Senior Fullstack Developer (Hybrid)

Opt Out Advertising; Amsterdam; Hybrid; EUR 45,000 - 56,000; Full time

Benefits offered by this job

Modern workspace in Amstelveen with Zs

Team lunches, drinks, outings

Holiday allowance

Pension scheme

Laptop and phone provided

Job summary

Opt Out Advertising is seeking a Senior Fullstack Developer to build and maintain privacy‑friendly advertising platforms. You will design APIs, backend logic, and create intuitive frontends while integrating external tools.

The role involves addressing scaling and performance challenges and contributing to the technical direction of a privacy‑first adtech company based in the Netherlands. The position is hybrid, with an office in Amstelveen and Amsterdam workstreams.

Qualifications

• At least 3 years of experience as a Fullstack Developer.
• Proficient in programming languages such as Java, C#, Javascript (React).
• Experience with MySQL databases.
• Fluent in Dutch and English.

Responsibilities

• Build and maintain advertising platforms.
• Design APIs and backend logic.
• Create intuitive and responsive frontends.
• Integrate external tools and systems.
• Contribute to our technical direction and innovation.
• Solve complex scaling and performance challenges.

Skills

Java

C#

JavaScript (React)

Tools

MySQL

Job description

Senior Fullstack Developer Vacancy

Senior Fullstack Developer (Hybrid)

As Senior Fullstack Developer, you’ll be working on innovative technologies that enable privacy-first advertising. You’ll develop and maintain systems that combine scalability, efficiency, and intuitive interfaces.

back-text

2 min read

Salary €4000 - €5000

Full-time (40 hours)

Amsterdam

We have 2 open spots for this role.

Overview

Opt Out Advertising is an ambitious scale‑up building privacy-friendly marketing solutions. With an energetic team and clients such as NPO, The Guardian, and Reuters, we deliver impactful advertising campaigns. We are rapidly growing in the Netherlands and expanding into the UK.

About The Job

What you’ll be doing

• Build and maintain advertising platforms.
• Design APIs and backend logic.
• Create intuitive and responsive frontends.
• Integrate external tools and systems.
• Contribute to our technical direction and innovation.
• Solve complex scaling and performance challenges.

Qualifications

• At least 3 years of experience as a Fullstack Developer.
• Proficient in 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, so you’ll need to be based in the Netherlands.

What's in it for you?

• Competitive salary based on experience
• Modern workspace in Amstelveen (with a view of the Zuidas) and possibility to work from home
• Team lunches, drinks, and outings.
• Informal atmosphere with room for creativity and initiative.
• Holiday allowance and a pension scheme.
• Laptop and phone provided by us
• Travel reimbursement, T&E Budget, pension plan, and holiday allowance.

About Opt Out Advertising

At Opt Out Advertising, we combine cutting-edge technology with ethical innovation to reshape the digital advertising landscape. We are a privacy-first adtech company with our own Ad Server, DSP, and publisher network, all built on proprietary technology. We are different compared to all the others in the industry. Brands and publishers alike love us for that.