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Oscar J.

Oscar J.

El Alto, Bolivia

Full Stack Developer

7 years of exp.

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Profile Summary

7 years of experience as a FullStack Developer fluent in English (C1) developing web API-integrated services, and responsive web applications. Using .NET, C#, Vue.Js, JavaScript, SQL databases (Oracle, MS SQL Server, MySQL), and Services (SOAP & REST) with a focus on solving problems and understanding the business logic for a better user experience. I'm Certified in Agile (SCRUM), Azure Fundamentals (AZ-900), and many courses in Platzi. I'm open to remote positions all over the world

Primary Skills

C# | 7 yrsJavaScript | 5 yrsSQL Server | 3 yrsRESTful APIs | 7 yrsSOAP | 3 yrsPL/SQL | 4 yrs.NET | 7 yrsScrum | 7 yrs

Culture Profile

In workplace, I am known for . . .
  • Proactivity, team work, attention to detail
  • Ability to see multiple possible scenarios
I thrive in environments . . .
  • where all the team has the ability to work together with communication
  • where all roles for scrum are really clear and requirements are clear enough
I struggle in environments . . .
  • where the team lacks communication
  • where there is low information about the product

Work Experience

Book4Time

Technical Team Lead
  • Architected Using Design Patterns: Utilized design patterns to structure the project architecture effectively, employing inheritance, interfaces, derived classes, enumerators, virtual methods, and abstract classes to create a robust and scalable application.
  • Integrated Efsta API for Transactions: Successfully implemented Efsta API calls to handle transactions, including sales, voids, and returns. Ensured compliance with fiscal data requirements and managed diverse tax types and calculations for Austria, Portugal, and Spain.
  • Actively participated in client meetings, effectively communicating project progress, addressing client concerns, and incorporating feedback into the development process to meet client expectations.
  • Managed and coordinated a team of six developers, ensuring smooth collaboration and efficient task allocation throughout the project lifecycle.
  • Acted as the primary point of contact for technical support, offering guidance and troubleshooting assistance to team members at any project stage.

Skills

C#SQL ServerRESTful APIsMicrosoft SQL Server.NET.NET FrameworkASP.NET Web FormAPI Integration

Industries

Healthcare ServicesHealth Sustainability and Wellness

Frontier Airlines

Sr DotNet Developer
  • Conducted detailed vulnerability assessments, resolving system vulnerabilities strategically.
  • Enhanced user experience by integrating real-time hotel discounts based on booking data, boosting customer satisfaction.
  • Led enhancements for the Flight Booking Web App, ensuring compliance with PCI-DSS standards for heightened security.
  • Proactively resolved bug reports swiftly through comprehensive research and cross-functional collaboration.
  • Nurtured strong rapport with USA-based clients and team, ensuring effective communication and seamless collaboration through consistent face-to-face interactions.

Skills

C#JavaScriptVue.jsTypeScriptASP.NET MVCjQueryAgile DevelopmentScrumTDDRazor

Industries

Retailing / DistributionTransportationTravel

WebPT

Software Engineer II
  • Restructured a legacy project using OOP principles and key methodologies like SOLID, DRY, and YAGNI, improving scalability and maintainability.
  • Enhanced the Credit Card Payments module for PCI-DSS compliance and a smooth transition to a new payment partner, boosting system security and efficiency.
  • Played a vital role in reducing bug reports for Billing Health software by implementing OOP concepts and design patterns, optimizing application performance.
  • Maintained effective collaboration between clients and team members in the USA through daily face-to-face communication, ensuring alignment with project goals and stakeholder expectations.

