Senior Python/React Fullstack Developer – Product Maintenance & Support
Offer summary

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

The project involves maintenance and development of a Python and React-based product in the financial sector. It requires 6+ years as a Full Stack Developer with knowledge of databases and Azure. Key responsibilities include supporting, enhancing, and expanding an existing system, troubleshooting, implementing UI/UX improvements, and collaborating with stakeholders. Offered benefits include medical care, Multisport program, Pluralsight access, and flexible working hours.

you can start ASAP

Senior Python/React Fullstack Developer – Product Maintenance & Support

Company: ITDS Polska Sp. z o.o.

from: 2 June 2026
to: 2 July 2026
25 200 - 31 500net (+ VAT)/ mth.B2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian

Requirements

Expected technologies

Python
React.js
Microsoft Azure

Operating system

Windows

Our requirements

  • 6+ years of experience as a Full Stack Developer / Engineer.
  • Hands-on experience with Python on the backend.
  • Strong experience with React on the frontend.
  • Basic to solid understanding of databases and cloud environments, preferably Azure.
  • Knowledge of the software development lifecycle from both frontend and backend perspectives.
  • Experience maintaining and improving existing products rather than only building from scratch.
  • Ability to identify issues, debug effectively, and deliver clean, practical fixes.
  • Strong problem-solving skills with a product-minded approach.
  • Sensitivity to UI/UX and user needs.

Optional

  • Experience working on client-facing internal tools or single-client environments.
  • Enthusiasm for AI and understanding of how it works.
  • Exposure to product support, user onboarding, or post-launch optimization.
  • Familiarity with feature request handling and iterative product improvements.
  • Knowledge of cloud-based architecture in Azure.

Your responsibilities

  • Support ongoing development and maintenance of an existing software product.
  • Troubleshoot and resolve bugs reported during onboarding and daily usage.
  • Implement UI/UX improvements and new features based on user feedback.
  • Work across backend and frontend layers to ensure seamless functionality.
  • Collaborate with stakeholders to understand issues, prioritize improvements, and deliver practical solutions.
  • Help onboard new users by maintaining platform stability and efficiency.
  • Contribute to continuous code quality, usability, and performance enhancements.

About the project

As a Senior Full Stack Developer, you will be working for our client, a leading software environment where your expertise directly impacts a live, client-specific solution. You’ll support, enhance, and maintain an established product, ensuring it remains robust, user-friendly, and scalable as new users and needs emerge. This role offers a unique chance to contribute to a mission-critical platform while advancing your career in a dynamic, innovative environment.
Unleash your full potential — elevate a live product by supporting, refining, and evolving real-world solutions!
EU-based opportunity with a fully remote work model (5 days/week).
Only candidates with an existing legal right to work in the European Union will be considered for this role.

This is how we organize our work

This is how we work

at the client's siteagilescrum

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.
We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

📌 You can report violations in accordance with ITDS’s Whistleblower Procedure available here: https://itds.pl/wp-content/uploads/2025/03/INFORMATION-ON-PROCEDURE-FOR-REPORTING-BREACHES-AND-PROTECTION-OF-WHISTLEBLOWERS-AT-ITDS-POLSKA.pdf
Company

What we offer

  • Stable and long-term cooperation with very good conditions
  • Enhance your skills and develop your expertise in the financial industry
  • Work on the most strategic projects available in the market
  • Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years
  • Participate in Social Events, training, and work in an international environment
  • Access to attractive Medical Package
  • Access to Multisport Program
  • Access to Pluralsight
  • Flexible hours

Benefits

  • sharing the costs of sports activities
  • private medical care
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • saving & investment scheme
  • no dress code
  • coffee / tea
  • drinks
  • christmas gifts
  • birthday celebration
  • sharing the costs of a streaming platform subscription
  • access to +100 projects
  • access to Pluralsight

Recruitment stages

  • 1.
    online interview
  • 2.
    online interview

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.
We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.
We see where banks, insurers, payment companies, or fintech can go and how they can get there.
That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.
ITDS in Poland - Pure player in new Technologies & Financial Industry
+300 IT implementation professionals
+20 clients in the Banking, Insurance, Payment & Fintech Industry
ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

This is how we work

Senior Python/React Fullstack Developer – Product Maintenance & Support
25.2k–31.5k zł / mth. (B2B)
I apply to:
ITDS Polska Sp. z o.o.
Warszawa, Masovian
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