Front-end Javascript Developer Intern Engineering November 21, 2025

JonaJo Consulting; California (MO); On-site; Part time

Benefits offered by this job

Real-world experience

Exposure to cutting-edge technologies

Mentorship from experienced professionals

Flexible work hours

Professional networking opportunities

Job summary

JonaJo Consulting is offering an unpaid Software Engineering Internship located in California, Missouri for students or recent graduates. This role focuses on frontend development while providing exposure to backend engineering. Interns will improve existing frontend components, optimize performance, and collaborate with designers. Key qualifications include pursuing or recently completing a degree in Computer Science or a related field and familiarity with frontend frameworks. Flexible hours and mentorship opportunities are available.

Qualifications

• Currently pursuing or recently completed a degree in Computer Science, Computer Engineering, Data Science, Machine Learning, or related field.
• Basic experience with frontend frameworks such as React or Vue is a plus.
• Proficient in Git or other version control systems.

Responsibilities

• Improve and maintain existing frontend components to enhance performance and user experience.
• Collaborate with designers and product managers to deliver clean, user-friendly UI implementations.
• Optimize frontend performance, accessibility, and loading speed.

Skills

Frontend frameworks

Git/version control

Problem-solving skills

Effective communication

Education

Bachelor’s, Master’s, or PhD in Computer Science or related field

Job description

Jonajo Consulting, based in Silicon Valley, is a forward-thinking company dedicated to helping businesses succeed through innovation and best practices. We pride ourselves on creating a dynamic and inclusive work environment where creativity, technical excellence, and collaboration are at the forefront. Our team is composed of talented individuals who are passionate about delivering high-quality web, mobile, and platform solutions.

About the Role:

We are offering an unpaid Software Engineering Internship with a strong focus on frontend development, while also providing exposure to backend engineering. This role is ideal for students or recent graduates who want to gain real-world experience building polished, responsive user interfaces and contributing to full-stack development in a fast-paced startup environment.

Job Responsibilities:

• Improve and maintain existing frontend components to enhance performance and user experience.
• Collaborate with designers and product managers to deliver clean, user-friendly UI implementations.
• Optimize frontend performance, accessibility, and loading speed.
• Assist in integrating frontend components with backend APIs and services.
• Write clean, modular, maintainable code across the stack.
• Participate in code reviews, testing, and documentation to ensure code quality and consistency.
• Explore and learn modern engineering tools, frameworks, and best practices.

Basic Qualifications:

• Currently pursuing or recently completed a Bachelor’s, Master’s, or PhD in Computer Science, Computer Engineering, Data Science, Machine Learning, or a related field.
• Basic experience with frontend frameworks (e.g., React, Vue) is a plus.
• Proficiency with Git or other version control systems.
• Strong problem-solving skills, attention to detail, and willingness to learn.
• Effective communication and ability to collaborate in a fast-paced team environment.

What We Offer:

• Real-world experience in a dynamic software development team.
• Exposure to cutting-edge technologies and industry best practices.
• Mentorship from experienced professionals.
• Flexible work hours to accommodate academic commitments.
• An opportunity to build a professional network in the tech industry.