Full-Stack Developer

Summary

Join Xfive as a talented Full-stack Developer (Node.js + React) and collaborate directly with clients. This mid/senior-level role offers freelance opportunities with hourly rates between 25 and 35 USD. Enjoy the freedom of flexible work arrangements, choosing your workspace and schedule. Benefit from opportunities for professional growth, diverse projects, and a supportive, collaborative team environment. We offer transparency, social events, and a commitment to helping you thrive.

Requirements

• At least 4 years of commercial experience with React and Node.js
• Good verbal and written communication skills in English (at least B2 level)
• Ability to communicate directly with clients during online meetings
• Experience in integrating applications with third-party APIs
• Strong understanding of object-oriented programming principles
• Medium/advanced relational databases design knowledge
• Ability to write unit, integration, and other tests
• Extensive Git knowledge
• Availability of at least 20 hours a week

Responsibilities

• Collaborate directly with clients
• Develop full-stack applications with accessibility considerations
• Integrate applications with third-party APIs
• Design medium/advanced relational databases
• Write unit, integration, and other tests
• Utilize Git for version control

Preferred Qualifications

• Experience with GraphQL
• Experience with MongoDB
• Experience with Jest
• Experience with Next.js
• Experience with Ruby on Rails
• Experience with Python (Django)
• Knowledge about the security of web applications
• TDD/BDD experience
• Knowledge of performance optimization of applications
• Familiarity with AWS, Google Cloud
• Familiarity with platforms like Heroku, Vercel
• Familiarity with GitLab CI or other CI systems
• Basic knowledge of Linux system administration and project deployment

Benefits

• Freelance opportunity: Earn between 25 and 35 USD per hour
• Room to grow: Support in learning new skills and career advancement
• Make an impact: Influence company direction and drive meaningful change
• Diverse projects: Work on interesting projects from various companies
• Work your way: Work from home, a coffee shop, or the Cracow office
• Set your schedule: Flexible work hours with team and client overlap
• Transparency: Open communication about company decisions and direction
• We’ve got your back: Team support for problem-solving and brainstorming
• Great vibes: Collaborative and fun work environment
• Stay connected: Social events (online and in-person)