Position: Senior Software Engineer
Category: PHP
English level: fluent
Years of experience: 11

Some interesting things that I did:
-Rewriting SHA256 hashing function to make it more effective (for one crypto-project) (javascript).
-Writing a low-level microcontroller driver for SD-card (reading/writing) on C and Assembler.
-Creation of hardware/software protocol for transmitting power and data on 1 wire (Assembler). I created 200 devices from scratch and made a network of them.
-Reverse engineering of one of the anti-bot systems (using browser fingerprinting) and finding an approach to bypass it (it was one of the most interesting experiences that I had) (node, perl).
-Hardware and algorithm for speech recognition.
-Creating a PHP-framework from scratch and developing several projects using it.
-Creation of the math-model of the internal combustion engine (I had very old FoxPRO code, I rewrote it to javascript and then added some functionality using PID regulation and some other algorithms from the hardware and math world).
-Creation of a device for finding impurities in semiconductor elements.
-Creation of the genetic algorithm (from scratch) to find the best architecture of the artificial neural network to solve one interesting task of image recognition (fann, php).
-Creation of the part of the project that analyzed hundreds of parameters to make a decision to give a loan or not (python + django).
-Creation of the sandbox for traders to emulate the financial market and to test hypotheses of algorithmic trading (nodejs, php).
-Creation of dozens e-commerce systems using different frameworks and CMS.
-A lot of math stuff like writing libs for imaginary numbers and so on.
-13 years of experience in software development  (backend + frontend).
-I've been working on different development positions and also on management positions (>40 people in a team).
-Creation and maintenance of big projects.