Ervimar Aguilera

Sr Frontend Developer

1 recommendation

Salary / Daily rate

1 person recommend

Valencia, Spain

Freelance, open to permanent contract

Can come onsite

Skills

AngularTypescriptJavascript

Languages

Spanish (Native)English

Recommended by

Jorge Vallejo

MADCUP

Field Delegate

Recommended on 22 july 2025

About me

Intro

Senior Frontend Developer with 10+ years crafting scalable web applications and leading technical teams at Globant. Proven expertise in Angular, TypeScript, and mentoring, with achievements including 50% backlog reduction and 95% unit test coverage. Specialized in translating complex requirements into polished UIs while driving development best practices.

Links

Work experience

Globant

Sep 2015 - Dec 2024

9 years 4 months

Hybrid

Technical Leader for Disney Parks

Dec 2022 - Dec 2024

2 years 1 month

Hybrid

Develop UI using different technologies and frameworks, such as AngularJS, Angular, Backbone, limited experience working with NodeJS. Improve and expand project platforms using JavaScript to develop rich User Interfaces. Communicate with product managers and UX designers to translate project requirements and business objectives into polished user interfaces. Collaborate with teammates to deliver valuable features meeting business and customer needs. Collect, define and translate user requirements into project designs and implementation plans. Plan and develop RESTful web services to manipulate dynamic datasets. Conduct unit testing to deliver optimal browser functionality. Develop several projects for international customers. Mentor Junior developers about frontend frameworks and JavaScript best practices Sustained project close to completion, finished details and solved complex frontend and backend bugs; reducing the backlog by 50% in the first few weeks after assignment. Developed UT coverage for a client project until 95% of overall coverage. Career leader for 5 Jr developers, helping them grow their careers developing their own strengths and goals, constant communication with their technical leaders to find improvement points and keep track of their achievements. Direct workshops about Unit Testing and Angular for internal and client teams.

Frontend Leader for Disney Parks

Apr 2021 - Dec 2022

1 year 9 months

Hybrid

- Led development efforts to significantly increase unit testing coverage for multiple Angular applications. - Directed workshops and training sessions on unit testing and development best practices, ensuring team members were equipped with necessary skills and knowledge. - Assisted senior developers and client architects in resolving complex technical challenges and making architectural decisions. - Took charge of complex tasks, demonstrating strong problem-solving skills and technical expertise. - Initiated mentoring programs for junior developers within the company, providing guidance and support to foster their professional growth. - Led development efforts on the front-end side, implementing coding best practices for unit testing, TypeScript, and CSS to enhance code quality and maintainability. - Utilized Jira for project management, tracking tasks, and facilitating collaboration within the team. - Leveraged GitHub for version control, code reviews, and collaboration with distributed teams. - Implemented solutions using Polymer and TypeScript to enhance the functionality and performance of web applications. - Developed and executed unit tests using Jasmine to ensure the reliability and robustness of the codebase.

Frontend Developer

Apr 2017 - May 2021

4 years 2 months

On-site

- Led development efforts for web applications using AngularJS and Angular 2+. - Utilized a diverse tech stack including JavaScript vanilla and TypeScript to implement robust and scalable solutions. - Managed projects for both local and international clients, ensuring timely delivery and meeting client requirements. - Participated in technical discussions, providing insights and recommendations to improve application architecture and performance. - Contributed to decision-making processes on the technical side, weighing in on technology selection, framework upgrades, and code refactoring strategies. - Assisted in the creation of user stories from a technical perspective, ensuring alignment between business requirements and technical implementation. - Actively collaborated with cross-functional teams, including designers, product managers, and QA engineers, to deliver high-quality products. - Employed JIRA for project management, tracking tasks, and facilitating team collaboration. - Leveraged GitHub for version control, code reviews, and collaboration with distributed teams. - Continuously enhanced skills and knowledge in front-end development by staying updated with the latest trends and best practices.

Frontend Developer Jr. Advanced

Sep 2015 - May 2017

1 year 9 months

On-site

- Implemented user interface components for web applications using AngularJS. - Enhanced application functionality and ensured responsiveness across devices. - Translated design mockups into code, utilizing JavaScript, HTML, and CSS. - Collaborated with the development team to meet project requirements and deadlines. - Utilized Agile development processes, actively participating in sprint planning and retrospectives. - Managed project tasks and workflows using JIRA for project management. - Contributed to version control and code collaboration using GitHub. - Gained valuable experience in front-end development technologies and best practices. - Developed skills in teamwork and communication within a collaborative environment.

Norkut

Feb 2014 - Jul 2015

1 year 6 months

Software Development Consultant

Aug 2014 - Jul 2015

1 year

Revised, modularized and updated old code bases to modern development standards, reducing operating costs and improving functionality. Formulated code fixes and enhancements to be included in future code releases and patches. Collaborated on all stages of systems development lifecycle, from requirement gathering to production releases. Suggested multiple ideas in team meetings and delivered updates on deadlines, designs and enhancements. Designed intuitive graphical user interfaces using knowledge of serial communication and database design to improve user experience. Designed and Developed the previous Company’s web page. Audited, developed and led a reservation system for a mayor hotel chain located in Margarita Island, Venezuela. Led a development team of 5 members and discussed issues in order to provide resolution and apply best practices in the audit and development process. Designed, led and developed a Service Monitoring System for the company.

Information Technology Consultant

Feb 2014 - Jul 2014

6 months

Fixing of Apps Bugs. Development and Data Base Level Client IT Support. Updates Development and new modules development for existing products. Development tools: -ASP.NET -C# -Silverlight -Javascript -Twitter Bootstrap for Responsive Web Design

Systems Admin

Think Kitchen Venezuela

May 2013 - Jan 2014

9 months

Management of Stock System, Data Servers and Points of Sales at Company's Stores. Use of ICG Manager System and ICG Front Retail System. Detailed Sales Reporting with SQL Server 2008

Web Developer

Viajes Indigo Isla Margarita, c.a.

Jan 2013 - May 2013

5 months

Development of web tools for the company, such as web surveys and Online Hotel reservations, Using ASP.Net/C# and/or Visual Basic.Net. And SQL Server 2008 for Data Base Management

Web Developer-Jr

Sigo S.A.Web

Feb 2012 - Dec 2012

11 months

I was part of the UI Development Team, Designing and developing CSS and JQuery Metro Style Interfaces

Systems Intern

MALOKA TOURS

Mar 2011 - Jul 2011

5 months

Web Development Internship


Education

Universidad de Margarita

Bachelor of Engineering - BE

2006 - 2011

5 years 1 month

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