Middle Full Stack Engineer (Python+React)

Nix

Ukraine (Poland) Remote permanent

Posted: February 6, 2026

Required Skills

Job Description

N-iX is looking for Middle Full Stack Engineer (Python+React) to join our team.

About Us:

We are looking for a Full Stack Engineer (Python + React) to join a collaborative product team of around 8 engineers working on a complex, high-impact software platform. You’ll contribute across the stack, building scalable backend services and intuitive frontend experiences, while actively using AI-powered development tools to improve productivity and code quality. The team follows Agile best practices, values clean architecture, ownership, and continuous improvement.

As a Full Stack Engineer you’ll help to develop the platform that serves as an enterprise next-generation endpoint protection (EPP) + endpoint detection & response (EDR) solution that runs on Windows (as well as macOS, Linux, servers, etc.). It comes as a single, unified agent designed to prevent, detect, respond, and remediate cyber threats, including malware, ransomware, fileless attacks, and advanced persistent threats — all in real time.

Key Responsibilities:

• Design, develop, and maintain backend services in Python

• Build and evolve frontend applications using React

• Collaborate closely with backend, frontend, and QA engineers in an Agile/Scrum environment

• Participate in sprint planning, reviews, retrospectives, and daily stand-ups

• Write clean, testable, and well-documented code

• Integrate and work with APIs, data stores, and third-party services

• Use AI-assisted development tools (e.g., code assistants, testing tools, analysis tools) to improve delivery speed and quality

• Contribute to architectural discussions and technical decisions

• Support production systems and participate in troubleshooting when needed

Required Skills & Experience:

• 4-5+ commercial experience with Python (backend development)

• Solid experience with React and modern frontend development

• Experience building full-stack applications end-to-end

• Good understanding of RESTful APIs and client-server architecture

• Familiarity with Agile development methodologies

• Experience working in a team environment with shared ownership

• Comfortable using AI tools in daily development (e.g., coding assistants, test generation, debugging, documentation support)

We offer*:

• Flexible working format - remote, office-based or flexible

• A competitive salary and good compensation package

• Personalized career growth

• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

• Active tech communities with regular knowledge sharing

• Education reimbursement

• Memorable anniversary presents

• Corporate events and team buildings

• Other location-specific benefits

*not applicable for freelancers

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