I

iO

Blended agency delivering strategy, tech, content

Mid-Level / Senior Front-End Engineer

Frontend EngineeringUpdated on Nov 15
Full-timeRotterdam, NetherlandsNo salary listedIn-person

About the Job

Responsibilities

  • Build high-performance web applications using technologies such as React, Next.js, and TypeScript.
  • Define coding standards and architectural guidelines, and enforce them through automated tooling such as ESLint, Prettier, or SonarQube and through code reviews.
  • Translate requirements into implementable user stories and work items.
  • Monitor digital accessibility (WCAG), web performance (Core Web Vitals, code-splitting, and caching strategies), and security.
  • Work with and actively contribute to reusable component libraries or a cross-team design system.
  • Guide and coach junior and mid-level developers on the team.
  • Work directly with Product Owners and client-side stakeholders.
  • Proactively identify project bottlenecks and propose concrete solutions.
  • Actively optimize the development workflow using AI tooling and agentic engineering.

About the Company

iO

Blended agency delivering strategy, tech, content

iO is an end-to-end digital agency that combines strategy, technology, content, and marketing into one integrated service. It works by assembling customized teams with the right mix of skills for each project, covering brand and experience design, digital platform development, cloud and data integration, marketing campaigns, and content production. Revenue comes from traditional retainers, blended teams, and consulting, with a one-stop partner model that removes silos between departments. iO differentiates itself through a rapid buy-and-build expansion strategy, acquiring dozens of specialized agencies across the Benelux and Scandinavia (including Stendahls, Awave, and Triggerfish) to offer a broader, pan-European service. Its goal is to create Infinite Opportunities for clients by delivering seamless, end-to-end digital solutions that support digital transformation and growth for brands like Audi and AstraZeneca.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Turnhout, Belgium
Founded
2005

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