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Kenneth ZambranoKZ

Kenneth Zambrano

Senior Software Consultant • · Lead Developer

€321/day
Madrid, ES
8-15 years

Average response time: 1 hour

About Kenneth

I am a senior full-stack and engineer with over nine years of experience building production-grade applications across Web2, Web3, and regulated enterprise environments. My background combines hands-on engineering, system architecture, and technical leadership, with a strong focus on delivering secure, scalable systems from concept to production.

Throughout my career, I have designed and implemented decentralized applications, smart contracts, microservices architectures, and real-time data systems. I have led frontend and full-stack development for trading platforms, NFT marketplaces, voucher systems, and enterprise decentralized identity solutions. At Genius, I was responsible for building a high-performance decentralized exchange interface, ensuring pixel-perfect execution and seamless integration with blockchain infrastructure.

In addition to startup and product environments, I have contributed to enterprise and regulated system delivery through Viken Blockchain Solutions, working on decentralized identity platforms and compliance-oriented systems requiring strong architectural discipline and audit readiness.

I am comfortable operating as a senior individual contributor, technical lead, or consulting engineer. I take ownership of architecture decisions, performance optimization, and end-to-end delivery, while maintaining clear communication with stakeholders and cross-functional teams.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • Japanese

    Conversational

  • Chinese

    Basic

Can work on-site
Madrid (up to 50km)

Experience

  • BOM Systems (GoZero)
    Senior Software Consultant • · Lead Developer
    January 2025 - January 2026 (1 year)
    Full technical ownership of a certified carbon accounting and emissions reporting platform. Architected and implemented the system from prototype to production. Ensured compliance with DEFRA, ISO 14064-1, and GHG Protocol. Delivered RBAC, audit-ready data models, and regulatory reporting. Platform actively used in the UK market.
  • Katari Codes
    Senior Full-stack developer
    January 2024 - January 2025 (1 year)
    Application for Small Businesses and Individuals to Buy and Sell Fiat-to-Crypto Vouchers.
    Website for Promotion: A public-facing service
    Vendor Portal
  • Viken Blockchain Solutions
    Senior Full-Stack Developer • · Blockchain Engineer • · Consultant
    January 2021 - January 2026 (5 years)
    Delivered enterprise-grade Web3 systems across multiple client engagements. Designed and implemented smart contracts (ERC-20, ERC-721, ERC-1155). Built wallet, identity, tokenization, and NFT platforms. Participated in CertiK-audited smart contract projects. Responsible for end-to-end delivery from MVP to production.

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