Who We Are

We are AlphaSphere, the team behind OptiSigns - trusted by 13,000+ customers worldwide. As a startup, we move fast, and build solutions that matter. We need curious, fearless minds who want to grow with us, take ownership, and create outstanding customer experiences.

This internship offers hands-on experience in both front-end and back-end development. You will work on real-world projects, contribute to product development, and collaborate in a professional software engineering environment.

Key Responsibilities

Software Development

  • Build responsive and interactive UIs using HTML, CSS, JavaScript, React.js, Next.js, Angular, and AngularJS

  • Develop server-side logic using Node.js and Express.js

  • Design and integrate RESTful APIs and GraphQL services

Data Management

  • Integrate and manage databases such as MongoDB

Code Testing & Debugging

  • Write unit tests and participate in code reviews

  • Debug and troubleshoot software issues

Project Collaboration

  • Use Git for version control

  • Work closely with the development team to manage code and track project progress

Technical Problem Solving

  • Analyze and resolve technical challenges during development


Technologies You Will Work With

  • Frontend: HTML, CSS, JavaScript, React.js, Next.js, Angular, AngularJS

  • Backend: Node.js, Express.js

  • APIs: RESTful APIs, GraphQL

  • Database: MongoDB

  • Tools: Git


Requirements

  • Currently pursuing a degree in Computer Science, Software Engineering, or related fields

  • Basic understanding of web development concepts

  • Basic proficiency in programming languages such as JavaScript is required

  • Familiarity with React, Node.js, or Next.js is a plus

  • Strong analytical and logical thinking

  • Good communication and teamwork skills

  • Available to work at least 32 hours per week

What You Will Gain

  • Hands-on experience with modern web technologies and frameworks

  • Exposure to the full software development lifecycle (SDLC)

  • Mentorship from experienced developers

  • Opportunity to work on real products and make meaningful contributions

Benefits

  • Attractive internship allowance – We value your skills and contributions

  • Free pantry access – Drinks & snacks provided

  • Full-time opportunity – Outstanding interns may be offered a full-time position

  • International working environment – Collaborate with teammates from various countries and cultures


Working time: Monday to Friday, 9:00 AM - 6:30 PM (GMT+7)

Location: AlphaSphere Office, 1st and 2nd Floor, DC Tower, 111D Ly Chinh Thang Street, Xuan Hoa Ward, Ho Chi Minh City


How to Apply

  • Kindly send your CV to hazel.nguyen@alphasphere.io

  • Email subject: [FIT] - Your Name - Full Stack Developer Intern

  • Important: Only applications sent in English and using the exact email subject format will be reviewed.

Along with your CV, kindly include your answers to the following three questions:

  1. ​​As a Full-Stack Intern working alongside AI, how do you differentiate your role from AI’s role in the development process?

  2. What tools or methods help you improve your coding speed and quality?

  3. Submit a short PDF describing a previous academic or work project that you consider technically challenging.

Please include:

  • A brief overview of the project

  • The most technically challenging part you worked on

  • Why do you consider this project technically hard-core

You may include relevant GitHub repositories, demo links, or live websites.