thomrich94
Blockchain Developer
Motivated Blockchain Developer with a strong focus on Node.js/TypeScript (NestJS), Bitcoin Layer-1 (PSBTs, multisig, RBF), Ethereum smart contracts, and Fireblocks-based compliance. Transitioned from operations by automating processes (Node.js, SQL) into full software engineering. Proven record of reducing costs, improving reliability, and delivering secure, scalable financial infrastructure.
Experience: 3 years
Yearly salary: $60,000
Hourly rate: $25
Nationality: 🇧🇷 Brazil
Residency: 🇧🇷 Brazil
Experience
Executive Assistant to CEO
DJConsultoria 2015 - 2022
Led activities related to Customs Control and Documentation for all export/import operations, consistently ensuring 100% adherence to current laws and regulations. Designed and deployed internal Node.js + SQLite applications to automate customs/export documentation validation and inventory tracking, reducing errors and delays by 90%. Built and maintained REST APIs to sync client contact data from spreadsheets into the CRM, improving sales tracking accuracy and enabling real-time updates. Automated invoice generation by integrating Excel macros with a Node.js backend, reducing processing time by over 80% and minimizing human error. Created lightweight frontend dashboards (HTML, CSS, JavaScript) to display shipment status and low-stock alerts, improving visibility for non-technical staff. Applied SQL queries and reporting scripts to generate insights on material usage and supply chain efficiency, enabling better business decisions.
Skills
api
blockchain
docker
kubernetes
nestjs
postgres
redis
solidity
typescript
btc
english