Senior Software Engineer (m/f/d)

Job description

**A career driven by you.** Join AutoScout24 Group and experience life in the fast lane. We’re not just leading the market; we’re creating it. We’re constantly innovating, evolving and transforming things for our customers. We’re driven, ambitious and determined to do our best work, together. For a career that doesn’t stand still, where you can put your ideas in the driving seat and change the way the world moves, join our international community. We're hiring a**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**, 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 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. **Our Tech Stack** - **Frontend:** React, TypeScript, Zustand… - **Backend:** Node.js, Java, REST APIs - **Infrastructure:** AWS (EC2, S3, SQS, etc.), CI/CD via GitHub Actions - **Observability:** Datadog - **Other:** Internal experimentation platform, analytics tooling, feature flag systems **Must haves** - Engineering experience of **10+ years** - Experienceof**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**. **Nice to Have** - Solid backend knowledge in **Java** and distributed systems (Scala is a plus).