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Proxify AB: Senior Fullstack Developer (React.js & Node.js)

Flexible location
Company: Proxify
Published Dec 15, 2025

Role highlights

Contract type

Full Time

Schedule

Permanent

Experience

Senior

Work style

Remote

Key skills

This Senior Fullstack Developer role requires over 5 years of professional experience specializing in React.js for frontend development and Node.js for backend services, emphasizing microservices architecture. The candidate must have strong proficiency in building reusable libraries and frameworks, focusing on creating low-latency, stable, and high-performance applications. Experience with both SQL and MongoDB databases is essential, along with knowledge of database architecture considered a plus. The role involves implementing data protection systems and working with various data storage solutions, highlighting a need for secure and efficient data handling. Effective remote collaboration skills and intermediate to advanced English communication abilities are necessary to work with distributed teams and stakeholders. The position suits candidates located within the CET timezone or nearby for better alignment with team schedules. The educational requirement is a bachelor's degree, supporting a solid foundation in computer science or related fields. This opportunity offers consistent working hours, flexible leave policies, and a streamlined contracting process, ideal for developers seeking career growth in cutting-edge environments. Overall, the role demands a seasoned fullstack developer with a robust technical stack including React.js, Node.js, microservices, SQL, MongoDB, and a strong focus on code quality, performance optimization, and secure data management.

#Software Engineer #Frontend Developer #Backend Developer #Fullstack Developer #Web Developer #Microservices Developer #Database Developer #Node.js Developer #Senior Fullstack Developer #React.js Developer

About the role

Headquarters: Sweden
URL: http://career.proxify.io

Role Summary

We are seeking a Senior Fullstack Developer skilled in React.js and Node.js for one of our clients. Ideal candidates are growth-oriented, passionate about their work, and enjoy developing new ideas and products.

Requirements

  • 5+ years experience as a Fullstack Developer
  • Backend experience with Node.js and microservices architecture
  • Database experience with SQL and MongoDB
  • Intermediate-advanced English proficiency

Nice to Have

  • Located in CET timezone (+/- 3 hours)
  • Knowledge of database architecture

Responsibilities

  • Build libraries and frameworks of reusable, efficient code
  • Design and implement low-latency, stable, and high-performing applications
  • Collaborate effectively with team members and stakeholders remotely
  • Implement data protection systems
  • Work with data storage solutions

Benefits

  • On-time monthly payments with flexible withdrawal options
  • Predictable project hours: consistent 8-hour working days
  • Up to 24 flex days off per year for full-time positions
  • Career-accelerating positions at cutting-edge companies
  • Hand-picked, personally matched opportunities
  • One seamless contracting process for multiple opportunities
  • Consistent monthly pay for positions landed through Proxify

How to Apply

Apply here

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