Andrés Felipe Velásquez Trujillo
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Andrés Felipe Velásquez Trujillo

Andrés Felipe Velásquez Trujillo  new_releases

About

Detail

Blockchain Engineer | Smart Contracts Solidity & Web3 Full Stack Development && Mathematician
Antioquia, Colombia
Contact Andrés regarding: 
work
Full-time jobs
Starting at USD7k/month
Flexible work
Starting at USD45/hour
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Networking

Timeline

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school
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Project

Résumé

Jobs verified_user 60% verified
  • I
    Full Stack Web3 Blockchain Engineer verified_user Verified experience
    Investment Armendariz
    Aug 2025 - Current (11 months)
    Implementation of a DeFi platform focused on governance, vault infrastructure, treasury systems, and on-chain operational controls, contributing across smart contracts, frontend architecture, and protocol security. Contributed to: • Smart contract development in Solidity • Vault architecture and governance systems • Modular frontend implementation using React and TypeScript • Web3 integration and hook-based frontend architecture • Treasury systems and operational control development • Unit testing, fuzzing, stateful and stateless testing • Security analysis using Slither and Aderyn • Protocol architecture optimization, maintainability, and scalability improvements Technology stack: Solidity, Foundry, React, TypeScript, TailwindCSS, wagm
  • VITA WALLET
    Full Stack Developer — Fintech & Crypto Integrations verified_user Verified experience public Remote experience
    VITA WALLET
    Aug 2021 - Nov 2025 (4 years 4 months)
    Implementation of new features for web and mobile applications, integrating third-party services through APIs such as Binance, blockchain, payment platforms, financial services, and connections with banks and international payment providers. Additionally, maintenance and optimization of existing code, as well as development of unit and integration tests to ensure the stability, security, and proper performance of the platform. Working with technologies such as Ruby, Ruby on Rails, React, React Admin, React Native, and JavaScript.
  • The Modern Freelancer
    Blockchain & Smart Contract Engineer verified_user Verified experience public Remote experience
    The Modern Freelancer
    Jul 2021 - Current (5 years)
    Blockchain & Smart Contract Engineer focused on the development of decentralized applications (dApps), smart contracts, NFT systems, token standards, and blockchain-based platforms using Solidity and Web3 technologies. Designed and implemented multiple blockchain solutions involving ERC-20/ERC-721 tokens, wallet integrations, decentralized authentication, transaction signing, and smart contract interaction through Web3 providers. Main projects included healthcare systems, NFT marketplaces, decentralized voting platforms, and blockchain-based lottery systems. • Developed smart contracts using Solidity with OpenZeppelin standards for ERC-20 and ERC-721 token implementations. • Built decentralized applications (dApps) integrated with MetaMa
  • Coderhouse
    Full Stack & Blockchain Programming Instructor public Remote experience
    Coderhouse
    Jan 2020 - Jun 2024 (4 years 6 months)
    Programming, Full Stack, and Blockchain Instructor focused on practical software engineering education, technical mentoring, and student guidance across bootcamps, online academies, and independent training programs. Delivered courses and mentorship in technologies including JavaScript, Python, React, Node.js, Solidity, C++, and Full Stack Web Development. • Designed and taught technical courses focused on real-world software development practices. • Mentored students in programming fundamentals, computational logic, backend/frontend development, and project architecture. • Guided students through practical projects using React, Redux, Node.js, Express, PostgreSQL, and REST APIs. • Coordinated study groups, code reviews, and collaborative
  • University of Antioquia
    Mathematics & Physics Instructor
    University of Antioquia
    Feb 2015 - Jun 2021 (6 years 5 months)
    Mathematics, Physics, and Analytical Reasoning Instructor with experience preparing high school and pre-university students for standardized tests and university admission processes. Delivered courses in mathematics, physics, logic, and problem-solving across multiple academic institutions and educational programs in Colombia. • Designed academic materials, exercises, mock exams, and personalized learning methodologies. • Strengthened students’ analytical thinking, logical reasoning, and quantitative problem-solving skills. • Led classroom instruction for high school, pre-ICFES, and pre-university preparation programs. • Adapted teaching strategies to different learning levels and academic objectives. • Provided academic mentoring and con
Education verified_user 19% verified
  • L
    English Language and Literature, General verified_user Verified experience
    London School of Commerce, London, United Kingdom
    May 2025 - Aug 2025 (4 months)
  • Cyfrin Updraft
    Smart Contracts Security; Blockchain Engineer; Smart Contracts Solidity public Remote experience
    Cyfrin Updraft
    Jan 2024 - Jun 2025 (1 year 6 months)
  • Udemy
    Aprende Typescript de 0 a 100 public Remote experience
    Udemy
    Jun 2021
  • Udemy
    Fundamentos de Git en Cloud public Remote experience
    Udemy
    Mar 2021
  • LinkedIn
    Fundamentos del desarrollo web: Full Stack o Front-end public Remote experience
    LinkedIn
    Mar 2021
  • Henry
    Desarrollador Full Stack verified_user Verified experience public Remote experience
    Henry
    Feb 2021 - Current (5 years 5 months)
    - Desarrollador Full Stack
  • Coursera
    Aprende a programar con Python - Especialización public Remote experience
    Coursera
    Dec 2020 - Current (5 years 7 months)
  • University of Michigan
    Coursera
    Understanding and Visualizing Data with Python
    University of Michigan, Coursera
    Dec 2020
  • LinkedIn
    Aprende SCRUM public Remote experience
    LinkedIn
    Jun 2020
  • U
    Coursera
    Aprendiendo a aprender: Poderosas herramientas mentales con las que podrás dominar temas difíciles (Learning How to Lear public Remote experience
    University of California, San Diego - Rady School of Management, Coursera
    Jun 2020
  • Universidad ded Antioquia
    Matemática Pura
    Universidad ded Antioquia
    Aug 2014 - Dec 2020 (6 years 5 months)
    - Título de Matemático
Projects (professional or personal) verified_user 0% verified
  • Henry
    Full-stack Developer (PI-Dogs) public Remote experience
    Henry
    Jun 2021
    - Desarrollo completo de una SPA (Single Page Application) - Desarrollar el Backend - Desarrollar el Frontend - Desarrollar la base de datos
  • R
    RocketXChange