D

Diego Jose

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Senior Software Engineer | Fintech & Blockchain Expert | 55% gas optimization
Rio de Janeiro, Brazil
Contact Diego regarding: 
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Full-time jobs
Starting at COP9M/month ~USD2.61k/month
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Timeline

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Résumé

Jobs verified_user 0% verified
  • CloudWalk
    Senior Full Stack | Blockchain Developer
    CloudWalk
    Mar 2020 - Oct 2024 (4 years 8 months)
    • Built a cross-chain crypto lending platform using Ethereum and Solana, enabling $28M+ in asset swaps. Integrated React/Next.js for real-time dashboards tracking loan collateralization ratios. • Designed a fraud detection system with Python-based ML models (scikit-learn) to flag suspicious transactions, reducing chargebacks by 42%. Paired Node.js microservices with Redis caching for low latency alerts. • Architected a decentralized identity (DID) protocol using Hyperledger Fabric, streamlining KYC processes for 500K+ users. Migrated legacy Angular frontend to Next.js for SEO optimization. • Optimized gas fees by 55% via Layer-2 solutions (Polygon, Arbitrum), reducing transaction costs for high-frequency traders. • Mentored 3 junior en
  • Turing
    Remote Software Engineer
    Turing
    Jun 2018 - Feb 2020 (1 year 9 months)
    • Developed a real-time virtual classroom using React and WebSockets, implementing Node.js cluster load balancing to handle 5,000+ concurrent users, cutting AWS EC2 costs by 30% while maintaining sub-200ms message latency. • Automated grading workflows by integrating OCR (Tesseract.js) into Angular dashboards, cutting manual grading time by 65%. • Created a student performance predictor using Python (TensorFlow) and Flask, analyzing 10M+ data points to personalize coursework. Achieved 89% accuracy in dropout risk forecasting. • Built a reusable UI component library with Angular Material, slashing development time for repeat clients by 35%.
  • R
    Frontend Developer
    RTRJ Tecnologia
    Sep 2016 - Mar 2018 (1 year 7 months)
    • Built real-time blockchain analytics dashboards using D3.js for complex visualizations (wallet clustering, gas fee trends) and Chart.js for high-performance rendering • Developed 5 Angular SPAs for Brazilian e-commerce brands, improving mobile load speeds via lazy loading. • Created a shared Angular Material component library adopted by 3 other frontend teams, standardizing UI patterns across internal projects • Collaborated with backend engineers to design and consume Django REST APIs for inventory management systems, implementing real-time data validation on the frontend to reduce stock mismatches.
Education verified_user 0% verified
  • Google
    Angular Certification
    Google
    May 2023 - Current (3 years 2 months)
  • Ethereum Foundation
    Certified Ethereum Developer (CED)
    Ethereum Foundation
    Feb 2022 - Current (4 years 5 months)
  • Amazon Web Services
    AWS Certified Solutions Architect - Associate
    Amazon Web Services
    May 2021 - Feb 2024 (2 years 10 months)
  • U
    Bachelor of Science
    Universidade de São Paulo (USP)
    Jan 2012 - Jan 2016 (4 years 1 month)