Kerolos Ghobreyal

At Working Talent, I followed an intensive traineeship focused on building a strong foundation in Java. The programme combined practical development with training and coaching to develop technical and interpersonal skills.

As part of the programme, I worked on a full-stack library application. I built the frontend with HTML, CSS, JavaScript and Angular, and developed the backend with Spring and Spring Boot. I designed and implemented RESTful endpoints and the communication between the application's layers.

The traineeship emphasized collaboration in agile teams, with regular code reviews, Scrum sessions and ongoing feedback. This combination of practical work and feedback supported my development as a software engineer.

Responsibilities

• Develop the library application's frontend with HTML, CSS, JavaScript and Angular.
• Build the backend with Spring and Spring Boot.
• Design and implement RESTful endpoints and communication between application layers.
• Collaborate in an agile team with code reviews, Scrum sessions and continuous feedback.

Results

• Built a stronger foundation in Java through practical application development.
• Developed experience integrating frontend and backend application layers.

• Java
• Scrum
• Teamwork
• Angular
• REST APIs
• Postman
• JavaScript
• Communication
• Code review
• Problem solving
• HTML
• Spring
• Spring Boot
• CSS

During my internship and subsequent employment at WebAds, I developed and optimized REST APIs used to process data from the Netherlands, Italy and Spain and display it in a dashboard. The project involved several stakeholders and closely managed deadlines.

My task was to build an efficient, reliable API and make sure the dashboard was both user-friendly and technically dependable. I began by analysing the existing processes and data requirements in collaboration with teams in the different countries.

I then designed and implemented the APIs using PHP and JavaScript with React. I tested iteratively to identify errors early and shared progress through weekly updates and demonstrations, incorporating feedback from the team.

The APIs and dashboard were implemented successfully and reduced the time spent processing and analysing data. I presented the solution to management and developers at a company conference in Madrid. Following management approval, it was adopted by multiple teams and improved the efficiency of their data-processing workflow.

Working across countries and communicating with both management and operational teams strengthened my collaboration, communication and ability to adapt in a dynamic environment.

Responsibilities

• Analyse existing processes and data requirements with international teams.
• Design and implement REST APIs and dashboard functionality using PHP and JavaScript with React.
• Test iteratively to identify and address errors early.
• Share weekly updates and demonstrations and incorporate team feedback.
• Present the solution to management and developers.

Results

• Delivered APIs and a dashboard adopted by multiple teams after management approval.
• Reduced time spent on data processing and analysis and improved workflow efficiency.
• Presented the solution at a company conference in Madrid.
• Strengthened communication and collaboration across countries and organizational levels.

• Frontend development
• Backend development
• PHP
• API development
• Full-stack development
• Python
• JavaScript
• React
• SQL
• HTML
• CSS
• MySQL
• MariaDB
• CentOS

During my internship at Eljakim IT, I worked on an API system for coding competitions and assessments. My task was to build scripts that retrieved participants' code submissions, compiled them and evaluated them automatically against test cases and expected results.

Using PHP and Redis, I developed a solution to process large amounts of data efficiently and provide real-time feedback. I worked closely with the team and tested the system carefully.

The resulting platform reduced errors and processing time and improved the client's workflow. The project gave me practical experience translating complex technical problems into a robust, scalable solution.

Responsibilities

• Build scripts to retrieve and compile participants' code submissions.
• Evaluate submissions automatically against test cases and expected results.
• Develop the processing solution using PHP and Redis.
• Collaborate with the team and test the system carefully.

Results

• Provided real-time feedback on code submissions.
• Reduced errors and processing time in the assessment workflow.
• Delivered a robust, scalable platform together with the team.

• Scrum
• PHP
• Redis

At DWE-ICT, I developed and tested APIs for internal systems within the Microsoft software environment. These systems supported the management of financial data and customer information.

My focus was on writing efficient, well-documented APIs and implementing automated tests to support their reliability and consistency. I used testing tools and methods to identify and resolve defects early in development.

This work improved the quality of the systems and gave me experience developing solutions with a direct effect on the company's operations.

Responsibilities

• Develop and test APIs for internal systems handling financial and customer data.
• Write efficient APIs with clear documentation.
• Implement automated tests for reliability and consistency.
• Identify and resolve defects early through testing.

Results

• Improved system quality through earlier identification and resolution of defects.
• Supported more reliable and consistent internal APIs.

• API development
• Documentation
• Automated API testing

At De Haan IT, I worked with a team on a web-based point-of-sale system built with ASP.NET Blazor, C# and HTML. The aim was a modern, user-friendly application for till management, including product management, transaction processing and reporting.

I designed and implemented both frontend and backend functionality. We collaborated closely, reviewed each other's code and incorporated improvements throughout development. Using Blazor, we delivered an interactive application that ran directly in the browser without external plug-ins.

The team delivered a robust, scalable system that met the client's requirements. The project also developed my teamwork and technical skills.

Responsibilities

• Design and implement frontend and backend functionality.
• Use ASP.NET Blazor, C# and HTML for the web application.
• Review colleagues' code and incorporate improvements collaboratively.

Results

• Delivered an interactive point-of-sale application that ran in the browser without external plug-ins.
• Delivered a system that met the client's requirements together with the team.
• Developed teamwork and technical skills.

• Frontend development
• Backend development
• Blazor
• C#
• ASP.NET
• Code review
• HTML
• Web development

I began at Downtown Burger in serving and bar roles, developing my hospitality and customer-service skills. I learned to create a welcoming atmosphere, work efficiently with colleagues and meet customers' expectations.

I later progressed to Floor Manager, taking responsibility for daily operations, part of the financial administration and staff scheduling. I coordinated the team, maintained service standards, kept financial administration in order and prepared rotas for busy shifts.

The role helped me develop organizational and leadership skills while contributing to the restaurant's daily operations and the team's performance.

Responsibilities

• Coordinate daily floor operations and teamwork.
• Maintain consistent service standards.
• Handle part of the financial administration.
• Prepare staff schedules and rotas for busy shifts.

Results

• Progressed from serving and bar duties to Floor Manager.
• Developed organizational and leadership skills through greater operational responsibility.

• Leadership
• Management
• Financial administration
• Stress management
• Time management

My volunteer work with the Coptic Orthodox Church in Amsterdam combines technical support with community activities and youth mentoring.

The technical work includes maintaining the church network and infrastructure so that its systems operate smoothly. I also edit video and support livestreams of services and events, making them accessible to people who cannot attend in person.

Alongside these tasks, I help organize church activities and gatherings for young people. Through support and mentoring, I help them find their place in the community and develop their abilities.

This volunteering has strengthened my technical, social and organizational skills and provided an opportunity to contribute to the community.

Responsibilities

• Maintain the church network and technical infrastructure.
• Edit video and support livestreams of services and events.
• Help organize church activities and youth gatherings.
• Support and mentor young people within the community.

Results

• Made services and events accessible to community members unable to attend in person.
• Strengthened technical, social and organizational skills through volunteering.

• Network administration
• PHP
• Teamwork
• Video editing
• Livestreaming
• WordPress
• Leadership
• Coaching
• Mentoring