Building better digital worlds.

lambdaforge is a consulting company that specializes in information system engineering and digital products.

We design and build scalable, maintainable and reliable systems for data-intensive applications by building on a combination of the best open-source industry standards and our own open-sourced stack.

Our speciality is functional programming paradigms to deliver high-quality products in quick iterations. We can beat the averages by minimizing the complexity of our solutions with Clojure(Script), Idris, Racket, Scala, Python, Julia or JavaScript.

We are not only able to handle large amounts of data in our pipelines, but believe in tight integration with both well.established and bleeding-edge data science technologies. To do so we conduct scientific research parallel to our consulting work.

We can work with state-of-the-art machine learning frameworks in Python or R, but through our deep understanding we also tightly integrate the necessary numerical routines directly and can infer business-critical information in realtime.

About us

Given a problem our team of specialists forms a self-managed, focused unit formalizing the product design given the underlying business model to implementing a flexible scalable full-stack system design. We then keep your long-term costs low by running the resulting system smoothly.

Work with us!

Konrad Kühne

Konrad Kühne

CEO, Co-Founder

Konrad is a seasoned system's engineer with over ten years of programming experience covering a wide range of technologies and processes. He pushes the boundaries by mixing established technologies with problem-specific custom solutions to provide optimal software architectures for the task at hand. He always puts the focus on the business model first to derive cost-effective and evolvable solutions for each problem.

Contributing to popular open source projects he also promotes open-source solutions to the community in meetups, events and can provide courses to get your team up to speed in modern scalable IT architectures and technologies.

Christian Weilbach

Christian Weilbach

CRO, Co-Founder

Christian is an awarded distributed system architect and expert in combining machine-learning systems with scalable data-processing systems.

Being a computer scientist by training he cares deeply about the economic success of projects. Drawing on his academic network he can quickly research state-of-the-art solutions for problems and helps to frame a long-term strategy for products and companies. He educates with passion and pushes the boundaries by developing new machine-learning technologies in his PhD at UBC.

Judith Massa

Judith Massa

Data Scientist

Judith is an application-oriented data scientist whose areas of expertise include machine learning and the processing of large amounts of data with the help of parallel programming techniques.

She is always keen to work closely with people from other fields of interest and supporting them with understanding about methods and technologies concerning modeling, processing and intelligent storage of data as well as its usage as tool for reasoning and knowledge discovery.

Jiayi Liu

Jiayi Liu

Master of Coin

Jiayi is the only member of the team with almost no experience in programming. Thanks to years of working experience in the mechanical field, her job consists of supporting the staff and keeping everything organised to ensure smooth procedures behind the scenes.

Pablo Mestre Drake

Pablo Mestre Drake

Devops Specialist

Pablo is an experienced devops engineer who specializes in administrating modern scalable web solutions with the best technologies suited for the job. Being an open source advocate he is an expert in Linux systems and orchestrates systems with modern container solutions.

As a cuban citizen working in Brazil he supports the south american free software community by organizing events like the cubaconf.


As open source developers we are interested in transferring our knowledge about our work as often as possible. Here we are collecting the latest blog articles, talks or announcements.

Got some questions we can talk or write about? Let us know!

Datahike in ClojureScript with IndexedDB support
Title Datahike in ClojureScript with IndexedDB support
Description We demonstrate the upcoming ClojureScript support of Datahike.
Author Wade Dominic
Using Datahike’s Java API to build a web application
Title Using Datahike’s Java API to build a web application
Description We demonstrate the new Java bindings in a Spring boot application.
Author Chrislain Razafimahefa
Scicloj Meetup Talk Slides
Title Scicloj Meetup Talk Slides
Description An introduction to datalog and datahike. Presented at the scicloj online meetup on 14th Oct 2019.
Author Konrad Kühne
An Introduction to the Hitchhiker Tree
Title An Introduction to the Hitchhiker Tree
Description The goal of the Hitchhiker tree is to wed three things: the query performance of a B+ tree, the write performance of an append-only log, and convenience of a functional, persistent data structure.
Author Christian Weilbach


Having worked with large corprations as well as small startups, we are able to adjust to different environments.

We are happy to help you with your digital challenges!

Client University of Heidelberg
Project M-Tool.
Client Scarlet Global Holdings Ltd
Project Datahike development.
Client Swedish Public Employment Service
Project Development of additional features in Datahike.
Client Homebase
Project Datahike consulting and open-source development.
Client Vurderingsportalen (Danish tax office)
Project API integrations.
Client LionCommerce
Project Dashboard for amazon web campaign management.
Client Commsor Inc.
Project Implementation of integrations for a platform giving an overview over multiple marketing channels.
Client Heidelberg Cement AG
Project Development of customer portal.
Client Oxford University
Project Development on probabilistic programming language system Anglican.
Client TWT Health GmbH
Project Review of medical assistance application for Parkinson patients.
Client 100 Worte GmbH
Project Design and development of a data-intensive information system for emotional text analysis. Product development from architecture design to development and operations.
Client Economic Networks Limited
Project Development on an innovative functional blockchain exchange system. Design consulting for evolutionary architecture.
Client Heidelberg University
Project Collaboration with the Psychological Institute. Development and operation of an Android app in combination with a backend system and desktop application used for psychological research.
Client UG
Project Creation of a review web application for business end-users with integration of geo data.
Client caprimed GmbH
Project Design of mobile web API for dental online marketplace. Development of Android application, API mockup and API testing framework.
Client Exzellenzhotel Heidelberg
Project Design and implementation of a multi-lingual, isomorphic content management system.
Client Apfel GmbH
Project Design overhaul of legacy API and database for IOT application in industrial storage towers.
Client Brandagram GmbH
Project Development of an Android camera app with live filters, using a self-made OpenGl pipeline.
Client MatchRider UG
Project Development of Android application and extension of web system for car sharing application.
Client Biomedical Informatics Heidelberg
Project Statistical analytics of medical data.
Client Keatec GmbH
Project Deep-Learning based system for a callcenter application.

Open Source Projects

Our team is deeply invested in the Clojure and AI community. We advocate open source technologies and contribute to improve the modern web.

Support our ideas for a better world!

Project datahike
Description A durable datalog database adaptable for distribution.
Project datahike-benchmark
Description Measuring of datahike performance.
Project datahike-server
Description Datahike remote system.
Project replikativ
Description An open, scalable and distributive infrastructure for a data-driven community of applications.
Project anglican
Description A probabilistic programming language to leverage your domain knowledge and data to infer business critical information.
Project konserve
Description A clojuresque key-value/document store protocol with core.async.
Project kabel
Description A library for simple wire-like connectivity semantics.
Project hasch
Description Cross-platform (JVM and JS atm.) edn data structure hashing for Clojure.
Project incognito
Description Safe transport of unknown record types in distributed systems.


We build on a diverse set of collaborations.

Team up with us as well!

Partner OiCOS
Description OiCOS is a technology and research company that bridges the gap of the application of economic models in IT systems in order to provide dynamic governance solutions for heterogenous human-machine ecosystems.
Partner Homebase
Description Homebase keeps local data in sync so you can build fast and collaborative React apps.
Partner Datopia
Description At Datopia, we're building an information system influenced by commercial and academic work on immutable storage: a blockchain database capable of trustlessly and inferentially interrogating histories of structured facts.