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Ernesto Almario

Software Engineer, Web3 Engineer

AvailableFull-Stack DevelopmentCebu, Philippines$40/hr

About

Full Stack Developer | Technical Project Manager | Web3 & Smart Contract Engineer | Software Engineer

Web3 Platfrom Manager

Rak Son OPC · Aug 2024 to Apr 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 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.

Senior Software Engineer

Blockspace Corporation · Jul 2023 to Jul 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.
Frontend Engineering: Developed modular, responsive user interfaces using Angular, React, and Next.js, leveraging Shadcn UI to maximize component reusability and optimize render performance.
Backend Infrastructure: Built secure, high-throughput backend services using Fastify (Node.js), implementing robust authentication mechanisms and optimized RESTful APIs.
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

Human Incubator Inc · Mar 2022 to Jul 2023

Full-Stack Development: Developed and maintained responsive web applications using a versatile tech stack including PHP (Laravel), Angular, 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.

Cebu Eastern College

Bachelor of Science, Information of Technology · Jun 2015 to Apr 2019

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