Simera Professional Key (SPK)

Efrain2ss M

Bolivia

Sr Frontend Developer

$ 4,000/month

10+ yrs exp

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Skills

  • AngularJS
  • Bootstrap
  • CSS
  • CSS3
  • Front-End Development
  • Git
  • Google Ads
  • Google Apps
  • HTML
  • HTML5
  • JavaScript
  • jQuery
  • PHP
  • PostgreSQL
  • React
  • Typescript
  • JavaScript ES6
  • Angular
  • CodeIgniter
  • Content Developer
  • Front End Developer
  • Google AdMob
  • Google Adwords
  • GTM
  • ReactJS
  • Shopify
  • Frontend Development
  • YouTube Analytics
  • CSS 3
  • Nuxt.js
  • Tracking
  • Nest.js
  • Next.js
  • Next js
  • Google Add
  • Angular+17
  • Gogle Ads
  • GA4
  • Basic CRM
  • Remote Work Experience
  • adobe analytics
  • Frontend developer
  • Type Script
  • Boostrap
  • Typescrtipt
  • Adobe Analytics
  • AEP
  • AEM Cloud
  • Adobe Launch

Efrain2ss M

Bolivia

Sr Frontend Developer

$ 4,000 /month

10+ yrs exp

holaddd222222222222222dddddddddsssss

Skills

  • AngularJS
  • Bootstrap
  • CSS
  • CSS3
  • Front-End Development
  • Git
  • Google Ads
  • Google Apps
  • HTML
  • HTML5
  • JavaScript
  • jQuery
  • PHP
  • PostgreSQL
  • React
  • Typescript
  • JavaScript ES6
  • Angular
  • CodeIgniter
  • Content Developer
  • Front End Developer
  • Google AdMob
  • Google Adwords
  • GTM
  • ReactJS
  • Shopify
  • Frontend Development
  • YouTube Analytics
  • CSS 3
  • Nuxt.js
  • Tracking
  • Nest.js
  • Next.js
  • Next js
  • Google Add
  • Angular+17
  • Gogle Ads
  • GA4
  • Basic CRM
  • Remote Work Experience
  • adobe analytics
  • Frontend developer
  • Type Script
  • Boostrap
  • Typescrtipt
  • Adobe Analytics
  • AEP
  • AEM Cloud
  • Adobe Launch

Sr Frontend Developer

Fanaply / Guidesly / MLB
June 2025 - present

Implemented front-end tracking across React applications including page loads, clicks, API success events, and conversion flows. Instrumented data layer events based on API responses and mapped API response fields to event payloads for analytics and personalization systems. Validated tracking using browser developer tools and debuggers.

Sr Frontend Developer

Robin Fanaply / Guidesly / MLB
June 2025 - present

Implemented front-end tracking across React applications, instrumented data layer events based on API responses, mapped API response fields to event payloads, and validated tracking implementations.

Sr Frontend Developer

WeDevelop (Client: Fusionary)
October 2024 - March 2025

Implemented event tracking and data layer instrumentation across multiple client projects using GTM and GA4. Integrated marketing pixels and conversion tracking for e-commerce clients. Validated tracking implementations using browser developer tools and tag management debugging.

Sr Frontend Developer

WeDevelop
October 2024 - March 2025

Implemented event tracking and data layer instrumentation across multiple client projects, integrated marketing pixels, and validated tracking implementations for e-commerce clients.

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testedit
September 2024 - September 2024

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Fullstack Developer1

Conexia1
May 2024 - September 2024

Healthtech company focused on streamlining the invoice management process between insurers and healthcare service providers. It enables bulk uploads and invoice management for providers, as well as medical/administrative auditing and invoice settlement for insurers.1

Sr Frontend Developer

SweatWorks (Client: Pvolve)
June 2023 - February 2024

Implemented GA4 and GTM tracking for custom events, conversions, and marketing pixels. Instrumented data layer events based on API success responses and mapped API fields to event payloads. Interpreted front-end API calls to determine success or failure states for conditional tracking.

Sr Frontend Developer

SweatWorks
June 2023 - February 2024

Implemented GA4 and GTM tracking, instrumented data layer events based on API success responses, and mapped API response fields to event payloads for analytics and personalization.

Fullstack Developer

Tutenlabs
March 2022 - March 2024

Company dedicated to automating business processes, focused on service delivery through field service management software to handle services, scheduling, suppliers, payments, clients, availability, and tracking.

