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Elena Ortega - senior software engineer

About me

Senior Software Engineer with over 11 years' experience working in international projects, driving the digital transformation of clients across diverse industries.

Highly experienced in frontend development, with experience as full-stack and mobile developer.

Experience working in agile methodology within multicultural teams, in the client side and remotely. Contributing in all the project phases: planning, design of the solution, frontend tasks development, release to production and maintenance.

Recognized as a proactive and competent person, who likes challenges and continuous learning.

  • 11+

    years of experience

  • 11

    corporate projects

  • 4

    side projects

Elena Ortega smiling happily

Contact

Work experience

Decathlon

08.2024 - Present

Ecommerce web application

Senior software engineer

2 years

Netherlands

  • - Contributed to improving the checkout experience for an e-commerce platform with ~20K daily cart users and a checkout conversion rate close to 40%, using A/B testing to validate UX improvements.
  • - Built a scalable and performant web application with a strong focus on developer experience, clean architecture, and a shared design system, implementing SLOs to ensure high availability.
  • - Developed a flexible, declarative form builder system with built-in validation, actions, and state management that supports dynamic forms.
  • - Optimised web pages for maximum speed and scalability, auditing web performance metrics to reduce load times and improve user experience.
  • - Actively participated in the Web Performance Guild, driving initiatives to improve Core Web Vitals across the platform.
  • - Maintained production health and system stability through proactive monitoring, using Datadog dashboards and alerts to catch issues before they impacted users across the ecommerce platform's 25+ countries.
  • - Mentored and supported engineers in their professional growth.
  • - Improved development productivity and code quality by using AI-assisted tools like GitHub Copilot and Gemini.
ReactJS
Svelte
Typescript
Tailwind CSS
Storybook
Jest
Playwright
Accessibility
Web Performance
Datadog
Google Cloud Platform
Github
Scrum
English

Gofore

01.2019 - 08.2024

Mobile application for a client in the Mobility sector

Lead software engineer

2 years and 10 months

Spain

  • - Developed an iOS and Android application using React Native, enabling customers to park, charge their vehicles, and access other mobility solutions.
  • - Served as the Lead Developer while also acting as the backup for the release manager, ensuring project deployment and coordination.
  • - Used GraphQL and the Apollo GraphQL library to move data efficiently between the client and microservices.
  • - Designed and implemented an architecture to customise the UI for third-party providers, such as Azure and payment system providers.
  • - Built automated test coverage with Jest and Playwright and monitored app health with Datadog, catching issues before they reached users.
  • - Worked closely with customer support teams to quickly fix technical issues.
ReactJS
React Native
Typescript
Storybook
GraphQL
Parcel
Jest
Datadog
Firebase
Playwright
Fastlane
Gitlab
Scrum
English

Web & Mobile application for a client in the Hazard Prevention sector

Software engineer

8 months

Spain

  • - Led the development of a hazard prevention platform, building a CMS that let managers create fire prevention documentation efficiently.
  • - Added features to integrate interactive floor plans and safety guidelines into the platform.
  • - Provided primary support during the project's final phase, maintaining the iOS and Android apps built with React Native.
ReactJS
React Native
Typescript
HTML
Scss
Firebase
NodeJS
PostgreSQL
Github
Scrum
Trello
English

Web application for a Client in the University sector

Software engineer

4 months

Spain

  • - Led the development of a hate speech detection dashboard designed to gather and analyse data from various social media platforms, including Twitter, Reddit, and others.
  • - Designed clear graphics in the dashboard to show trends and patterns in hate speech reports.
Angular
Typescript
HTML
Scss
Bootstrap
D3
Gitlab
Scrum
Jira
English

Web application for a client in the IoT sector

Software engineer

1 year and 2 months

Spain

  • - Worked for a leading measurement equipment manufacturer, building a cloud-based system that let customers remotely monitor readings and alarms across multiple sites.
  • - Managed the migration from AngularJS to Angular and developed new features.
AngularJS
Angular
Typescript
HTML
Scss
Bootstrap
Responsive Design
Maps API
i18n
Karma
RESTful API
Webpack
Gitlab
Scrum
Jira
English

Web application for a client in the University sector

Software engineer

3 months

Spain

  • - Led a project that integrated customer API endpoints into a visual map, showing store locations within shopping malls.
Figma
ReactJS
HTML
Scss
Material UI
Maps API
i18n
RESTful API
Babel
Webpack
Jest
Selenium
Gitlab
Scrum
Trello
English

Web application for R&D

Software engineer

5 months

Spain

  • - Designed the user interface to show relevant information for office use.
  • - Integrated the application with social media APIs.
Sketch
Marvel
ReactJS
HTML
Scss
Material UI
Bitbucket
Scrum
Trello
English

