Junior JavaScript Developer

Sigma Software Group

Junior JavaScript Developer joining AdTech project focusing on behavioral analytics and marketing automation. Involves integration development, troubleshooting, and collaboration with international teams.

Posted 7/24/2026full-timeRemote • 🇺🇦 UkraineJuniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Proficient in Vanilla JavaScript, HTML, and CSS for developing custom solutions and integrations. Experienced in REST API integrations, event tracking, and collaborating with cross-functional teams to enhance user experiences.

Highest-signal resume keywords

Vanilla JavaScript (ECMAScript 5+)REST API IntegrationsEmail Service Provider Integration WorkflowsAnalytical and Problem-Solving SkillsCross-Functional Team Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Vanilla JavaScriptHTMLCSSREST API IntegrationsJQueryChrome DevToolsEvent Tracking ImplementationCustom JavaScript LogicData Processing WorkflowsRoot Cause Analysis

Soft Skills

Analytical SkillsProblem-Solving SkillsCommunication SkillsAttention to DetailCommitment to Code Quality

Tools & Technologies

Email Service ProviderAirflowBrowser Debugging

Industry Keywords

Website IntegrationsEvent TrackingMigration ActivitiesOnsite ExperiencesTechnical Feasibility

Tech Stack

Tools & technologies

AirflowJavaScriptjQuery

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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

Benefits

Comp & perks

supportive engineering culture
opportunities for professional growth