Junior JavaScript Developer

Brazil Latin America Engineering JavaScript Software Development

Required skills

JavaScript (ES6+) / strong
HTML5 / strong
CSS3 / strong
SQL / good
Braze / good

Are you passionate about building clean, efficient, and reusable code?

We at Sigma Software are looking for a Junior JavaScript Developer to join our distributed team. This is a remote position with a focus on delivering high-quality CRM modules and components for a large-scale e-commerce platform.

Sigma Software is a global IT service provider delivering top-notch software development, consulting, and IT solutions for clients worldwide. We partner with innovative companies across various industries, helping them create cutting-edge products and services that reach millions of users.

Requirements

  • 1.5–2 years of commercial experience in JavaScript frontend development
  • Strong knowledge of core JavaScript (ES6+) fundamentals
  • Proficiency in HTML5 & CSS3
  • SQL knowledge
  • Basics of debugging and performance optimization
  • Readiness to learn and work with Braze (customer engagement platform)
  • Understanding of version control systems (Git)
  • Basic testing principles
  • Upper-Intermediate or higher English (written & spoken)
  • Strong communication skills — ability to explain solutions and ask clarifying questions

WILL BE A PLUS

  • Experience integrating with third-party tools or marketing/engagement platforms
  • Familiarity with analytics, tracking scripts, or customer engagement tools

Personal Profile

  • Proactive junior developer with strong problem-solving skills
  • Attention to detail and quality
  • Ability to work collaboratively across technical and marketing teams
  • Comfortable with multitasking and adapting to evolving priorities

Responsibilities

  • Develop, maintain, and optimize CRM drag-and-drop module libraries and evergreen components
  • Maintain documentation for marketing assets and components
  • Write, extend, and debug code within team tools and services
  • Ensure components align with brand guidelines and best practices
  • Collaborate with CRM Engineering Team to standardize tags, metadata, and personalization strategies
  • Train and support CRM marketers on platform capabilities and best practices
  • Manage multiple projects and prioritize tasks effectively
  • Troubleshoot and resolve issues with marketing solutions
  • Participate in on-call rotation for the team
  • Execute special projects as assigned

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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