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Senior Front-end Developer – Native JS/Vue.js – Europe (Remote)

Berlin
May 7, 2026
Full Time Permanent
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Job Description

Build High-Scale Web Experiences Used by Millions Worldwide

Insider One is hiring a Senior Front-End Developer to join its globally distributed engineering team. This role is ideal for an experienced developer who enjoys working with modern JavaScript frameworks, solving complex frontend challenges, and contributing to large-scale digital products powered by AI and data-driven technologies.
You will be part of a fast-moving product engineering culture that builds and maintains high-performance web applications used by global enterprise brands.

About Insider One

Insider One is a leading customer engagement and marketing technology platform that brings together personalization, data, and multi-channel orchestration in a single ecosystem. The platform helps businesses deliver seamless customer experiences across web, mobile, messaging, and email channels.
With a team of 1,500+ professionals across 30+ global offices, Insider One supports thousands of brands worldwide, including major international enterprises across retail, travel, automotive, and technology sectors.
The company operates at massive scale, processing billions of requests daily and leveraging large datasets to power AI-driven customer experiences.

Role Overview

As a Senior Front-End Developer, you will be responsible for designing, developing, and maintaining scalable web applications using modern JavaScript technologies. You will work closely with backend engineers, product managers, and UX teams to deliver seamless and high-quality digital experiences.
This role also involves technical leadership responsibilities, including guiding development practices, improving code quality, and contributing to architectural decisions.

Key Responsibilities

In this position, you will:

  • Develop scalable and high-performance front-end applications using JavaScript, TypeScript, and Vue.js
  • Participate in full software development lifecycle (design, development, testing, deployment, and maintenance)
  • Collaborate with cross-functional teams to deliver end-to-end web solutions
  • Integrate front-end applications with RESTful APIs and backend services
  • Conduct code reviews and ensure high coding standards
  • Write unit, integration, and end-to-end tests
  • Research and apply modern front-end technologies and best practices
  • Contribute to improving system performance, scalability, and maintainability
  • Participate in agile development processes and sprint planning

Required Skills & Experience

  • 3+ years of experience in front-end development
  • Strong proficiency in native JavaScript, Vue.js, and TypeScript
  • Experience with modern build tools (Webpack, Vite, Babel, Gulp, etc.)
  • Solid understanding of REST APIs, JSON, AJAX, and microservices architecture
  • Experience working in Agile teams
  • Familiarity with cloud environments (preferably AWS)
  • Strong knowledge of testing frameworks (unit, integration, E2E)
  • Experience with responsive design and cross-browser compatibility
  • Understanding of design patterns and clean code principles
  • Experience with Git version control systems
  • Ability to work in distributed and collaborative teams
  • Fluency in English (Turkish is a plus for internal collaboration)
  • Strong problem-solving mindset and attention to detail

Nice to Have

  • Experience with Laravel (basic exposure)
  • Knowledge of CI/CD pipelines and DevOps automation
  • Familiarity with monitoring tools (e.g., Sentry, Datadog)
  • Exposure to micro front-end architecture

Work Environment & Culture

Insider One promotes a highly collaborative, remote-friendly engineering culture focused on ownership, innovation, and continuous learning. Engineers work closely with global teams and contribute to products that operate at massive scale.
You will also be part of a culture that encourages experimentation, technical growth, and knowledge sharing across teams.

What’s in It for You

  • Fully remote work within Europe
  • Opportunity to work with global enterprise clients
  • Access to continuous learning platforms and internal training programs
  • Participation in employee share ownership programs (eligibility-based)
  • Professional development support (courses, certifications, and learning tools)
  • Strong culture of innovation, collaboration, and impact-driven work

Global team events, retreats, and community engagement programs

About the Company Vision

Insider One is not just building software—it is building a global ecosystem for customer engagement powered by AI, data, and automation. The company focuses on innovation at scale while fostering a socially responsible and inclusive workplace culture.

Helpful Government & Work Authorization Resources

Final Note

This role is suited for a developer who wants to work at scale, build impactful products, and grow within a global engineering organization that values innovation, ownership, and technical excellence.Build High-Scale Web Experiences Used by Millions Worldwide

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