Senior Backend Java Developer Hanna Robulets Company to $5000

Madfish

Madfish

Software Engineering

Europe

USD 5k-5k / month

Posted on May 25, 2026

About the project

Israeli agrotech product company is scaling rapidly from 60k to 250k+ users and looking for experienced backend engineers to improve infrastructure scalability and system reliability.

The team is currently focused on scalability challenges, backend optimization, and future AI-ready data collection.

Open Roles

  • 1x Team Lead
  • 2x Senior Backend Developers

Tech Stack

  • Java
  • Cassandra
  • MySQL → Aurora
  • Elasticsearch / OpenSearch

Requirements

  • Strong commercial experience with Java backend development
  • Experience designing scalable distributed systems
  • Experience with high-load infrastructure
  • Strong database expertise:
    • Cassandra
    • MySQL/Aurora
  • Experience with Elasticsearch/OpenSearch
  • Understanding of scalability and performance optimization
  • English — B2+

Will be a plus

  • Experience with messaging systems
  • Experience with WhatsApp/Facebook APIs
  • AI/analytics-oriented data architecture experience

Responsibilities

  • Improve backend scalability and reliability
  • Optimize infrastructure for rapid user growth
  • Design scalable backend services
  • Work on messaging and communication systems
  • Build systems for future AI data analysis
  • Collaborate with cross-functional engineering teams