Frontend Developer

Celfocus

We are looking for a frontend engineer to join the Celfocus Egypt Delivery Center.

Someone that is eager to try new trends, new stacks and innovative approaches to our solutions would be the best fit. A disruptive mindset, not getting demotivated by failure, out of the box thinking and the willingness to take the risk, is the mindset we are looking for!

As a part of your job, you will:

• Participating in the entire software development life cycle, from concept and design to deployment and maintenance.
• Collaborate with product managers, designers, and backend engineers to define project requirements and translate them into technical specifications and implementation plans.
• Work with back-end developers to integrate APIs and services.
• Write code and tests, build prototypes, resolve issues, and profile and analyze bottlenecks.
• Optimize frontend performance to ensure fast rendering and smooth interactions for high data volumes.
• Designing, building, and maintaining complex web applications with a particular emphasis on the UI (interactions, styling, etc.)
• Work on proposals involving solutions/architecture related to Frontend technologies.
• Develop scalable and responsive web applications using modern frontend technologies such as HTML5, CSS3, JavaScript, and frameworks/libraries like React.
• Proficiency with UI rendering optimization, caching, bundling and responsive pages.
• Ensure the technical feasibility of UI/UX designs.
• Stay up to date with the latest frontend development trends, techniques, and best practices, and apply them to projects as appropriate.
• Develop automated tests to ensure business needs are met and allow for regression testing.
• Review code developed by other developers and provide feedback to ensure best practices (e.g., style guidelines, checking code in, accuracy, testability, and efficiency).
• Provide guidance, support, and mentorship to junior developers, fostering their professional growth and development.
• Providing code documentation and other inputs to technical documents.
• Be an active member of our frontend community.
• Contribute to Celfocus technical roadmap and innovation initiatives.

What are we looking for?

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Strong experience of responsive design principles, cross-browser compatibility, and web accessibility standards.
• 4+ years of professional experience in Front-End development such as (React or Angular).
• 3+ years solid experience in building and maintaining complex web applications.
• Strong experience in JavaScript/Typescript and its nuances, including ES6+ syntax.
• Strong experience in HTML5, CSS3, jQuery and AJAX.
• Strong experience in web architectures (MVC, MVVM, etc.) and communication protocols (HTTP, SOAP, REST, JSON, etc.)
• Strong experience working with XML/JSON.
• Strong experience in CSS preprocessors such as Sass or LESS.
• Strong experience with software engineering best practices such as design patterns, code reviews, unit, and integration testing, etc.
• Strong experience with frontend builds tools, package managers, and task runners such as (Webpack, Babel, NPM, etc.).
• Strong experience about testing frameworks such as Jest.
• Strong experience in software security aspects and tools such as (Authentication/Authorization, Encryption/Decryption, Digital Signatures, Identity and Access Management). (Owasp Top 10)
• Strong experience with code analysis and review tools such as (ESLint, SonarQube, CodeQL).
• Experience in continuous integration and continuous delivery tools (CI/CD) such as (Jenkins, Github Actions or Gitlab Pipelines).
• Experience with ticket tracking and documentation tools such as (JIRA and Confluence).
• Experience with version control systems and its daily workflow such as (GitHub and GitLab).
• Experience with Relational/NoSQL databases and data workflow management.
• Experience in building cross-platform mobile applications using React Native.
• Strong Knowledge of UX/UI principles.
• Strong knowledge of cloud and containerized solutions (AWS, Azure, Kubernetes, Docker, etc.)
• Strong knowledge of agile development methodologies (Scrum and/or Kanban).
• Knowledge of content management system (CMS) such as (Adobe Experience Manager (AEM), Liferay, Contentful).
• Knowledge of principles of microservices architecture design (clean and/or hexagonal architectures, message-driven solutions) is a plus.
• Knowledge of API Gateways (Kong API Gateway) is a plus.
• Knowledge of Figma and Sketch is a plus.
• Knowledge of TELCO industry BSS architectures is preferable.
• Hands on experience integrating with REST APIs using TMF standards & Open API specifications is preferable.
• Problem solver mindset: for a given context, think, design, and present a solution for a diverse set of stakeholders (from CTO to architects and developers).
• Excellent communication skills to convey technical concepts and collaborate effectively with cross-functional teams and clients.
• Availability to travel (short-term periods)

Required skills:

• A minimum of 4 years of professional React JS experience, including proficiency in state management libraries such as Redux.
• Strong Experience with RESTful APIs and integrating frontend applications with backend services.
• Strong Experience with CSS libraries/frameworks such as Bootstrap, Material-UI, or Tailwind CSS.
• Proficiency in English (both spoken and written)

Personal traits

• Ability to adapt to different contexts, teams, and Clients;
• Teamwork skills but also a sense of autonomy;
• Motivation for international projects and ok if travel is included;
• Willingness to collaborate with other players;
• Strong communication skills.