About the job

Do you want to be part of one of Sweden's fastest-growing start-ups?

Preventai has developed the Antrino platform – a technology that makes every camera intelligent.

Instead of cameras just recording video in the background, they can now perform tasks in real-time: detecting thefts, identifying security risks, analyzing flows in stores and industries, and enabling organizations to act immediately when something happens. Video goes from being something reviewed in retrospect to becoming active, real-time decision support.

This means that millions of existing cameras, which previously only functioned as passive sensors, can suddenly start working actively for businesses – from retail and logistics to security companies and public environments.

Everything is built on a foundation of Privacy by Design, where data protection and GDPR compliance are central parts of the architecture. The goal is to make advanced video analysis both powerful, scalable, and responsible in how data is handled.

Purpose and Goal

We are looking for a Full Stack Engineer who wants to be part of our journey in automating detection. In this role, you will work across both frontend and backend systems, building the core product experience that allows users to connect cameras, deploy intelligence, and interact with real-time insights from video streams.

Today, parts of our platform are rapidly evolving as the product scales. As we grow, you will play a central role in designing, building, and refining product features, improving system architecture, and ensuring a seamless and reliable user experience across the platform.

The role is broad and hands-on, where you will work closely with our engineering team and leadership to develop a scalable, high-performance platform that can support thousands of live video streams and global deployments. You will help shape both the user-facing interfaces and the underlying backend systems, ensuring the platform remains intuitive, fast, and reliable as we expand.

Your main areas of responsibility will include:

• Designing, developing, and maintaining both frontend and backend components of our platform
• Building user-facing features and interfaces that allow customers to interact with video streams, analytics, and system insights
• Developing and maintaining scalable backend services and APIs that power the platform
• Collaborating closely with designers and engineers to create intuitive, high-performance product experiences
• Ensuring the platform remains fast, reliable, and responsive as the number of users, cameras, and data streams grows
• Writing clean, maintainable, and well-structured code while following modern development best practices
• Participating in system architecture discussions and helping design scalable solutions for complex problems
• Troubleshooting and resolving bugs, performance issues, and production incidents across the stack
• Collaborating with DevOps and AI engineers to integrate machine learning systems and real-time data pipelines into the product
• Continuously improving the developer experience, tooling, and internal workflows to accelerate development and product delivery
• Contributing to code reviews, technical discussions, and knowledge sharing within the engineering team
• Helping shape the technical direction of the platform as we scale globally and expand the product capabilities

Who are we looking for?

• Strong experience as a Full Stack Engineer, preferably working on complex, production-grade applications
• Solid experience building modern web applications, including both frontend and backend systems
• Proficiency with JavaScript/TypeScript and modern frameworks such as React, Next.js, or similar
• Experience designing and building scalable backend services and APIs
• Familiarity with databases and data modeling (e.g., PostgreSQL or similar)
• Experience working with cloud platforms such as AWS, Azure is a plus
• Understanding of system performance, scalability, and distributed architectures
• Experience integrating real-time data systems, streaming architectures, or AI-powered services is a strong advantage
• Strong problem-solving skills and the ability to build reliable, maintainable systems
• Excellent communication skills in English, both written and spoken; Swedish is a plus

Personal qualities

We believe you are a team player with a strong work ethic, who thrives in a fast-paced environment where you build something from the ground up together. You have a positive attitude towards problem-solving and always deliver high quality in your accounting work, while being curious about how processes can be improved and streamlined.

You enjoy solving problems and see opportunities where others see obstacles. In a rapidly growing company, things often change – therefore, you thrive in an environment where initiative, responsibility, and structure are important qualities. You have the ability to work independently, prioritize correctly, and manage several tasks or projects in parallel.

With us, you will be part of a culture where we value intellectual curiosity, high pace, and collaboration between technology and business. We build advanced technology but believe in simple, clear ways of working and a team where everyone contributes to the whole. This means we are looking for people who not only want to do their job – but who also want to help build structures, improve processes, and participate in shaping how the company develops going forward.

Form of employment: Full-time with an initial probationary period of 6 months

Start date: Immediately

Location: Stockholm, Danvikstullen (potential move to a larger office)

Recruitment Process

Our recruitment process is simple and transparent. We review applications continuously and contact candidates we assess to be a good match for the role.

The process usually consists of a first conversation where we get to know each other and go through your background and the role in more detail. This is followed by one or two in-depth conversations where we discuss experience, working methods, and how you could contribute to developing our finance function.

In the final stage, we may also ask for references. Our goal is for the process to be efficient, clear, and respectful of your time, while ensuring that both you and we feel it is the right match.

We look forward to your application!