Got a bill from nestfainder.ai? Billing is currently handled by opendeluxe UG – we are the company that builds and brings nestfainder.ai to market. • Eine Rechnung von nestfainder.ai erhalten? Die Abrechnung erfolgt aktuell über opendeluxe UG – wir sind das Unternehmen, das nestfainder.ai aufbaut und an den Markt bringt. • Got a bill from nestfainder.ai? Billing is currently handled by opendeluxe UG – we are the company that builds and brings nestfainder.ai to market. • Eine Rechnung von nestfainder.ai erhalten? Die Abrechnung erfolgt aktuell über opendeluxe UG – wir sind das Unternehmen, das nestfainder.ai aufbaut und an den Markt bringt.
    ¿Recibiste una factura de nestfainder.ai? La facturación se realiza actualmente a través de opendeluxe UG – somos la empresa que desarrolla y lanza nestfainder.ai al mercado. • Vous avez reçu une facture de nestfainder.ai ? La facturation est actuellement gérée par opendeluxe UG – nous sommes l'entreprise qui développe et commercialise nestfainder.ai. • Hai ricevuto una fattura da nestfainder.ai? La fatturazione è attualmente gestita da opendeluxe UG – siamo l'azienda che sviluppa e porta nestfainder.ai sul mercato. • Получили счёт от nestfainder.ai? Выставление счетов осуществляется через opendeluxe UG – мы компания, которая разрабатывает и выводит nestfainder.ai на рынок. • Dostałeś rachunek od nestfainder.ai? Rozliczenia są prowadzone przez opendeluxe UG – jesteśmy firmą, która buduje i wprowadza nestfainder.ai na rynek. • هل تلقيت فاتورة من nestfainder.ai؟ تتم الفوترة حاليًا عبر opendeluxe UG – نحن الشركة التي تبني وتطلق nestfainder.ai في السوق. • קיבלת חשבון מ-nestfainder.ai? החיוב מתבצע כרגע דרך opendeluxe UG – אנחנו החברה שבונה ומביאה את nestfainder.ai לשוק. • nestfainder.ai'den fatura mı aldınız? Faturalandırma şu anda opendeluxe UG tarafından yapılmaktadır – nestfainder.ai'yi geliştiren ve pazara sunan şirket biziz. • Bạn nhận được hóa đơn từ nestfainder.ai? Việc thanh toán hiện do opendeluxe UG xử lý – chúng tôi là công ty xây dựng và đưa nestfainder.ai ra thị trường. • ได้รับใบแจ้งหนี้จาก nestfainder.ai? การเรียกเก็บเงินดำเนินการผ่าน opendeluxe UG – เราคือบริษัทที่สร้างและนำ nestfainder.ai ออกสู่ตลาด • nestfainder.ai से बिल मिला? बिलिंग opendeluxe UG के माध्यम से होती है – हम वह कंपनी हैं जो nestfainder.ai को बनाती और बाज़ार में लाती है। • ¿Recibiste una factura de nestfainder.ai? La facturación se realiza actualmente a través de opendeluxe UG – somos la empresa que desarrolla y lanza nestfainder.ai al mercado. • Vous avez reçu une facture de nestfainder.ai ? La facturation est actuellement gérée par opendeluxe UG – nous sommes l'entreprise qui développe et commercialise nestfainder.ai. • Hai ricevuto una fattura da nestfainder.ai? La fatturazione è attualmente gestita da opendeluxe UG – siamo l'azienda che sviluppa e porta nestfainder.ai sul mercato. • Получили счёт от nestfainder.ai? Выставление счетов осуществляется через opendeluxe UG – мы компания, которая разрабатывает и выводит nestfainder.ai на рынок. • Dostałeś rachunek od nestfainder.ai? Rozliczenia są prowadzone przez opendeluxe UG – jesteśmy firmą, która buduje i wprowadza nestfainder.ai na rynek. • هل تلقيت فاتورة من nestfainder.ai؟ تتم الفوترة حاليًا عبر opendeluxe UG – نحن الشركة التي تبني وتطلق nestfainder.ai في السوق. • קיבלת חשבון מ-nestfainder.ai? החיוב מתבצע כרגע דרך opendeluxe UG – אנחנו החברה שבונה ומביאה את nestfainder.ai לשוק. • nestfainder.ai'den fatura mı aldınız? Faturalandırma şu anda opendeluxe UG tarafından yapılmaktadır – nestfainder.ai'yi geliştiren ve pazara sunan şirket biziz. • Bạn nhận được hóa đơn từ nestfainder.ai? Việc thanh toán hiện do opendeluxe UG xử lý – chúng tôi là công ty xây dựng và đưa nestfainder.ai ra thị trường. • ได้รับใบแจ้งหนี้จาก nestfainder.ai? การเรียกเก็บเงินดำเนินการผ่าน opendeluxe UG – เราคือบริษัทที่สร้างและนำ nestfainder.ai ออกสู่ตลาด • nestfainder.ai से बिल मिला? बिलिंग opendeluxe UG के माध्यम से होती है – हम वह कंपनी हैं जो nestfainder.ai को बनाती और बाज़ार में लाती है।

