Liev Vladimir Salas Carrillo

Liev Vladimir Salas Carrillo  new_releases

About

Detail

Software Engineer
San José, San José Province, Costa Rica
Contact Liev regarding: 
Flexible work
Starting at USD30/hour
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Internships
Open to unpaid internships

Timeline

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Résumé

Jobs verified_user 13% verified
  • IDS Comercial
    Solution Architect
    IDS Comercial
    Feb 2025 - Sep 2025 (8 months)
    Feb 2025 - Sep 2025 Designed and maintained enterprise platform architecture across multiple countries, reducing critical production incidents by 25% through improved observability and deployment practices Architected data integration pipelines between third-party SaaS platforms and Walmart's centralized data lake using Azure Service Bus, REST APIs, and OAuth 2.0 security standards Implemented secure data handling workflows for sensitive operational data, enforcing encryption, access controls, and compliance with corporate data governance policies Built automated CI/CD documentation and monitoring pipelines using Azure DevOps, cutting developer onboarding time by 30% Collaborated closely with data product, QA, and DevOps teams across
  • GreenSlate
    Senior Software Engineer verified_user Verified experience
    GreenSlate
    May 2021 - Feb 2025 (3 years 10 months)
    Designed and maintained scalable .NET microservices supporting high-volume financial data processing for entertainment industry payroll and production accounting platforms Built and optimized SQL Server data transformation pipelines processing complex payroll calculations, reducing resource consumption by 20% and eliminating peak-period timeout errors Developed and maintained REST API integrations with third-party data providers using OAuth 2.0, JSON payload handling, and secure data transmission patterns Drove TDD adoption and automated test coverage significantly increasing release confidence across a platform handling sensitive financial data Collaborated with QA, product, and DevOps teams in bi-weekly Agile/Scrum cycles, working cro
  • F
    Software Developer
    FORTEM SERVICES
    Feb 2020 - May 2021 (1 year 4 months)
    Led full migration of a legacy Delphi monolith to containerized C# microservices on Docker, improving deployment frequency from monthly to weekly Resolved critical data integrity issues in high-frequency financial transaction modules through deep-dive gap analysis and ETL process redesign Built an asynchronous real-time pricing engine contributing to a 20% increase in sales conversion through improved data processing performance
  • G
    Technical Lead
    GO TECHNOLOGIES GROUP
    Feb 2019 - Jan 2020 (1 year)
    Responsible for the design and implementation of a financial platform for a fintech company, serving as the team lead and architect in the development department. The solution is a hybrid mobile and web platform for client and account management, integrated with the national banking system and various payment services. To achieve this, I designed a microservices-based architecture, leveraging relational databases for account management and NoSQL databases for internal app operations. • Developed and implemented security protocols based on OAuth 2.0, JWT, and AES-256 encryption, ensuring compliance with PCI-DSS regulations and reducing fraud risks around 60%. • Led a team of 5 engineers, applying Agile/Scrum methodologies, which resulted i
  • AN Global
    Software Quality Analyst
    AN Global
    Aug 2018 - Feb 2019 (7 months)
    • Developed a methodology for the manual execution of tests, including test planning, scenario design, and effort estimation, separating flows from the initial test to achieve more precise error identification, facilitating its resolution. • Developed and deployed a custom test automation tool, reducing testing time and accelerating deployment cycles.
  • F
    Senior Software Developer and Team Leader
    FLOWORK ENGINEERS
    Sep 2015 - Jul 2018 (2 years 11 months)
    - Responsible for leading the 4patientCare account, ensuring the successful delivery of software solutions and maintaining high standards of quality. - Guided and mentored other programmers, overseeing their tasks and providing support for technical challenges, which fostered a collaborative and efficient team environment. - Actively engaged in the design of new functionalities for the 4patientCare account, demonstrating a commitment to enhancing the user experience and meeting client needs. - Leveraged extensive knowledge in automation testing tools and software development practices to improve project outcomes, ensuring robust and scalable solutions. - Utilized .NET Core, .NET, REST API, C#, .NET Framework, Microsoft SQL Server, JavaS
  • Crux Consultores
    Full Stack Programmer
    Crux Consultores
    Dec 2012 - Sep 2015 (2 years 10 months)
    Designed and implemented administrative functions for the Insurance Superintendency (SUGESE) and the Central Bank of Costa Rica (BCCR), ensuring compliance with institutional and financial regulations. In addition to my core responsibilities, I conducted mentoring sessions where I explained the use of automation testing tools to streamline the testing process for the application, enhancing overall efficiency and quality assurance.
  • F
    Jr./Mid Full Stack Programmer
    FLOWORK ENGINEERS
    Aug 2010 - Dec 2012 (2 years 5 months)
Education verified_user 0% verified
  • A
    AI Literacy Professional Certification
    Mar 2026
  • A
    AI Project Manager Foundation Profesional Certification
    Jan 2026
  • A
    AI Risk Manager Profesional Certification
    Nov 2025
  • Tecnológico de Costa Rica
    Business Innovation with AI
    Tecnológico de Costa Rica
    Sep 2025 - Mar 2026 (7 months)
  • G
    Generative AI Profesional Certification
    Sep 2025
  • S
    Getting Started with Specflow
    SpecFlow
    Jan 2024
  • C
    Confluence Fundamentals Badge
    Jan 2023
  • J
    Jira Fundamentals Badge
    Jan 2023
  • Tecnológico de Costa Rica
    Bachelor's Degree in
    Tecnológico de Costa Rica
    Feb 2005 - Jan 2012 (7 years)
Projects (professional or personal) verified_user 0% verified
  • C
    Call AI
    Sep 2025 - Jan 2026 (5 months)