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Senior Backend/Full-stack Developer

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Senior Backend/Full-stack Developer

Better Ads GmbH

Senior Backend/Full-stack Developer

Skills

ReactNodeExpressPostgreSQLRedisRabbitMQCouchDBGitLabMachine LearningAILinux

1 month ago

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Important information


Contract type:

Permanent

Location:

Spain

Work mode:

Remote

Published on:

15 September 2026

What they need


Who are we?

Better Ads GmbH builds technology to enable and improve how digital advertising works while at the same time trying to improve the user experience and significantly enhance consumer privacy (e.g. no tracking) relative to the industry standard.

We work with rather than against the advertising ecosystem and this means integrating the best in-class off-the-shelf technologies suitable to our purpose and building new technology when necessary. This hybrid rather than do-it-all approach means we can move faster and try to focus on building things that have the potential to be game changers for our business, advertisers and consumers.

Better Ads is currently a small technical team yet we have almost 80 internal git repos used across a variety of projects and services.

What are we looking for?

A senior backend or full stack developer. We seek a responsible and organized individual capable of working effectively in a remote team.
Attention to detail and a proactive, constructive attitude are essential.

We want to integrate AI/ML into our tool belt. Part of your job will be to learn it.
We will provide you with the time and materials required. You don't need to be an expert in Math or a PhD!

You should be a strong individual contributor capable of independent problem solving, good component architecture and producing high quality, well-tested code. You are motivated to understand the business problem domain. You know when to ask for help and input and are also able to mentor and collaborate well with other team members as the team grows.

What do we offer?

  • 100% remote work.
  • Laptop (Lenovo, Apple or similar) and any necessary equipment to work from home.
  • Flexible hours and work-life balance measures.
  • Our own projects filled with challenges and international projection.
  • Excellent work environment.
  • Competitive salary: 70k..90k
  • Career plan + 3 paid study hours per week.

What is the job like?

  • Every Friday the team has a video call to organize the next sprint.
  • Every day except Friday we have a short daily meeting to report our status.
  • You will deliver high-quality, maintainable code and adhere to best practices.
  • To ensure everything works correctly you will write unit/integration/e2e tests.
  • You will work on our next generation digital advertising screen auction integration, dynamic image/video for social media advertising, bots ("AI agents") and other related projects, we have a lot of them.

Tasks

(see other sections)

Requirements

What skills and background are we looking for?

In the technical field, we need you to meet the following requirements:

  • 5+ years of experience in similar positions.
  • Attention to detail.
  • Responsible for your own work.
  • Proficiency using Git.
  • English.
  • Node.js. You know how the event loop works, streams, asynchronous programming, deal with errors, events.
  • Experience in distributed, high availability, high scalability projects.
  • Experience with message queues.
  • Experience with Redis.
  • Solid relational database knowledge: Modern sql, how is data indexed, stored procedures, transactions
  • Linux.
  • Basic shell scripting.
  • Willingness to learn.

The following experience will make you a stronger candidate

  • Experience with CDC (Change data capture).
  • Experience with Polyglot persistence.
  • Experience in problems beyond the CRUD problem space.
  • Experience with AI/ML

Our tech stack

  • Express
  • Nextjs / React
  • Redis, Postgresql, Couchdb
  • RabbitMQ
  • Gitlab CI/CD
  • Apache Spark
  • Linux

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