Accenture

06.2015 - 12.2018

Web application for a Client in the Insurance sector

Software engineer

11 months

Austria

  • - Led the digital transformation of one of the largest insurance groups in Austria, Central, and Eastern Europe.
  • - Led the software's definition, requirements, analysis, and implementation.
AngularJS
EC6
HTML
Scss
Bootstrap
Responsive Design
Handlebars
RESTful API
Scrum
Jira
Github
English

Web application for a Client in the Bank sector

Software engineer

9 months

Colombia + Remote work

  • - Took part in the digital transformation of a major financial group.
  • - Analysed customer requirements and improved form-based flows.
  • - Estimated tasks, modelled forms, and built frontend features.
Javascript
jQuery
HTML
CSS
Bootstrap
Responsive Design
RESTful API
Scrum
Jira
Github
English

Web application for a Client in the Bank sector

Software engineer

1 year

Mexico

  • - Built a credit card portal.
  • - Analysed customer requirements.
  • - Estimated tasks and built frontend features.
AngularJS
HTML
Scss
Bootstrap
Responsive Design
RESTful API
Scrum
Jira
Github
English

R&D Projects

Software engineer

11 months

Spain

  • - Developed new features and improvements for the company's products as part of the R&D department.
  • - Built an MV* architecture.
  • - Integrated social networks into a multichannel platform.
  • - Implemented a workflow engine in a Java application.
AngularJS
HTML
CSS
Mocha
Facebook API
Twitter API
Yammer API
Java
Oracle
Activiti
Alfresco
English

Recommendations

What can I say about Elena? Honestly, she's a true gem!

Elena is a developer with exemplary professionalism. She has an insatiable thirst for learning and has successfully tackled numerous complex projects (from integrating new authentication workflows to implementing Turnstile security).

Her work methodology is spot on: highly organized, thorough in her documentation, and incredibly reliable; she always does what she says and says what she does.

Proactive, driven, and always the first to volunteer for new challenges, Elena brings fantastic energy to the team. Working alongside her is an absolute pleasure!

Joffrey

Engineering Manager at Decathlon on 08.2026

1 / 5

Side projects

Personal Portfolio

2023

Designed and developed a website to showcase my portfolio, including a chatbot powered by OpenAI for natural conversations.

Next.js
Typescript
Tailwind CSS
Vercel
WCAG
OpenAI API

Architecture and interior design studio

2021

Designed and developed a professional architecture and interior design website. Built it so the owner can update content through the CMS, with the flexibility to run it as a headless system for easy integration with modern frameworks.

Next.js
Typescript
Tailwind CSS
GraphQL
Wordpress
Web hosting
WCAG

Art curator

2020

Designed and developed an art curator portfolio, built so the owner can update content through the CMS while using it as a headless system for easier development with modern frameworks.

Next.js
Typescript
Tailwind CSS
GraphQL
Wordpress
Web hosting
WCAG

Scout association

2019

Redesigned and developed the WordPress theme for an association. The owner manages content mainly to share the latest news and events for the organisation.

PHP
Wordpress
Bootstrap
Web hosting

Courses

Fundamentals of Frontend Architecture

August 2026

Frontend at scale

Google AI Professional

July 2026

Coursera

Google AI Essentials

June 2026

Coursera

Prompt Engineering for Developers

June 2026

DeepLearning AI

Developing Accessible Web Interfaces

November 2025

Warren Walter

Datadog

June 2025

Datadog

Google Cloud Fundamentals

March 2025

Nordcloud

Learn Performance

February 2025

web.dev

Introduction to Web Accessibility

January 2024

edX

GraphQL course

November 2021

Udemy Online Course

React Native course

October 2021

Udemy Online Course

NuxtJS course

September 2021

Mastering Nuxt Online Course

Vue and Vuex course

March 2020

Vue Mastery Online Course

Wordpress Development

December 2019

Udemy Online Course

From the idea to the product

April 2019

Workshop

Create an interactive prototype

April 2019

Workshop

Angular7+

January 2019

Udemy Online Course

ReactJS

December 2017

Udemy Online Course

Frontend Trainer

July 2017

Delivering trainings

Web development

June 2014

Online Course

Education

  • Master in IoT, Domotics and Smart Cities

    2016 - 2017

    Salamanca University (Spain)

  • Erasmus Program

    2013 - 2014

    Technische Universität Dresde (Germany)

  • Bachelor Degree in Industrial Engineering

    2010 - 2015

    Malaga University (Spain)

Languages

  • Spanish

    Native

  • English

    Professional

  • Portuguese

    Elementary

  • German, Dutch

    Beginner