Full-Stack Developer Intern

About Justera Group

Justera Group AB is a leading Swedish IT consulting firm specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today's rapidly changing economy.

The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle—from hiring to ongoing management—ensuring the right fit for each project on time and within budget.

With a strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden.

About The Role

We're looking for a Full-Stack Developer Intern who's passionate about building scalable web applications using modern technologies. You'll work across both frontend and backend components, contributing to APIs, user interfaces, and data management systems.

This internship offers the opportunity to collaborate with senior engineers on real-world SaaS systems built with microservice and micro-frontend architectures.

Key Responsibilities

• 💻 Develop and maintain frontend components using React/Next.js
• ⚙️ Build and optimize backend APIs using Node.js/NestJS or Python/FastAPI
• 🧩 Work with PostgreSQL databases and ORM tools
• 🔐 Integrate authentication and authorization using Logto
• ☁️ Consume and interact with cloud-hosted microservices
• 🧪 Write unit and integration tests to ensure code quality
• 🔄 Collaborate closely with DevOps for CI/CD and deployment workflows
  
  

Tech Stack

• Frontend: React, Next.js, TailwindCSS
• Backend: Node.js (NestJS) / Python (FastAPI)
• Database: PostgreSQL, Redis
• Auth: Logto/Auth0/Okta/Keycloak
• Version Control: Git, GitHub
• CI/CD: GitHub Actions, Docker
  
  

Requirements

• 🎓 Pursuing or recently completed a degree in Computer Science or related field
• 💡 Knowledge of JavaScript/TypeScript and RESTful APIs
• ⚙️ Understanding of databases (SQL basics) and version control (Git)
• 🌱 Eagerness to learn microservices and modern web architectures
• 🤝 Good communication skills and a collaborative mindset
  
  

What You'll Gain

• Experience building production-ready SaaS applications
• Mentorship in full-stack and cloud-based development practices
• Hands-on exposure to real DevOps and CI/CD workflows
• Potential for full-time employment upon successful completion
  
  

What We Offer

• A dynamic and innovative workplace driving advancements in cutting-edge technologies
• The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects
• A supportive culture that fosters continuous learning, growth, and professional development
• Flexible hybrid working model for an optimal work-life balance
  
  

How to Apply

Send your application including:

• Resume or GitHub/LinkedIn profile
• A short note about your full-stack interests or any project you've worked on
  
  

Justera Group is committed to diversity and inclusion. We encourage applications from all qualified candidates.