Junior Full-Stack Software Engineer

Kollabio; Brambleton (VA); On-site; USD 60,000 - 90,000; Full time

Job summary

Kollabio is seeking a proactive Junior Full-Stack Software Engineer to own features from design through production. You’ll work in a focused environment, receive mentorship from senior engineers, and ship production-ready code.

The role emphasizes quality, ownership, and growth in an AI-native platform. You will contribute on backend services with NestJS and TypeScript, build front-end components with React/Next.js/Vue, and apply AI tooling to code, design, and debugging tasks while aligning

Qualifications

• 1–2 years of professional software development experience or strong CS fundamentals.
• Proficient in TypeScript/JavaScript.
• Experience building components/pages with React, Vue, or similar frameworks.
• Familiar with Git, GitHub workflows and REST APIs.

Responsibilities

• Deliver backend services using NestJS and TypeScript from design to production.
• Build responsive front-end components with React, Next.js, or Vue.
• Translate requirements into clean, working code with tests.
• Participate in code reviews and API design discussions.
• Integrate AI/LLM capabilities under guidance.

Skills

TypeScript/JavaScript

React

Vue

Next.js

NestJS

Git/GitHub

REST APIs

AI coding assistants

Tools

NestJS

Next.js

React

Vue

TypeScript

Prisma

Job description

Own features from design through production on our AI-native platform, with guidance and mentorship from senior engineers.

Position overview

Kollabio is building AI-native platform solutions. We are seeking a capable, proactive Junior Full-Stack Software Engineer who operates with ownership and delivers production-ready code. You will own features from design through production, working in a focused environment where you ship real code that matters. We provide guidance and mentorship to support your growth. The responsibility—and the growth—are yours.

This is a systems-oriented engineering role for someone who takes initiative, cares about quality, and builds with structure and clarity. You work with clear architectural principles and strong support from senior engineers, but execution and ownership are yours. You make pragmatic decisions, seek feedback, and improve with each iteration.

AI-native engineering: You leverage AI tools (ChatGPT, Claude, GitHub Copilot) as core parts of your engineering practice from day one—for code generation, design exploration, debugging, and learning. Beyond tool proficiency, you design and integrate AI/LLM capabilities into our products, translating AI into user value. This is modern engineering, and you will master it alongside your team.

What you will own

• Deliver backend services using NestJS and TypeScript—from design through testing to production
• Build responsive front-end components and pages using React, Next.js, or Vue
• Translate product requirements and acceptance criteria into clean, working code
• Write meaningful unit and integration tests that protect your code from regression
• Participate in code reviews—both reviewing others' work and receiving feedback
• Contribute to REST API design and documentation
• Participate actively in technical discussions, sprint planning, and architectural decisions
• Integrate AI/LLM capabilities into features with senior guidance
• Use AI tools strategically throughout your work—from code generation to debugging to design exploration

Required experience

Core engineering

• 1-2 years of professional software development experience, or strong computer science fundamentals
• Strong proficiency in TypeScript or JavaScript
• Real experience building components and pages with React, Vue, or similar frameworks
• Comfortable with Git, GitHub, and standard version control workflows
• Understanding of HTTP, REST basics, and how APIs work

AI-assisted development

• Hands-on experience with AI coding assistants (ChatGPT, Claude, Copilot) or ability to pick them up quickly
• Familiarity with AI/LLM API concepts or demonstrated interest in learning them

Process and collaboration

• Problem-solving mindset and curiosity about how systems work
• Ability to take feedback seriously and improve based on code reviews and guidance

Preferred experience

• Experience with NestJS, Next.js, or similar frameworks
• Familiarity with PostgreSQL, relational databases, or ORMs like Prisma
• Experience integrating AI/LLM APIs or building with language models in projects
• Work experience in Agile or Scrum environments
• Open source contributions or side projects demonstrating ownership

What success looks like

• Production-ready code that is clean, well-tested, and follows established patterns
• Features that ship on schedule with solid test coverage and no shortcuts
• Thoughtful pull requests with clear descriptions and openness to iterative feedback
• Consistent improvement in code quality, shipping speed, and architectural thinking
• Growth into a trusted, capable engineer who operates with ownership and ships quality work

Who will thrive in this role

• Engineers who operate with ownership and accountability for their work
• Developers who ask thoughtful questions and act on feedback to improve continuously
• Individuals who think beyond the current ticket—about systems, tradeoffs, and maintainability
• Professionals who see AI tools as essential to modern engineering, not shortcuts
• Engineers who want to grow in an AI-native environment where ownership is expected and growth is supported