    Engineering the Future ofData Intelligence

    We build ventures and startups. Sophisticated software solutions that transform how businesses interact with their data.

    Hagen, CEO of opendeluxe
    Melanie HübelGaylord AulkeAndrey HristovSebastianTeam MemberTeam MemberTeam MemberSpas ShopovAnton LobodenkoStefan BofirovMoritz StumpfTeixeraRobert OppenheimEric Romba

    Hi, I'm Hagen— CEO (Chief of Everything)

    Since 2011, my team and I have been building companies and software from the ground up. We operate as a venture builder — hands-on software creators from first code to market proof.

    We don't start with large teams or polished pitch decks. We start by writing the first lines of code ourselves — shaping the MVP, validating the business idea, and proving market demand. Only once there is real traction do we scale the team and the product.

    This approach has led to multiple ventures, including Medolan (discontinued 2015), zizzle eLearning Inc., dedified, TokenForge, and Infobud.ai. Our current focus is nestfainder.ai.

    This process reduces risk, shortens feedback loops, and avoids premature scaling — whether we apply it to our own ventures or to custom software built for clients across industries.

    Services

    Enterprise-grade solutions for the next generation of data-driven applications

    Mobile Apps

    Native and cross-platform mobile applications built for performance, usability, and scale. From concept to App Store.

    • iOS Development
    • Android Development
    • React Native & Flutter

    SaaS Platforms

    End-to-end SaaS platform development with multi-tenant architecture, subscription billing, and scalable infrastructure.

    • Multi-tenant Architecture
    • Subscription Management
    • API-first Design

    Growth Scaling

    Strategic scaling of startups and products from MVP to market leadership. Infrastructure, team, and process optimization.

    • Infrastructure Scaling
    • Performance Optimization
    • Team & Process Growth

    MCP Server Solutions

    Custom MCP servers for internal data management and SaaS integration, ensuring seamless connectivity and optimal performance.

    • Internal Data MCP
    • SaaS Company Integration
    • Real-time Synchronization
    Read more →

    RAG Pipelines

    Advanced Retrieval-Augmented Generation pipelines that enhance AI capabilities with your proprietary knowledge base.

    • Document Processing
    • Semantic Search
    • Context-Aware Responses
    Read more →

    Intelligent Chatbots

    AI-powered conversational interfaces that understand context and provide meaningful interactions with your users.

    • Natural Language Processing
    • Multi-platform Integration
    • Custom Training
    Read more →

    Knowledge Graphs

    Sophisticated knowledge representation systems that map relationships and enable advanced data discovery.

    • Entity Recognition
    • Relationship Mapping
    • Graph Querying
    Read more →

    TimeSeries & TimeScale DB

    High-performance time-series database solutions optimized for temporal data analysis and real-time insights.

    • Real-time Analytics
    • Data Compression
    • Scalable Architecture
    Read more →

    Performance PostgreSQL

    Optimized PostgreSQL database solutions engineered for maximum performance and reliability at scale.

    • Query Optimization
    • Indexing Strategies
    • Performance Monitoring
    Read more →

    Vector Databases

    Highly efficient vector search solutions for embedding storage and semantic similarity matching for AI applications.

