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Julien M.

Haskell and Nix software developer
  • Suggested rate
    €481 / day
  • Experience8-15 years
  • Response rate100%
  • Response time1 hour
The project will begin once you accept Julien's quote.
Location and workplace preferences
Location
Limoges, France
Remote only
Primarily works remotely
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Reputation
8Followers
16Repos
0Gists
86Reputation
4Bronze
0Silver
0Gold
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Skill set
Top skills
Haskell
NixOS
Check out Julien's expertise
Industry fields of expertise
Telecommunications
Julien in a few words
Self-taught Haskell and NixOS free software developer since 2015,
former self-taught OCaml software developer from 2005 to 2015,
and self-taught GNU/Linux system administrator since 2010.
Most of my work so far has consisted in understanding and (re)implementing algorithms found in scientific papers, with my main focus being on correctness.
I do my best to understand what I do. I'm passioned by developing algorithms or fixing bugs. I am hardworking and a fast learner with communication skills for teaching and being accurate on technical matters.
Experience
  • CNRS/ISC-PIF
    Pro bono Nix and Haskell engineer for the French National Centre for Scientific Research, focusing on reproducibility
    PUBLIC SECTOR
    June 2023 - Today (1 year and 8 months)
    Paris, France
    Written a flake.nix based upon haskell.nix for haskell-gargantext: https://gitlab.iscpif.fr/gargantext/haskell-gargantext/merge_requests/258
    And reimplemented from scratch and improved the main algorithm for computing phylomemetic networks: https://radicle.sourcephile.fr/nodes/radicle-mermet.sourcephile.fr/rad:z2364hmzZUAGy1nKdSFa1gLSoUE2M
  • NixOS
    Developing and maintaining NixOS/Nixpkgs, focusing on security
    TECH
    January 2017 - Today (8 years and 1 month)
    Limoges, France
    Creating or maintaining dozens of packages and services for NixOS:
    https://github.com/NixOS/nixpkgs/pulls?q=author%3Aju1m
  • Haskell
    Understanding and reimplementing several scientific papers in Haskell, focusing on correctness
    TECH
    January 2015 - Today (10 years and 1 month)
    Limoges, France
    - Reimplemented parts of Utrecht University/Bastiaan Heeren's thesis [Top: Constraint solving framework employed by the Helium Compiler](https://hackage.haskell.org/package/Top) in https://hackage.haskell.org/package/lol-typing

    - Implemented CNRS/Balinski & Laraki's voting method [Majority Judgment](https://mitpress.mit.edu/9780262545716/majority-judgment/) in https://git.sourcephile.fr/majurity.git/tree/HEAD:/hjugement

    - Reimplemented parts of CNRS/LORIA's [Helios-C e-voting protocol](https://www.belenios.org) in https://git.sourcephile.fr/majurity.git/tree/HEAD:/hjugement-protocol

    - Reimplemented parts of [servant](https://hackage.haskell.org/package/servant) in https://git.sourcephile.fr/haskell/symantic-http.git and parts of [ema](https://hackage.haskell.org/package/ema) in https://git.sourcephile.fr/haskell/literate-web.git

    - Reimplemented parts of Imperial College/Jamie Willis' thesis [Parsley: A fast parser combinator library backed by Typed Template Haskell](https://hackage.haskell.org/package/parsley) in https://git.sourcephile.fr/haskell/symantic-parser.git

    - Reimplemented parts of IOHK/Matt Noonan's [Ghosts of Departed Proofs](https://iohk.io/en/research/library/papers/ghosts-of-departed-proofs-functional-pearls/) in
    https://radicle.sourcephile.fr/nodes/radicle-mermet.sourcephile.fr/rad:z3795BqJN8hSMGkyAUr8hHviEEi2H

    - Reimplemented parts of CNRS/ISC-PIF Chavalarias & Lobbé & Delanoë's paper [Draw me Science: Multi-level and multi-scale reconstruction of knowledge dynamics with phylomemies](https://doi.org/10.1007/s11192-021-04186-5) in https://radicle.sourcephile.fr/nodes/radicle-mermet.sourcephile.fr/rad:z2364hmzZUAGy1nKdSFa1gLSoUE2M
Recommendations
Education
  • Bac+2 (Math sup/spé)
    Lycée du Parc (Lyon)
    2006
    Mathematics and computer science