Java Developer (Infrastructure)

Ajax
Kyiv
On-siteCareer-pivot friendly

Who this role is best for

Aimed at mid-level to senior Java developers who have experience with backend systems and API integrations, and are comfortable with event-driven architectures and CI/CD pipelines.

Best fit for

  • Candidates with 3+ years of backend or full-stack development experience and a track record of working with third-party APIs and event-driven systems
    — “3+ years of backend or full-stack development”
  • Individuals who have worked on extending and reading existing Java services in a production environment
    — “ability to read and extend existing services”
  • Professionals familiar with CI/CD pipelines and release management, particularly in infrastructure or integration contexts
    — “Understanding of CI/CD pipelines and release management concepts”

Things to consider

  • The role is based in Kyiv, requiring a candidate with local presence or willingness to relocate
    — “join our team in Kyiv office”
  • The position requires a solid grasp of Java and the ability to modify existing services, not just build new ones
    — “solid understanding, ability to read and extend existing services”

How to stand out

  • Highlight experience with webhook-based and event-driven integration patterns in your resume and interview responses
    — “Familiarity with webhook-based and event-driven integration patterns”
  • Demonstrate your ability to work with a zero-bullshit culture by showcasing efficiency and clarity in past projects
    — “zero-bullshit culture”
  • Emphasize your CI/CD pipeline experience, particularly with release automation tools like Jenkins or GitHub Actions
    — “Familiarity with release automation tools (e.g. Jenkins, GitHub Actions, ArgoCD)”
Pace · SteadyCollaboration · MediumAutonomy · MediumDecision Impact · Individual

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Build integrations with third-party APIs
  • Understand CI/CD pipelines
  • Extend existing services
Typical background
3+ years of backend or full-stack development

Skills & requirements

Required

JavaBackend DevelopmentThird-party API IntegrationsCi/cd Pipelines

Preferred

PythonGoogle Chat APIConfluence / Jira API IntegrationsIos / Swift BasicsGrafanaPrometheusPostgresql / SqliteRelease Automation Tools

Stack & domain

JavaBackend DevelopmentFull-stack DevelopmentThird-party API IntegrationWebhook-based IntegrationEvent-driven IntegrationCi/cd PipelinesRelease ManagementPythonScriptingREST ApisAutomationGoogle Chat APIConfluence APIJira APIIosSwiftGrafanaPrometheusPostgreSQLSqliteRelease Automation ToolsJenkinsGithub ActionsArgocd

About the role

Original posting from Ajax via Lever

Ajax Systems is an international technological company and Europe’s largest security system manufacturer. In addition, the company offers solutions for video surveillance, smart homes, fire detection, and flood prevention. The product portfolio includes 280 wireless and wired devices for security and automation. Today, Ajax protects over 4.5 million users in 187 countries worldwide. 

We are looking for a smart, experienced, and technically proficient Java Developer to join our team in Kyiv office.

Required experience:

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

Nice to Have:

  • Python: strong practical experience (scripting, REST APIs, automation)
  • Google Chat API or similar messaging platform bot development
  • Confluence / Jira API integrations
  • iOS / Swift basics for lightweight internal mobile tools
  • Grafana, Prometheus or similar for internal dashboards
  • PostgreSQL / SQLite for lightweight persistence
  • Familiarity with release automation tools (e.g. Jenkins, GitHub Actions, ArgoCD)

We offer:

  • The opportunity to share and implement your own ideas that could impact products and production
  • Work with a motivated team and an environment with a zero-bullshit culture
  • Competitive salary
  • Medical insurance
  • Corporate English classes

Source: Ajax careers (Lever)

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