Jun/Mid Full Stack Developer

Summary

Join Holycode's WeBuild Ventures team in Belgrade as a Jun/Mid Full Stack Developer. WeBuild Ventures, a Swiss startup studio, develops AI-powered recommendation tools. You will work directly with a business/product lead, bringing their ideas to life with clean code and seamless API integration. Your responsibilities include building responsive frontends, integrating with OpenAI and other APIs, generating dynamic PDF reports, setting up user tracking, and handling deployment and scaling. The ideal candidate possesses a Bachelor's degree in a related field, 1+ years of full-stack development experience, strong frontend UX skills, and experience with dynamic forms and API integration. The position offers a flexible work model, private health insurance, equipment of your choice, professional development budget, language lessons, and a supportive international team.

Requirements

• A candidate with a Bachelor’s degree in Computer Science, Electrical Engineering, or a related field
• At least 1+ years of relevant experience as a Full Stack Developer
• Someone who writes clean, reliable code and delivers working products quickly
• Strong skills in frontend UX and comfortable integrating APIs
• Experience building dynamic forms, managing application state, and presenting polished results
• Ability to track user behavior and measure key metrics effectively
• A communicative and independent professional focused on delivering real value
• Fluent in English; knowledge of French is a plus

Responsibilities

• Build slick and responsive frontends
• Integrate with OpenAI (or similar APIs) for logic & copy generation
• Generate clean, dynamic PDF reports based on user input
• Connect to external APIs (e.g. Stripe, Sendgrid, CRM webhooks)
• Set up detailed user tracking (Hotjar, Mixpanel, GA4)
• Handle deployment, testing, scaling

Preferred Qualifications

Bonus points if you have experience working with AI products or PDF generation

Benefits

• Private health insurance
• Flexible work model – full remote or hybrid
• Equipment of your choice (laptop, monitor, accessories)
• High-growth company with innovative products
• Supportive, international team
• Budget for professional development (courses, books, conferences)
• English and German language lessons during working hours
• Nice office in Belgrade with a stocked kitchen and game area
• Opportunity to learn, grow, and make a real impact