Senior Backend Engineer (Java/Kotlin, AI-Assisted Development)

Quick Facts

• Role: Senior Backend Engineer (Java/Kotlin, AI-assisted development)

• Work mode: Remote (occasional on-site planning meetings in Poland)

• Start: ASAP

• Contract: Initial 6-month contract with planned extension (full-time)

• Rate: 140–170 PLN/h

Description

Join a remote backend engineering role to design, develop, and maintain JVM-based services, including systems handling high traffic. You will use AI tools and coding agents to solve technical problems faster, while ensuring code quality and owning architecture, testing, deployments, monitoring, and on-call support.

Responsibilities

• Design, develop, and maintain backend applications in the JVM ecosystem

• Solve technical problems using AI tools and coding agents

• Design application architecture and make technical decisions

• Create and maintain automated tests

• Participate in deployments, monitoring, and keeping applications stable

• Maintain observability, reliability, and performance of services

• Participate in on-call duty and resolve production issues

• Work with the team on services that handle high traffic

Requirements

• Experience at Senior Backend Engineer level

• Very good knowledge of Java or Kotlin and the JVM ecosystem

• Hands-on experience with AI-assisted programming, especially AI coding agents

• Ability to delegate tasks to AI effectively and verify the quality of generated code

• Strong analytical, logical thinking, and problem-solving skills

• Ability to design backend applications independently and make architectural decisions

• Experience with high-traffic applications

• Independence and ownership of the full software lifecycle

Benefits

• Remote work with occasional on-site planning meetings in Poland

• ASAP start

• Initial 6-month contract with planned extension

• Full-time engagement

• Rate: 140–170 PLN/h