Sigma Software

Discussion

Junior JavaScript Developer

Summary

Junior JavaScript Developer builds and maintains website integrations, email tracking, and data workflows using Vanilla JS, HTML, CSS, and REST APIs in a remote role based in Kyiv.

  • Configure and maintain website integrations, including event tracking, SPA fixes, cart tracking, and catalog integrations
  • Implement and support Email Service Provider integrations and synchronization workflows
  • Execute migration and replatforming activities with comprehensive validation and testing
  • Develop custom onsite JavaScript solutions for campaigns and interactive user flows
  • Build and support Airflow DAGs for recurring data processing workflows
  • Configure dynamic email content and SKU-level recommendation tracking
  • Analyze Customer requests and assess technical feasibility of solutions
  • Develop integrations with third-party marketing and email platforms
  • Investigate and resolve production issues and perform root cause analysis
  • Collaborate with account managers, QA engineers, and implementation specialists
  • Participate in technical consultations and onboarding alignment meetings
  • 2+ years of commercial experience with Vanilla JavaScript (ECMAScript 5+)
  • Strong knowledge of HTML and CSS
  • Hands-on experience with REST API integrations
  • Practical experience with jQuery
  • Experience with Chrome DevTools and browser debugging
  • Understanding of behavioral event tracking implementation
  • Knowledge of Email Service Provider integration workflows
  • Ability to develop custom JavaScript logic for onsite experiences
  • Strong analytical and problem-solving skills
  • Good communication skills with technical and non-technical stakeholders
  • Attention to detail and commitment to code quality
  • Experience working in cross-functional teams
  • Intermediate+ English level
  • Readiness to learn new tools and domain-specific technologies

WILL BE A PLUS

  • Experience with PHP
  • Familiarity with Apache Airflow
  • Experience using Postman
  • Understanding of Git workflows
  • Experience with AdTech or marketing technology platforms
  • Exposure to Customer-facing onboarding or integration projects

PERSONAL PROFILE

  • Proactive and solution-oriented mindset
  • Strong ownership and accountability
  • Ability to work independently and collaboratively
  • Detail-oriented approach to testing and troubleshooting
  • Comfortable working in a fast-paced environment
  • Strong communication and stakeholder management skills
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