Francisco Contreras

Experience

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  Tata Consultancy Services

  Jul 2015 - Aug 2016

  Programmer analyst

  ● Planned and implemented the core services and database for a system aimed to classify 200 million LATAM clients per year to identify VIP customers.● Consumed corporate SOAP web services to feed processes built on Java EE and orchestrated through JMS.● Implemented and optimized Oracle PL/SQL scripts to improve response time for the real-time classification process, leading to a reduction from 30ms to 4ms in some cases.● Provide correct and cost-effective solutions taking into consideration complex business use cases and procedures as the real-time identification and classification of VIP clients on each flight. Show less

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  XMS Chile

  Aug 2016 - Nov 2019

  Software Developer

  ● Designed and implemented a SAAS for car transferences taking into consideration Chilean regulations, clients identity based on their fingerprints, advanced document digital signing and integration with notaries. At least 2000 cars were transferred by AUDI and Peugeot Chilean divisions.● Promoted C# coding standards and conventions based on SonarQube code quality analysis as well as best practices provided by Microsoft.● Led the implementation and building of a software solution for Aconcagua Real State Company, this solution allowed them to manage and optimize the operation related to house delivery and warranty, decreasing by 30% the number of legal demands. ● Responsible for technical leadership and mentorship of a team composed of 3 professionals. ● Participated during the whole software development lifecycle from gathering business requirements, deployment in production environments and further application support. Show less

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  Empresas Lipigas

  Dec 2019 - May 2021

  ● Led the implementation of an ecosystem of services capable of supporting the organization to increase its online sales going from 10% to 50%. ● Reengineered the integration with the payment gateway provider which led to the reduction of cybersecurity incidents related to information exposure and unauthorized access preventing and identifying at least 9 critical incidents. ● Successfully migrated core legacy systems from Oracle 10g and .NET framework to GCP, PostgreSQL, Firebase, and .NET Core.● Built and designed a complete points reward software solution integrated with associated companies, sales, and marketing campaigns. Currently, this service manages the points for more than 10000 clients. Show less

  • Tech Lead

    Jan 2021 - May 2021

  • Full Stack Developer

    Dec 2019 - Jan 2021
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  Falabella

  Aug 2021 - Feb 2024

  Technical Lead

  ● Designed and implemented REST services used to process more than 400 million electronic billing documents per year using Google Cloud, GKE, Pub Sub, Redis, NestJS, Python and microservices best practices.● Designed and implemented an anti-corruption layer that exposed the company the capacity to manage and sign documents using Hyland OnBase and Adobe Sign through a set of REST services.● Ensured services responsiveness, and quality through the implementation of automated processes and testing tools using Grafana k6, Locust, and unit tests.● Reduced cloud infrastructure cost by 25% with the unification of low usage services, elimination of unused resources, and the migration from GCP memory store Redis streaming to GCP Pub-Sub.● Documented and communicated functional specifications, REST Apis design, and workflows composed of more than 76 microservices, 12 endpoints, and 5 database schemas.● Led the implementation of practices and patterns such as: structured logging, distributed tracing, circuit breaker, health check API, database per service and Saga. Show less

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  City of Winnipeg

  Jan 2024 - Apr 2024

  Programmer Analyst Intern (co-op)

  ● Execute test cases to identify issues related to security vulnerabilities, configuration, and third-party integrations such as Azure Active Directory.● Implement Python scripts to migrate and consolidate data such as Stops coordinates to a single source.● Improved test cases documentation including expected results, steps, user roles for more than 100 requirements.

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  Canada Life

  Aug 2024 - now

  Software Developer