Senior Fullstack Developer (Python + React)
Offer summary

(Summary generated by AI based on the full job description)

Project involves building an AI-enabled application that digitalizes and automates procurement processes. Tech stack includes Python for backend and React for frontend, working with LLM/Generative AI and cloud environments (AWS). Responsibilities cover developing backend services and REST APIs, implementing responsive React applications, productionizing experimental code and POCs from Data Scientists, integrating with cloud infrastructure and supporting CI/CD, ensuring scalability, security and observability, and collaborating with AI, Cloud and Product teams.

you can start ASAP

Senior Fullstack Developer (Python + React)

Company: Cyclad

from: 18 September 2026
to: 18 October 2026
100 - 160 złnet (+ VAT)/ hr.B2B contract (full-time)
Salary details
basic salary
Offer parameters
level:senior
working mode:hybrid
Gdańsk, Pomeranian
Gdańsk, Pomeranian

Requirements

Expected technologies

Python
React
AWS
Git

Operating system

Windows

Our requirements

  • 5+ years of professional experience in full stack development
  • Strong hands-on experience with both Python backend development and React frontend development
  • Experience with a modern Python web framework
  • Strong experience designing, building, and maintaining REST APIs
  • Solid experience building modern React applications, including state management, hooks, and API integration
  • Practical experience working with AWS and cloud-based application environments
  • Experience transforming exploratory or experimental code into production-ready systems
  • Good understanding of full stack architecture, system integration patterns, and interface design
  • Experience with Git and Agile software development practices
  • Understanding of scalable, secure, and maintainable application development
  • Excellent communication skills in English
  • Ability to work effectively in a cross-functional international team involving Data Science, AI, Backend, Frontend, Cloud, and Product stakeholders

Optional

  • Experience with data pipelines or data-intensive applications
  • Experience working with AI/ML-oriented systems, including inference endpoints, model-serving components, or LLM-based workflows
  • Experience with Snowflake or similar cloud data platforms
  • Familiarity with SAP-related interfaces or enterprise integration technologies such as OData, APIs, IDoc, RFC, or BAPI
  • Experience with Docker and containerized application delivery
  • Experience with CI/CD pipelines and automated deployment practices
  • Knowledge of secure API design, authentication, and authorization patterns
  • Experience with data visualization in React or other frontend technologies for presenting AI/ML outputs to end users

Your responsibilities

  • Design, develop, and maintain full stack solutions using Python and React
  • Develop and maintain backend services and RESTful APIs using Python
  • Build modern, responsive, and user-friendly React applications
  • Integrate frontend applications with backend APIs and AI-driven functionality
  • Collaborate with Data Scientists to understand exploratory POCs, models, and notebooks
  • Transform experimental data science code and notebooks into production-ready, maintainable systems
  • Refactor and productionize exploratory code, including Streamlit applications, scripts, and prototypes
  • Implement scalable and maintainable backend business logic
  • Contribute to technical design decisions across both backend and frontend architecture
  • Collaborate with Cloud Engineers on deployment setup, runtime architecture, environment configuration, and CI/CD
  • Support data-intensive application workflows and system integrations
  • Ensure application components meet requirements for security, observability, scalability, and operational supportability
  • Participate in testing, troubleshooting, performance optimization, and continuous improvement
  • Work closely with Data Scientists, AI Engineers, Cloud Engineers, Product Owners, and other developers
Company

About the project

At Cyclad, we work with top international IT companies to help them deliver cutting-edge technologies that shape the future. We are currently looking for an experienced Senior Fullstack Developer to join an international team working on a state-of-the-art AI-enabled application.
In this role, you will work across the full technology stack, developing backend services and APIs using Python and modern frontend applications using React. You will contribute to transforming exploratory Proof-of-Concepts developed by Data Scientists into robust, scalable, production-ready solutions while working with Generative AI, Large Language Models (LLMs), cloud-native architectures, and intelligent process automation.
The application digitalizes and automates procurement and sourcing processes using modern AI capabilities to deliver business value at scale. You will collaborate closely with Data Scientists, AI Engineers, Cloud Engineers, Product Owners, and other Backend and Frontend Developers to build innovative end-to-end solutions.
Project information:
Type of project: IT services
Office locations: Gdańsk, Poznań, or Wrocław, Poland
Work model: Hybrid – 2 days per week in the office, 3 days remotely
Budget: 100–160 PLN net/hour – B2B
Project length: Long-term
Start date: ASAP (depending on the candidate's availability)
Seniority level: Senior
Only candidates with citizenship in the European Union and residence in Poland

What we offer

  • Hybrid working model with 2 days per week in the office
  • Full-time cooperation agreement based on B2B
  • Private medical care with dental care (covering 70% of costs)
  • Multisport card (also for an accompanying person)
  • Life insurance
  • Opportunity to work on innovative AI-powered solutions in an international IT environment

Benefits

  • sharing the costs of sports activities
  • private medical care
  • life insurance
  • remote work opportunities
  • flexible working time
  • integration events
  • dental care
  • no dress code

Recruitment stages

  • 1.
    Introductory call
  • 2.
    Technical interview
  • 3.
    Final decision

Cyclad

In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting edge technologies that shape the world of the future.

This is how we work

Senior Fullstack Developer (Python + React)
100–160 zł / hr. (B2B)
I apply to:
Cyclad
Gdańsk, Pomeranian
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