Processing LeadSkywatch Nov 2021 - PresentKitchener, CanadaLeading multiple teams responsible for the image processing and machine learning components of SkyWatch's end-to-end delivery to ensure high fidelity satellite imagery to a global client base, delivering more than USD$2M of imagery annually.· Implemented a ML-driven imagery quality solution to identify image artifacts prior to delivery to customers, reducing the need to refund poor quality imagery by > 95%.· Architected and led the implementation of a SotA cloud detection algorithm (custom UNet implementation) to filter potentially obscured imagery and provide cloud masks to interested users (using Tensorflow; see publications).· Rearchitected, and was the primary individual responsible for implementation, of SkyWatch's image processing stack (AWS, Serverless, Python, and using GDAL), reducing the cost to process imagery by 90%.· Invited author to write for AWS Blogs highlighting SkyWatch use cases (AWS EFS, CodeArtifact, CodeBuild, CodePipeline, Lambdas, and Step Functions).· Invited speaker at AWS re:Invent 2023 discussing Edge Computing in space (Las Vegas, USA, 2023).Additional Professional Service· Leading collaborations with University of Waterloo's VIP Lab and University of Toronto's Vector Institute.· Published two peer-reviewed journal articles on machine learning applications on satellite imagery.· Presenter at IEEE WHISPERS 2023. -
Head Of Machine LearningKatana Labs Dec 2019 - Sep 2021London, United Kingdom• Designed and implemented the ML models that formed the core product: Identifying bond trading opportunities for institutional investors: PyTorch implementations of ensemble CNNs integrating static data and multi-featured time series data.• Collaborated in the architecture and implementation of the backend infrastructure: Kubeflow pipelines in GCP, running Apache Beam for ETL.• Oversaw the development, assessment, and interviews of all new technical hires as the team grew from 4 - 20 individuals.• Wrote white papers for fund-raising, participated in media releases, and interviews (e.g., FI-Desk: AI Paradigms for Bond Trading).• Technical liaison in developing partnerships with third-party vendors. -
Senior Deep Learning EngineerReplicant Jan 2019 - Dec 2019San Francisco, UsaGuided R&D, implementation, and maintenance of the ML models that are replicant.ai’s product: "Faster than real-time" conversational AI (~USD$1.0M annually). Composed of end-of-speech detection, named-entity recognition, intent detection, response prediction (LLMs), and text-to-speech generation. These were implemented in PyTorch using combinations of CNNs, BiLSTM-CRFs, and text-to-Mel spectrogram CNNs (Patent US-20200402497-A1). -
Senior Data ScientistIng Sep 2016 - Dec 2018Amsterdam, The Netherlands• Incepted the design and implemetation of a real-time streaming trading platform for ING’s financial markets’ teams. Backend in Java, Scala, and Python. Co-developed a linear probabilistic model with XGBoost for the real-time price prediction. I was also responsible for the project’s front-end development (HTML5 and CSS, with JS and D3). This product improved returns by upwards of EUR€1M (press releases available online).• Contributed to development of an entity matching algorithm for entities in transactional statements versus ING’s internal nomenclature (implemented in PyCUDA).• Involved in the hiring, mentoring, and supervising of new data scientists into ING’s Wholesale Banking Advanced Analytics, which grew from ~30 to 100+ during my tenure.• Co-supervised two MSc students at the University of Amsterdam. -
Ing Top Graduate ProgramIng Sep 2015 - Aug 2016Amsterdam, The NetherlandsContributed to multiple projects across three distinct departments:• Cooperated in the inception of a liquidity/hit-rate recommender system for ING’s Emerging Markets Bonds Desk (in Python); led the development of the recommender system itself.• Implemented a suite of scalable MC simulations that was deployed by ING for calculating default risk charge (in C++ with CUDA); worked closely with the Global Head of Risk Management to classify and quantify intrinsic and systemic counterparty risk.• Implemented a rule-based trade vetting algorithm to assist in automating low volume trades for ING’s bond trading desk (in Java, integrated with ION Marketview Trading Platform). -
Phd In Astrophysics (Scientific Computing)The University Of Western Ontario Sep 2010 - Aug 2014London, CanadaConducted independently driven research, developing multi-processor finite-element and -volume hydrodynamical simulations to investigate the mechanisms driving the formation of the first protostellar objects in the universe; utilizing advanced statistical methods to extract potential observational signatures.Thesis: "Observational Signatures from Self-Gravitating Protostellar Disks". (Publications below.) -
Medical Engineering InternshipSunnybrook Health Sciences Centre Sep 2004 - Aug 2005Toronto, CanadaWorked closely with research scientists and medical professionals in the research and development of a focused ultrasound device for the treatment of individuals with prostate cancer. Directly responsible for the engineering of a focused ultrasound array, and for the development of the image processing algorithms used for extracting thermal deposition information from MRI images. -
Condensed Matter Physics InternshipSimon Fraser University Jan 2004 - Apr 2004Burnaby, CanadaAssisted with the design, construction, and calibration of a THz time-domain spectrometer. Directly responsible for writing the device control software. -
Research InternshipUniversity Of Toronto Sep 2003 - Dec 2003Toronto, CanadaWorked with NASA's MODIS instrument onboard the Terra mission to study the development of extreme weather phenomena. Developed a background in image processing techniques, such as: stacking images to increase S/N; and performing image interpolations to artificially enhance resolution. -
High School Physics Teaching InternshipPeel District School Board Jan 2003 - Apr 2003Rick Hansen Secondary School, Mississauga, CanadaTaught Grade 11 physics in a class of 31 students, responsible for lectures, testing, and grading. Additionally developed extracurricular activities for all students, teaching martial-arts classes and starting an ultimate frisbee club.
Alexander De Souza Skills
Alexander De Souza Education Details
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Astrophysics (Scientific Computing) -
Astrophysics -
Honors Physics (Astrophysics)
Frequently Asked Questions about Alexander De Souza
What company does Alexander De Souza work for?
Alexander De Souza works for Skywatch
What is Alexander De Souza's role at the current company?
Alexander De Souza's current role is Director of Engineering.
What is Alexander De Souza's email address?
Alexander De Souza's email address is al****@****ail.com
What schools did Alexander De Souza attend?
Alexander De Souza attended Western University, Western University, University Of Waterloo.
What skills is Alexander De Souza known for?
Alexander De Souza has skills like Latex, Physics, Science, Matlab, Scientific Writing, Data Analysis, Research, Programming, Numerical Analysis, Python, Statistics, Teaching.
Who are Alexander De Souza's colleagues?
Alexander De Souza's colleagues are Marc Fleck, Kate Medvedeva, Matt Scobel, Joan Ngatia, Hugo Tuesta, Manpreet Singh, Kevin Perez.
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Alex Ferreira de Souza
Montreal, Qc -
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