Victor Esteban Arce Cubillo

Senior Software Engineer

Senior Software Engineer with 11+ years of experience designing enterprise distributed systems across insurance, e-commerce, and SaaS domains. Deep expertise in Java 17 / Spring Boot 2.x / 3.x / 4.x, TypeScript / Node.js serverless, and cloud-native architectures on AWS and Kubernetes. Built and owned 50+ AWS Lambda microservices at doTERRA and 15+ Spring Boot 2.x / 3.x / 4.x applications at WCF Insurance. Applies DDD, CQRS, and event-driven patterns alongside modern AI tooling (Claude Code MCP, GitHub Copilot) to accelerate delivery and raise code quality.

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Senior Software Engineer

Java & Backend

Spring Boot 2.x / 3.x / 4.x — Building enterprise REST APIs, reactive services (WebFlux), and complex multi-module applications.

Spring Batch — Designing ETL pipelines with multi-datasource reads, BeanIO/ACORD XML parsing, and JXLS/POI reporting.

Spring Integration — Secure SFTP/FTP file exchange flows with PGP encryption and Azure Key Vault secret management.

Node.js Serverless — Built 50+ AWS Lambda functions in TypeScript for a global e-commerce platform.

SAP Hybris Commerce — Custom extensions, backoffice, SmartEdit, and Solr product search for global B2B e-commerce.

RabbitMQ (AMQP) — Asynchronous event propagation between microservices using AMQP messaging patterns.

Security — PGP/Bouncy Castle, Jasypt, OIDC/OAuth 2.0, Gigya (SAP CDC), AWS Cognito, Azure Key Vault.

Cloud & Architecture

AWS — Serverless — Lambda, API Gateway, DynamoDB, SQS, SNS, SES, KMS, Cognito, CloudWatch, OpenSearch.

AWS CDK v2 — Infrastructure-as-code for full environments: VPC, Cognito, Batch, CodeArtifact — zero manual console changes.

Kubernetes / k3s — CronJobs, Secrets, ConfigMaps, PVCs on enterprise clusters and personal k3s on VPS.

Docker & Helm — Multi-stage Docker builds, Helm chart releases, Traefik ingress, cert-manager TLS.

Domain-Driven Design — Bounded contexts, aggregate roots, and ubiquitous language applied across microservices.

CQRS & Event-Driven — Read/write model separation; asynchronous event pipelines via SQS, RabbitMQ, and SNS.

Observability — Elastic APM + ELK Stack for distributed tracing, log aggregation, and alerting.

CI/CD — GitLab CI/CD with Docker registry push, semantic-release, Bamboo, SonarQube, JaCoCo.

Fullstack & Databases

Next.js 15 / React 19 — App Router, server actions, streaming, and bilingual i18n with next-intl.

TypeScript (ES2022+) — Strong typing across Node.js microservices, AWS CDK infrastructure, and React frontends.

PostgreSQL — Primary OLTP store at WCF: Flyway migrations, HikariCP pooling, complex query design.

DynamoDB — Single-table design patterns for serverless Lambda microservices at doTERRA.

MongoDB — Document store for SaaS invoice application with Next.js and NextAuth.js.

SQL Server & Oracle — Multi-datasource ETL batch jobs and legacy enterprise integrations.

Testing — JUnit 5, Mockito, TestContainers, Database Rider, Spring Batch Test, Jest, ts-jest.

AI Tooling — Claude Code (MCP, multi-agent orchestration), GitHub Copilot, JetBrains Junie, Gemini API.