AI-Native Fullstack Engineer (Python) - Flexible Hours

Kruko; Białystok; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

B2B or employment contract

Flexible working hours

International team

AI-native software development

Opportunity to shape workflows

Job summary

Kruko is seeking a software engineer to build AI-native software in an AI-driven development environment. You will design, develop and maintain web apps using Python and modern frontend tech, with Claude Code as a core part of the workflow.

You will own features end-to-end, design and integrate REST APIs, work with Docker and relational databases, and collaborate with global teams to continuously improve workflows and delivery quality.

Qualifications

• Practical experience delivering production software using Python and modern backend frameworks.
• Hands-on experience with Claude Code or comparable agentic coding tools in real development work.
• Ability to organise effective AI-assisted workflows: task planning, context management, implementation, testing and verification.
• Solid understanding of backend architecture, REST APIs and relational databases.
• Practical experience with Docker, Git and modern development workflows.
• Familiarity with JavaScript, HTML and CSS (React or Vue is a plus).
• Enough engineering knowledge to critically evaluate AI-generated code and spot risks.
• Strong ownership, independence and initiative: you take responsibility for results and can work through ambiguity.
• Excellent problem-solving skills, adaptability, curiosity and efficiency.

Responsibilities

• Design, develop and maintain web applications using Python and modern frontend technologies.
• Use Claude Code and AI agents as a primary part of your workflow, from understanding requirements to implementation, testing and delivery.
• Break down complex features into manageable tasks and coordinate AI-assisted workflows to deliver them efficiently.
• Own features end-to-end: technical decisions, implementation, testing, debugging and production readiness.
• Design and integrate REST APIs, external services and LLM-powered functionality.
• Work with relational databases, Docker and existing deployment infrastructure.
• Investigate problems independently, find root causes and deliver reliable fixes rather than temporary workarounds.
• Continuously improve your workflows, tools and automation to speed up development without compromising quality.
• Collaborate with developers, QA and product teams, and proactively flag risks, gaps and opportunities for improvement.

Skills

Python

Backend frameworks

Claude Code

Docker

Git

JavaScript

HTML/CSS

REST APIs

Relational databases

Tools

Claude Code

Git

Docker

OpenAI APIs

Job description

Kruko is seeking a software engineer to build AI-native software in an AI-driven development environment. You will design, develop and maintain web apps using Python and modern frontend tech, with Claude Code as a core part of the workflow.

You will own features end-to-end, design and integrate REST APIs, work with Docker and relational databases, and collaborate with global teams to continuously improve workflows and delivery quality.