Full Stack (Kotlin / React) Engineer

Project Description

Cybersecurity platform focused on attack simulation, vulnerability detection, and security validation.

Requirments

• 3+ years of professional experience;
• Strong Kotlin/JVM backend skills;
• Solid React/TypeScript frontend skills;
• Hands-on Docker experience in production, not just running containers;
• Can design REST APIs and implement real-time communication (WebSocket/SSE);
• Database design and query optimization;
• Security awareness: input validation, rate limiting, resource management;
• Can write technical documentation and explain architecture decisions;
• Independent worker: can take a task from requirement to production with minimalhand-holding;
• Strong English: daily async communication in writing, weekly video calls.
• Location of a candidate: Europe only.

Responsibilities

• Develop and maintain Kotlin-based services (Spring Boot or Ktor);
• Design REST APIs and implement real-time features (WebSocket/SSE);
• Build core logic for security simulations and validation;
• Develop React + TypeScript interfaces and dashboards;
• Integrate APIs and real-time data;
• Manage Docker-based environments and container orchestration;
• Automate deployment and optimise container performance;
• Design schemas and optimise queries (PostgreSQL);
• Apply secure coding practices (validation, rate limiting, resource control);
• Deliver features end-to-end with minimal supervision;
• Maintain clean Git workflows and technical documentation;
• Communicate effectively with the team.

Work conditions

Mon – Fri, 8h/day, 10:00–16:00 Israel time (Mon–Thu mandatory overlap, Friday async).

Interviewing stages

1. HR interview with EchoGlobal
2. Non-techical interview with the client
3. Technical take-home challenge (optional, not for all candidates)
4. Technical interview with the client
5. Job Offer