system.online
Backend Developer — Building Scalable Infrastructure
I design and implement robust backend systems that power modern web applications. With expertise in Node.js, NestJS, and database architecture, I transform complex requirements into efficient, secure, and scalable solutions. Currently contributing to filaRural and working at SeedaBit Tecnologia.
work_history
Building the RU Sem Desperdício web experience for Smart RU, focused on meal scheduling, history, weekly menu access, profile management, and user flows that help reduce food waste.
SeedaBit Tecnologia
Developing and maintaining complex RESTful APIs and microservices for agricultural technology platforms. Implementing secure authentication systems with data encryption, optimizing database queries for high-traffic endpoints, and establishing CI/CD pipelines for seamless deployments.
Open Source / Professional Project
Architecting backend solutions for a platform connecting rural producers with agricultural markets. Building real-time notification systems, implementing payment processing integrations, and designing data pipelines for analytics.
Independent Work
Designed and deployed complete web applications from concept to production. Built responsive frontends with HTML and CSS, developed server-side logic, configured cloud hosting, and managed deployment pipelines. Gained hands-on experience with the full development lifecycle.
featured_work
Full-featured marketplace and gallery for gaming assets. Built with a focus on performance, featuring deep-level security audits, real-time filtering, and a robust voting system.
Smart RU web platform for meal scheduling, history tracking, weekly menu access, and student flows designed to reduce food waste.
Digital storefront for software and game licenses, with a dark interface, product browsing, category navigation, cart flow, and account actions for customers.
Discord bot for the Deepwoken community, built to support players with focused game utilities, server interactions, and a direct invite flow.
Designed and deployed a centralized API gateway handling authentication, rate limiting, and request routing for multiple microservices. Implemented OAuth2 flows, end-to-end encryption, and multi-layered DDoS protection with traffic analysis, IP blacklisting, and automatic threat response.
Comprehensive security testing and QA pipeline for critical infrastructure. Implemented automated penetration testing workflows, vulnerability scanning, and DDoS simulation testing. Established incident response protocols and real-time monitoring dashboards.
A personal project implementing AES-256 encryption standards for secure data storage and retrieval. Built with a focus on security best practices including hashed credentials and encrypted-at-rest data.
Real-time data processing pipeline for agricultural metrics. Ingests data from multiple sources, performs transformations, and serves aggregated analytics to dashboard consumers with sub-second latency.
Site pessoal desenvolvido com carinho. Uma página especial com design elegante e experiência personalizada.
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get_in_touch
Currently open to new opportunities and interesting collaborations. Whether you have a project in mind or just want to connect, I'd love to hear from you.
arthuriarleydev@gmail.com