    • Qdrant Integration
    • Weaviate Implementation
    • Semantic Similarity Search
    Read more →

    NLP / Neural Language Processing

    Advanced natural language processing solutions leveraging the latest in neural network technologies for text understanding and generation.

    • Text Classification
    • Named Entity Recognition
    • Sentiment Analysis
    Read more →

    Individual Software Development

    Custom software solutions tailored to your specific business needs and technical requirements. In the past, we even did 6 years of blockchain development (Smart Contracts, Avalanche, Ethereum).

    • Backend Development
    • Mobile Development
    • Blockchain Expertise
    Read more →

    Transforming Ideas IntoScalable Solutions

    We are a team of passionate software engineers specializing in cutting-edge data infrastructure and AI-powered solutions. Our expertise spans from low-level database optimization to high-level AI integration.

    With years of experience in enterprise software development, we understand the critical importance of performance, scalability, and reliability in today's fast-paced digital landscape.

    Our mission is to bridge the gap between complex technical capabilities and practical business solutions, delivering software that not only meets today's requirements but anticipates tomorrow's challenges.

    14+
    Years Experience
    3
    Exits
    50+
    Projects Launched
    5 + 3
    Countries + Continents

    References

    Our trusted partners and clients with whom we've built successful solutions.

    Team

    Meet the talented professionals behind our successful projects

    Hagen Hübel

    Hagen Hübel — Founder & CEO / CTO

    With 30 years experience Hagen is at the apex of software and blockchain innovation. Working on highly scalable and complex technical applications and startups over the past 3 decades delivering real commercial value. As a full stack developer he has worked with almost every programming language that the Planet has ever seen, started with Assembler when he was 15 years old and sold his first software. He is an open source fanatic and frequent contributor to many libraries and frameworks on GitHub.

    Melanie Hübel

    Melanie Hübel — Assistant to the CEO

    With her long year experience as Team Assistant and Management Assistant at - for instance - Peek & Cloppenburg and HSBC Trinkaus & Burkhard, Melanie decided to join opendeluxe UG in 2017. She'll take care of the bookkeeping and finances, organizes appointments and business trips.

    Gaylord Aulke

    Gaylord Aulke — CEO @ 100DAYS GMBH

    IT Scalability, Blockchain, Kubernetes and Application Architecture: Gaylord is the development expert helping us to create the big picture concept of the coding and security structure behind the Security Token Sale Platform and other projects as well as implementing it. He and his company are highly experienced in large-scale software projects. If we need a high skilled expert, we contact him on our mutual Slack. Vice versa, we help him if he or his team needs us.

    Andrey Hristov

    Andrey Hristov — CTO @ DNH SOFT

    End to end software development: In his previous life Andrey was a principal software developer at MySQL and Oracle, learning the craft of software product development. In the last several years, he is a development expert leading software teams at dnh soft. One of his teams together with 100 Days co-implemented the Security Token Sale platform. Andrey and DNH Soft are specializing in the area of eCommerce, AWS and Machine Learning.

    Advisors

    Robert Oppenheim

    Robert Oppenheim — LEGAL

    Robert is a lawyer at Lindenpartners since 2013. As a specialist lawyer, Robert supports banks and financial institutions in all issues of banking supervision and capital markets law. His focus in FinTech Consulting is on Robo Advisory, Crowd Investing and Payments. Advising companies for their token offerings, crypto-assets and Blockchain/DLT.

    Eric Romba

    Eric Romba — LEGAL

    Eric is a lawyer and partner at Lindenpartners. Lindenpartners are legal specialists in crypto-assets and blockchain. Eric's approach to advising his clients is to understand where they wish to go, and develop an attitude together. Pairing pragmatic solutions and entrepreneurial understanding is the key.

    Ready to Transform Your Data?

    Let's discuss how our expertise can accelerate your next project

    Get In Touch

    Quick Response

    We respond within 24 hours

    Expert Team

    Dedicated project specialists

    Flexible Schedule

    Available across time zones

    Ready to Scale Your Data Infrastructure?

    Join innovative companies who trust us to build their mission-critical data solutions