Senior Java Backend Architect (Remote)

Fyerx; Poland; Remote; PLN 180,000 - 260,000; Full time

Job summary

FyerX is seeking an experienced Java Developer to architect, build, and maintain scalable backend systems. You’ll design high-performance RESTful services, manage relational and NoSQL databases, and ensure security and reliability across enterprise platforms.

You will collaborate with frontend, DevOps, and stakeholders to optimize performance, implement CI/CD, and deliver robust solutions for internal engines and client integrations.

Qualifications

• 3+ years of professional Java development experience with a proven track record of building, testing, and deploying secure, high-volume server-side systems.

Responsibilities

• Architect, develop, and maintain secure, highly scalable Java-based applications and microservices for internal ops and client platforms.

Skills

Java

Microservices

REST APIs

Spring Boot

Hibernate

Cloud AWS/GCP/Azure

Kafka

Docker

Kubernetes

CI/CD

JUnit/Mockito

SQL/NoSQL

Tools

PostgreSQL

Oracle

MongoDB

Git

Docker

Kubernetes

Kafka

RabbitMQ

AWS

Google Cloud

Azure

Spring Framework

Job description

FyerX is seeking an experienced Java Developer to architect, build, and maintain scalable backend systems. You’ll design high-performance RESTful services, manage relational and NoSQL databases, and ensure security and reliability across enterprise platforms.

You will collaborate with frontend, DevOps, and stakeholders to optimize performance, implement CI/CD, and deliver robust solutions for internal engines and client integrations.