Senior Software Engineer API (f/m/d) - Node.js, SQL

Instaffo; Berlin; Vor Ort; EUR 90.000 - 125.000; Vollzeit

Benefits dieser Stelle

30 days vacation

Germany ticket

JobRad

Smart Fridays

Health offerings

RTL+ access

Zusammenfassung

smartclip Europe GmbH is seeking a Senior Software Engineer API (f/m/d) for Node.js and SQL to build robust microservices and scalable backend systems. You will own features end-to-end, collaborate across teams, and contribute to architecture decisions while ensuring secure authentication flows.

The role emphasizes production-grade code, test automation, and modern DevOps practices in a Berlin-based environment. Fluent English and work authorization for Germany are required.

Qualifikationen

• Proven Node.js/TypeScript backend development experience.
• Experience designing scalable database schemas (PostgreSQL).
• Strong ORM usage and understanding of when to use ORMs.

Aufgaben

• Bridge systems by building and maintaining robust microservices for internal/external integrations.
• Own features from concept to production deployment.
• Contribute to technical roadmap with scalable solutions.
• Implement and refine authentication/authorization flows (OAuth, Auth0).
• Optimise data layer with SQL and PostgreSQL for performance.

Kenntnisse

Node.js

TypeScript

PostgreSQL

ORMs

Automated testing

Docker

Git & CI/CD

Ausbildung

Bachelor's degree in Computer Science or equivalent

Tools

PostgreSQL

Jobbeschreibung

You are interested in the position as Senior Software Engineer API (f/m/d) - Node.js, SQL at smartclip Europe GmbH?

Requirements

Please note that this position requires work authorization for Germany.

Language: English - Fluent (C1)

Core Competencies

• Node.js & TypeScript Mastery: You can write clean, maintainable, and type-safe code that thrives in a production environment.
• Data Architect Mindset: You don't just write queries; you understand how to design efficient database schemas and optimise them for performance (PostgreSQL).
• The Art of Persistence: You know how to leverage ORMs effectively, understanding exactly when they help and when they get in the way.
• Quality Obsession: Automated testing (jest/mocha) isn't a chore for you—it's the only way to ship with confidence.
• DevOps Basics: You are comfortable with Docker, Git, and the general flow of modern CI/CD pipelines.

Bonus Skills (The Power-Ups)

• Experience navigating the AWS ecosystem or monitoring tools like Grafana, Prometheus, or Graylog.
• A track record of mentoring peers or leading the technical direction of a project.
• A degree in Computer Science or a self-taught journey evidenced by a strong portfolio.

Activities

We are looking for a backend specialist who loves the intersection of stability and scalability. Your focus will not be on a title, but on the impact of your code. You will:

• Bridge Systems: Build and maintain robust microservices that ensure seamless communication between internal and external environments.
• Drive Implementation: Take full ownership of features from a raw idea to a production-ready deployment.
• Evolve the Architecture: Contribute to our technical roadmap by questioning the status quo and proposing scalable solutions.
• Secure the Flow: Implement and refine authentication and authorisation flows (OAuth, Auth0) to keep our systems safe and accessible.
• Optimise the Core: Ensure our data layer is lean and fast, applying deep knowledge of SQL and PostgreSQL to solve complex data challenges.

Team

• Ownership over tickets: You're trusted with real responsibility, not just tasks. No unnecessary bureaucracy, no micromanagement – we rely on you to take things forward.
• Build > Talk: We test what works – not what sounds good. Fail fast, learn faster.
• High standards, low ego: We take our work seriously, but not ourselves. Direct feedback, honest collaboration, no drama.
• Stay sharp: Hackathons, conferences, community – we invest in your growth and keep you at the cutting edge.
• And yes – the fundamentals are covered too: 30 days of vacation + Dec 24 & 31 off, Smart Fridays (4 days week possible), mobility (Germany ticket & JobRad), sports & health offerings, mental health support, corporate benefits, RTL+ access, and more.

About The Company

smartclip is the adtech development unit of RTL Group - Europe's leading free-to-air broadcaster group. Our proprietary advertising technology is custom-built for the needs of European broadcasters and publishers - enabling media owners to implement smarter monetisation strategies. We are committed to delivering the most innovative ad experiences spanning in-stream, out-stream, addressable TV, connected TV, audio, and gaming - ultimately empowering brands with true cross-screen storytelling opportunities on all devices.

For more information: Please visit www.smartclip.tv and follow us on LinkedIn.