Freelancers using PostgreSQL in WarsawFreelancers using PostgreSQL in Warsaw
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Dima Umen's avatar
Dima Umen
proWarsaw, Poland
Web & Mobile Developer | React Node ASP.NET Vue React Native
13
Followers
Web & Mobile Developer | React Node ASP.NET Vue React Native
Cover image for High responsive PM solution
High responsive PM solution
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16
Cover image for Brights developed a SaaS booking
Brights developed a SaaS booking platform for beauty service providers to replace manual scheduling through Instagram messages and phone calls. The platform allows customers to book appointments online, view real-time availability, and pay directly through the app. We built a seamless scheduling experience that simplifies appointment management for both clients and salon staff. The system also includes CRM features, notifications, payment integrations, and tools for managing specialists and services. A key focus was creating an intuitive user experience that reduces friction during booking and improves operational efficiency. The platform was designed to support scalability for growing salons and beauty businesses with multiple locations or specialists. Automated workflows helped reduce missed appointments and manual coordination efforts. By digitizing the entire booking process, the solution improved customer convenience while helping businesses streamline daily operations and increase booking conversions.
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61
Cover image for The AVIS photo capture app
The AVIS photo capture app was built to standardize vehicle photography across rental, leasing, and return workflows. Brights developed a mobile solution that guides users through a structured photo-taking process to ensure consistent image quality and coverage. The app helps employees capture vehicle condition data faster while reducing human error during inspections. We implemented guided capture flows, validation logic, and seamless upload functionality to streamline documentation. The solution was designed to work efficiently in real-world conditions with different lighting, locations, and user experience levels. By automating and standardizing the process, the platform improved operational consistency across teams and locations. The app also simplified review and verification workflows for back-office operations. As a result, the client received a scalable mobile tool that accelerated inspections, improved documentation accuracy, and reduced manual processing effort.
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Cover image for Brights developed an AI-powered consultant
Brights developed an AI-powered consultant widget that delivers instant, human-like responses directly on business websites. The solution helps companies automate consultations, answer customer questions in real time, and reduce support workload without sacrificing user experience. Built with intelligent conversation flows and contextual understanding, the widget can guide users through products, services, and decision-making processes naturally. The system was designed to scale across high volumes of conversations while maintaining fast response times and accurate answers. We also focused heavily on seamless integration with existing business workflows and CRM systems. The result was a scalable AI assistant that improved customer engagement, increased response efficiency, and provided 24/7 automated support.
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68
PostgreSQL(1)
Wiktor Witkowski's avatar
Wiktor Witkowski
Warsaw, Poland
Software Engineer - Api, Automation, Scripts
Software Engineer - Api, Automation, Scripts
Cover image for Microservices Architecture System
Microservices Architecture System
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8
Cover image for Leasing Platform
Leasing Platform
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7
Cover image for Excel Automation
Excel Automation
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9
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PostgreSQL(1)
Yevhenii Rozov's avatar
Yevhenii Rozov
Warsaw, Poland
AI & Web3 dev: bots, scrapers, automations, apps, crypto
22
Followers
AI & Web3 dev: bots, scrapers, automations, apps, crypto
Cover image for 😍 Created payments flow +
😍 Created payments flow + admin dashboard for a mobile app: login, checkout, recurring subscription, invoices, and payment history. I used Stripe for payments (Checkout + Subscriptions) and Prisma for the database layer. Implemented webhook handling for subscription status updates, invoice history, and access control. Also built an admin dashboard to manage users, plans, and transactions.
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495
Cover image for 🚀 I recently built a
🚀 I recently built a custom AI automation system with 50+ AI agents designed to run business workflows automatically. The system includes specialized agents such as: • CEO agent (task coordination) • LinkedIn lead generation agent • Telegram lead finder • Email scraping & outreach agent • Job monitoring agent • AI response assistant • Data analysis agents All agents communicate through a centralized hub and can work 24/7 without manual supervision. The system handles tasks like: lead generation data scraping automated outreach monitoring opportunities workflow automation Tech stack used: Python • OpenAI / Claude • Automation agents • Web scraping • API integrations If you're looking to build custom AI agents for your business workflows, feel free to reach out.
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Cover image for 🚀 Content Marketing - My
🚀 Content Marketing - My Real Cases Over the past 5+ years I’ve been building and scaling crypto-focused content ecosystems, combining short-form video, Telegram growth, and performance-driven funnels. Here are some real numbers behind my work: • Built a crypto Telegram community to 25K+ subs, monetized via ads & partnerships • Reached 100K+ total followers across all social platforms • Created and published 10000+ content posts • Generated $200K+ total revenue through crypto content, traffic funnels, and marketing collaborations • Produced high-volume short-form content (TikTok / YouTube Shorts / Reels) • Created and launched my own crypto products and tools • Work with 100+ influencers • Built a full growth funnel & “content factory” - strategy, converting views into subscribers and revenue.
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603
Cover image for 🙌 Some of my Telegram chatbot development projects 1. PARSE...
🙌 Some of my Telegram chatbot development projects 1. PARSER + AI WRITER 2. TIKTOK Viral Scanner 3. YOUTUBE VIDEO TRANSLATOR 4. CRYPTO HEDGER 5. REPOST TT TO SHORTS And 20+ others
3
311
PostgreSQL(1)
Tisloh Pam's avatar
Tisloh Pam
Warsaw, Poland
Full-Stack Engineer · AI & Real-Time Systems
New to Contra
Full-Stack Engineer · AI & Real-Time Systems
Cover image for AI Integration Boilerplate is a
AI Integration Boilerplate is a complete starting point for an AI web product: backend, frontend, database, and local infrastructure in one repo.
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39
Cover image for A full-stack app with metamask
A full-stack app with metamask pairing, smart contracts interaction, which sends ethereum devnet tokens to campaign wallets. The platform enables users to create and manage crowdfunding campaigns, make donations, and track funding progress in real-time.
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30
Cover image for Engineered WebSocket communication layer using
Engineered WebSocket communication layer using Node.js and CRDT strategies. • Leveraged Kafka for real-time event distribution and conflict resolution. • Improved session throughput by 60%.
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Cover image for Architected RESTful backend with Node.js,
Architected RESTful backend with Node.js, deployed on AWS Lambda for scalability. • Integrated AWS Kinesis for real-time stream processing and updates. • Implemented GraphQL (Apollo Server) endpoint for reporting dashboard. • Engineered FastAPI backend with SQLAlchemy ORM supporting 10,000+ concurrent translation jobs.
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PostgreSQL(1)
Sergei Serafimovich's avatar
Sergei Serafimovich
Warsaw, Poland
From vision to product, without the chaos: https://aegte.dev
From vision to product, without the chaos: https://aegte.dev
Cover image for OctoSale
OctoSale
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5
Cover image for AI Assistant Backend Development for Comic Book App
AI Assistant Backend Development for Comic Book App
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2
Cover image for Computer Vision Backend for Comic Book Cover Detection
Computer Vision Backend for Comic Book Cover Detection
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Cover image for Christmas Sweater Image Editor Development
Christmas Sweater Image Editor Development
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4
PostgreSQL(1)