Fullstack Software Engineer – Python / React

Traffit; Województwo pomorskie; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

medical care

life insurance

trainings

Multisport card

Job summary

Traffit is seeking a Fullstack Software Engineer to join an international team developing software for the aviation industry, with Python backend and React frontend. The role covers API design, testing, and delivery in a hybrid setup based in Gdańsk.

You will own features end-to-end, collaborate with product owners, UX designers, and QA, participate in code reviews, and work with Docker, Git, and CI/CD pipelines. A bachelor’s degree and at least 2 years of experience are required.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, Mathematics, Data Science or a related technical field.
• Minimum 2 years of professional software development experience.
• Experience with React or another modern frontend framework.
• Experience with a Python web framework such as FastAPI, Django, or Flask.
• Good knowledge of HTML5 and CSS3.
• Experience with relational or non-relational databases (PostgreSQL, Oracle, MongoDB).
• Experience with unit and integration testing (pytest, Jest, Testing Library, Cypress).
• Experience with Git and code review workflows.
• Experience with Docker and containerized development environments.
• Knowledge of CI/CD and test automation.
• Experience with Kubernetes or Helm is a plus.

Responsibilities

• Design, develop, test, and maintain backend services using Python and modern web frameworks.
• Own features end-to-end from design to delivery.
• Build and integrate RESTful APIs.
• Write and maintain unit and integration tests for frontend and backend.
• Participate in code reviews and share best practices.
• Collaborate with product owners, UX designers, backend developers, and QA.
• Work with Git, CI/CD pipelines, and standard branching workflows.
• Work in Docker-based development environments and collaborate with DevOps/OS teams.
• Contribute to sprint planning, estimation, technical discussions, and continuous improvement.

Skills

Fluent English

React

Python web frameworks

HTML5/CSS3

Databases (PostgreSQL/MongoDB)

Testing (pytest/Jest)

Docker

CI/CD

Git workflows

Code reviews

Education

Bachelor’s degree in Computer Science, Engineering, Mathematics, Data Science or related technical field

Tools

Docker

Kubernetes

Git

CI/CD pipelines

PostgreSQL

MongoDB

FastAPI/Django/Flask

Testing libraries (Jest/Testing Library/Cypress)

Job description

Fullstack Software Engineer – Python / React

Join an international engineering team developing software for the aviation industry. The team works on advanced systems and electronic solutions supporting aircraft, including navigation, flight controls, and information systems.

Key responsibilities

• Design, develop, test, and maintain backend services using Python and modern web frameworks
• Own features end-to-end, from design and implementation through testing and delivery
• Build and integrate RESTful APIs
• Write and maintain unit and integration tests across frontend and backend
• Participate in code reviews and share best practices with other engineers
• Collaborate with product owners, UX designers, backend developers, and QA
• Work with Git, CI/CD pipelines, and standard branching and merge request workflows
• Work in Docker-based development environments and collaborate with DevOps/OS teams
• Contribute to sprint planning, estimation, technical discussions, and continuous improvement
• Bachelor’s degree in Computer Science, Engineering, Mathematics, Data Science or a related technical field
• Minimum 2 years of professional experience in software development
• Experience with React or another modern frontend framework
• Experience with a Python web framework such as FastAPI, Django, or Flask
• Good knowledge of HTML5 and CSS3
• Experience with relational or non-relational databases, such as PostgreSQL, Oracle, or MongoDB
• Experience with unit and integration testing, using tools such as pytest, Jest, Testing Library, or Cypress
• Experience with Git and code review workflows
• Experience with Docker and containerized development environments
• Knowledge of CI/CD and test automation
• Experience with Kubernetes or Helm is a plus
• Experience participating in technical design discussions or mentoring other engineers is a plus
• Experience working in international and multicultural teams
• Fluent English with strong communication skills

Conditions

• Work model: hybrid in Gdańsk (2xweek)
• Employment type: UoP
• Salary: to be discussed depending on experience
• Benefits: medical care, life insurance, trainings, Multisport card

At KUBO, we genuinely care about people. We welcome candidates of all ages, backgrounds, identities, family constellations, health situations, and ways of thinking and interacting with the world. You’re welcome to be yourself — we value authenticity, and we’re committed to creating a fair and inclusive process for everyone.