Lucas Queiroz

DrChrono by EverHealth

About job...

Skills: Python, Django, TypeScript, React, Docker, Redis, MariaDB

Bit Complete

Bit Complete is a tech services firm that provides on-demand, highly skilled developers to accelerate product development. At Bit Complete, I worked with the Hypernatural.ai project, an AI video platform to create videos from a script or idea.

• Development of search and video exploring features powered by Algolia search, combined with video attributes for result prioritization
• Connect with multiple LLM providers, such as OpenAI, FAL, Pika, Gemini and Anthropic, to deliver video and image generation services from text prompts
• Maintenance and implementation of Django Admin Pages, for LLM evaluation
• Implementation of Geopricing features through CloudFlare and Stripe geolocation
• Implementation of toggle between LLM providers for better response time and increased service uptime

I also worked on some internal projects for Bit Complete, creating n8n workflows and connecting to OpenAI APIs for weekly report summaries from other developers.

Skills: Python, Django, TypeScript, React, Redis, Celery, Docker, PostgreSQL, OpenAI, n8n

PageFreezer

PageFreezer is a SaaS company that providers website and social media archiving solutions.

• Lead the research, design and implementation of a new Feature Flag service, used by all the engineering teams across the company, improving release efficiency and reducing deployment time
• Optimized storage through a data migration, eliminating duplicate and inconsistent entries from a Cassandra database, reducing database costs
• Designed and implemented new Social Media archiving systems, connecting to Slack and Microsoft Teams, expanding product capabilities
• Developed near-real-time archiving of platforms without webhook support, improving delivery time of messages and alerts for customers

Skills: Python, Tornado, Redis, Celery, Docker, PostgreSQL, RabbitMQ, AWS

Argyle

Argyle offers income and employment checks for self-employed professionals, allowing better credit scores. At Argyle, I worked across multiple engineering teams.

• Maintenance and development of the main API used by the SDK and dashboard
• Enhanced slow-running queries using Django's ORM, improving response times
• Designed and implemented automations for the HR team, connecting Google Sheets and Notion, reducing manual work from the HR team

Skills: Python, Django, Redis, Celery, Docker, PostgreSQL, RabbitMQ, GCP

Creditas

Creditas is a fintech company in the loans sector. I was part of the Communications team, connecting all the engineering teams to the customers.

• Design and development of an automated NPS service, reducing manual work from customer support teams
• Development and improvements to existing internal APIs, used by the engineering teams at Creditas to send emails, SMS and WhatsApp messages to the customer
• Development of WhatsApp chatbots, reducing response time and manual work from customer teams
• Integration of third-party solutions to deliver email and SMS, such as Twilio and SendGrid, increasing response time and service uptime
• Development of automated phone calls through an IVR

Skills: Python, FastAPI, Kotlin, Spring, JavaScript, React, Redis, Celery, Docker, PostgreSQL

Wirecard Brasil

Wirecard Brasil was a subsidiary of Wirecard, providing payment processing services. My work at the Payouts and Cashflow teams included:

• Design and development of a bill payment service, enabling customers to use their virtual balance to pay bills, transactioning over 1 million BRL during the first 3 months of closed beta
• Development of bank transfers, connecting to major Brazilian banks to process customer payouts
• Enhanced balance calculation for big customers, improving balance consistency and accuracy
• Integration of GitHub CI to run automated tests and deployments

Skills: Python, Django, TypeScript, React, Redis, Celery, Docker, PostgreSQL, OpenAI, n8n

FIAP

Creditas Webinar

Fuel is a HTTP request library for Kotlin. In this talk, I explained how to implement and use this library along with Spring, to receive HTTP request responses as Kotlin objects for easier usage inside projects.

TDC São Paulo

How to be agile and implement continuous delivery with quality and security? In this talk, me and Eduardo Colabardini present how to enable and disable features, products and pieces of code using feature flags. We also show the best practices and challenges we faced at Wirecard Brasil, using an open-source tool called IfMan, developed during a Hackday.