Senior Software Engineer (m/f/d)

Responsibilities

• , shape key parts of our user experience, and contribute to critical business outcomes.
• This role is a full stack engineer who is excited about GenAI’s boosting their own engineering performance and productivity and now wants an opportunity to influence a large, ambitious organization

Requirements

• Engineering experience of
• 10+ years

Preferred

• Solid backend knowledge in
• Java
• and distributed systems (Scala is a plus).

Senior Software Engineer

to join our

Search Funnel team at AutoScout24 – the team behind the core buyer journey. This role is about real ownership

you’ll work on

high-traffic systems

The engineering world is moving very fast. We are all learning every day. Your core traits should be curiosity and a strong drive to learn and grow. We do not expect you to know everything. We expect you to help accelerate our curiosity and learning culture, and to become

AI-first

together with us.

What you’ll do

Be part of a team of strong fullstack engineers, guiding feature development using

React, TypeScript, Node.js

Java, Next

• Drive strategic technical decisions, ensure optimal code design standards, and promote long-term system health with the team.
• Architect and maintain a modular monolith that’s clean, scalable, and built to last.
• Apply an

AI-first mindset

to every phase of you-build-it-you-run-it: from design and coding to testing, deployment and operations.

Work hands-on in real product codebases

(for example TypeScript/Node/Next.js or Java/Spring), using GenAI tools to accelerate development, improve quality and simplify existing systems.

Optimise frontend performance with a strong focus on

• Core Web Vitals and user experience.
• Design backend services, in the cloud, that are efficient, observable, and production-ready.

Drive

• A/B experimentation, performance measurement, and data-informed decisions.
• Mentor engineers across the team and foster a high-performance engineering culture.

Backend

Node.js, Java, REST APIs

Infrastructure

AWS (EC2, S3, SQS, etc.), CI/CD via GitHub Actions

Other

Internal experimentation platform, analytics tooling, feature flag systems

Experience

• of leading team(s) of 5+ people in the last several years
• Deep expertise in
• JavaScript/TypeScript
• React, and
• Node.js

Experience driving and applying good code design principles

• Experience building and running high-traffic applications in a product-focused environment.
• Demonstrated personal excellence in using GenAI coding tools (preferably Codex) to significantly improve your own development speed and quality.
• Experience integrating LLM APIs (such as OpenAI, Anthropic, Azure OpenAI, Vertex AI or similar) into production applications.
• Strong understanding of frontend performance, SEO, and Core Web Vitals.
• Comfortable working with experimentation, feature flags, and data-driven iteration.
• Clear communicator and natural mentor, capable of guiding technical decisions and team growth