Stellenbeschreibung

think-cell is the leading data visualization software for business presentations. Our mission is to offer the most intuitive user interface for generating complex data-driven charts and slides, while at the same time ensuring seamless integration with Microsoft Office. We work on challenging visualization problems, reverse-engineer Microsoft’s code, and reinvent how slides are created. think-cell is the only German company funding the C++ ISO committee delegation, so there is a good chance that the components we invent will find their way into the standard.

We are looking for bright, creative Developers with a solid theoretical background. Our team of Developers consists of a wide range of people, from recent graduates in Computer Science, Physics, and Mathematics to developers with 10+ years of experience. A university degree or work experience with C++, together with a fresh and creative problem-solving approach would be an excellent combination for the role. We love working with talented people, whether you are a student, a fresh graduate, or a C++ expert, therefore our recruitment process is skills-based consisting of tasks related to the role.

You will work largely independently and will be responsible for the whole range of activities when implementing a new feature. You should be able to look at a problem from the user's perspective and discuss abstract concepts with fellow developers. We expect each of our developers to do architecture, design, implementation, customer feedback, and bug fixing, rather than splitting these activities between several people. We thus put everyone in control of their own work.

At think-cell, there are no deadlines and no scheduled meetings. A feature is ready to be released when you are convinced that you have implemented the best possible solution. Meetings take place as needed, with only the people who are actually involved being required to be present. At any time in the process, ideas, suggestions, and criticism from anybody in the hierarchy is welcome and is seriously considered. Your ideas are welcome, even if they mean that we have to change a lot of code to make things better.

We have published several scientific articles in the areas of Artificial Intelligence and Computer Graphics and we will encourage you to do the same. We sponsor visits to conferences and have close relationships with universities and research institutes in the U.S. and Germany.

Here is what we offer in a nutshell:

A highly competitive salary from the start and a raise to EUR 130,000 annually after only one year
Support with relocation to Berlin and an apartment for the first month
Option to work fully remotely
Lifestyle-friendly working hours, no deadlines, no overtime!
No scheduled meetings
An international team of brilliant minds
A flat organization with respectful colleagues and plenty of room for your ideas
A working environment that is driven by the strive for excellence

Anforderungsprofil & Qualifikationen

Do you believe in beauty when it comes to programming? Do you have a vivid interest in elegant algorithms? Are you fluent in C++? If so, we would like to meet you.

About our software
Our focus is on business slides (as opposed to more artful applications) because they offer great potential for automation of layout tasks that are traditionally performed by PowerPoint users themselves. Challenges are plenty: from a solid understanding of what makes a good layout and which guidelines are followed by humans who do manual layout, to algorithms that produce an acceptable output fast enough for interactive slide design, to a graphical user interface that supports our new, original approach to slide layout in a way that is easy to understand yet unobtrusive, to solid technical solutions for automatic bug reporting and automatic updates, to compatibility with third-party software on the computers of half a million users.

Here are some highlights of what we have done.

Language

Everything we do is C++. Even our customer portal is written in C++. There is some Assembler glue code where it is necessary, and our build scripts are written in Python, but other than that think-cell is all about C++.
We closely track the latest versions of our compilers, Visual C++ and Xcode, so we can always use the latest C++ standard features as soon as they become available.
We fund the working group for programming languages of the German Institute for Standardization (DIN). Some of our employees are members of this committee and vote in the international standardization process of ISO/IEC C++.
We sponsor the Standard C++ Foundation helping them to promote the understanding and use of modern Standard C++ on all compilers and platforms.

Library

We use Boost throughout our code, e.g., Boost.Spirit for parsing.
We have our own range library, in the same spirit as Boost.Range or Eric Niebler’s range-v3, but going further, for example, by unifying internal and external iteration. We gave a talk about it, and most of the code is public.
We develop our own cross-platform library to support Mac and Windows with a single code base.
We have our own reference-counting and persistence libraries to save and restore whole object trees.
We have an extensive bug reporting infrastructure. Assertions and error checks stay in the release code, and our software automatically reports bugs to our server. The server analyzes the bug, categorizes it and files it in a database that all developers can access. If an update fixes the bug, the user can download the update directly from a bug response web page.

Algorithms

think-cell was founded on the idea for an algorithm for automatic slide layout, and we are still on an exciting journey towards that ambitious vision. You can see our most recent release in action!
We developed a new algorithm for automatic point cloud labeling that allows labels to be positioned away from the actual points.
We developed a new algorithm for automatic column chart labeling.
We are working with John Forrest – author of the linear solver CLP – to make his simplex code faster on our kind of problems.
We developed many generic data structures that are not in C++ or Boost, for example, partitions.
Our software not only produces charts, it is also able to read them back from the paper. For our chart recognition tool, we rely on OpenCV and the Leptonica Image Processing Library.

Reverse Engineering

We do lots of reverse engineering with the disassembler IDA from Hex-Rays, in order to achieve things that are not possible via the documented Microsoft Office API.
We wrote probably the best function hooking engine out there. On each start of our software, we patch the Microsoft Office executables in memory. Rather than hard-coding patch addresses, we search for small chunks of assembly code to be robust against minor changes in the executables.

Interested?
Please apply here: