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Alejandro Amat Payá

Electrical & Computer Science Engineer

Pittsburgh, PA

+1 412 512 9640

Hi, I'm Alejandro Amat, a 24-year-old Electrical and Computer Science Engineer currently working as a Research Associate at Carnegie Mellon University. In addition to my role, I attend classes in the Master's program in Robotics at CMU. My research and interests span GPU development, computer graphics, machine learning, computer vision, and real-time performance.

- Carnegie Mellon University

Pittsburgh, PA

  • Attending classes of the MSR (M.Science in Robotics) from CMU.

- Carnegie Mellon University

Pittsburgh, PA
02/2024 - 05/2024

  • Visiting scholar at Carnegie Mellon Robotic's Institute pursuing my Electrical and Computer Science Thesis working on real-time Inverse Rendering through Automatic diifferentiation with Slang shader language. Built differentiable rendering pipelines from scratch using Slang, C++, and gfx API, achieving a 116x speedup in inverse texturing over NVIDIA Falcor and a 4x boost in 2D Gaussian Splatting. Under the supervision of dr. Fernando de la Torre and Francisco Vicente at the Human Sensing Lab. Granted wtih 3 scolarships to cover expenses : Erasmus+, Mobint & CFIS. Thesis: Thesis. Mark: 10/10.

- Double Degree Program (CFIS, UPC)

Bcn, Spain
2019 - 2024

  • CFIS is a center of excellence of the Polytechnic University of Catalonia (UPC) created to recruit, select and tutor students with sufficient capacity and motivation to pursue interdisciplinary studies that include two of the degrees that make up the UPC offer.

Bachelor's Degree in Telecommunication Technologies and Services Engineering (ETSETB, UPC)

  • Major in Signal Processing
  • 10 honours: Audio Processing, Data Transmission, Electronic Functions and Systems, Vectorial Calculus, Introduction to Electronics, Mobile Communications, Advanced Engineering Project, Multimedia Codification, Advanced Operating Systems & Object Oriented Programming.
  • 8.17 / 10 Mark Transcript
  • Award to the 6th best student from the 2024 class out of 240. Diploma
  • Relevant coursework: Artificial Inteligence, Image Processing, Audio Processing, Communication Technologies, Probability and Statistics, Telematic Networks & Data Transmission, Electromagnetism & Radiation, Electronics & Digital Systems

Bachelor's degree in Computer Science Engineering (FIB, UPC)

  • Major in Information Technologies
  • Relevant Coursework: Graphics & Interfaces, Operating Systems, Cryptography & Computer Security, Network Protocols, Computer Architecture, Algorythms & Data Structures, Software Architectures

- Escola Betània-Patmos

Bcn, Spain
2013 - 2019

  • Technological Baccalaureate
  • 9,03 / 10

- Oak House British School

Bcn, Spain
2004 - 2013

  • Award to the best student of the Promotion (+30 honours/year)

- Research Associate.

Pittsburgh, PA
05/2024 - present

Carnegie Mellon University

  • I have led several initiatives aimed at advancing real-time graphics and rendering systems. My work spans the optimization of computational pipelines, the development of state-of-the-art tracking systems, and the creation of next-generation rendering techniques—all with a focus on efficiency, scalability, and cutting-edge performance.
  • Worked in enhancing 3D Gaussian Splatting. Re-architected the backend using modern C++ and CUDA, implementing advanced forward and backward computational methods to achieve significant performance improvements across various GPU configurations.
  • Designed and implemented a robust real-time 3D tracking solution utilizing advanced optimization techniques to ensure reliable performance in diverse environments.
  • Constructed custom differentiable rendering pipelines from scratch using Slang, C++, and contemporary graphics APIs, achieving substantial performance gains—such as a 116x speedup in inverse texturing and a 4x boost in 2D Gaussian Splatting—over conventional approaches.

- Unity VR developer.

