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Alex Ventura

Innovative Software Engineer skilled in full-stack development, cloud computing, and scalable solutions. Passionate about delivering high-quality code and enhancing user experiences.

About me

Developer.
Architect.
Creator.

Software Developer with 14+ years of experience building high-quality web applications for the fintech and gaming industries. Specializes in cloud architecture and backend systems, with solid experience delivering performant and accessible user interfaces end-to-end. Proven track record of establishing engineering standards, leading code reviews, and mentoring teams.

14+

Years of experience

5

Companies & clients

30%

Cloud cost reduction at Blaze

Tech stack

Skills & Technologies

Languages

GolangTypeScriptJavaScriptJava

Frontend

ReactJSNext.jsReact Native

Backend

Node.jsExpress.jsGraphQLgRPCSpring BootGin GonicGorilla MuxWebSockets

Cloud & Infra

AWS LambdaAPI GatewayS3SQSCloudFrontDynamoDBEKSCognitoDockerSST

Databases

PostgreSQLMySQLMongoDBRedisElasticSearchOracleDynamoDB

Messaging & CI/CD

KafkaRabbitMQEventBridgeGitHub ActionsGitLab CIDocker Compose

AI Tools

Apify/scrapingClaude CodeOpenAIOllamaNotebookLMTesseract OCRAWS Textract

Work Experience

14+ years building production systems across fintech, gaming, and e-commerce.

Blaze

Senior Fullstack Developer

Dec 2024 – Present

Remote – Brazil

NodeJS · ReactJS · React Native · TypeScript · AWS

  • ▸Integrated multiple third-party game providers, expanding the catalog and improving reliability of the integration layer.
  • ▸Optimized AWS cloud infrastructure by right-sizing resources, reducing cloud costs by ~30%.
  • ▸Led migration from a legacy Node.js codebase to TypeScript, adopting Drizzle ORM for type-safe database schema management.
NodeJSTypeScriptReactJSReact NativeAWSWebSocketsKYC
Kambda – Contractor for GoodLeap

Senior Fullstack Developer

Nov 2021 – Nov 2024

Remote – United States

Golang · TypeScript · ReactJS · NextJS · AWS Serverless

  • ▸Developed APIs and web applications using the AWS Serverless Framework for rapid development and seamless infrastructure configuration.
  • ▸Integrated with the Stripe payment platform, leveraging webhooks to process events and trigger automated email notifications.
  • ▸Performed data transformation and DynamoDB schema migration to transition from monolithic services to microservices using Domain-Driven Design.
GolangTypeScriptNextJSReactJSAWS ServerlessDynamoDBStripe
Deviget – Contractor for HookArt

Senior Software Developer

Oct 2020 – Oct 2021

Remote – United States

Golang · TypeScript · ReactJS · GraphQL · Web3

  • ▸Implemented real-time communication for virtual art exhibitions via video calls using GraphQL subscriptions in Golang integrated with Agora.
  • ▸Integrated OAuth 2.0 with Google authentication in the ReactJS client and Golang server.
  • ▸Incorporated WalletConnect for Web3 authentication, enabling Ethereum blockchain sign-ins.
GolangTypeScriptReactJSGraphQLRabbitMQRedisWeb3GCP
Mercadolibre

Software Developer

Aug 2018 – Sep 2020

Buenos Aires, Argentina

Golang · Java · ReactJS · AWS S3 · BigQuery

  • ▸Worked at Mercado Pago developing reconciliation reports for merchants and third-party integrators.
  • ▸Implemented streaming functionality in Java and Golang for file uploads and downloads from AWS S3.
  • ▸Developed a data API service to retrieve and deliver information from BigQuery.
GolangJavaReactJSAWS S3BigQueryStreamingSDK

Globant

Backend Software Developer

Aug 2017 – Jul 2018

Buenos Aires, Argentina

NodeJS · Java · SOA

  • ▸Automated user account creation with document validation flows.
  • ▸Extended SOA web services as internal REST API services in Java.
  • ▸Worked on a middleware client application for Athena's trading platform at JP Morgan Chase.
NodeJSJavaRESTSOAJP Morgan Chase

What I Do

Services I provide across the full software development lifecycle.

Full-Stack Development

End-to-end web application development using React, Next.js, Node.js, and Golang. From pixel-perfect UIs to performant backend APIs.

Cloud Architecture (AWS)

Designing and deploying scalable, cost-efficient cloud infrastructure on AWS using Lambda, API Gateway, DynamoDB, S3, SQS, and the Serverless Framework (SST).

Real-Time Systems

Building WebSocket and GraphQL subscription systems for live features: in-game events, notifications, collaborative tools, and real-time dashboards.

Microservices & APIs

Architecting and migrating monolithic applications to microservices following Domain-Driven Design principles, with REST, GraphQL, and gRPC interfaces.

Fintech & Payments Integration

Integrating payment platforms (Stripe, Mercado Pago), KYC identity verification, and compliance workflows for financial applications.

Engineering Leadership

Establishing coding standards, leading code reviews, and mentoring engineering teams. Experienced in agile environments with a focus on code quality and delivery.

Alex Ventura

Senior Fullstack Developer

Get in touch

Have a project in mind or want to connect? Send a message.

I usually reply within 24 hours.