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Senior/Lead JavaScript Developer
JavaScript

Senior/Lead JavaScript Developer

Warszawa
7 571 - 8 948 USD/monthNet per month - B2B
7 571 - 8 948 USD/monthNet per month - B2B
Type of work
Full-time
Experience
Senior
Employment Type
B2B
Operating mode
Hybrid
Spyrosoft

Spyrosoft

Spyrosoft is an authentic, cutting-edge software engineering company, established in 2016. We have been included in the Financial Times ranking of 1000 fastest growing companies for three consecutive years: 2021, 2022 and 2023.

Tech stack

    TypeScript

    advanced

    Node.js

    advanced

    Redux

    advanced

    React

    advanced

    JavaScript

    advanced

    AWS

    regular

    SQL

    regular

    Webpack

    regular

    Yarn

    regular

    NoSQL

    regular

Job description

Online interview

Join our team in Warsaw, where we’re collaborating on a cutting-edge fintech venture with a global industry leader. Together with our Partner – Klarna, we’re building an IT hub designed to drive innovation in digital payment solutions. We’re on the lookout for top-tier engineers who thrive in dynamic, forward-thinking environments. Spyrosoft is leading the recruitment process, facilitating a seamless experience for candidates who are ready to shape the future of online shopping and payments.


This opportunity is ideal for engineers who value independence, proactiveness, and flexibility. Our engagement begins with a B2B contract through Spyrosoft, transitioning to a direct contract with our Partner.


We offer a hybrid work model in Warsaw’s vibrant Wola district. English fluency and eligibility to work in Poland are essential, as is the successful completion of a background check to meet the rigorous standards of the financial domain.


Our process:

  1. CV selection
  2. Initial recruitment screening
  3. Technical interview
  4. Online logic test
  5. Cultural fit interview



Requirements:

  1. Minimum 5 years of experience in JavaScript/TypeScript
  2. Proficiency with React.js (front-end) and Node.js (back-end), Redux (state management), Context API, Hooks
  3. CI/CD experience, experience with npm or yarn, familiarity with Webpack, Babel
  4. Experience with NoSQL databases (MongoDB, Firebase), SQL, handling databases in backend systems using Node.js
  5. Familiarity with serverless architecture (e.g. AWS)
  6. Frontend: Focus on scalability, performance, state management, and API integration in React.js
  7. Backend: Focus on designing scalable, event-driven systems with Node.js
  8. Discuss approach to debugging, refactoring, and writing clean, testable code
  9. Experience with AWS services and cloud infrastructure
7 571 - 8 948 USD/month

Net per month - B2B