Java Backend Developer

Quick Facts

• Role: Java Backend Developer

• Focus: Microservices for home EV charging (order, installation, charging flow, energy/cost calculations, and billing)

Description

Develop and maintain Java microservices based on Clean Architecture, emphasizing readability, testability, and maintainability. Build features for users, email communication, and APIs for the frontend, implement charging fees and billing rules, and adapt the system for new markets.

Responsibilities

• Develop and maintain Java microservices using Clean Architecture

• Implement user-related areas, email communication, and frontend-facing APIs

• Make independent technical decisions and participate in code review

• Build and evolve charging fee calculation and billing logic (business rules)

• Adapt the system for new markets

Requirements

• Minimum 5 years of experience working with Java

• Experience with distributed systems and microservices

• Advanced English (C1)

• Knowledge of Clean Architecture

• Commercial experience with AWS

Benefits

• Project-based B2B collaboration with milestone-based payments and acceptance protocols

• Opportunity to attend industry events and technology meetups

• Support with administrative and settlement tasks related to the collaboration

• Flexible hybrid model: about 2 onsite coordination meetings per week in Warsaw with the rest remote