Alexandre Juca
Co-Founder at Entrega
Luanda, Luanda Province, Angola
Summary
🤩
Rockstar🎓
Top SchoolAlexandre Juca is a Co-Founder and seasoned software engineer with 11 years building full-stack, mobile, and backend systems across fintech and payments. He has led product and engineering efforts at startups and scale-ups—driving localization and instant payouts at Yoco, founding payments features at Kamba, and launching early-stage products through his own ventures. Alexandre combines hands-on coding (including numerical work in Elixir’s Nx and UI/UX improvements for the Ghostty terminal) with cross-functional program leadership, navigating legal, security, and operational requirements for multi-market launches. Based in Luanda, he organizes major tech events for the Angolan developer community and has coordinated talks with global computer science leaders, reflecting a talent for both technical depth and ecosystem building.
12 years of coding experience
11 years of employment as a software developer
Certificate, Information Technology, 10, Certificate, Information Technology, 10 at Sarepta High School
English, portugeuse
Stackoverflow
21reputation
222reached
0answers
1question
Github Skills (13)
uid10
macos10
tensor10
zig10
front-end-development10
ui-design10
elixir10
numerical-computing10
terminal-emulator9
drag-and-drop9
jit7
ruby-on-rails6
gpu5
Programming languages (17)
Github contributions (5)
ghostty-org/ghostty
Dec 2024 - Jun 2025
👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:16 reviews, 7 PRs, 36 comments in 5 months
Contributions summary:Alexandre primarily focused on enhancing the Ghostty terminal emulator's functionality and user interface. They added the ability to display memory usage in both bytes and KiB within the inspector window, enhancing the developer's ability to monitor performance. The user also worked on improving the drag-and-drop functionality for text, files, and URLs within the macOS application, improving the user experience. Additionally, the user addressed code related to key encoding and UI element reconstruction.
gpu-accelerationterminal-emulator
elixir-nx/nx
Feb 2021 - Apr 2021
Multi-dimensional arrays (tensors) and numerical definitions for Elixir
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 reviews, 8 commits, 10 PRs in 1 month
Contributions summary:Alexandre focused on improving the core functionality and documentation of the Nx library. They corrected spelling mistakes, improved documentation clarity, and implemented the `triangular_solve` function, indicating a focus on numerical linear algebra. The user also addressed a bug by correcting a function name and made improvements to the backend related to the implementation of the triangular solve.
elixirmultidimensional-arraysgputensorxla
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