*instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.

*instinctools is looking for a Senior/Lead React Developer for one of our clients. 

Our Client is one of the TOP-3 global management consulting firms considered to be among the most prestigious ones in the world. Hundreds of customers from Fortune-500, including the largest global financial institutions, the world’s top media companies, technology companies and federal government agencies rely on our Client’s proven platform and services.

Project – the main goal of the project is to provide analysis data by more than 10000 metrics for companies, industries and market in form of charts and tables. Provide information about recent events and news for companies. Data could be filtered by different metrics to provide user desired form and amount of data. Allows to download data in form of PDF, PPT and Excel format. Project has strong development and design team.

Stack on the project: React, TypeScript, JoyUI, Recharts

Your responsibilities:
  • Architectural Oversight:
    Design and oversee the overall software architecture, ensuring it meets the project’s long-term requirements for scalability, maintainability, and performance. Define and implement best practices for using micro frontend architecture to ensure modular and decoupled design principles.
  • Technology Leadership:
    Evaluate and introduce new technologies and tools to enhance the application’s capabilities and improve the development workflow.
  • Code Review and Quality Assurance:
    Ensure high standards of code quality and reliability through rigorous code review processes. Implement and oversee best practices for testing, including unit, integration, and end-to-end tests.
  • Performance Optimization:
    Lead efforts to optimize the application for performance, particularly focusing on efficient data handling, rendering large datasets, and improving the end-user experience. Analyze existing system bottlenecks and propose solutions to improve responsiveness and efficiency.
  • Risk Management:
    Identify potential technical risks and develop mitigation strategies to address them before they impact the project timeline or performance.
  • Collaboration and Communication:
    Serve as the technical point of contact for other teams, including backend, design, and product management, to ensure a cohesive and integrated approach to project development.
  • Innovation and Research:
    Encourage and lead research into innovative technologies and methods that could benefit the project. Stay abreast of industry developments and how they can be applied to current and future projects.

Our expectations of the ideal candidate: 


  • 5+ years of software development experience with ReactJS, TypeScript;
  • Working experience with React-Query, React-Table, React-Window;
  • Working with MUI – JoyUI, Recharts, Module Federation and Nx will be a plus;
  • Fundamental understanding of micro frontend architecture; 
  • Developing new features and fixing existing ones, code review;

Upper-Intermediate English level (or higher)

Soft Skills:

  • Prefer problem-solving style over experience
  • Ability to clarify requirements with the customer
  • Willingness to pair with other engineers when solving complex issues
  • Good communication skills

We offer:

  • flexible working time
  • professional and ambitious team
  • learning opportunities, seminars and conferences and time for exploring new technologies
  • full remote work
  • partial compensation of medical insurance (Luxmed) and multisport card
  • co-funding for language courses  (Polish and English)
Yanina Sushkova
Yanina Sushkova Recruiter
We will be glad to see you in our team!

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    *instinctools is a developer of IT solutions for Western Europe. We have over 350 projects in our portfolio. The spheres are different – from healthcare and medicine, training and education, to digital advertising, economics and IT. For the software implementation and maintenance across such a number of projects, competent developers are important.

    We use a modern technology stack, the key of which are:

    Javascript, ReactJS, Angular, Node.js, Golang, Python, Java, iOS, Android, Blockchain, AWS.

    Join the *instinctools team!

    *instinctools Poland
    We have had a representative office in Poland (Warsaw) since 2021. Our Polish team consists of highly qualified and experienced specialists – most of them are Middle to Senior level Developers.
    Right now we’re on the lookout for bright and innovative minds to join our professional team!