Senior Fullstack Engineer (f/m/x)

exmox; Hamburg; Vor Ort; EUR 90.000 - 140.000; Vollzeit

Benefits dieser Stelle

Transport subsidy

Learning budget

Wellness and gym

Workation

Bi-weekly team lunches

Zusammenfassung

exmox in Hamburg, Germany is seeking a Senior Full Stack Engineer (m/f/x) to own end-to-end platform features, collaborating with product and data to deliver scalable, high-performance systems used by millions.

You’ll work across backend and frontend with GraphQL/REST APIs, Docker and Kubernetes, and Vue or Nuxt. The role is hybrid with remote Mondays and Fridays and on-site Tuesdays to Thursdays.

Qualifikationen

• Experience building scalable, high-performance full-stack applications.
• Strong API development and integration (REST & GraphQL) with Python as primary language.
• Proficient in JavaScript/TypeScript, CSS/SCSS, Vue or Nuxt, and responsive frameworks like Tailwind.
• Understanding of distributed systems, high-volume workloads, and cloud deployment.
• Analytical, detail-oriented, and able to own the full development lifecycle.
• Excellent communication and collaboration with designers, product teams, QA, and engineers.

Aufgaben

• Backend Development: API development, REST/GraphQL, and integration work.
• Containerization: Use Docker and Kubernetes for deployment and orchestration.
• System efficiency: Ensure performant back-end processes and distributed systems.
• Frontend Development: Implement user-focused features with Vue/Nuxt and CSS/JS/TypeScript.
• API integration: Ensure smooth front-end communication via REST and GraphQL.
• Collaborate with UX/UI designers to support innovative ideas.
• Work with product and data to ship impactful features with ownership.
• Maintain production systems and improve reliability and scale.
• Participate in code reviews, testing, and quality improvements.

Kenntnisse

Full Stack Experience

API & Backend

Frontend & UI

Systems & Architecture

Problem-Solving & Ownership

Collaboration & Communication

Tools

Docker

Kubernetes

GraphQL

REST APIs

Vue/Nuxt

Tailwind

Python

Go

Jobbeschreibung

Your Mission

This is a company built for growth.

At exmox, you’ll work on real systems on a big scale. We build high-performing consumer products used by millions of users, operating in a highly competitive, global mobile gaming ecosystem.

Our products are data-driven by design—powered by event-driven architectures, complex business logic, and fast feedback loops. Decisions are informed by data, experimentation, and measurable impact, not gut feeling.

We’re scaling fast and building one of the most exciting innovations in mobile gaming: a rewarded user engagement and user acquisition platform. We help mobile game publishers not only acquire new users, but also keep players engaged through rewarding experiences. That means distributed systems, evolving architectures, and problems that don’t have textbook answers.

As Senior Full Stack Engineer (m/f/x) you won’t just be “coding tickets” or maintaining legacy systems. We look for people with an engineering mindset and entrepreneurial ownership—you build it, you own it. You’ll work close to product and data, take responsibility for what you ship, and see the impact of your work in production.

If you’re excited by complex systems, high traffic, data-driven decisions, and the chance to grow by solving challenging problems, we want to hear from you.

What You’ll Own

Backend Development:

• API Development: Implement API development best practices, with a preference for familiarity with GraphQL.
• Integration: Integrate and consume REST APIs for back-end communication.
• Collaboration: Work with UX and UI design specialists to ensure back-end solutions support innovative and user-oriented ideas.
• Containerization: Utilize Docker and Kubernetes for containerization and orchestration (nice-to-have).
• Systems Efficiency: Ensure efficient back-end processes and distributed systems.

Frontend Development:

• User Solutions: Implement innovative ideas and user-oriented solutions with UX and UI design specialists.
• Frontend Skills: Utilize and enhance skills in CSS, JavaScript, and TypeScript.
• Application Development: Develop and maintain applications using Vue or Nuxt and at least one responsive framework (e.g., Tailwind).
• API Integration: Ensure seamless integration with REST and GraphQL APIs for front-end communication.

What You Bring

• Full Stack Experience 5+ years of hands-on experience as a software engineer, building scalable, reliable, and high-performance full-stack applications.
• API & Backend Strong proficiency in API development and integration (REST and GraphQL), with Python as the primary language (Go is a plus).
• Frontend & UI Proficient in JavaScript/TypeScript, CSS/SCSS, and frameworks such as Vue or Nuxt. Experienced with responsive frameworks like Tailwind and familiar with UI animations and transitions.
• Systems & Architecture Practical understanding of distributed systems, high-volume workloads, and efficient backend/frontend processes. Experience with Docker, Kubernetes, and cloud-based deployment and orchestration is desirable. Skilled at designing maintainable and performant systems.
• Problem-Solving & Ownership Strong analytical skills with attention to detail. Able to tackle complex full-stack challenges holistically, prioritize effectively, and deliver high-quality solutions. Takes ownership of the full development lifecycle and ensures work balances short-term delivery with long-term system health.
• Collaboration & Communication Good communication skills in English. Comfortable working closely with UX/UI designers, product teams, QA, and backend engineers to deliver high-quality, user-focused products.

What You Can Expect

• Ambitious people, real ownership. Work with driven people who challenge each other openly and take full ownership of meaningful parts of the business.
• A company that prioritizes growth, performance, and impact. Comfort isn’t the goal here, progress is. We set a high bar and focus on delivering real results.
• A highly ambitious environment with a clear goal. Building the next European tech challenger is not just an idea, it is our mission. Everything we do is driven by the ambition to compete at the highest level and win.
• Direct exposure to leadership and real decision-making. You’ll work closely with experienced leaders, contribute to strategic discussions, and see how decisions shape the business in real time.
• Perks that help you focus on what matters. Transport subsidy, learning budget, wellness and gym, workation, bi-weekly team lunches, and more. The perks are great, but the real reason people join and stay is the challenge, the ownership, and the drive to win together.

This is not a remote only position, we offer you a flexible hybrid model here in Hamburg, Germany - working from home on Mondays & Fridays, coming to the office on Tuesday, Wednesday & Thursday!