comparing b3ae3f7a1b4fda70e07ca0a7be80fbbcebe2b43e and master on hauleth.dev/blog

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static/_headers

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         X-Frame-Options: DENY

     

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         X-XSS-Protection: 1; mode=block

     

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         X-Clacks-Overhead: GNU Terry Pratchet

     

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         Content-Security-Policy: default-src 'self'; script-src 'self'; connect-src 'self'; img-src https:

     

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         X-Clacks-Overhead: GNU Joe Armstrong

     

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         Content-Security-Policy: default-src 'self'; script-src 'self'; connect-src 'self'; img-src 'self'; frame-src 'none'; frame-ancestors 'none'; form-action 'none'; base-uri 'self';

     

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         Permissions-Policy: accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=(), clipboard-read=(), clipboard-write=(), gamepad=(), speaker-selection=()

     

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         Referrer-Policy: no-referrer-when-downgrade

     

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         Referrer-Policy: strict-origin-when-cross-origin

statichost.yml

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       image: ghcr.io/getzola/zola:v0.21.0

     

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       command: build

     

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       public: public

     

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       image_entrypoint: true

     

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       # TODO: Usa nix there

     

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       # image: ghcr.io/lix-project/lix:latest

     

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       # command: nix --extra-experimental-features nix-command --extra-experimental-features flakes run .#publish

     

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       # public: public

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templates/shortcodes/cv.md

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       ## Experience

     

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       - Supabase - 2023-2025

     

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           + Logflare - logs aggregation service

     

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           + Supavisor - a cloud-native, multi-tenant Postgres connection pooler

     

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       - Hauleth.dev - Consultant - 2021+

     

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           + DockYard/Karambit.ai - 2025

     

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               * Architectural analysis of Karambit product

     

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               * Prepared security analysis with detailed report with fixes

     

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           + Eiger - 2022-2023

     

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               * Forte.io

     

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                   - Implementation of the Interledger protocol for cross-chain transactions

     

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                   - Implemented Interledger protocol for cross-chain transactions

     

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               * Aleo Blockchain

     

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                   - Implementation of the GraphQL API for the on-chain data

     

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           + Erlang Solutions/Kloeckner GmbH - 2021 - Consultant for Elixir, Ruby, and SQL (PostgreSQL)

     

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               * Substantial query performance optimisations by optimising PostgreSQL indices

     

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       - Remote Inc. - Senior Backend Engineer - 2020-2021

     

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       - Kobil GmbH - Erlang/Elixir Developer - 2019-2020

     

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           + Maintaining MongoDB driver for Elixir

     

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           + Implemented transactions for MongoDB driver in Elixir

     

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                   - Implemented GraphQL API for the on-chain data

     

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                   - Created syntax colouring library for Aleo assembly-like language

     

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                     for smart contracts

     

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           + Erlang Solutions/Kloeckner GmbH - 2021 - Consultant for Elixir, Ruby,

     

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             and SQL (PostgreSQL)

     

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               * Optimised DB query performance by providing PostgreSQL structure

     

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                 analysis and improving indices usage

     

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           + Remote Inc. - Senior Backend Engineer - 2020-2021

     

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               * Architectural analysis of existing codebase

     

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           + Kobil GmbH - Erlang/Elixir Developer - 2019-2020

     

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               * Maintained MongoDB driver for Elixir

     

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               * Implemented transactions for MongoDB driver in Elixir

     

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       - Supabase - 2023-2025

     

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           + Logflare - logs aggregation service:

     

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               * Implemented on-the-fly decompression of incoming data that improved

     

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                 ingestion possibilities and reduced transfer usage (created library

     

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                 [`plug_caisson`][] for that purpose)

     

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               * Implemented DataDog-compatible ingestion endpoint for seamless

     

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                 transition from DataDog provider to Logflare

     

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               * Improved BigQuery pipeline workflow to reduce congestion on database

     

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                 connections

     

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               * Added support for AWS Cloud Events metadata extraction

     

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               * Improved CI usage by splitting different actions to separate steps ran

     

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                 in parallel

     

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               * Replaced dynamic generation of connection modules for PostgreSQL

     

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                 storage system with Ecto's dynamic repositories to avoid atom exhaustion

     

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           + Supavisor - a cloud-native, multi-tenant Postgres connection pooler

     

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               * Deployment management

     

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               * Optimised metrics gathering system that resulted in an order of

     

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                 magnitude performance boost

     

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               * Updated used OTP and Elixir versions from OTP 24 to OTP 27 and Elixir

     

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                 from 1.14 to 1.18

     

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               * Reduced usage of mocking in tests to improve tests performance and

     

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                 volatility, resulting in reduced CI usage and improved developer

     

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                 experience

     

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               * Implemented e2e tests against existing Node.js PostgreSQL clients to

     

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                 improve production issues

     

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               * Implemented multi-region deployment system to provide blue/green

     

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                 deployments

     

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               * Improved system observability features by making it more resilient and

     

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                 performant

     

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               * Replaced usage of `ct_slave` with newer `peer` module in OTP

     

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       - AppUnite - Full-stack Developer/DevOps - 2016-2019:

     

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           + JaFolders/AlleFolders

     

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               * 2x performance improvement by optimising PostgreSQL usage

     

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               * Reduced geo-queries using PostGIS thanks to better indices and

     

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               materialised views usage

     

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               * Implementation of the UI and brochure viewer in Vue and SVG

     

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                 materialised views usage

     

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               * Implemented UI and brochure viewer in Vue and SVG

     

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           + OneMedical/Helium Health

     

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               * Architectural redesign of application from Rails/MongoDB to

     

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               Phoenix/PostgreSQL

     

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               * Preparing hybrid deployment with on-premise/in-cloud system

     

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               * Migration of the existing deployments from MongoDB to PostgreSQL

     

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                 Phoenix/PostgreSQL

     

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               * Prepared hybrid deployment with on-premise/in-cloud system

     

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               * Migrated of the existing deployments from MongoDB to PostgreSQL

     

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       - Nukomeet - Full-stack Developer - 2015-2016

     

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       - Prograils - Junior Developer - 2013

     

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       - Viking reenactor

     

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       - Keyboard fan

     

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       - Sci-fi/Fantasy fan and Poznań's Sci-fi/Fantasy club member

     

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       [`plug_caisson`]: https://github.com/supabase/plug_caisson

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