Résumé

• About 30 years of experience developing advanced system level and scientific software in the industry, an academic setting, and in the free software community
• Through scientific background and experience with a wide range of languages and techniques, very proficient with domain-specific modeling and design
• Very experienced with portable, platform independent development, from prototyping over testing to deployment
• Experience with medical software development, as well as standardization work
• Many years of experience in mentoring developers and coordinating projects

Skills

Software Engineering:

• Programming languages: C++, Python, Java, bash, …
• Scientific programming: Molecular dynamics, Monte Carlo, Dynamical Systems, Signal- and Image Processing
• System programming:
  • Embedded Systems (Yocto), GNU/Linux, Windows
  • Distributed Systems (IPC, RPC, HTTP, sockets)
  • Parallelism (SIMD, threads, OpenMP, MPI, CUDA)
  • Libraries and frameworks: Qt, VTK, boost, SciPy, Jupyter
• Software engineering and project administration:
  • OOP, OOA/D, UML, Multi-Paradigm design, Generic Programming
  • Project coordination and administration using github, bitbucket, JIRA, …
  • Daily use of development tools like git, gcc, cmake, python, jupyter, postgresql, docbook, docker
• Standardization work
  • Chair HPEC Working Group at OMG
  • Maintain VSIPL / VSIPL++ standards

Languages

• German, English, French: spoken fluently and daily

Experience

THINK Surgical (2018 – present)

Principal Software Engineer

• Design and develop build infrastructure and software supply-chain management
• Design and develop 3D tracker simulator and test methodology for navigation software system
• Design interfaces and data models for patient records and implant modules, to support entire workflow from preoperative planning to post-market surveillance

Continuum Analytics (2015 - 2017)

Senior Software Engineer

• Design and develop numerical and data-processing libraries and support tools using a combination of Python, C,and C++.
• Develop build and packaging infrastructure in support of the Anaconda distribution.

Mentor Graphics (2010 - 2015)

Software Architect

• Design and develop numerical libraries in the High Performance Embedded Computing (HPEC) space.
• Port HPC code to various platforms including Cell/B.E. and NVidia CUDA.
• Develop integrated development workflows from prototyping (Matlab, SciPy) to target-specific optimization (C++, compiler intrinsics, etc.)
• Manage releases for various products.
• Coordinate architecture-level efforts related to various projects.
• Work on VSIPL++ standardization within OMG.
• Co-chair HPEC Working Group within OMG.

CodeSourcery (2005 - 2010)

Sourcerer

• Design and develop numerical libraries in the High Performance Embedded Computing (HPEC) space.
• Port HPC code to various platforms including Cell/B.E. and NVidia CUDA.
• Manage Sourcery VSIPL++ releases.
• Work on VSIPL++ standardization.

ORTHOsoft (2001 - 2004)

Software Developer

• Design and develop a new document-centric architecture based on an Electronic Patient Record. This includes various services such as persistence, recording / playback, and logging, and is based on XML (using DOM and SAX APIs).
• Design and develop a portable component model that was used to refactor (i.e. modularize) the whole product suite.
• Develop and maintain the Motion Capture component with its principal implementation using the NDI Polaris Tracking System. Bind this component to a scene graph (based on openGL and OpenSceneGraph) for real-time rendering of tracked surgical instruments.
• Develop a scripting frontend (python) for a number of components using boost.python
• Enhance the development environment by writing a new build system (using MSVC++, gcc, MipsPro, make, autoconf), a new unit testing framework (using qmtest), code documentation tool (using synopsis), and internal web site (using apache, a wiki, in-house cgi scripts, etc.).
• Enhanced the software’s portability to now support MS Windows, GNU/Linux, and IRIX.

The Berlin / Fresco Project (1998 - 2003)

Architect and Principal Developer

Fresco is a highly modular, multi-threaded, distributed 3D enabled windowing system, based on a persistent scene graph with server-interpolated high color/spatial resolution and server-side UI components.

• I designed and implemented most of the system using CORBA IDL, C++, Python. The implementation contains various system level and graphics libraries to make it highly portable, scalable and extensible. Lower level APIs that are being used include openGL, POSIX, CORBA 2.3, etc.
• I implemented the build system for Berlin using tools such as make, autotools, perl
• I presented the project at various international conferences, such as the Ottawa Linux Symposium (Canada) or the LinuxTag (Germany)

SIGGRAPH Montreal (2001 - 2002)

Member of the founding comitee

The Synopsis Project (2000 - present)

Coordinator and Lead Developer

Synopsis is a modular source code inspection tool, mainly designed to generate reference manuals from inlined documentation. It supports a variety of languages through the use of pluggable parsers, as well as a wide range of output generators, such as HTML, XML, or UML graphs.

• I designed the overall layout of the framework, the data flow, as well as the class hierarchy used.
• I implemented the core of the application (in python), as well as some of the parsers and formatters (C++, python).

Education

• Université de Montréal (1996 - 2000)

  graduate studies in biophysics about ion transport through biological membranes

• Humboldt Universität zu Berlin (1993 - 1996)

  M.Sc. Physics, Cluster Formation in Non-Equilibrium Systems

• Humboldt Universität zu Berlin (1989 - 1992)

  B.Sc. Physics

Publications and conferences

• Stefan Seefeld, Faheem Sheikh, Brooks Moses, A MATLAB-to-Target Development Workflow using Sourcery VSIPL++, IEEE HPEC Conference 2012

• Stefan Seefeld, Hybrid Programming with C++ and Python using Boost.Python, Talk at Bossa Conference 2009

• Stefan Seefeld, Fresco, Talk at FOSDEM 2004

• Stefan Seefeld, Daniel Odermatt, Computer Assisted Surgery, SIGGRAPH Montreal conference 04/2002

• Wonpil Im, Stefan Seefeld, Benoît Roux, A Grand Canonical Monte Carlo-Brownian Dynamics Algorithm for Simulating Ion Channels, Biophys. J. 2000 79: 788-801

• L. Schiemansky-Geier, S. Seefeld, V. Buchholtz, Making spatial structures by ratchets, Ann. Phys. 2000 9: 705-712

• Stefan Seefeld, Berlin - neue Wege für grafische Benutzeroberflächen, LinuxTag 2000, Proceedings

• Stefan Seefeld, Graydon Hoare, Berlin: taming premature rasterization with structured graphics, Talk at the Ottawa Linux Symposium 2000

• Stefan Seefeld, Graydon Hoare, Berlin: a Structured User Interface, Ottawa Linux Symposium 2000, Proceedings