Frontend Software Engineer

Why are you looking for a job?

If your answer ticks all the boxes, this could be the start of a great collaboration.

• You have a curious mind - You won't understand what we're talking about if you don't 🤔
• You want to learn more around technology - You won't survive if you don't 😱
• You want to make the world a bit better - We don’t like you if you don’t 😎

We happen to be just like that as well. We like hacking things here and there (you included) and create scalable solutions that bring value to the world.

SquareDev? 🐿️

We use state-of-the-art technology to build solutions for our customers and our partners' customers. We make sure we stay best-in-class by participating in research projects across Europe, collaborating with top universities and enterprises on AI, Data, and Cloud.

About QnR Group

SquareDev is a member of the QnR Group, a leading technology organization specializing in end-to-end custom software solutions, Artificial Intelligence, Cybersecurity, SAP S/4HANA, SAP Business One, ServiceNow, and FinTech solutions.

As part of QnR Group's ongoing expansion — both in Greece and internationally — we are continuously hiring across a wide range of tech roles. Successful candidates may be hired by QnR Group, or another company within the Group, depending on the role and project.

Role overview

We are looking for a Frontend Software Engineer to build fast, accessible, and visually polished web interfaces. Working closely with UX/UI designers and back-end teams, you will translate mockups and requirements into responsive, production-grade applications using modern front-end technologies.

Requirements

The ideal candidate will be responsible for:

• Develop front-end application architecture and implement user interaction features that enhance the overall user experience.
• Build reusable, modular UI components following clean code principles and scalable design patterns.
• Ensure web applications are cross-browser compatible, responsive, and optimized for performance across devices.
• Implement state management solutions to handle data flow within complex single-page applications.
• Collaborate with UX/UI designers to faithfully translate wireframes and mockups into high-fidelity, functional interfaces.
• Apply security best practices including input validation, authentication/authorization, and compliant logging.
• Perform unit and integration testing, debug and validate code changes, and integrate builds into CI/CD pipelines.
• Write clear technical documentation and contribute to shared front-end standards.

To excel in this role, you'll need:

• Proficiency in HTML5, JavaScript (ES6+), CSS3, and SASS.
• Strong experience with Angular (v14+), TypeScript, Bootstrap, and modern build tooling (Angular CLI, Webpack, Vite).
• Knowledge of web security standards and authentication protocols (OAuth 2.0, OpenID Connect).
• Experience with client-side monitoring tools such as Dynatrace Real User Monitoring and Azure Application Insights.
• Familiarity with CDN services (Cloudflare, AWS CloudFront) for asset delivery optimization.
• Experience with front-end testing frameworks (Jest, Karma, Cypress) and accessibility standards.
• Working knowledge of DevSecOps tooling: Git, JIRA, Confluence, Jenkins, and Bamboo.
• Bonus: experience with Redux architecture, SEO principles, or React/Vue.js.

Nice to have:

• A framework-specific certification from a recognized vendor such as Microsoft or Adobe.