Front-End Engineer

SCYTALYS is a leading software development and system integration company, operating internationally with its main offices in Athens. The company counts more than 30 years of operation in the Defense and Security sectors, where it specializes in the specification, design, development, integration, installation, testing and follow-on support of:

• Tactical Data Links and Interoperability Solutions
• Mission and Command & Control Systems
• Surveillance solutions

SCYTALYS is currently looking for a skilled Front-End Engineer passionate about their field of work.

What you'll do

• Design, develop and maintain responsive, mission-critical web application interfaces using React
• Build reusable, modular components to ensure code reusability, maintainability, and scalability across the front-end codebase
• Translate UI/UX designs and wireframes into high-quality, pixel-perfect, accessible interfaces
• Integrate with RESTful APIs and back-end services, ensuring efficient data flow and robust error handling on the client side
• Optimize application performance, rendering efficiency, and user experience across different browsers and devices
• Collaborate with cross-functional teams - product managers, UI/UX designers, back-end engineers - to translate requirements into robust technical solutions
• Participate in code reviews, provide constructive feedback, and help enforce high code quality and best practices
• Communicate progress, challenges, design decisions and solutions clearly with team members and stakeholders (both technical and non-technical)
• Take ownership of features or modules from conception through deployment and maintenance, ensuring reliability, performance, and security

What we expect from you

Minimum (Mid-level):

• ~2+ years of professional experience in front-end web development
• Strong experience with React and its ecosystem (hooks, component lifecycle, routing)
• Proficiency in modern JavaScript (ES6+), TypeScript, HTML5, and CSS3
• Experience with state management libraries (e.g., Redux, Zustand, React Query or similar)
• Hands-on experience writing automated tests using modern front-end testing frameworks (e.g., Jest, React Testing Library)
• Solid understanding of REST API consumption, asynchronous programming, and integration with back-end services
• Familiarity with responsive design, cross-browser compatibility, and accessibility (WCAG) principles
• Comfort working in a structured development workflow (e.g., version control, code reviews, branching, CI/CD)
• Strong problem-solving skills, attention to code quality, maintainability, and performance

Senior-level:

• 5+ years of front-end development experience, ideally building production-grade, mission-critical user interfaces
• Experience in designing and architecting scalable and maintainable front-end systems (component libraries, design systems, micro-frontends or modular architectures)
• Experience with automated testing strategies across the testing pyramid - unit, integration, end-to-end (e.g., Cypress, Playwright) — and ability to define testing standards and coverage goals for a team
• Experience with design patterns, performance optimization, and secure coding practices on the client side
• Proactive mindset: ability to take initiative, identify technical debts or architectural improvements, mentor junior team members, and help raise the overall team's technical level
• Ability to communicate complex ideas clearly, both to technical and non-technical stakeholders; strong collaboration across teams

Nice-to-have / Preferred

• Previous experience in defense, aerospace, or other mission-critical / high-reliability domains
• Familiarity with CI/CD pipelines and front-end build tooling (Webpack, etc.)
• Experience with complex UI design, data-dense dashboards, performance-sensitive rendering, and advanced responsive design techniques
• Experience with geospatial data, mapping libraries (e.g., Leaflet, Mapbox, OpenLayers, Cesium) or real-time tracking and visualization
• Familiarity with code quality, static analysis or linting tools (ESLint, Prettier, SonarQube)
• Experience with WebSockets or other real-time communication technologies

What we offer

• Competitive remuneration package
• Private Medical Insurance package
• Continuous learning in new technologies
• Opportunity to work in large-scale projects with talented people