Senior Full Stack Engineer | React & Python | (f/m/d)

We are looking for a Senior Fullstack Engineer to drive the technical approach, work breakdown, execution, and delivery of projects in one of our Platform teams. You have the knowledge to tackle overarching strategic topics, influence the architecture, focus on performance & security, and advocate for best engineering practices.

This is a full-time position, where you can work either remotely in Europe or from our offices in Vienna, Katowice or Sofia.

Some of the things you’ll do:

In the first month:

• Get to know your product development team and get familiar with our product, technologies, systems & architecture, processes and practices.
• Absorb our engineering culture, start coding and ramp-up quickly within the Adverity universe. 
• Get to know the architecture and codebase inside-out.

In the first 6 months:

• Support your product development team with deep code reviews, guiding them towards better system quality and engineering practices.
• Participate in shaping new features by get your hands dirty in PoCs, breaking down technical scopes, and commence working on team deliveries.

Beyond the first 6 months:

• At this point, you know the Adverity platform very well, both product and tech.
• Participate in strategic cross-product engineering initiatives and help product development teams towards pragmatic technical decisions based on limited context, striving to constantly improve maintainability and reliability.
• You increase your impact beyond your product development team to the whole engineering team & beyond.

We’re excited if you have: 

• Daily use of AI tools (e.g. coding copilots, LLM-based design assistants, automation agents) and the ability to integrate AI reasoning and automation into workflows across coding, documentation, testing, and deployment.
• Fluency in Python and (preferably) the Django framework, with experience managing large-scale production systems and building REST APIs.
• Knowledge of front-end technologies such as TypeScript and (preferably) React or Vue.js.
• Skill in performing and validating AI-assisted code reviews — critically evaluating LLM outputs for correctness, context alignment, and architectural coherence, and knowing when to intervene with human judgment.
• Strong communication and collaboration skills: you communicate proactively, listen well, and enjoy writing to clarify and share ideas.
• A passion for learning, experimenting, and turning new AI tools into practical, repeatable workflows — always keeping user value at the core.

Nice to have:

• During your career you successfully mentored and coached engineers.
• Experience with data products and its challenges.
• Skill in demonstrating AI-driven productivity to peers and driving adoption within technical teams.

Why you’ll love it here:

• Flexible working hours and home-office
• Internal shares program (EDPP)
• Ergonomic workspace and cutting edge technology
• Budget for job relevant training
• Free company health coaching
• Regular team events (also remote) and a yearly global team trip
• Modern and stylish offices
• Sustainable merch for all employees
• Adverity Social Responsibility Days (+2 days paid off)

If this position is filled in Vienna, the minimum gross salary is €60,000. If this vacancy is filled anywhere else, the salary may differ. In any case, we offer competitive salaries depending on your qualifications and experience.

Apply now if you are ready to revolutionise the way businesses work with marketing data. We look forward to meeting you!