Frontend-Focused Full-Stack Developer - Part-time - EMEA/APAC

About the company

Sygnia is a leading cybersecurity consulting and incident response firm, helping organizations worldwide build digital resilience and respond to advanced cyber threats. Our elite teams support red/purple team testing and infrastructure provisioning for high-stakes security engagements.

We’re currently seeking a frontend-focused full-stack developer to complete a partially built internal application that automates the provisioning of attack infrastructure for our security teams.

Project Overview

The application is approximately 80–90% complete, originally built by a now-retired developer. Your role will be to finalize the app, enhance UI responsiveness, and ensure tight synchronization between the frontend and backend services.

This is a short-term freelance project, but may lead to future opportunities with Sygnia.

Key Responsibilities

• Finalize development of a React-based frontend
• Improve UI/UX responsiveness and usability
• Integrate and synchronize frontend with an existing Node.js backend
• Review and work with existing codebase
• Collaborate with an in-house developer on backend coordination
• Suggest and implement UI/UX improvements
• Ensure seamless deployment on GCP (Google Cloud Platform)

Tech Stack

• Frontend: React, TypeScript
• Backend: Node.js
• Database: MongoDB (open to alternatives if justified)
• Infrastructure: Google Cloud Platform
• Other: Web sockets, responsive design best practices

Requirements

• 3+ years of full-stack development experience, with a strong focus on frontend/UI work
• Proficiency in React and TypeScript
• Comfortable working with Node.js and MongoDB
• Experience improving and maintaining existing codebases
• Good eye for design and UI responsiveness
• Familiarity with GCP and provisioning cloud infrastructure
• Excellent communication skills and ability to work independently
• Significant timezone overlap with Israel

Nice to Have

• Experience in cybersecurity or security tooling
• Familiarity with red/purple team workflows
• Prior freelance or contractor experience in time-boxed projects