Skills

MySQLReactHTML5PHPjQueryDesign PatternsScrumCSSDockerPostmanProblem SolvingSAFe MethodologyDBeaver

Industries

Healthcare ServicesHealth Sustainability and Wellness

Banco Union

Electronic Media Programmer
  • Website
  • Sep, 2018 - Sep, 2021
  • Bolivia
  • Unicredito—Sep 2018 - Jan 2020 - Expedited Mobile App development for assessing bank credit eligibility from 2 months to an impressive 2 weeks. The app efficiently analyzes data for creditworthiness assessment. - Attained a substantial 90% development time reduction for developers via an adaptable d
  • Punto Union—Apr 2020 - Dec 2020 - Significantly slashed transaction costs from 1 USD to a mere 0.2 USD per transaction by spearheading the development of a user-friendly Mobile App. This innovative app simplified day-to-day transactions for users, seamlessly integrating Web API and WCF services with
  • UniMovil and UniNet—Jan 2021 - Sep 2021 - Reduced B2B synchronization time from 3 days to 10 minutes via a Windows app, optimizing web service consumption and synchronization processes.
  • Slashed transaction time in UniNet e-banking app from 1.5 hours to 5 minutes, enhancing user convenience for diverse payments across mobile and web platforms.

Skills

C#ASP.NETRESTful APIsSOAPOracle FormsOracle SQLVisual StudioVisual Studio CodePL/SQL.NET FrameworkASP.NET MVCEntity FrameworkWindows Communication Foundation (WCF)GitSVN (Subversion)Responsive DesignAPI TestingRazorToad for Oracle

Industries

Financial ServicesFintech

ANH Bolivia

Systems Developer Consultant
  • Website
  • Sep, 2016 - Jun, 2018
  • Bolivia
  • Enhanced vacation scheduling by 60% through active contribution to the Vacation Module, streamlining employee leave management.
  • Implemented an innovative HR procedure reallocating vacation days based on seniority, eliminating manual reassignment tasks.
  • Improved reporting functionality by implementing PDF Reports for Fixed Asset Delivery, enhancing documentation processes.
  • Increased productivity by 45% with a streamlined Flow Management system for Viatical Application Approvals, reducing processing time.

Skills

C#JavaScriptASP.NETOraclePL/SQL.NET FrameworkASP.NET Web FormjQueryScrumSVN (Subversion)Problem SolvingTFS

Industries

Government and MilitaryOil and Gas

Education

Bachelor's degree
  • Computer's Science
  • Universidad Mayor de San Andres, Bolivia
  • 2017

Certifications

AZ 900
  • Microsoft
  • 2022
Many LinkedIn Courses
  • LinkedIn
  • 2023

All Skills

  • Languages

    • C# | 7 yrs
    • JavaScript | 5 yrs
    • TypeScript | 1 yr
    • HTML5 | 2 yrs
    • PHP | 2 yrs

  • Frameworks

    • Vue.js | 1 yr
    • ASP.NET | 4 yrs
    • .NET | 7 yrs
    • .NET Framework | 7 yrs
    • ASP.NET MVC | 6 yrs
    • ASP.NET Web Form | 7 yrs
    • Entity Framework | 3 yrs
    • React | 2 yrs
    • Windows Communication Foundation (WCF) | 3 yrs
    • Razor | 5 yrs

  • Databases

    • SQL Server | 3 yrs
    • Microsoft SQL Server | 3 yrs
    • MySQL | 2 yrs
    • Oracle | 2 yrs
    • PL/SQL | 4 yrs

  • APIs

    • RESTful APIs | 7 yrs
    • SOAP | 3 yrs
    • API Integration | 5 yrs

  • Cloud

    • Oracle Forms | 3 yrs
    • Oracle SQL | 3 yrs
    • Visual Studio | 3 yrs
    • Visual Studio Code | 3 yrs

  • Libraries

    • jQuery | 4 yrs

  • Paradigms

    • Agile Development | 7 yrs
    • Design Patterns | 2 yrs
    • Scrum | 7 yrs
    • Responsive Design | 3 yrs
    • TDD | 4 yrs
    • SAFe Methodology | 2 yrs

  • Tools

    • CSS | 2 yrs
    • Docker | 2 yrs
    • Git | 3 yrs
    • Postman | 2 yrs
    • SVN (Subversion) | 4 yrs
    • API Testing | 3 yrs
    • TFS | 2 yrs
    • DBeaver | 2 yrs
    • Toad for Oracle | 3 yrs

  • Others

    • Problem Solving | 3 yrs