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Paulo Oliveira

PROFILE

Paulo Oliveira

Paulo Oliveira contributed to the LedgerHQ/ledger-live and ledger-app-database repositories by building and enhancing blockchain integration features over a four-month period. He developed a blockchain-agnostic balance retrieval system for Aptos accounts, implemented transaction crafting and signing capabilities, and introduced block data retrieval for the XRP Ledger. His technical approach emphasized robust API integration, end-to-end and unit testing, and stable configuration management using JavaScript, TypeScript, and Node.js. Paulo also addressed system stability by reverting problematic updates in ledger-app-database. His work demonstrated depth in full stack and blockchain development, delivering foundational features that improved asset support and data access for Ledger products.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

7Total
Bugs
1
Commits
7
Features
3
Lines of code
4,318
Activity Months4

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for LedgerHQ/ledger-live: Delivered XRPL Block Data Retrieval API in the coin-xrp module, introducing getBlock and getBlockInfo methods to fetch XRP Ledger block data and related transactions. This work provides foundational data access for XRP-based features and analytics, enabling block-level visibility and traceability. The feature was implemented with a dedicated commit adding AlpacaApi getBlock implementation for the coin-xrp module (16177269ef833dbba0a5baa91e664da26d500a15), and code merged into the main repo after review. Impact includes improved data accuracy and support for XRP asset workflows, with groundwork for future analytics and auditing capabilities.

September 2025

1 Commits

Sep 1, 2025

September 2025 focused on stabilizing the LedgerHQ ledger-app-database repo by reverting the Celo App Swap support update to avoid introduced issues. No new features were deployed this month; the primary work was a targeted rollback and ensuring codebase stability for the upcoming release.

May 2025

3 Commits • 1 Features

May 1, 2025

Monthly summary for 2025-05: LedgerHQ/ledger-live delivered a major Aptos Transaction Crafting API Enhancements, expanding capabilities to create, sign, and broadcast Aptos transactions via Aptos Alpaca API integration. Key capabilities include crafting raw transactions from intents, signing and combining signed transactions, and supporting multiple asset types (native coins, standard coins, fungible assets) with use-all-amount handling. Added comprehensive unit and integration tests validating serialization, signing, combination, and asset handling. This work reduces user friction, enables more complex Aptos asset flows, and strengthens Ledger Live's presence in the Aptos ecosystem. Commits underpinning the work include: 12af22b9690928a409ad81d679575ee3b017a702, d8a1c0500253b53a25151c47dd3ae36e21baa8bc, 6612406fd6c212252f5828dc86c2b0b1e939d6c5.

April 2025

2 Commits • 1 Features

Apr 1, 2025

April 2025 focused on delivering a new blockchain-agnostic balance retrieval capability for Ledger Live by integrating the Aptos API via the Alpaca wrapper. The work unlocks real-time balance visibility for Aptos accounts and lays groundwork for expanded asset support in future sprints. No major bugs were reported this month; attention remained on robust API integration and test coverage.

Activity

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Quality Metrics

Correctness92.8%
Maintainability84.2%
Architecture87.2%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaScriptTypeScript

Technical Skills

API IntegrationAPI developmentBlockchainBlockchain DevelopmentCryptographyFull Stack DevelopmentFull stack developmentJavaScriptJestNode.jsTestingTypeScriptblockchain developmenttesting

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

LedgerHQ/ledger-live

Apr 2025 Jan 2026
3 Months active

Languages Used

JavaScriptTypeScript

Technical Skills

API IntegrationBlockchain DevelopmentFull Stack DevelopmentFull stack developmentJestNode.js

LedgerHQ/ledger-app-database

Sep 2025 Sep 2025
1 Month active

Languages Used

No languages

Technical Skills

No skills

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