Remote Backend Architect for Scalable APIs

Fyerx; Poland; Remote; PLN 83,000 - 165,000; Full time

Job summary

FyerX is seeking a skilled Backend Developer for an hourly remote freelance role. You will architect and implement scalable server-side logic, design RESTful APIs and GraphQL endpoints, and manage SQL and NoSQL databases across internal systems and client projects.

The role requires 3+ years in backend development, proficiency in Node.js, Python, Java, Ruby, or PHP, and hands-on cloud (AWS/GCP/Azure) and containerization experience. Strong problem-solving and collaboration are essential.

Qualifications

• 3+ years of professional backend development experience.
• Proficiency in at least one backend language and its framework.
• Experience with SQL and NoSQL databases and data modeling.
• Cloud infrastructure experience (AWS/GCP/Azure) and containerization (Docker/Kubernetes).
• Strong focus on clean, modular code and technical documentation.
• Excellent remote collaboration and time-management skills.

Responsibilities

• Architect, develop, and maintain robust server-side logic and database structures.
• Design and implement scalable RESTful APIs and GraphQL endpoints.
• Manage relational and NoSQL databases for efficient storage and querying.
• Implement security, authentication, and authorization (OAuth, JWT).
• Collaborate with frontend, DevOps, and PMs; troubleshoot performance bottlenecks; deploy via CI/CD.

Skills

Backend development

RESTful APIs

GraphQL

SQL/NoSQL databases

Node.js

Python

Java

Ruby

PHP

Express

Django

Spring Boot

PostgreSQL

MySQL

MongoDB

AWS

Google Cloud

Azure

Docker

Kubernetes

OAuth

JWT

CI/CD

Tools

Docker

Kubernetes

PostgreSQL

MySQL

MongoDB

Express

Django

Spring Boot

Job description

FyerX is seeking a skilled Backend Developer for an hourly remote freelance role. You will architect and implement scalable server-side logic, design RESTful APIs and GraphQL endpoints, and manage SQL and NoSQL databases across internal systems and client projects.

The role requires 3+ years in backend development, proficiency in Node.js, Python, Java, Ruby, or PHP, and hands-on cloud (AWS/GCP/Azure) and containerization experience. Strong problem-solving and collaboration are essential.