Senior Full-Stack Engineer — AI-Powered Document Platform (Remote)

N-iX; Poland; On-site; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Flexible work format

Competitive salary

Career growth

Mentorship program

Education reimbursement

Team events

Job summary

N-iX is seeking a Senior Full-Stack Engineer to join a global AI-powered document processing platform. The role blends 70% frontend work with TypeScript (React/Next.js) and 30% backend work in Python, building scalable APIs and data workflows.

You will collaborate with GenAI and platform teams to deliver robust, production-grade systems in AWS, with strong emphasis on code quality, security, and observability. Remote-friendly with flexible formats.”

Qualifications

• 6+ years of professional software engineering experience.
• Solid experience in Python (FastAPI, Flask, Django, or similar).
• Strong proficiency with TypeScript and modern frontend frameworks (React, Next.js, or similar).
• Hands-on experience designing and implementing microservices, APIs, and backend systems.

Responsibilities

• Build front-end components and UIs using TypeScript (React, Next.js, or similar).
• Design, develop, and maintain backend services using Python (FastAPI, Flask, Django, or similar).
• Develop and integrate REST APIs and microservices with strong performance, reliability, and observability.
• Collaborate with GenAI engineers to integrate AI-driven features and document-processing flows.
• Implement data processing pipelines for structured and unstructured data.
• Work with AWS.
• Contribute to architecture, design patterns, and technical decisions.
• Write automated tests and ensure code quality, maintainability, and security.
• Partner with product managers, designers, and QA engineers to deliver high-quality solutions on time.
• Document code, service interfaces, workflows, and architectural decisions.

Skills

Python backend

TypeScript frontend

React/Next.js

Microservices design

Databases (PostgreSQL/MySQL)

AWS cloud

CI/CD & Docker

Agile teamwork

Tools

Docker

Git

FastAPI

Django

Next.js

Job description

N-iX is seeking a Senior Full-Stack Engineer to join a global AI-powered document processing platform. The role blends 70% frontend work with TypeScript (React/Next.js) and 30% backend work in Python, building scalable APIs and data workflows.

You will collaborate with GenAI and platform teams to deliver robust, production-grade systems in AWS, with strong emphasis on code quality, security, and observability. Remote-friendly with flexible formats.”