Application Analyst

Intelix Synergy
January 2022 - March 2022

Implemented flat file validation rules using Java, Spring Boot, and AWS S3 to ensure the correct structure and consistency of information received from bulk invoice uploads, achieving 100% data reliability in the system. Integrated the invoice management application’s frontend, developed in Angular 14, with the BFF (Backend for Frontend) using GraphQL, enabling communication with the backend to retrieve, create, edit, or delete records. Developed, modified, and enhanced multiple features of the invoice management application at the frontend level using Angular 14. Implemented feature flags, modified components, and created custom directives. Worked under a SCRUM methodology, collaborating with cross-functional teams. Conducted peer PR reviews, code reviews of delivered user stories, and participated in Sprint refinement and planning processes. Developed unit and integration tests using Java and JavaScript to maintain and increase project coverage. Utilized SonarQube to track metrics, prevent code smells, and avoid duplicate lines of code. Designed and implemented high-performance REST APIs using Spring Boot with Java and Docker, following a microservices architecture for a field service management application. Also achieved an 80% reduction in response times for critical flow endpoints of the application through backend optimizations and SQL query optimizations to PostgreSQL databases. Implemented an asynchronous communication flow between microservices with Apache Kafka in a field service management application, resulting in a 30% improvement in system efficiency and a 20% increase in response capacity. Collaborated with the UI/UX team to design new interface features for a field service management application and implemented these features using React, JavaScript, TypeScript, HTML, and CSS. Managed and integrated databases with PostgreSQL and MySQL, conducting data migrations and regularizations while preserving data integrity and functionality with 100% effectiveness. Wrote unit and integration tests using Junit, Mockito, and Jest. Also conducted code reviews and revisions of Pull Requests from other developers, with the aim of ensuring the reliability and functionality of the code and guaranteeing the use of best practices. Ensured the operational continuity of the cash register system of a multinational company (operations in Venezuela, Costa Rica, El Salvador, and Guatemala) through which thousands of transactions are processed daily (sales, returns, exchanges, and credits). I used Java to maintain and improve the system, ensuring uninterrupted service at all company locations. Standardized support processes at the database level for the cash register application for operations in Venezuela, Costa Rica, El Salvador, and Guatemala. This was achieved through the development of management scripts for MySQL databases. This reduced support management times by 50%, allowing for greater efficiency in daily operations and better customer service at all company locations. Updated and modified a web app for cash register transactions and report generation using React and Node.

Sr Frontend Developer — Tracking & Analytics

Siono (Client: Sugarboo & Co)
August 2020 - February 2022

Defined and implemented data layers and event instrumentation for e-commerce. Configured Adobe Analytics tracking (eVars, props, events) and managed Adobe Launch environments. Integrated frontend with AEP, developed reusable AEM Cloud-compatible components, and implemented GA4/GTM tracking and marketing pixels.

Sr Frontend Developer — Tracking & Analytics

Siono
August 2020 - February 2022

Defined and implemented data layers, configured Adobe Analytics, managed Adobe Launch environments, integrated frontend with AEP, developed reusable AEM Cloud-compatible components, and implemented GTM-based tracking.

Frontend Developer

Visual Medica
January 2020 - April 2020

Developed and maintained web platform features using CodeIgniter, PHP, JavaScript, jQuery, HTML5, CSS3, and Bootstrap in a Kanban environment.

Frontend Developer

Aden Business School
August 2018 - December 2019

Developed Angular frontend for a university web platform, implemented features using TypeScript and SQL Server, and worked in an Agile/Scrum environment.

Job title

Official Company Name
September 2007 - August 2010

- Advised client’s Digital Media division on £3M international expansion, coordinating a team of 8 analysts during initial research phase - Structured and negotiated equipment deal financing including credit purchases, rentals, and 31 lease contracts worth $745k - Please use 3 -4 bullets maximum to describe your job function & responsibilities - Concentrate on your achievements, and what you have distinctly contributed to in each role, using quantitative examples where possible

Job title

Official Company Name
September 2007 - August 2010

Advised client’s Digital Media division on £3M international expansion, coordinating a team of 8 analysts during initial research phase. Structured and negotiated equipment deal financing including credit purchases, rentals, and 31 lease contracts worth $745k.

Job title

Official Company Name
September 2007 - August 2010

Job title

Official Company Name
June 2005 - September 2007

- Make sure your work experience comes to life, consider what someone reading your CV would be most interested in - Avoid any negativity or short comings on your CV that may raise the wrong questions - Try to avoid having your CV read like a job description

Job title

Official Company Name
June 2005 - September 2007

Executed key projects and contributed to team objectives through strategic initiatives and process improvements.

Job title

Official Company Name
June 2005 - September 2007

Job title

Official Company Name
March 2004 - June 2005

- Try to ensure your CV is easy to scan, start bullet points with relevant action verbs - You can also include significant relevant voluntary experience in your work experience if it is applicable - Try to avoid industry jargon that may not be understood

Job title

Official Company Name
March 2004 - June 2005

Managed daily operations and collaborated with cross-functional teams to meet performance targets.

Job title

Official Company Name
March 2004 - June 2005

Job title

Official Company Name
August 2003 - March 2004

- Use past tense for roles you have completed - Please set dates using the abbreviated month and two digits for the year, you must include months as well as years - Make sure your CV is an accurate reflection of you and what you want to highlight about your experience - Stick to facts you can easily discuss. Avoid subjective comments

August 2003 - March 2004

Job title

Official Company Name
August 2003 - March 2004

Assisted in administrative support and project coordination within the department.

Smart Scores

Communication
0
Role Fit
95
Adaptability
0
Problem-solving
0

Smart Skills

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