Senior Full-Stack React and Python Developer — Financial Technology

JavaScript

Senior Full-Stack React and Python Developer — Financial Technology

JavaScript
Centrum, Warszawa

ITDS

Full-time
B2B
Mid
Remote
6 300 - 8 400 USDNet per month - B2B

Job description

Empower innovation at the forefront of financial technology — shape the future of AI-driven investment research!
EU-based opportunity with a remote work model (up to 5 days per week).

As a Senior Full-Stack React and Python Developer, you will be working for our client, a pioneer in building AI-powered infrastructure for investment research. You will contribute to automating expert interviews, managing global expert networks, and delivering critical insights to hedge fund clients under strict compliance standards. Join a growing platform that is redefining data-driven finance and unlock new career heights in a cutting-edge environment.

Your main responsibilities:

  • Build and iterate on React-based frontend features for our web application.
  • Develop and maintain backend services in Python and/or Node.js.
  • Integrate frontend components with REST APIs and data services.
  • Participate in code reviews and promote engineering best practices.
  • Debug issues across the entire stack—from UI rendering to API behavior.
  • Collaborate with design and product teams to implement clean, user-friendly interfaces.

You're ideal for this role if you have:

  • At least 6 years of experience as a Full-Stack Developer, ideally within fintech or data-heavy environments.
  • Strong React experience with modern hooks-based development.
  • Backend development experience in Python and/or Node.js.
  • Comfort working across the full stack and owning features end-to-end.
  • Solid understanding of REST APIs and state management patterns.
  • Clean coding habits and familiarity with code review processes.

It is a strong plus if you have: (optional)

  • Experience with TypeScript on both frontend and backend.
  • Knowledge of cloud deployment platforms such as Azure or AWS.
  • Background in financial technology, data-intensive applications, or compliance-focused products.
  • Experience with testing frameworks like Jest or Pytest.

Language Required for the role:

  • Fluent English

Eligibility for the role:

  • Only candidates with an existing legal right to work in the European Union will be considered for this role.

#MAKEYourCareerBETTER
Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

Tech stack

    English

    B2

    full-stack development

    advanced

    REST APIs

    advanced

    React

    advanced

    JavaScript

    advanced

    Python

    advanced

    Node.js

    regular

    AWS

    nice to have

    TypeScript

    nice to have

    Azure

    nice to have

    Jest

    nice to have

Office location

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