What we offerVacanciesJavaScript Developer

JavaScript Developer (CRM Platform)

Middle Hybrid
Latin America, Brazil
Engineering, Software Development, JavaScript
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Required skills

JavaScript / expert
HTML5 & CSS3 / strong
SQL / good
Git / good
English / strong

Join Sigma Software and become part of a distributed team building a customer-focused CRM platform for a leading international E-commerce marketplace specializing in pet products. We are looking for a Middle JavaScript Developer who is passionate about creating scalable customer engagement solutions and improving digital experiences.

In this role, you will work remotely with a collaborative international team, contributing to reusable CRM modules, automation workflows, and personalization strategies. You will have the opportunity to expand your expertise beyond traditional Front-end development and gain hands-on experience with Braze, a leading customer engagement platform.

We at Sigma Software support professional growth, knowledge sharing, and long-term career development while working on impactful international projects.

Requirements

• 2+ years of commercial experience in JavaScript Front-end development
• Strong knowledge of core JavaScript ES6+ fundamentals
• Experience with HTML5 and CSS3
• Good understanding of SQL fundamentals
• Experience with debugging, troubleshooting, and performance optimization
• Understanding of version control systems, including Git
• Understanding of basic testing principles
• Upper-Intermediate or higher English level, both written and spoken
• Strong communication and collaboration skills
• Readiness to learn and work with Braze, a customer engagement platform that will be a key tool in daily work

WILL BE A PLUS

• Experience integrating third-party tools or marketing platforms
• Familiarity with analytics, tracking scripts, or customer engagement tools
• Experience working with CRM or marketing automation systems

Personal Profile

• Strong problem-solving skills
• Attention to detail and code quality
• Ability to work independently in a distributed team
• Proactive approach to learning new tools and technologies
• Good time management and prioritization skills

Responsibilities

• Develop, maintain, and optimize CRM drag-and-drop module libraries and reusable components
• Maintain documentation related to marketing assets and technical components
• Write, extend, and debug JavaScript code within team tools and services
• Ensure components align with brand guidelines and development best practices
• Collaborate with the CRM Engineering Team to standardize metadata, tags, and personalization strategies
• Train and support CRM marketers on platform capabilities and best practices
• Manage multiple tasks and priorities in a dynamic environment
• Troubleshoot and resolve issues related to marketing solutions
• Participate in the team’s on-call rotation
• Execute additional project-related tasks as required

Meet your team!

WHY US

  • Diversity of Domains & Businesses
  • Variety of technology
  • Health & Legal support
  • Active professional community
  • Continuous education and growing
  • Flexible schedule
  • Remote work
  • Outstanding offices (if you choose it)
  • Sports and community activities

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