CyberSec Client #3 | Full Stack Developer

About the role

On behalf of CyberSec Client #3 , SD Solutions is looking for a talented Full Stack Developer

SD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer.

Responsibilities:

Develop robust backend services using Kotlin (Spring Boot / Ktor) and build modern frontends with React + TypeScript .

Design and implement REST APIs and real-time communication layers ( WebSocket / SSE ).

Containerize and orchestrate applications using Docker and docker-compose , including advanced patterns like Docker-in-Docker and sidecar containers.

Design and optimize PostgreSQL databases with focus on performance and scalability.

Ensure high security standards (input validation, rate limiting, secure resource management).

Take full ownership of features — from requirements gathering to production deployment.

Write clear technical documentation and justify architectural decisions.

Work independently in a fast-paced environment while maintaining high code quality.

Requirements:

3–5+ years of professional experience
Strong Kotlin/JVM backend skills; ability to architect services independently

Solid React/TypeScript frontend skills

Hands-on Docker experience in production (orchestration and programmatic management)

Experience with REST API design and real-time communication (WebSocket/SSE)

Database design and query optimization

Security awareness (input validation, rate limiting, resource management)

Ability to write technical documentation and explain architecture decisions

Independent worker capable of taking tasks from requirement to production

About the company:

A security validation platform that lets security teams continuously test their defenses by running automated, scenario-based attack simulations modeled on real-world threat actors. Teams can repeat assessments until vulnerabilities are resolved and track readiness over time.

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