Junior Software Engineer

About the role
We're looking for a Junior Software Engineer to build web applications for the legal industry at ADVOSYNC. This is a long-term project with flexible working hours. We want someone with first experience in web development who is highly committed, learns fast and works with AI every day. You'll work with Next.js, React, TypeScript and Node.js, and AI tools (Claude, Cursor) are a standard part of how we work. You'll contribute to the product from day one, with support from more experienced team members on the harder topics.
What you'll do

• Build and develop features in web applications using Next.js, React, TypeScript and Node.js

• Use AI tools (Claude, Cursor) every day at every stage: understanding the task, writing code, testing and documentation

• Help deliver AI-powered features: LLM integrations, automations and prompt work

• Own tasks end to end, from clarifying requirements through implementation and testing to deployment, with support from senior team members

• Take care of code quality through code reviews, tests and documentation

• Collaborate with the team, partly in English

Must have

• 6–12 months of experience building web applications (commercial work, an internship, or personal projects you can show, e.g. on GitHub)

• An AI-first mindset: you use coding assistants (e.g. Claude, Cursor) daily and want to grow in building AI-based solutions

• Hands-on TypeScript

• React basics on the front end

• Node.js back-end basics: building simple REST APIs and working with data

• Database and SQL basics (e.g. PostgreSQL)

• Git, and you're comfortable with code reviews

• High commitment, independence in finding solutions and fast learning

• English good enough to read documentation and communicate with the team (B2 minimum)

• Availability for hybrid work: one day a week in our Wrocław office (you live in or near Wrocław)

Nice to have

• Next.js and a full-stack approach

• Your own AI projects: LLM API integrations, RAG, agents, prompt engineering

• Basics of automated testing

• Basics of Docker, CI/CD (e.g. GitHub Actions) or cloud (AWS, Azure, GCP)

• Interest in legal tech or document-processing systems

What we offer

• 50 PLN/h gross on a mandate contract (umowa zlecenie)

• Flexible working hours

• Hybrid work: one day a week in our Wrocław office, remote the rest of the week

• Claude and Cursor licenses provided by the company

• Support from an experienced team and real impact on the product from the first weeks

Recruitment process

1. Intro call with a technical team member (~30 min): your expectations, availability, experience and projects you can show

2. Meeting with our CEO: commitment, way of working, approach to AI and cultural fit

Tech stack

• TypeScript
• React
• Node.js
• SQL/PostgreSQL
• Git
• Next.js