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Ernesto Almario
From Philippines 02:27 AM (GMT+08:00)
$30/hr

Active 3 hours ago


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Full-stack Engineer

Web3 Developer
Available for hire
Years of experience
4+ years
Experience level
Mid-level
Available for
Full-time, Part-time, Contract, Freelance
Available from
15 Jun 2026
Download Resume / CV

I’m a Web3 developer focused on building practical, production-ready systems rather than just experimental prototypes. What makes me different is how I bridge traditional backend engineering with blockchain-native architecture—treating smart contracts, APIs, and microservices as one connected system instead of separate worlds.

I’ve worked on projects involving NestJS microservices, gRPC gateways, and blockchain integrations, including NFT data retrieval and token-based systems. On the smart contract side, I’ve explored Rust-based frameworks like Ink and worked with blockchain environments where performance, security, and deterministic execution matter.

I also focus heavily on real-world usability. A lot of Web3 products fail not because of blockchain limitations, but because of poor UX, unclear flows, or weak backend design. I try to solve that by building systems that feel as smooth as Web2 apps—fast APIs, clean architecture, and clear data flows between on-chain and off-chain components.

What makes me unique is that I don’t just “build on blockchain.” I build systems where blockchain is one layer of a larger product—supporting payments, ownership, identity, or value transfer—without making it feel complicated for users or developers.

At the core, I’m someone who enjoys solving infrastructure-level problems and turning complex Web3 mechanics into simple, scalable applications people can actually use.

Languages

Employment History

Platform Engineer Manager at Rak Son OPC 2024 - 2026
- Technical Leadership: Directed the architecture, engineering, and operations of a hybrid Web3 gaming platform, reporting directly to the CEO and leading cross-functional teams of software engineers, game developers, and UI/UX designers. - System Architecture: Standardized enterprise system design by defining service boundaries, API contracts, and microservice communication patterns; produced all core technical documentation, architecture diagrams, and ERDs. - Full-Stack Development: Engineered high-performance, modular frontends using Angular, React, and Next.js alongside secure, optimized NestJS (Node.js) backends. - Database Optimization: Enhanced cross-platform database performance across MongoDB and MariaDB through advanced indexing and strategic query tuning. - Web3 & Smart Contracts: Developed and deployed Rust-based smart contracts using the ink! framework for Substrate-based environments, integrating Polkadot APIs for wallet connectivity and transaction handling. - Ecosystem Integration: Launched NFT logic, token utilities, and on-chain game mechanics within the Xode Blockchain ecosystem, ensuring gas optimization and rigorous security testing. - Executive Alignment: Advised the CEO and Co-founders on technical risks, resource allocation, and budget estimation, aligning engineering milestones with high-level business objectives and marketing rollouts.
Sr. Software Engineer at Blockspace Corporation 2023 - 2024
- System Architecture: Architected and documented comprehensive, end-to-end system designs—including ERDs and API specifications— ensuring the scalability and maintainability of enterprise-grade applications. - Full-Stack Engineering: Developed scalable, high-throughput backend services using NestJS (Node.js), and Laravel, while seamlessly building modular, responsive user interfaces using Next.js, React, Vue, and Angular with Shadcn UI to optimize render performance and component reusability. - Database Engineering: Managed and tuned complex data schemas across MongoDB and MySQL, significantly reducing query latency through advanced indexing and schema optimization. - Web3 & Blockchain: Spearheaded dApp functionality within the Xode ecosystem, integrating Polkadot APIs to ensure secure wallet connectivity and seamless on-chain transaction handling. Quality Assurance: Maintained high application reliability by enforcing - Test-Driven Development (TDD) practices, comprehensive unit testing, and rigorous debugging workflows. - Technical Leadership: Mentored junior and mid-level developers, establishing high engineering standards through structured code reviews and clean code principles. - Strategic Advisement: Collaborated directly with the CEO and executive leadership at Rak Son OPC to align complex technical roadmaps with core business objectives.
Jr. Software Engineer at Human Incubator Inc. 2022 - 2023
- Full-Stack Development: Developed and maintained responsive web applications using a versatile tech stack including PHP (Laravel), Angular, Node.js, and Vue.js. - IoT & Desktop Engineering: Engineered a dedicated Windows Forms third-party desktop application to interface with IoT weight scale hardware, bridging physical device metrics with system data. - Database Management: Managed and optimized relational data models within MySQL to ensure stable and efficient application data layers. - UI/UX Prototyping: Translated application requirements into interactive wireframes and high-fidelity user interface designs utilizing Figma before technical execution. - Quality Assurance: Authored and executed comprehensive unit tests to validate core business logic, minimizing production defects and ensuring code maintainability. - Agile Collaboration: Maintained tight feedback loops by delivering regular velocity and task updates to the Senior Software Engineer, participating actively in code reviews.

Education

Bachelor of Science in Information of Technolgoy at Cebu Eastern College 2015 - 2019