José Ribeiro Neto, Developer in London, United Kingdom
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José Ribeiro Neto

Verified Expert  in Engineering

Back-end Developer

London, United Kingdom
Toptal Member Since
March 1, 2022

José is a passionate software developer, excelling in Rust and C++, but his adaptability shines as he chooses the right language for each challenge. He values DevOps, prioritizing automation in benchmarks and tests to deliver top-quality, high-performance code.



Preferred Environment

Linux, C++, Visual Studio Code (VS Code)

The most amazing...

...project I've developed is a memory-efficient sparse tomography algorithm, reducing resource usage by 25x.

Work Experience

Software Developer

2018 - PRESENT
High-performance Geophysics Lab (HPG CEPETRO)
  • Translated Matlab tomography into C++/CUDA, reducing memory usage by +25x (+200 GB).
  • Created a novel metaheuristic, achieving a +5x speedup in optimizing seismic objectives.
  • Accelerated seismic algorithms using C++ and parallel programming libraries (OpenMP, CUDA, MPI).
  • Designed UIs in C++, Qt, and OpenGL for 2D/3D wave propagation.
  • Proposed memory optimization in Reverse Time Migration, achieving +2x memory reduction (-1 TB).
  • Secured funding from Petrobras for seismic objective function research.
  • Implemented Adaptive Differential Evolution (JADE) for +2x optimization acceleration.
  • Employed Python visualization tools to enhance Differential Evolution algorithm analysis.
Technologies: C++, NVIDIA CUDA, MPI, OpenMP, Python, Qt, OpenGL, Django, Amazon EC2, APIs, Multithreading, Open MPI, Back-end Development, Git, Distributed Systems, Amazon Web Services (AWS), GPU Computing, Graphics Processing Unit (GPU), Parallel Programming, C

Pureco App

As a member of the Pureco project, I developed the Android Application 'Pureco Limpeza,' simplifying cleaning service contracting for busy Unicamp students and supporting ladies from Vila Esperança, Campinas, Brazil. The app garnered over a thousand downloads on Google Play, facilitated 500+ cleanings, and positively impacted more than four women. This experience honed my Android development skills and introduced me to technologies like Google Firebase. Additionally, I contributed to the Enactus marketing team, forging partnerships with local businesses to expand our initiatives within the Unicamp and Vila Esperanca community, including Lumière English School and Serasa Campinas.

Revived obsolete computers using a lightweight Linux distribution, integrated them with Arduino and IoT devices, and employed ScadaBR open-source software for resource monitoring and control in a house. Developed Scadroid, an open-source Android App, for remote IoT control and resource usage tracking via ScadaBR.

NP-Hard Problem Solving
Solved Labor-Constrained Scheduling using MiniZinc, achieving top results. Tackled Degree Constrained MST with C++ Lagrangian and Evolutionary heuristics, also achieving top results. Solved 5 Integer Programming problems using Julia/Gurobi and Gnumeric/LPSolve.


C++, Python, Python 3, Java, Kotlin, C, Julia, Rust, SQL, Bash


Qt, Django, Flask


OpenMP, Firebase Android SDK, MPI, OpenGL, Open MPI


Parallel Programming, REST, Testing


Linux, NVIDIA CUDA, Firebase, Android, Visual Studio Code (VS Code), Amazon EC2, Amazon Web Services (AWS), Docker, Kubernetes, Blockchain


Numerical Methods, Scientific Computing, Back-end Development, Multithreading, Software, Algorithms, Distributed Systems, GPU Computing, Graphics Processing Unit (GPU), APIs, Supervisory Control & Data Acquisition (SCADA), SOAP, Mathematics, MiniZinc, Integer Programming, Lagrangian and Evolutionary Heuristics, Smart Contracts, Benchmarking, Integration Testing, Deployment, GitHub Actions, Semantic-release, Open Source, Cryptography


Apache Tomcat, Git, Gurobi, Docker Compose, Helm, CircleCI

2016 - 2021

Bachelor's Degree in Computer Engineering

State University of Campinas (UNICAMP) - Campinas, São Paulo - Brazil


Test of English as a Foreign Language (TOEFL) | Score: 92

Educational Testing Service (ETS)