QueUp Software

Novi Pazar, Serbia

Senior software studio from the Balkans: web, mobile and AI

QueUp Software (QUE UP d.o.o.) is a senior software studio from the Balkans, founded in 2024 and based in Novi Pazar, Serbia, working remotely with clients across Europe. A senior-only team of five engineers designs, builds and maintains websites, web shops, booking platforms, mobile apps and AI automation. We have no juniors, no bench and no hand-offs, and both founders lead every project. Services: company websites and web shops (Shopify or custom); platforms, booking systems and SaaS; React Native apps for iOS and Android; AI and automation (RAG agents, document extraction and validation); modernization and data (cloud migration, ETL); and senior engineers embedded in your team for 6–18 months. Technologies: .NET, Azure, Node.js, Python, Go, PHP, React/Next.js and React Native. Selected work: ArmaPro, a four-language website for a structural engineering studio, with a scroll-driven hero and a project portfolio the studio edits itself. Java Fashion, a Shopify menswear store set up and maintained end to end. RAG agents on Microsoft's internal cloud platform (via Akvelon). A 1TB ETL migration that cut data latency from ~48 hours to near real-time (Performance Health, via ProfitOptics). An AI document workflow for a German research institute. Own products: HalalBooker, an Umrah booking marketplace, and BaitulMal, donation tracking for non-profits. Indicative prices, from: website or web shop €500, AI pilot €2,000, platform or mobile app €5,000, senior engineer €2,500/month. You get a fixed quote after a free 30-minute intro call.

5 people in their team

Speaks English, Serbian, Croatian

3 projects in their portfolio

Works remotely across the globe

Sortlist member since 2026

Founded in 2024

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Services

6 services offered by QueUp Software

Description
Platforms, booking systems and SaaS, from architecture to release and iteration, plus modernization and data work (cloud migration, ETL pipelines, reporting). Stack: .NET, Azure, Node.js, Python, Go, PHP, React/Next.js, GraphQL, PostgreSQL. Example: HalalBooker, our own two-sided Umrah booking marketplace on a modular .NET backend with a Next.js frontend. Through partners we have worked on enterprise data platforms (via ProfitOptics). Senior engineers can also join your team from €2,500/month. Platforms from €5,000.
Learn more about Software Development
Description
Mobile apps for iOS and Android built in React Native, from design and architecture to App Store and Google Play releases, with backends in .NET, Node.js or Python on Azure. Weekly demos, direct Slack or Teams access, and code in your repositories from day one. From €5,000, fixed quote after a free 30-minute intro call.
Learn more about Mobile App
Description
Web shops on Shopify or custom-built, set up end to end: account and domain, a customized theme, catalog and categories, checkout and notifications, shipping rules, payments (including cash on delivery), promotions and store policies. You run the store day to day; we maintain it after launch. Example: Java Fashion, a Shopify menswear store we set up and maintain end to end. From €500, fixed quote after a free intro call.
Work in E-commerce (1)
Client in E-commerce (1)
Java FashionClothing & Accessories
Learn more about E-commerce
Description
Company websites and portfolios, designed and built by a senior team. Multilingual, fast, SEO-ready and managed by you from a headless CMS (Sanity). Built with React/Next.js. Free 30-minute intro call, then a fixed proposal with scope, timeline and price in writing. Example: ArmaPro, a four-language website for a structural engineering studio, with a scroll-driven hero and a CMS-managed project portfolio. From €500.
Work in Website Creation (1)
Client in Website Creation (1)
ArmaProArchitecture & Planning
Learn more about Website Creation
Description
AI and automation that runs in production: RAG agents, document extraction and validation, and AI features inside your existing product. Built with OpenAI, AWS Textract, .NET, Python and Azure. Examples: an AI document workflow for a German research institute (Textract extraction, GPT-driven structuring and validation), and RAG agents on Microsoft's internal cloud platform (via Akvelon). AI pilot from €2,000, fixed quote after a free 30-minute intro call.
Learn more about Artificial Intelligence
Description
No description provided for this service.
Work in Web Application (1)
Client in Web Application (1)
HalalBookerTravel & Leisure
Learn more about Web Application

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Details

HeadquarterStevana Nemanje 4, Novi Pazar, Serbia