10+ of professional Fullstack development experience with majority of experience with modern JavaScript/TypeScript
Deep expertise in at least one major framework (React, Angular, or Vue) and its ecosystem
Strong understanding of HTML5, CSS3, responsive design, and cross-browser compatibility
Experience building complex, data-heavy UIs with real-time data visualization
Solid grasp of Fullstack performance optimization — bundle size, rendering, lazy loading, caching strategies
Experience with state management patterns (Redux, MobX, Zustand, or similar)
Proficiency with Fullstack testing methodologies — unit, integration, and end-to-end (Jest, Cypress, Playwright, or similar)
Familiarity with design systems and component library development
Experience using AI-assisted development tools (e.g., Claude Code) to boost engineering productivity

2+ years of experience leading or managing a Fullstack engineering team (people management) is a must
Proven track record of mentoring engineers and conducting impactful code reviews
Experience defining Fullstack architecture for large-scale applications
Strong understanding of APIs, RESTful services, GraphQL, and system design
Ability to balance technical debt management with feature delivery
Excellent communication skills — can articulate technical decisions to both engineers and non-technical stakeholders

Bias for shipping and iteration — you deliver incrementally and learn from real users
Comfortable with ambiguity and rapid change in a fast-paced environment
Thinking in terms of leverage and reuse, not one-off solutions
Pragmatic about trade-offs between perfectionism and speed of delivery

People-only managers who have drifted away from active development. We need someone who can jump into a critical bug or a complex refactor alongside their team, leveraging the latest AI tools to solve problems faster.

Familiarity with ad-tech, real-time bidding platforms, or high-traffic data products
Contributions to open-source Fullstack projects or community involvement
Experience building Fullstack interfaces for AI/ML-powered products (e.g., chatbots, recommendation engines, AI-generated content displays)
Familiarity with LLM APIs and prompt-driven UI patterns

What do we offer?

Reporting directly to Co-founder & CTO
Direct access to top management and an extremely “visible” role
Exceptional career growth and learning opportunity
A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries
A flexible work-from-home arrangement: hybrid or fully remote option - you decide
A 500-dollar home-office setup budget
A 1000-dollar annual learning and development budget
Office exchange program

Fullstack Team Lead

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