Ezequiel Picatto

About

Senior Software Engineer (12+ years) specializing in designing and building scalable distributed systems using Java, TypeScript, and cloud-native technologies. Experienced with microservices architecture, event-driven systems, and workflow orchestration (Temporal). Builds backend platforms supporting complex business operations and large-scale data processing, with hands-on experience across SaaS, insurtech, healthcare IT, and payments. Strong focus on system design, reliability, and delivering high-impact solutions in cross-functional engineering teams.

Experience

• Senior Software Engineer (IC5) · BuildOps05-01-2023

  Design and development of distributed backend systems supporting asset management, service agreements, and operational workflows in a large-scale SaaS platform. ● Designed and implemented Java/Spring Boot microservices following Hexagonal Architecture and DDD principles to support service agreement lifecycle management and automated maintenance scheduling. ● Leveraged AI-assisted development tools (Claude, Cursor) in day-to-day workflows to accelerate implementation, testing, and code review. ● Designed workflow orchestration services using Temporal.io, enabling reliable execution and monitoring of long-running distributed operations. ● Contributed to a large-scale GraphQL backend using AWS Lambda and Kafka-based event publishing, implementing multi-tenant authorization and scalable API infrastructure. ● Developed frontend features using React and TypeScript in an Nx monorepo with Module Federation micro-frontends, leveraging MUI and Apollo Client. ● Contributed to the development of an AI-powered engineering orchestration platform using Claude-based tooling, implementing multi-agent workflows to automate the software development lifecycle. Stack: Node.js · TypeScript · Java · Spring Framework · Claude · NestJS · React · MySQL · GraphQL · Kafka · AWS · Temporal · Datadog

• Senior Software Engineer · Health IQ02-01-2021 – 05-31-2023

  Developed backend platforms supporting insurance products, data pipelines, and integrations with external systems. ● Designed and implemented scalable backend services using Node.js/TypeScript, Python, and Kotlin. ● Built and maintained AWS-based infrastructure using Terraform to support application deployment and data pipelines. ● Implemented integrations with external systems including Salesforce, enabling synchronization of policy and customer data. ● Designed and implemented data streaming pipelines from PostgreSQL to Amazon Redshift using Debezium and Kafka to support near real-time analytics and reporting. Stack: Node.js · TypeScript · AWS · Terraform · PostgreSQL · Amazon Redshift · Debezium · Salesforce · Kotlin · Python · React.js · CircleCI · GraphQL · Apache Kafka

• Senior Software Engineer · Nexton09-01-2020 – 02-28-2021

  Worked across multiple client projects delivering backend systems and cloud infrastructure. ● Developed backend services across multiple stacks including Node.js/TypeScript, Java/Spring, and Python/Django. ● Designed and implemented AWS infrastructure including EC2, RDS, CloudFront, and Elastic Beanstalk. ● Built CI/CD pipelines using CircleCI and AWS CodePipeline to automate build, testing, and deployment workflows. Stack: Node.js · TypeScript · Java · Spring Framework · Python · Django · AWS · Docker · Auth0 · CircleCI

• Senior Software Engineer · Velocity Partners/Endava03-01-2017 – 09-30-2020

  Developed backend services and integrations for large enterprise healthcare applications. ● Designed and implemented Java/Spring microservices exposing REST APIs and WebSocket endpoints. ● Integrated backend services with ElasticSearch to enable search and analytics capabilities. ● Led the migration from Apache ActiveMQ to Apache Kafka, including architecture design, implementation, and rollout across services. ● Developed frontend features using AngularJS for internal healthcare management systems. Stack: Java · Spring Framework · Maven · AngularJS · Apache Kafka · ElasticSearch · Oracle · Jenkins · Cucumber · Docker

• Senior Engineer of Payment Methods Solutions · Nación Servicios09-01-2014 – 01-31-2017

  Worked on payment platforms and card management systems for debit and credit card operations. ● Developed web services for payment processing supporting debit and credit card operations. ● Designed and implemented an internal quality control system for the card personalization process. ● Built systems supporting credit and debit card lifecycle management. Stack: Java · Spring Framework · PHP · JavaScript · OracleDB · MySQL · WSO2 ESB

• Technical Leader · Sytion07-01-2012 – 08-31-2014

  Led development of custom software solutions and industrial automation systems. ● Developed custom business management systems for operational workflows. ● Designed and implemented SCADA applications and industrial automation systems using Siemens PLCs. ● Built hardware-based data logging devices using Arduino for industrial monitoring. Stack: Java · PHP · JavaScript · MySQL · Arduino · Siemens WinCC · Siemens S7 SIMATIC · Siemens TIA Portal

Education

• Universidad Tecnológica NacionalMaster's in Software Engineering, Software Engineering
• Universidad Tecnológica NacionalBS in Software Engineering, Software Engineering

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