Senior Full Stack Developer (AI-Focused)

At Fun Crafters, we're not just another gaming company; we're a passionate community of gaming enthusiasts and innovators with over a decade of expertise in crafting engaging mobile games. With a mission to create unforgettable gaming experiences, we've carved our path in the gaming industry. 

Join us to unleash your creativity, shape the future of mobile gaming, and be part of a team where your ideas matter. 

Welcome to a world where fun knows no bounds!

We're looking for a highly skilled Senior Full Stack Developer with a strong foundation in Python and a passion for building and maintaining AI-powered applications. You’ll work on internal tools that drive our AI initiatives, combining your full stack expertise with a deep understanding (or strong interest) in modern AI technologies.

The ideal candidate may come from a machine learning, data science, or engineering background and is comfortable using tools like Claude Sonnet, DeepSeek, and LLMs to improve workflows and product outcomes.

Duties/scope:

• Build and maintain internal tools for AI-driven projects across the full stack.
• Refactor and enhance AI-generated or auto-generated codebases to production standards.
• Leverage frameworks like Claude Sonnet, DeepSeek, etc., to integrate AI into daily development tasks.
• Collaborate closely with product owners and stakeholders to scope and deliver scalable features.
• Explore and integrate new AI technologies to improve user experience and engineering efficiency.
• Identify and resolve performance bottlenecks, security risks, and tech debt.
• Contribute to team knowledge sharing, tooling improvements, and documentation.

Mandatory Requirements:

• Strong experience in both frontend and backend development.
• Expertise in Python (Flask) and writing clean, scalable, production-grade code.
• Solid experience maintaining and refactoring code written by AI or autogenerated systems.
• Familiarity with multiple frontend frameworks (e.g., React, Vue, or others).
• Exposure to or interest in AI/ML frameworks and libraries.
• Experience using AI assistants and LLMs in software development workflows.
• Excellent communication skills in Polish and English.
• Ability to work independently and collaboratively across cross-functional teams.

Soft Skills & Culture:

• Clear Communication: Ability to simplify and articulate complex technical concepts for diverse audiences (designers, developers).
• Active Listening: Strong listening skills to understand feedback, ideas, and concerns from team members and stakeholders.
• Presentation Skills: Comfortable presenting ideas and updates in a clear, structured way, ensuring understanding.
• Meeting Facilitation: Can organize and lead meetings, ensuring they stay on track and lead to actionable outcomes.
• Conflict Resolution: Ability to mediate disagreements and foster positive collaboration.
• Knowledge Sharing: Actively shares expertise and mentors less experienced team members.
• Cross-Functional Collaboration: Skilled at working with diverse teams (backend, design, product) to ensure alignment.
• Adaptability: Adjusts communication style based on context and audience, receptive to feedback.
• Written Communication: Clear and concise in documentation, emails, and reports.
• Fast-Paced Environment: Comfortable with rapidly changing priorities, able to adapt quickly and iterate with minimal direction.
• Fluency in Polish and English: Strong communication skills in both languages, enabling effective collaboration across teams.

What we offer:

• An epic journey in the mobile RPG gaming industry.
• Flexible contract options: employment or B2B.
• Remote, in-office, or hybrid work.
• Opportunities for professional growth with a training budget.
• A fantastic team and many company events.
• Competitive benefits package.
• A modern office with all the essentials.