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Kayque Dias

@kayquedias

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I build high-performance backend systems, distributed services, and AI tooling that solve production-scale problems.

Brazil

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What I'm looking for

I'm looking for remote opportunities in LATAM, North America, or Europe where I can build and optimize backend, distributed systems, and LLM-powered tooling end-to-end.

At Icarotech, I build backend and AI tooling for network operations, including a Spring Boot BFF managing 30,000+ connections and WebSocket collectors for deep-sea telemetry across six vendors.

I've diagnosed production issues and redesigned slow systems to cut response times from 30–40 seconds to 10–15 seconds, reduce pagination latency by 75%, and accelerate an LLM-agent file-analysis pipeline with Python multithreading.

Across freelance fintech/gaming work and construction platforms, I’ve delivered end-to-end systems, optimized high-traffic queries, modernized legacy algorithms, and built automation that reduced manual reporting from hours to minutes.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer — Backend & AI Tooling

Current

Icarotech

Jan 2025 - Present (1 year 8 months)

Diagnosed and fixed critical backend issues, cutting response times by up to 75% and optimizing LLM-agent pipelines. Built a Spring Boot BFF microservice managing 30,000+ network connections and led a solo sprint covering a tech lead's absence.

Freelance Full-Stack / Backend Developer

Independent Contractor

Feb 2024 - Oct 2025 (1 year 8 months)

Optimized high-traffic queries and built payment-gateway abstractions with Redis caching. Refactored a legacy betting algorithm using dynamic programming and delivered full engagements for international clients, including a zero-downtime migration.

NestJS Prisma Redis TypeScript JavaScript NodeJS Python Dynamic Programming Regression Testing Payment Gateways System migration Performance Optimization Debugging Refactoring

Full-Stack Developer / IT Support

Salinas Empreendimentos e Construções

Jul 2023 - Feb 2024 (7 months)

Built a Python + Selenium automation that reduced a manual government-reporting workflow from 1-2 hours to minutes. Designed a construction-management platform from scratch with role-based access and progress tracking.

Python Selenium Tkinter PyInstaller React NestJS AWS Role Based Access Control Stakeholder Management

Software Engineer (Intern → Junior)

Grupo Sobrancelhas Design

Sep 2022 - Jul 2023 (10 months)

Built a RESTful API with unit tests and shipped 20+ React components from Figma prototypes. Contributed to Dockerized gRPC microservices and debugged across multiple codebases.