Senior Frontend Lead — AI-Powered Web Apps (Amsterdam)

Gazelle Global; Amsterdam; On-site; EUR 70,000 - 110,000; Full time

Job summary

Gazelle Global is seeking a Senior Front-end Developer for a major client in Amsterdam. The role involves shaping an AI-powered FE development flow within a small squad, while building and maintaining core web libraries and components such as a custom router and a mock server kit.

The position is a 36-40 hour/week engagement for 2-3 years, operating in an agile environment with emphasis on TDD/BDD and frontend tooling mastery. Strong communication with customers is essential.

Qualifications

• 10+ years’ experience in development/software engineering.
• Experience with SPA and SSR, preferably NextJS.
• Familiarity with WebComponents meta-specification.
• Proficient in frontend build tooling (Webpack/Rollup).
• Experience with CI/CD, preferably Azure DevOps.
• Knowledge of deployments to CDN and release procedures.
• Strong testing experience with Mocha/Chai/Selenium/Karma.
• Strong technical communication and customer collaboration.

Responsibilities

• Develop and maintain AI-powered frontend features.
• Contribute to core web libraries and components including a router and mock server kit.
• Collaborate in an agile squad to deliver high-quality FE solutions.
• Engage with customers to clarify requirements and provide updates.

Skills

Frontend development

AI awareness

Web Components

SPA/SSR (NextJS)

Testing (TDD/BDD)

Customer communication

Technical communication

Tools

Webpack

Rollup

Azure DevOps

Mocha

Chai

Selenium

Karma

NextJS

Job description

Gazelle Global is seeking a Senior Front-end Developer for a major client in Amsterdam. The role involves shaping an AI-powered FE development flow within a small squad, while building and maintaining core web libraries and components such as a custom router and a mock server kit.

The position is a 36-40 hour/week engagement for 2-3 years, operating in an agile environment with emphasis on TDD/BDD and frontend tooling mastery. Strong communication with customers is essential.