Senior Java Developer (AI-First / AWS Serverless)

Location: Remote from any location except Russia and Belarus; working hours aligned with CET/CEST.

Company

Software development company with 30 years of experience building custom high-load systems, AI and BI solutions, and mobile applications.

What you will do

• Develop and maintain shared platform services, including SSO, tenant and user management, notifications, file storage, audit logs, and feature flags.
• Orchestrate tenant, region, and shared infrastructure provisioning and updates through the Control Plane.
• Manage AI coding agents such as Claude Code and Codex by assigning tasks, reviewing generated code, and updating prompts and instructions.
• Own quality end to end by writing unit, integration, and E2E tests and independently verifying features in production.

Requirements

• 6+ years of commercial experience with Java, Python, or C#/.NET.
• Experience building serverless applications on AWS using Lambda, Step Functions, EventBridge, SQS/SNS, S3, and KMS.
• Knowledge of Gradle, including large multi-module builds, Dagger, event-driven patterns, and multi-tenant SaaS architecture.
• Deep understanding of Terraform and GitHub Actions CI/CD.
• Hands-on experience with AI agents for code generation, or strong willingness to develop this skill.
• Experience with JUnit, Testcontainers/LocalStack, PITest, Mockito, and WireMock; English at B2+ level.

Culture & Benefits

• Remote work with a flexible schedule.
• Collaboration available through a B2B contract with payments in USD or EUR.
• Labor contract option for candidates based in Georgia, Serbia, or Kazakhstan.
• Professional growth opportunities.
• Company laptop provided.