Staff Crawling Engineer (Node.js)

Location: Belgrade, hybrid with remote work and occasional office days

Company

hirify.global provides data, software, AI, and consulting solutions for healthcare and life sciences companies through its Smile BI Devs software and analytics unit.

What you will do

• Design, build, and maintain Node.js crawling and data-collection services for static, dynamic, and JavaScript-rendered websites.
• Develop crawling processes with concurrency control, scheduling, retries, monitoring, rate limits, and failure recovery.
• Integrate crawling services with Kafka and downstream data-processing systems.
• Ensure the completeness, consistency, timeliness, and quality of collected data.
• Diagnose production failures, website changes, and performance issues.
• Contribute to architecture, code reviews, technical standards, documentation, testability, and mentoring.

Requirements

• 10+ years of professional software-engineering experience or equivalent Staff-level capability.
• Substantial experience building and operating production web crawlers, web-scraping systems, or comparable data-acquisition services.
• Advanced Node.js and JavaScript skills, including asynchronous programming, concurrency, and event-driven processing.
• Strong knowledge of HTTP, HTML, DOM structures, APIs, and dynamically rendered websites.
• Experience with browser automation using Puppeteer, Playwright, or Selenium.
• Experience with SQL, relational databases, Git, Linux, Docker, and reliable production processes.
• Professional working proficiency in English.

Nice to have

• TypeScript or Python experience.
• Kafka and PostgreSQL experience.
• Knowledge of CI/CD, monitoring, alerting, and observability.
• Experience with proxy management, access restrictions, resilient browser automation, international websites, multilingual data, or e-commerce datasets.

Culture & Benefits

• Flexible remote setup with occasional office days and workspace access.
• Flexible working hours supporting collaboration and focused work.
• Private healthcare insurance.
• €1,000 annual training budget.
• 35 days of annual leave.
• Paid parking, office kitchen, and a dog-friendly workplace.