Tech Lead/Fullstack Developer (Python)

YOUR RESPONSIBILITIES

• Take technical ownership of projects and make key architectural and technology decisions
• Lead, mentor and support developers, helping the team solve complex technical challenges and grow their skills
• Design, develop and maintain scalable web applications, with a strong focus on Python and modern backend development
• Contribute hands-on to the codebase, conduct code reviews and ensure high standards of code quality, testing and maintainability
• Design scalable system architectures and REST APIs, applying Clean Architecture and SOLID principles
• Work across the stack when needed, collaborating on frontend solutions built with React / React Native and TypeScript
• Use AI-assisted development tools such as Claude in day-to-day engineering work, including coding, analysis, testing, debugging and solution design
• Work closely with PMs, POs, UI/UX Designers and Developers to translate business needs into effective technical solutions
• Gather, define and document functional and non-functional requirements, assess their technical feasibility and communicate them clearly to the development team
• Support Project Managers with technical planning, problem-solving, task estimation and prioritisation
• Collaborate on cloud-based solutions and modern DevOps practices throughout the development and deployment lifecycle
• Communicate directly with clients and stakeholders, providing technical recommendations and explaining architectural decisions
• Work in an Agile/Scrum environment and actively participate in planning, demos, retrospectives and other team activities
• Be comfortable working across different projects and adapting to changing technical and business requirements
• Occasionally travel for client meetings, workshops, external team collaboration or project planning

WHAT WE EXPECT FROM YOU

• 5+ years of professional software development experience, including hands-on experience in a Tech Lead, Technical Lead, Team Lead or similar technical leadership role
• Advanced knowledge of Python and its engineering best practices; experience with Django is a plus
• Strong understanding of software and system architecture, including designing modular, scalable and maintainable systems and REST APIs
• Proven ability to take technical ownership of a project, proactively propose solutions and make architectural decisions
• Strong hands-on engineering background - this is a leadership role, but you will still actively contribute to the codebase
• Experience delivering end-to-end solutions that meet both technical requirements and clients’ business objectives
• Practical experience with AI-assisted software development and tools such as Claude or similar - AI is part of our everyday engineering workflow
• Good understanding of modern frontend technologies, particularly React and TypeScript.
• Experience working with cloud environments and modern DevOps practices
• Good understanding of Clean Architecture, SOLID principles, testing practices and code quality standards
• Ability to define and document functional and non-functional requirements
• Experience with Git-based development workflows and code review
• Strong communication skills and the ability to work effectively with both technical and non-technical stakeholders
• Openness to learning, experimenting with new technologies and continuously improving engineering practices
• Polish and English at C1 level or higher
  
  

NICE TO HAVE

• Experience with Django
• Experience with React Native and mobile application development
  Hands-on experience building solutions using LLMs, AI APIs or other Generative AI technologies
• Experience introducing AI tools or AI-assisted workflows into software development teams
• Experience with Redux / Redux Toolkit / RTK Query
• Experience with HTML5, CSS3 / Sass and modern frontend development
• Experience in data analysis or data processing
  
  

WHAT WE OFFER

• Opportunity to work on challenging and technically ambitious projects
• A role with real influence over technical and architectural decisions
• Hands-on work with AI and modern software development tools
• 26 paid days off
• 20 fully paid sick leave days
• Flexible working hours and working model
• Modern tools, equipment and software needed for your work
• Private medical care
• Multisport card
• Regular team-building events, integrations, Christmas parties and workations
• A collaborative environment where knowledge sharing is encouraged through internal meetings and Tech Talks
  
  

RECRUITMENT PROCESS

• Apply with your CV
  Send us your application and tell us a little about your experience.
• Intro call with our People Team
  A short conversation to get to know each other and cover the basics.
• First interview (approx. 60 minutes)
  We’ll talk about your experience, previous projects, leadership background, expectations and what you’re looking for in your next role.
• Technical interview with our CTO (approx. 120 minutes)
  Meet Maciej Sułek, our CTO, and dive deeper into your technical experience, architecture, Python, problem-solving, technical leadership and approach to modern software development.