StoneX Group Inc. logo

Senior Frontend Software Engineer - React

StoneX Group Inc.

Overview

Join StoneX Group Inc. as a Senior Frontend Software Engineer specializing in React. This is a permanent, full-time position based in Kraków, Poland, with a hybrid work model requiring three days per week in the office. StoneX is a Fortune-100, Nasdaq-listed company connecting clients to global markets through innovation and world-class services.

Position Purpose

As a Senior Engineer at StoneX Payments, you will design, develop, and implement software applications that are key components of our platforms. You will work with React and TypeScript, exercising a high degree of independence and influence over architecture and tech stack decisions. Your role will involve delivering high-quality software aligned with customer needs and business goals, setting standards in a modern and distributed environment, and leading the frontend stack.

Responsibilities

  • Execute the software development life cycle (SDLC) for the team, including estimating, analysis, code design, development, testing, debugging, and maintenance.
  • Implement engineering standards, best practices, and quality assurance procedures.
  • Collaborate with product owners to understand product requirements and translate them into technical stories.
  • Provide technical expertise to analyze complex requirements and break down features into tasks.
  • Ensure the quality of applications and their alignment with technology and product goals.
  • Conduct code reviews and provide constructive feedback.
  • Identify recurring issues and opportunities to improve engineering processes and coding standards.
  • Lead the execution of software solutions and ensure they work well in the operating environment.
  • Participate in strategic implementation regarding technology solutions and platform architecture.
  • Mentor and grow less experienced engineers.

Qualifications

  • 5+ years of software engineering experience, primarily in frontend or full-stack development.
  • Proficiency in React, TypeScript, and unit testing.
  • Experience with GraphQL and cloud providers such as Azure or AWS.
  • Strong coding skills and experience in peer code reviews.
  • Excellent verbal and written communication skills.
  • Experience working in a distributed Lean Agile Scrum Team.
  • Experience in SaaS, Payments, FinTech, or E-commerce is a plus.
  • Experience with Docker, .Net, and GitHub Actions is a plus.

Working Environment

This role is hybrid, with two days working from home and three days in the office located at St. Mogilska 35, Kraków.

Join us in developing the next-generation payments platform and be part of a team that values growth, innovation, and collaboration.

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