Joseph Nicholas Alcantara Email & Phone Number

Dumaguete, Central Visayas, Philippines

Dumaguete, Central Visayas, Philippines

Resonate Music Therapy Studio is the only music therapy studio in the Visayas, Philippines. Our studio offers specialized music therapy services catering to individuals and groups of all ages and abilities. We are committed to providing inclusive support to everyone who walks through our doors. Whether you're seeking therapeutic intervention or simply seeking the healing power of music, we're here to help you on your journey.The studio is currently led by my wife which is a licensed music therapist. I am in charge of in all things technical which are as follows:* Company Website(resonatemusictherapystudio.com) - still in progress* Client management system - planning stage* Employee accounting system - planning stageThis role is really exciting since I get to learn new technologies and build software from the scratch(which means more room for learning).

Philippines

• Implemented Risk Limit Management for Archax OMS.• Implemented API handlers in NodeJS to process data from OMS to DB.• Implemented admin API handlers in the Matching Engine Library to interface between the MatchingEngine and OMS.• Designed a round-robin connection/reconnection approach in preparation for MatchingEngine scalability.• Implemented a cross-project utility library. Extracted and refactored common helper functions fromacross projects.• Implemented a message version check as part of client logon. This validates the message alignment onboth client and the Matching Engine.• Implemented a performance tool for the Matching Engine which will send payloads of order messagesusing Unix Sockets and calculate the overall metrics.• Implemented a timeout interval controlled non-blocking connect/reconnect for client connections tothe Matching Engine.• Implemented session storage to cache executions and orders in a specific session.• Led a team of 3 software engineers to develop features and maintain the Matching Engine.• Organised team pre-planning meetings to properly understand task complexities and formulate ”good enough”estimations.• Designed a metric service that will query all business metrics as criteria for organisation rebalancingin multiple OMS. This is part of the OMS scalability to have multiple organisations per OMS.• Designed the OMS rebalancing flow which discusses scheduled and admin-triggered rebalance, OMSstate changes, and post-rebalancing behaviours(includes fetching of open orders in 24/7 venues andfetching of organisation details).• Implemented a FIX test client in Golang to test inbound and outbound messages to and from the exchange.It also supports burst mode to benchmark the FIX middleware.• Designed and implemented a subscription model for OMS. This functionality enables the OMS to onlyprocess inbound messages from the Matching Engine based on what organisation it’s subscribed to.

New Territories, Hong Kong Sar

• Created the ABE token with solidity.• Core developer for Abelian cryptocurrency, a Monero fork which aims to be quantum resistant.• Integrated the quantum signature scheme Dilithium for Abelian and exchanged some of the ed25519 computations.• Created and modified unit-tests and functional with google test and python to further improve code quality.• Created python scripts to run functional block and transaction testing using the RPC.• Researching (ongoing) about Ring Signatures, RingCT, and Lattice based cryptography.• Integrated new scheme on quantum proof linkable ring signatures(https://github.com/salrs/salrs).• Created integration tests, flow test, and contract test and APIs for Corda smart contracts for tradefinance applications.• Currently doing backend work on Contour trade and finance application specifically for Letter of creditapplications and amendments, which the whole backend codebase is developed with Spring Boot and smart contract development with Corda, all using Kotlin.

Dumaguete, Negros Island Region, Philippines

Working on 🎸 pickup code

Cebu, Central Visayas, Philippines

- Implemented a distinct handling feature for Apple SMTP server using Embedded C++, enhancing compatibility and functionality.- Successfully transitioned projects from Unix Makefile to CMake, streamlining the build process.- Addressed and resolved printer firmware code issues, including both functional concerns and Coverity and Canary vulnerabilities.

Remote

• DevOps work. Implemented a CI/CD server using Travis CI, Circle CI, Jenkins CI which calls a gitian- builder and results 3 platform builds.• Integration of new MTP(MerkleTreeProof) to electrumx server,a python based server for the electrum wallet client.

- Integrated Horizen support into Ledger Nano S Hardware Wallet, enhancing compatibility and user experience.- Implemented domain fronting for ZenCash Light Wallets (Arizen Wallet, ElectronJS), improving security and privacy.- Expanded build capabilities for Horizen source on macOS platforms, increasing accessibility for developers.- Added Horizen support to Trezor T hardware wallet, broadening user options and functionality.- Developed automated unit tests for Ledger Nano S and Trezor T hardware wallets, ensuring reliability and performance.- Integrated advanced daemon-specific features into the Horizen Java Swing Wallet, optimizing wallet functionality and user experience.

Cebu, Central Visayas, Philippines

Post Office UK, Ltd.--------------------- Implemented a parser in MFC C++ using the MSXML library to gather data from the service to be shown on the device UI. - Designed and implemented UI using MFC C++ as language used for the Model and Controller, and XML as for the View.- Implemented a scale wrapper for the Avery scale in MFC C++ to integrate the 3rd party device into the system.- Created a build machine using Jenkins CI for Post Office UK Integration processes.Walmart---------- Designed and implemented UI using MFC C++ as language used for the Model and Controller, and XML as for the View.- Integrated and supported Walmart Mobile Payment for Self Serve Checkout lanes, using MFC C++ and XML.(Bentonville, AR)- Developed Walmart UK Scan Portal for bulk customer shopping experience, developed the behaviors in MFC C++.- Integrated Cash Management project using MFC C++ for Walmart US, which segregates coin and notes denomination in the NCR Self-Serve Checkout Lanes.- Developed a standalone Mobile Simulator written in Java in Linux that will connect to the IBM POS and simulate the mobile payment service.- Developed a log parser in C# which uses telnet to connect to the IBM POS and extract the data for the efficient log tracing.- Migrating the old MFC C++ application UI model to the WPF, using C# and XAML.Australia Post Office--------------------- Developed a router in C# and C++ to POS web service for Australia Post which handles all the business logic and data. - Developed and integrated AMEX payment in MFC C++ into the Australia Post SST.- Designed and implemented UI using MFC C++ as language used for the Model and Controller, and XML as for the View.