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Carlos Josue Lopez Solano

@carlosjosuelopezsolano

Full-Stack Java & React Engineer. Expert in event-driven microservices, AWS, and AI integration. Building scalable, high-performance systems.

Mexico

Message

What I'm looking for

I am seeking a full-time Backend or Full-Stack role in a remote-first team. I am looking to apply my experience in distributed systems, financial infrastructure, and reactive architectures within an environment that values high engineering standards, mentorship, and scalable, mission-critical solutions. I want to build resilient software while growing alongside a collaborative, impact team

I am a Full-Stack Engineer focused on architecting resilient, event-driven financial and enterprise-grade systems. While I am early in my professional career, I have spent the last few years intensely dedicated to mastering the modern Java/React stack by building and deploying complex, production-ready distributed platforms from scratch.

Core Technical Expertise:

Backend Engineering: Expert in Java (17–25) and Spring Boot, utilizing Hexagonal Architecture and DDD to ensure business logic remains decoupled and scalable.
Event-Driven Systems: Architected distributed commerce and banking platforms using Kafka, SAGA orchestration, and Transactional Outbox patterns to guarantee auditability and data consistency.
Modern Front-End: Extensive experience with React 19 and Next.js 15, implementing Server Components for instant navigation and high-performance user interfaces.
Cloud & DevOps: Proven ability to build and maintain cloud-native infrastructures on AWS (Lambda, RDS, DynamoDB, Cognito) with Terraform/CDK and Kubernetes-based GitOps workflows.
Performance & Security: Skilled in tuning JVM/GraalVM for sub-10ms latency , implementing ACID transactions with row-level locking , and securing APIs with JWT/Cognito.

Achievements:

Developed a cloud-native NeoBank ecosystem with a high-availability hybrid architecture, achieving parallel transaction processing in under 400ms.
Engineered an intelligent LMS with integrated AI auditing agents, maintaining high concurrency with Virtual Threads while optimizing AWS operational costs to ~$250 MXN/month.
Built and deployed an event-driven food ordering system capable of handling 10,000+ concurrent orders with 99.9% availability.

I am an early adopter who thrives on technical challenges and continuous improvement. I am looking for a remote-first team where I can leverage my experience in distributed systems and software quality to build impactful, scalable financial or enterprise solutions.

Experience

Work history, roles, and key accomplishments

BarberPro -- SistemaSaaS Barberías

BARBER

Apr 2026 - Apr 2026 (0 months)

Engineered multi-role SaaS platform automating scheduling, payroll, and stock management for barbershops. Architected serverless backend using Firebase for sub-millisecond synchronization eliminating double-booking. Implemented Chart.js analytics and white-label customization allowing instant rebranding. Designed granular permission model for secure role-specific interfaces.

React TailwindCSS Supabase

Xavi Comercializadora

Apr 2026 - Apr 2026 (0 months)

Architected comprehensive multi-branch SaaS platform for distributors with professional POS, real-time inventory synchronization across unlimited locations, and executive PDF reporting. Built role-based architecture (Admin/Employee) with Firebase Realtime Database ensuring sub-millisecond data consistency. Implemented Chart.js analytics and automated monthly closure reports.

React 19 TailwindCSS Supabase Tailwind

PizzaMania - MultiModuleRestaurant

PIZZAMANIA

Apr 2026 - Apr 2026 (0 months)

Architected comprehensive ecosystem with four modules: POS, Kitchen Display System, Inventory, and Customer Ordering for synchronized restaurant operations. Leveraged Firebase Realtime Database for data integrity across devices with instant updates. Designed KDS interface categorizing orders by status reducing ticket-to-table time. Engineered automated inventory with low-stock

React 19

SISTEM FOR A UNIVERSITY

Preparatoria Comitan

Mar 2026 - Mar 2026 (0 months)

Built an end-to-end academic LMS for student, subject, submission, and grading management, optimized to process ~600 daily requests. Integrated Google Gemini AI agents to detect AI-generated assignments and student-to-student plagiarism while keeping educational logic decoupled via Hexagonal Architecture and DDD.

Java Spring Boot Hexagonal Architecture Domain Driven Design AWS Docker Kubernetes PostgreSQL Next.js React

Distributed Systems Engineer (Orders)

Food Ordering System

Designed a fault-tolerant food ordering system that processes 10,000+ concurrent orders using the Saga pattern and event-driven microservices orchestration. Implemented CDC with Debezium for real-time synchronization, and improved resilience with Circuit Breaker and exponential backoff patterns.

Java Spring Boot Kafka PostgreSQL Redis Docker Kubernetes Debezium Prometheus Grafana

Full-Stack Engineer (FinTech)

NeoBank

Engineered a high-availability cloud-native banking backend combining a Spring Boot monolith (Auth/KYC) with serverless transaction microservices. Built an event-driven pipeline (SQS/DynamoDB) for parallel fraud detection, ledgering, and notifications in <400ms, including Rekognition-based automated KYC and security with Cognito JWT and HttpOnly cookies.

Java Spring Boot AWS Lambda SQS DynamoDB Cognito Rekognition PostgreSQL Python Event Driven Architecture

Full-Stack Engineer (Serverless Commerce)

CloudMart

Engineered a serverless, event-driven AWS e-commerce marketplace where Spring Boot orchestrates business logic and Lambda handles specialized tasks like shipping calculations. Deployed infrastructure via Terraform (VPC, RDS, API Gateway) and implemented resilient order lifecycle processing using SQS/SNS with Cognito-secured REST APIs.

Java Spring Boot AWS Lambda SQS SNS RDS DynamoDB Terraform Cognito S3

Full-Stack Engineer (Marketplace)

TradeFlow

Built an event-driven microservices marketplace using 10+ services with centralized SAGA orchestration over Kafka command bus. Implemented the Transactional Outbox and Event Sourcing patterns for zero data loss and auditability, and delivered sub-10ms AI fraud prevention via vector embeddings compiled to GraalVM Native.

Spring Boot Quarkus Kafka Kubernetes PostgreSQL MongoDB Redis Event Sourcing GraalVM Spring AI

Full-Stack Engineer (Sports Platform)

Soccer Tournament Platform

Built a full-stack platform for managing football leagues, including automated tournament management and real-time match statistics updates. Implemented JWT authentication with refresh tokens stored in HttpOnly cookies, RBAC security for admins/referees/teams, and rich UI with React 19 and Next.js 15 (including GSAP and Dark/Light mode).