Bcn, Spain
12/2023 - 05/2024

IESE University

  • Working for IESE developing a Virtual Reality application in Unity using the GoogleCardboard SDK in collaboration with Victor Martínez de Albéñiz
  • Immersive "Gustav Klimt" museum experience while tracking position, rotation and ray casted interactions and storing the data in Google Firestore.
  • Optimising immersion by using ray casted interactions, immersive audio, physical to virtual displacement computations and realistic model rendering & lighting.
  • Movement Detection with sensor fusion (accelerometer + gyroscope) and relative GPS trajectory inclusion.
  • Android and Ios versions available at Apple Store, for Android and Web Browser & MacOs/Windows executables at link

- VR/XR Researcher. AI Driven Systems.

Bcn, Spain
05/2023 - 12/2023

i2cat Foundation

  • Developing real-time 3D Imaging algorithms using MIMO FMCW mmWave radar systems through optimal positioning of Intelligent reflective surfaces & Neural Network architectures. Optimizaton of SNR/coverage homogeneity around UE and image reconstruction.
  • Working under the guidance of dr. Filip Lemic and dr. Xavier Costa, scientific director in the lab.
  • Published chapter "Location-based real-time utilization of reconfigurable intelligent surfaces for mmWave integrated communication and sensing in full-immersive multiuser Metaverse scenarios" at "Advanced Metaverse Wireless Communication Systems". Chapter.
  • Developed a Matlab VR 3D imaging and SNR FMWC signal simulator. Github

- Big Data Analyst

Bcn, Spain
05/2022 - 09/2022

Mango (Punto FA)

  • Managing the Incoming data from various corporative sources and ingesting it into Mango's Cloud Infrastucture while developing Software with Pyspark, Dbt , MySQL and Python for the Data Layer's manipulation.
  • CI/CD development with Jenkins and Automatization Processes with Airflow.
  • AWS (EC2, Airflow, S3, Lambda, Sagemaker), Docker & Git.
  • Developed a Python library to connect to DataBricks Server from any interface.
  • Working under the supervision of Daniel Gómez.

- IT Developer

Bcn, Spain
09/2020 - 04/2021

IndahJoyas

  • Developed A Fully-responsive Web Client with Javascript, Html, Css and Wordpress.
  • Website: IndaJoyas

- Game Developer

Bcn, Spain
2018 - xxxx

Autonomous

  • Developing 2D and 3D local games (PC & Mobile) with Unity Engine and C#
  • 3D modelling with Blender
  • More information about Games in Projects section

Awards & Honours


  • Telecommunications 6th Best student of the 2019/2020 class (2020) Diploma
  • Best promotion student at Oak House British School (2013)
  • Destacable result at the 2017 "Proves Cangur " Competition (2017) Diploma
  • Classification to the second fase of "Fem Matemàtiques " competition (2014) Diploma
  • Acceptance to the CFIS program

Languages


  • Spanish: Native
  • English: C1 (CAE), 2019
  • Catalan: Native
  • German: Basic

Skills


Technical Skills

  • C++, CUDA, Python, PyTorch, MATLAB, x86, OpenGL/GLSL, Vulkan/HLSL, Git, Qt, Unity3D, Unix/Linux, Build Systems.

Soft Skills

  • Leadership
  • Critical thinking & Under-Pressure Resolution
  • Strong communication skills
  • Adaptability
  • Teamwork-Driven
  • Easy-Going
  • Enthusiastic towards learning

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Differentiable Rendering with Slang

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Virtual Museum Unity App (To Do)

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HP Python Package

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GPU-JPEG with CUDA

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AI Animal Tracking App (To Do)

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3d Imaging Radar Simulator (To Do)

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Skin Tone Detector

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Finger Detector

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Client-Server Moodle App Project (To Do)

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Operating System Kernel Implementation

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Audio Processing Tasks (To Do)

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Computer Security Projects (To Do)