Frontend Developer (JavaScript, CSS, HTML, AWS)

We are looking for a
Frontend Developer
to join a
Conversion Rate Optimization (CRO)
team focused on implementing experiments, personalization initiatives, and user experience improvements directly on the website through frontend code injection platforms, without requiring backend or server access.

Responsibilities:
- Develop and implement website personalization initiatives and experiments using
JavaScript, CSS, and HTML
.
- Work with frontend code injection platforms (such as
Chameleon, Optimizely, VWO
, or similar) to deploy changes without modifying the backend.
- Collaborate with the
UX/UI Design
team to translate prototypes and wireframes into production-ready implementations.
- Partner with the
Analytics
team to define measurement parameters and interpret experiment results.
- Query and manipulate databases hosted on
AWS
to support specific personalization initiatives (user segmentation, targeted offers, etc.).
- Participate in backlog prioritization alongside the
Product Owner
, providing realistic effort estimates.




- Document implemented changes and provide ongoing support and maintenance for deployed solutions.
- Propose technical improvements that contribute to business objectives, going beyond simply executing requirements.

Requirements:

Technical Requirements
- JavaScript (Intermediate to Advanced):
DOM manipulation, event handling, and performance best practices.
- Advanced
CSS
skills, including responsive layouts, animations, and cross-browser compatibility.
- Semantic and accessible
HTML
.
- Experience working with
AWS
services, particularly storage and database solutions such as
S3, DynamoDB, or RDS
.
- Previous experience with frontend code injection or experimentation platforms (e.g.,
Chameleon, Optimizely, VWO, Google Optimize
, or similar) is
preferred but not required
.
- Basic understanding of
A/B testing methodologies
and web experimentation.
- Backend knowledge is a plus; however, this role

📌 Desarrollador/a Frontend (Colombia)
🏢 Multiplica
📍 Colombia