Junior Fullstack Developer - Privacy-First AdTech (Hybrid)

Opt Out Advertising; Amsterdam; Hybrid; EUR 31,000 - 42,000; Full time

Benefits offered by this job

Laptop provided

Pension plan

Travel reimbursement

Home office option

Team lunches and outings

Job summary

Opt Out Advertising is seeking a Junior Full Stack Developer for a hybrid role in Amsterdam. You will assist in building and maintaining advertising platforms, design APIs and backend logic, and contribute to intuitive frontends while growing with a privacy-first adtech team.

The role suits those with 0–2 years of experience, comfortable with Java, C#, JavaScript (React), and MySQL, and who are eager to learn in a collaborative environment in the Netherlands.

Qualifications

• 0–2 years of experience as a Fullstack Developer or strong portfolio/internship experience.
• Basic knowledge of programming languages such as Java, C#, Javascript (React).
• Experience with Scala is a plus.
• Familiar with databases like MySQL.
• A proactive mindset and strong team spirit.
• Fluent in Dutch and English.
• Curiosity about digital advertising, privacy, and innovation.
• Hybrid working at our office in Amstelveen. Not fully remote; based in the Netherlands.

Responsibilities

• Assist in building and maintaining advertising platforms.
• Learn to design APIs and backend logic.
• Contribute to intuitive and responsive frontends.
• Help integrate external tools and systems.
• Grow with the team and contribute to innovation.
• Learn how to tackle scaling and performance challenges.

Skills

Java

C#

Javascript (React)

Tools

MySQL

Job description

Opt Out Advertising is seeking a Junior Full Stack Developer for a hybrid role in Amsterdam. You will assist in building and maintaining advertising platforms, design APIs and backend logic, and contribute to intuitive frontends while growing with a privacy-first adtech team.

The role suits those with 0–2 years of experience, comfortable with Java, C#, JavaScript (React), and MySQL, and who are eager to learn in a collaborative environment in the Netherlands.