Saúl Puentes

Software Engineer with 8+ years of experience.

I build web applications and platforms for e-commerce, logistics, and SaaS — with a highly professional design and attention to detail. I work on complex products with clear, efficient solutions tailored to each brand.

ReactNext.jsReact NativeChakraUIContentStackShopifyTypeScriptJavaScriptGraphQLHTML5 / CSS3Responsive DesignNode.jsNestJSPythonPayloadCommerceToolsWordPressREST APIsGraphQL APIsAWSIAMReactNext.jsReact NativeChakraUIContentStackShopifyTypeScriptJavaScriptGraphQLHTML5 / CSS3Responsive DesignNode.jsNestJSPythonPayloadCommerceToolsWordPressREST APIsGraphQL APIsAWSIAM

CognitoLambdaAPI GatewaySNSSESS3DynamoDBCloudFormationDockerVercelMongoDBPostgreSQLDynamoDBMySQLSQL/NoSQLAgile / ScrumCode ReviewsSOLID PrinciplesUnit TestingPerformance OptimizationCognitoLambdaAPI GatewaySNSSESS3DynamoDBCloudFormationDockerVercelMongoDBPostgreSQLDynamoDBMySQLSQL/NoSQLAgile / ScrumCode ReviewsSOLID PrinciplesUnit TestingPerformance Optimization

Services

Strategy & Architecture

I help translate business goals into a clear technical foundation: scope definition, architecture, workflows, and stack decisions for SaaS products, logistics platforms, and e-commerce experiences.

Full-Stack Development

I build scalable web applications with React, Next.js, NestJS, and Node.js, from dashboards and internal platforms to multilingual websites and mobile-ready experiences.

E-commerce, CMS & Automation

I design solutions that reduce manual work and improve operations: Shopify integrations, headless CMS workflows, process automation, and content structures that are easier to maintain.

Technical Consulting & Audit

I review existing products to uncover bottlenecks in performance, maintainability, and scalability, then propose concrete improvements focused on measurable outcomes and realistic execution.