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Lucas Dias

@lucasdias3

I build backend-focused SaaS platforms, APIs, payments, and asynchronous workflows with TypeScript, NestJS, and PostgreSQL.

Brazil

Message

I've built backend-focused SaaS and product platforms at Zira, Ubistart, and Lumina Lab, using TypeScript, Node.js, NestJS, and PostgreSQL.

At Zira, I designed a multi-tenant technical service management platform and built a modular API with 57 endpoints for finance, inventory, service orders, and workforce management. I also implemented Asaas billing, payment reconciliation, webhooks, token encryption, and asynchronous NFS-e invoicing.

I've delivered healthcare APIs, web and mobile products, real estate pricing workflows with BullMQ and web scraping, and payment-enabled freelance SaaS applications. I work across REST APIs, Docker, CI/CD, React, Next.js, and React Native.

Experience

Work history, roles, and key accomplishments

Full Stack Software Engineer

Zira

Mar 2026 - Aug 2026 (5 months)

Designed a multi-tenant SaaS platform for technical service management, isolating users, settings, and credentials across companies. Built a modular NestJS/TypeScript API with 57 endpoints covering finance, inventory, service orders, and workforce management.

NestJS TypeScript PostgreSQL Asaas Webhooks Encryption NFS E Multi tenant architecture REST APIs

Backend Software Developer

Ubistart

Sep 2025 - Mar 2026 (6 months)

Developed and maintained APIs and business logic for a healthcare management platform using Node.js, NestJS, and TypeScript. Delivered product enhancements, bug fixes, and codebase improvements within a service-oriented architecture.

NodeJS NestJS TypeScript REST APIs Service Oriented Architecture

Full Stack Software Engineer

Lumina Lab

Feb 2025 - Oct 2025 (8 months)

Built web and mobile products with Next.js, React Native, NestJS, PostgreSQL, Docker, and CI/CD pipelines. Developed a real estate pricing platform using BullMQ, web scraping, APIs, and asynchronous processing.