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Oscar Fabián Cristaldo Guzmán Email & Phone Number
Senior Software Engineer
at
itti
LinkedIn matched
✓ Verified July 2026
3 data sources
Profile completeness 100%
Who is Oscar Fabián Cristaldo Guzmán? Overview
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Quick answer
Oscar Fabián Cristaldo Guzmán is listed as Senior Software Engineer at itti, a with 1569 employees, based in Paraguay. AeroLeads shows a matched LinkedIn profile for Oscar Fabián Cristaldo Guzmán.
Oscar Fabián Cristaldo Guzmán previously worked as Desarrollador de software at Onehq and Software Developer at Onehq. Oscar Fabián Cristaldo Guzmán holds Elixir Programming from Learn-Elixir.Dev.
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itti
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Profile bio
About Oscar Fabián Cristaldo Guzmán
With years of experience in software development, I've honed a specialty in Elixir and full-stack technologies, turning complex data systems into robust, scalable solutions. My career is marked by significant contributions to the finance and fintech sectors, where I've led key projects in payment system integration and mobile application optimization.Driven by continuous innovation and agile development, I have a proven track record of enhancing user experiences and operational efficiency through advanced tech solutions. Beyond my technical role, I actively contribute to the Elixir community, sharing insights and collaborating on open-source projects. My previous roles have not only sharpened my technical skills but also cultivated leadership abilities and complex problem-solving capabilities.I am constantly seeking new opportunities to leverage my Elixir and full-stack development expertise to drive business success and technological innovation.
Listed skills include Java, Joomla, Oracle Sql Developer, Javascript, and 28 others.
Current workplace
Oscar Fabián Cristaldo Guzmán's current company
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Itti
10 roles
Oscar Fabián Cristaldo Guzmán work experience
A career timeline built from the work history available for this profile.
Desarrollador De Software
Software Developer
Specialized in transforming insurance customer data into OneHQ System formats, utilizing Elixir's robust capabilities including metaprogramming, GenStage, and GenServer, alongside Phoenix. Proficient in crafting scalable, event-driven backend architectures with GraphQL, and fortifying frontend interactions with React. Adept in employing Elixir for advanced features such as event bus implementations and rigorous testing protocols. Skilled in deploying applications with seamless OpenShift Kubernetes integration, demonstrating a comprehensive mastery of Elixir-centric development.
Software Developer
Fintech Innovación S.A.
Led the enhancement of the Wally iOS app with Swift and Firebase, honing user experience and reliability. Advanced Wally Empresas' full-stack capabilities using Java and Angular, refining backend and frontend systems.
Jan 2021 - Nov 2021
Software Developer
Engineered Java EE and Oracle-powered payment system integrations with external APIs to expand transaction capabilities and payment diversity. Streamlined business intelligence by automating report generation with iReport and JasperReports Server, enhancing decision-making with superior data visualization.
Jan 2019 - Dec 2020
Software Developer
Optimized Java 8 and Spring Boot-based RESTful services to boost system performance and interoperability, while leading Joomla-based website and plugin development, enhancing user engagement and streamlining administrative tasks. Innovated with Ionic Framework 2 for responsive front-end application development, ensuring a superior mobile experience. Successfully redesigned web banking interfaces with Materialize CSS and JavaScript, which contributed to a 30% uplift in customer satisfaction. Automated intricate Python-based business reporting processes, increasing both efficiency and precision. Ensured the reliability of queuing software through diligent Java maintenance, and managed financial software updates using Oracle 10g to uphold stringent compliance standards. Authored succinct VuePress technical documentation to expedite developer onboarding and knowledge dissemination.
Aug 2015 - Dec 2018
Information Technology Helpdesk
Delivered expert technical assistance and system support to over 700 employees, adeptly managing a spectrum of software and hardware issues through a robust internal tracking system. Authored and standardized internal procedures in line with quality management protocols, developed comprehensive training materials for staff onboarding, and conducted regular maintenance cycles for IT equipment. Additionally, I was responsible for troubleshooting and resolving complex network issues across LAN and WAN, while training and supervising new technical support staff.
Jan 2013 - Jul 2015
Diplomatic Pouch And Mailroom Clerk
Embassy Of The United States
Sorted diplomatic pouches in compliance with rigorous security protocols, which provided an opportunity to enhance my English communication skills through regular interaction with customers.
Nov 2012 - Dec 2012
Driver And Cleaner
Transported cleaning supplies and maintained resort cleanliness, a role which also served to refine my English language skills through practical application in a dynamic environment.
Dec 2011 - Apr 2012
Cooks Helper
Prepared a variety of salads and managed ingredient setup in a supervised, fun environment, further honing my English language skills in the culinary context.
Dec 2010 - Apr 2011
3 education records
Oscar Fabián Cristaldo Guzmán education
Elixir Programming
Bachelor Of Computer Science, Computer Systems Analysis
Universidad Nacional De Asuncion
Social Science
San Cristobal High School
FAQ
Frequently asked questions about Oscar Fabián Cristaldo Guzmán
Quick answers generated from the profile data available on this page.
What company does Oscar Fabián Cristaldo Guzmán work for?
Oscar Fabián Cristaldo Guzmán works for itti.
What is Oscar Fabián Cristaldo Guzmán's role at itti?
Oscar Fabián Cristaldo Guzmán is listed as Senior Software Engineer at itti.
Where is Oscar Fabián Cristaldo Guzmán based?
Oscar Fabián Cristaldo Guzmán is based in Paraguay while working with itti.
What companies has Oscar Fabián Cristaldo Guzmán worked for?
Oscar Fabián Cristaldo Guzmán has worked for Itti, Onehq, Fintech Innovación S.A., Pago Express, and Cooperativa Universitaria Ltda..
How can I contact Oscar Fabián Cristaldo Guzmán?
You can use AeroLeads to view verified contact signals for Oscar Fabián Cristaldo Guzmán at itti, including work email, phone, and LinkedIn data when available.
What schools did Oscar Fabián Cristaldo Guzmán attend?
Oscar Fabián Cristaldo Guzmán holds Elixir Programming from Learn-Elixir.Dev.
What skills is Oscar Fabián Cristaldo Guzmán known for?
Oscar Fabián Cristaldo Guzmán is listed with skills including Java, Joomla, Oracle Sql Developer, Javascript, Oracle Report Builder, Oracle Forms, Git, and Software Development.
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