About this role
Middle JavaScript Developer
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
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2+ years of commercial experience in JavaScript Front-end development
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Strong knowledge of core JavaScript ES6+ fundamentals
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Experience with HTML5 and CSS3
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Good understanding of SQL fundamentals
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Experience with debugging, troubleshooting, and performance optimization
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Understanding of version control systems, including Git
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Understanding of basic testing principles
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Upper-Intermediate or higher English level, both written and spoken
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Strong communication and collaboration skills
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Readiness to learn and work with Braze, a customer engagement platform that will be a key tool in daily work
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WILL BE A PLUS
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Experience integrating third-party tools or marketing platforms
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Familiarity with analytics, tracking scripts, or customer engagement tools
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Experience working with CRM or marketing automation systems
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Personal Profile
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Strong problem-solving skills
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Attention to detail and code quality
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Ability to work independently in a distributed team
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Proactive approach to learning new tools and technologies
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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