As a Senior Fullstack Engineer at VisioLab, you'll play a critical role in shaping the product experience at the core of our AI checkout platform. This is not a maintenance role. It’s a build role. You’ll be working in a fast-growing startup where speed, ownership, and technical excellence are the default.

You'll join a lean, focused tech team and take full ownership of features that go live across some of the most demanding real-world environments, from major US stadiums to high-volume foodservice venues. You’ll help us evolve our entire product stack, from the customer-facing interface to backend systems that orchestrate real-time computer vision and payment flows.

Our architecture is built on modern, serverless infrastructure. That means no legacy systems, no outdated tech debt. Just the chance to move fast, ship clean, and focus on building powerful features that directly impact user experience and business growth.

You’ll contribute to the next generation of self-service technology that combines edge AI, frictionless UX, and the simplicity of consumer-grade hardware. This is a chance to build infrastructure that scales fast and feels invisible. If you're excited by fast feedback loops, massive surface area, and real product ownership, this is your seat at the table.

• Scale the Platform: Help evolve our core product architecture to support global rollout across thousands of high-traffic locations. Your work will directly impact performance, reliability, and ease of deployment.

• Build Enterprise-Ready Features: Design and deliver scalable self-service tools, admin dashboards, and workflows that serve both end-users and enterprise operators. You’ll create features that balance flexibility with simplicity and work out-of-the-box in real-world conditions.

• Integrate with Global Ecosystems: Connect our platform with third-party APIs for loyalty programs, inventory management, reporting, and more. You’ll design integration layers that are modular, reliable, and built for scale.

• Shape Technical Direction: Stay current on modern frameworks, serverless infrastructure, and fullstack best practices. You’ll bring new tools, patterns, and perspectives into the team and help define how we build as we grow.

• Own What You Ship: From design to deployment, you’ll take full ownership of your work, ensuring it meets the high standards our clients and users expect and iterating quickly based on real-world feedback.

• Tech that moves fast—like you. Build with TypeScript, React, and Next.js on the frontend. Power it all with Firebase and GCP on the backend. Ship fast using GitHub, design in Figma, and stay synced via Slack and Google Workspace. 
  
  

• Strong experience in Typescript, React and a full stack framework such as Next.js
• Experience with serverless deployments and NoSQL databases such as Firestore or MongoDB
• Proven track record of delivering high-quality, complex applications
• Great communication skills, either native German or native English
• Ability to join the team in person on a regular basis
• Experience with payment and POS solutions is a plus

We are a young, dynamic, and ambitious team united by a shared passion for innovation and delivering exceptional solutions. Our core team consists of four iOS engineers, a full-stack engineer, an ML engineer, and a designer, supported by the CTO and COO, who take on the roles of Scrum Master and Product Owner, respectively.

At VisioLab, we foster a culture of open communication, collaboration, and quick learning, enabling us to adapt and excel in a fast-paced environment. Operating in two-week sprints, we consistently deliver valuable releases to our customers, ensuring their needs are at the center of our work.

We hold ourselves to high standards, striving for quality in everything we do. Continuous improvement is a key part of our philosophy, whether it’s enhancing our processes, refining our product, or growing as individuals.

Our dedication doesn’t end with hard work. We believe in celebrating our successes together. Whether it’s solving complex challenges, achieving milestones, or delivering value to our clients, we come together to recognize and enjoy the results of our efforts.

Being part of VisioLab means being part of a team that values innovation, collaboration, and growth, all while working toward defining the future of frictionless checkout technology.

1. Introductory Interview: A short call to get to know each other. (with CTO) 
2. Technical Interview: Deep dive into your previous work (with co-workers)
3. Founder Interview: A conversation directly with the founders to discuss your fit and aspirations. (with founders)