Nicolas Mattia

I am a software engineer with a passion for functional programming,
correctness and robustness. I like simple solutions.


Software Engineer at Tweag I/O

I have been working as a Haskell consultant at Tweag I/O since September 2016. I have lead projects from when they were moonshots to production-ready products.

Platform Engineer at Pusher Ltd.

I worked at Pusher Ltd. in London from September 2015 to July 2016. One of my key lessons at the job was that with every million users comes a million ways to break a platform.


2013 – 2015

Msc, Information Technology & Electrical Engineering – ETHZ, Zurich

Graduated in Systems & Control from the ITET department.

2012 – 2013

Erasmus – TU Wien, Vienna

Erasmus year in Vienna as Elektrotechnik/Bau-ingenieur.

2010 – 2013

BSc, Micro-Engineering – EPFL, Lausanne

Graduated as a Microtechnician from the MT department.

Technical Experience

Open Source

I contribute to the Open Source projects that I use in my work regularly, either to bring attention to an issue, to directly fix a bug, or to submit new features. In addition, I maintain a few projects of my own, including:

Haskell is my language of choice for most projects. I have learned to leverage its powerful type system on many occasions, have contributed to core libraries, and have a good understanding of its runtime characteristics.

Nix is my go-to package manager and build system. I contribute to Nixpkgs, have deployed Nix in production to teams of up to 40 engineers and have acquired an excellent understanding of its model, capabilities and limitations.

I am proficient with Go, Java, Ruby, C/C++, Kubernetes and Terraform.

I have a basic knowledge of Rust, Python, JavaScript, Erlang, LaTeX and x86 assembly.

Academic & Speaking

A Fully Functional Webapp – Talk at WebZuri – September 2017
Discussions around and examples of functional programming stacks for web applications.

Dominating the Stone Age – Master’s Thesis
Solved graph-theoretic problems using networks of finite-state machines.

Toehold DNA Languages are Regular – Publication
By Sebastian Brandt, Nicolas Mattia, Jochen Seidel, and Roger Wattenhofer, 2015. In ISAAC’15.

Parallel DNA – Semester Project
Modeled and studied parallel, DNA-based computations.

Parallelizing the Schrödinger Equation – Semester Project
Developed a fast parallel algorithm for solving the Retarded Green’s Function.

Beyond technology
+41 79 717 63 31 • Betrastrasse 74 – 8003 Zurich, Switzerland