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Full Stack JS Developer
Warsaw
Remote
Haptiq is a global technology company dedicated to delivering best in class software and digital solutions engineered to drive profitable and scalable growth for our clients.

Operating as the nexus of portfolio management, growth, and optimization, Haptiq offers SaaS platforms fueled by cutting-edge AI, a comprehensive end-to-end data management platform, and a suite of strategic services.

Among our flagship offerings is Olympus FinTech, a dynamic solution empowering private equity, debt, and CLO managers with customizable and streamlined workflows, robust data management, and sophisticated reporting capabilities.

Complementing this, Zymphony MarTech enhances omnichannel customer acquisition, retention, and lifetime value optimization through a centralized customer data platform.

About the role

Responsibilities:


  • Design, develop, and maintain both front-end and back-end applications using JavaScript technologies, such as React.js, Node.js, and Express.js
  • Develop and maintain REST and GraphQL APIs, ensuring high performance, security, and scalability
  • Implement and manage security protocols, such as authentication/authorization (JWT, OAuth) to ensure data integrity
  • Participate in agile sprints, providing estimates, developing features, and conducting code reviews to ensure code quality and timely delivery
  • Build reusable components and front-end libraries for future use
  • Write unit tests to validate the correctness of your code

Skills and Experience:


  • 4+ years of experience with JavaScript (ES6+) development
  • Hands-on HTML5 and CSS3 experience
  • Understanding of design principles and patterns and their application to JS development
  • Background in API development and routing with Express.js
  • Expert in React.js, including state management with context, hooks, and Redux
  • History with databases such as Postgresql, Mongodb, and Firebase to manage application state
  • Experience with version control and branching using git
  • Experience with data structure libraries
  • Front and back-end architecture experience
  • Experience optimizing browser loading and rendering
  • Experience with bundling and minification tools such as Webpack and Vite

Pluses:


  • Experience with Typescript, Nest.js, Next.js, and Graphql

Benefits

  • Work in a highly professional team. Informal and friendly atmosphere in the team.
  • Ability to work from our comfortable office in Warsaw at Prosta str. 51
  • Paid vacation — 20 business days per year, 100% sick leave payment
  • 5 sick days per year
  • Equipment provision
  • Medical insurance (after the end of the probationary period)
  • Partially compensated educational costs (for courses, certifications, professional events, etc.)
  • Legal and Accounting support
    in Poland
  • English and Polish classes 2 times
    a week (online)
  • Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
Join Haptiq ✨
Leave your CV or contact data here
Iryna Hudozhnikava
Recruiter
iryna.hudozhnikava@onthespotdev.com