Python FullStack Developer

Jit Team; Warszawa; Hybrid; PLN 203,000 - 240,000; Full time

Benefits offered by this job

Flexible work organization

Job summary

Jit Team is seeking a forward-thinking developer to collaborate with Product Owners, Solution Architects, and Analysts to transform business requirements into scalable Python-based software. You will focus on data transformations, AI-driven enrichment, and building microservices with modern deployment practices.

Expect to work with APIs, databases, and various integrations in a multicultural, international team.

Qualifications

• LangChain and RAG experience.
• Advanced knowledge in Python development and configuration.
• Advanced knowledge of Flask (or similar) frameworks.
• Advanced knowledge of REST APIs.
• Intermediate LLM experience.
• Intermediate Docker experience.
• Intermediate JavaScript experience.
• Intermediate knowledge of PostgreSQL and SQLAlchemy.
• Familiarity with React.
• Familiarity with CSS and SCSS.
• Ability to write tests (pytest).
• Experience with CI/CD and creating pipelines.
• Experience with Git.

Responsibilities

• Develop and maintain scalable applications, APIs, and microservices using Python and modern frameworks.
• Collaborate with Product Owners, Architects, and Analysts to transform business requirements into technical solutions.
• Build and optimize data integrations, transformation processes, and AI-powered data enrichment capabilities.
• Ensure data quality, consistency, and reliability across databases, APIs, and enterprise systems.
• Develop and maintain CI/CD pipelines, automated tests, and deployment processes.
• Support the adoption of AI, automation, and engineering best practices to improve business processes and software quality.
• Work closely with stakeholders in an international environment to deliver efficient and innovative solutions.

Skills

Python

REST APIs

LLM / AI

CI/CD

Docker

SQLAlchemy

PostgreSQL

Flask

TypeScript

React

Git

Kubernetes

LangChain

Tools

Docker

Kubernetes

Git

SharePoint API

Artifactory (JFrog)

AWS

PostgreSQL

SQLAlchemy

React

Job description

Salary: 1100-1300 PLN/day on B2B
Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office)

Why choose this offer?

• You can expect a flexible work organization
• The international work environment will give you the opportunity to interact with the English language on a daily basis
• Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)
• The Jit community will bring you a nice time during regular integration meetings

Project

We are looking for a forward leaning developer to work closely with Product Owners, Solution Architects and Analysts to refine epics, user stories and business requirements into technical design and working software, with high development standards and to implement some of the industry best practices.

Key topics in scope include data transformation as well as AI driven data enrichment, where the overall solution objective is to overlook that all parties involved act according to rules and regulations. And importantly, that this is done as efficiently as possible using modern ways of automation, including but not limited to AI.

This involves building data integrations and data transformation logic, reading from and writing to various databases and APIs, securing data completeness and data reconciliations, building microservices and deployment pipelines, and utilizing LLMs both in the actual solutions (e.g. data enrichment) and for support in your role as developer.

Responsibilities You’ll Have

• Develop and maintain scalable applications, APIs, and microservices using Python and modern frameworks.
• Collaborate with Product Owners, Architects, and Analysts to transform business requirements into technical solutions.
• Build and optimize data integrations, transformation processes, and AI-powered data enrichment capabilities.
• Ensure data quality, consistency, and reliability across databases, APIs, and enterprise systems.
• Develop and maintain CI/CD pipelines, automated tests, and deployment processes.
• Support the adoption of AI, automation, and engineering best practices to improve business processes and software quality.
• Work closely with stakeholders in an international environment to deliver efficient and innovative solutions.

To succeed in this role, we believe that a candidate:

• is a team player who enjoys collaboration in a multicultural environment
• has a genuine interest to learn and develop within the area
• is appreciated for your positive approach and ability to turn challenges in to opportunities
• is good at engaging stakeholders at different levels
• is a skilled engineer at heart with passion for developing solutions and take pride in seeing your efforts paying off in form of a great business application

Expected competences and knowledge

• LangChain and RAG experience
• Advanced knowledge in Python development and configuration
• Advanced knowledge of Flask (or similar) frameworks
• Advanced knowledge of REST APIs
• Intermediate LLM experience
• Intermediate Docker experience
• Intermediate JavaScript experience
• Intermediate knowledge of PostgreSQL and SQLAlchemy
• Familiarity with React
• Familiarity with CSS and SCSS
• Ability to write tests (preferably with pytest)
• Experience with CI/CD and creating pipelines
• Experience with Git

Technologies you’ll work with

• Experience with AI tooling
• Familiarity with TypeScript
• Familiarity with web components
• Familiarity with Redux/Zustand
• Experience with SharePoint API
• Experience with Artifactory (JFrog)
• Experience with Kubernetes
• Experience with cloud services (AWS)

Client – why choose this particular client from the Jit portfolio?

Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.