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Gustavo P
@gustavo_gapx3
Building resilient cloud backends that scale seamlessly without breaking
Perù
Spagnolo, Inglese
Chi sono
Hi! I'm Gustavo, a Senior Backend Engineer & AWS Certified Developer Associate with 6+ years of experience. I specialize in building high-availability backends and cloud architectures using Node.js, TypeScript and AWS. From designing secure APIs to automating infrastructure with AWS CDK/Terraform and setting up automated CI/CD pipelines, I build resilient systems engineered to scale without breaking. Let's chat and bring your production-ready platform to life!
🔗 See my full work at: https://gustavopalacios.dev
Competenze
Gustavo P
offline •
Consulta i miei servizi
Elaborazione serverless
I will build a secure and scalable AWS serverless backend
Elaborazione serverless
I will build an automated AWS file and data processing pipeline
Portfolio
Esperienza lavorativa
Fintech
Full time • 1 yr 10 mos
Senior Backend Developer
Mar 2026 - Present • 4 mos
CSTI Corp | Client: Culqi — Lima, Peru - Developed and implemented microservices for the WaaS ecosystem, achieving a latency SLA of less than 3s (p99) across 50 TPS streams and establishing comprehensive platform observability using APM and distributed tracing. - Built a multi-tenant persistence layer in Amazon Aurora, scaling to more than 80,000 merchants and implementing application-level concurrency control to prevent tax collisions under heavy load. - Implemented event-driven architectures (EventBridge, SQS, Lambda) to automate SUNAT batch processes, and configured elastic scaling in Kubernetes clusters based on event queue demand instead of CPU utilization. - Applied advanced security and performance strategies, integrating B2B authentication (Cognito/API Gateway), implementing caching for ephemeral states, and establishing M2M credential rotation with Zero Downtime.
Software Engineer
Jun 2025 - Feb 2026 • 8 mos
Softtek | Client: Rimac Seguros — Lima, Peru - Designed and developed event-driven serverless ecosystems, supporting the critical processing of over 10,000 accreditations and 5,000 daily batches with a 99.9% uptime. - Automated AWS infrastructure (IaC) utilizing CDK with TypeScript and Terraform to provision ECS Fargate, ECR, SQS, and DynamoDB. - Implemented enterprise design patterns (Pipeline, Strategy, Builder) and BDD testing with Cucumber/Jest to ensure code coverage higher than 85% and maintain high code quality. - Engineered secure hybrid cloud-on-premise communication integration with IBM MQ via VPC peering. - Optimized database queries and schemas by implementing GSI indexes in DynamoDB, reducing read latency by 50%.
Full Stack Developer
Aug 2024 - Jun 2025 • 10 mos
Kibernum | Client: AFP HABITAT — Lima, Peru - Developed scalable REST services in Laravel, applying design patterns (Repository, Factory, Strategy) to decouple business logic and drastically improve system maintainability. - Refactored legacy code applying SOLID principles and Clean Code, successfully reducing technical debt by 30% and improving overall system readability. - Optimized the data layer and queries in Oracle and MySQL, reducing response times by 40% through index creation and the implementation of caching strategies with Redis. - Automated the development lifecycle by configuring deployments with Jenkins and Docker, enhancing platform stability and reducing production failures by 50%. - Programmed high-security integrations using third-party biometric verification services (TOC/Facephi), optimizing identity validation for the critical AFP Transfer process.
