Cornerstone Technologies is a community of engineers driven by making a better world through lines of code. We believe that technology is here to help us live easier and happier lives, and we want to play a role in building this future.

Our staff are our core competitive advantage. While almost anything in this world can be imitated, the one thing that can't be copied is the culture. We put accent on work-life balance, flexibility and opportunity to grow.

We envision a world where access to information and the ability to understand one's impact empowers individuals to make wise decisions and pursue happiness, regardless of their location

You don’t have to wait for a better world. You can join us and build it.

.NET Developer Intern

As a .NET Developer Intern, you will be working with our software development team to design and implement applications and services. You will aid in the full software development lifecycle, from concept and design to testing. This role is an excellent opportunity to learn and contribute to various .NET projects, including web, service, and desktop application development.

  • Collaborate with other developers to design and implement functional .NET applications
  • Write clean, scalable code using C# programming language
  • Conduct end-to-end software development for our projects, which may include web applications, RESTful services, and desktop applications
  • Integrate with databases, including SQL Server, and implement data storage solutions
  • Participate in testing to identify and resolve system malfunctions to meet quality standards
  • Contribute to code reviews and share insights for continuous improvements
  • Assist in creating documentation for software solutions
  • Engage in educational opportunities to update job knowledge and technical skills
  • Currently enrolled in a computer science, software engineering, or related field
  • Knowledge of object-oriented programming (OOP) concepts
  • Strong problem-solving and analytical skills
  • Effective communication and team collaboration skills
  • Eagerness to learn and take on challenging tasks
Nice to have:
  • Basic understanding of the .NET framework and C# programming language
  • Familiarity with SQL and databases is a plus
  • Experience with version control tools like Git is a plus
locationBucharest, Brasov, Constanta
contract type

Part-time 6h/day

Angular Developer Intern

We are looking for an Angular Developer Intern to join our dynamic frontend development team. In this role, you will help build and maintain scalable and user-friendly web applications. You'll gain hands-on experience with Angular and other modern web technologies in a collaborative and agile environment.

  • Work closely with the development team to implement visual elements that users see and interact with in web applications
  • Write robust, maintainable, and efficient code in Angular
  • Help design and develop responsive front-end architecture
  • Coordinate with backend developers to integrate APIs and other services
  • Assist in maintaining and improving existing codebases and peer review code changes
  • Liaise with product and design teams to translate requirements and mockups into fully functioning features
  • Participate in troubleshooting and debugging to optimize performance
  • Document code consistently throughout the development process
  • Currently pursuing a degree in Computer Science, Information Technology, or a related field
  • Understanding of HTML5, CSS3, and JavaScript (ES6+)
  • Strong problem-solving capabilities
  • Excellent verbal and written communication skills
  • Proactive, dedicated, and collaborative approach to learning and development
Nice to have:
  • Basic knowledge of Angular and TypeScript
  • Familiarity with responsive design principles and cross-browser compatibility issues
  • Experience with version control tools like Git is a plus
locationBucharest, Brasov, Constanta
contract type

Part-time 6h/day

Benefits of Working at CST

Hybrid flexibility-icon

Hybrid flexibility

We don’t put ourselves in a box when it comes to defining whether we are in-office or remote. The choice is yours.



We want you to enjoy and feel amazing at work and in life. We offer private health services to all our employees.



We offer competitive salary and stock options.

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Company outings

Beyond work, we aim to cultivate a vibrant and inclusive culture by organizing regular social events in our hubs, featuring board games, office parties, and other activities.

A diverse and inclusive workplace-icon

A diverse and inclusive workplace

Embrace a career path where your well-being is equally valued. We provide the resources and support you need to thrive both professionally and personally.

Take your organization to the
next level.


Cornerstone Technologies is a global software engineering company providing consulting, design, application development, and testing services since 1998.

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