Java Developer – Backend & Integrations

About the role

Ajax Systems, Europe’s largest security system manufacturer, is seeking a smart, experienced Java Developer to join its Kyiv office. You will work on backend and full‑stack services, extending existing Java applications and building integrations with third‑party platforms.

Required profile

• 3+ years of backend or full‑stack development with Java.
• Solid understanding of Java services and ability to read and extend existing code.
• Experience building integrations with third‑party APIs such as Google Workspace, Atlassian, and GitHub.
• Familiarity with webhook‑based and event‑driven integration patterns.
• Understanding of CI/CD pipelines and release management concepts.

Required skills

• Java
• Google Workspace API
• Atlassian API
• GitHub API
• Webhook and event‑driven integration
• CI/CD pipelines
• Release management
• Python (scripting, REST APIs, automation)
• Google Chat API
• Confluence / Jira API
• iOS / Swift basics
• Grafana, Prometheus
• PostgreSQL, SQLite
• Jenkins, GitHub Actions, ArgoCD

What we offer

• Opportunity to share and implement your own ideas impacting products and production.
• Work with a motivated team in a zero‑bullshit culture.
• Competitive salary.
• Medical insurance.
• Corporate English classes.