Senior Software Engineer / AI Enabler (m/f/d)

A career driven by you.

At Leasing Markt. de, we bring customers and dealers together to make car leasing more accessible, transparent, and efficient.

With over 1,000 partner dealerships andnearly 2million users across the DACH region and the Netherlands, we’vebecome Germany’s #1 leasing platform.

To keep growing and driving innovation in the mobility space, we’re looking for a Senior Software Engineer to join our high-performance team at our Düsseldorf office.

As a Senior Software Engineer, you will play a key role in designing and developing robust, scalable applications that power one of the largest automotive leasing marketplaces in Europe.

You’ll collaborate with a cross-functional team to build and evolve solutions that are architecturally sound, easy to maintain, and built for long-term impact.

You’ll help shape technical direction while raising the bar for software quality and stability across the platform.

What you’ll do

• Join one of our builders’ teams to build great products loved by our customers.
• 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 Type Script/Node/Next. js or Java/Spring), using Gen AI tools to accelerate development, improve quality and simplify existing systems.
• Build and evolve AI-powered internal tools and workflows (assistants for coding, reviews, documentation, testing) that engineers across Auto Scout24 can rely on every day.
• Act as a multiplier and culture driver: coach teams on effective Gen AI usage, share patterns and anti-patterns, and help establish AI-first ways of working across our engineering organization.
• Experiment, measure and improve: run small, data-informed experiments with teams, learn what works in our context, and turn successful approaches into repeatable standards and playbooks.

What you’ll bring

• Experience leveraging AI and Generative AI (Gen AI) to enhance engineering productivity — including code generation, debugging, reviews, documentation, and decision support — with a proactive mindset toward adopting tools that streamline development and drive innovation.
• Deep, hands-on experience building production systems (we expectyou’vespent at least 5 years doing this, possibly muchmore), ideally with PHP and Laravel as well as Type Script/Node. js/Next. js on AWS, Azureor GCP.
• Demonstrated personal excellence in using Gen AI coding tools (for example Git Hub Copilot, Chat GPT, Claude Code, Cursor, Open AI Codex) to significantly improve your own development speed and quality: code generation, refactoring, debugging, tests and documentation.
• Experience integrating LLM APIs (such as Open AI, Anthropic, Azure Open AI, Vertex AI or similar) into applications or internal tools.
• Strong communication and influencing skills: you can introduce new tools and practices, align stakeholders, handle skepticism and iterate based on feedback.
• A curious, growth-oriented mindset: you actively seek out new practices and tools, you are comfortable learning in public, and you help others do the same.
• A pragmatic view of Gen AI: you understand its limitations and risks and know how to put guardrails in place (reviews, tests, policies) to keep usage safe, compliant and sustainable at scale.
• Experience with performance optimization, caching strategies, and system observability is a plus.
• A culture of growth

With over 50 nationalities represented, we’re proud to welcome people of all backgrounds to our growing community, and we’re always finding new ways to help people feel welcomed and included.

Here, you’ll have the tools, training and support you need to work in a way that suits you, learn new skills and reach your potential.

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