Skills & Knowledge

Major programming languages

I am writing code since age 9, therefore over all these years of passionate working in engineering, I have picked many skills, and here we discuss languages I worked over 5 years with at least.

Golang

Extremely passionate about Go, as an ecosystem and language, simple, fast, compiled, small and easy to work with. I have built and contributed to dozens of projects in my programming journey, and still thinking what can in future reach the level of reliability of this language. My favorite features are cross compiling, goroutines and its simple package management service. I would use golang for most cases, specially desktop apps, cli apps, shared common libraries, web servers, database tasks.
Besides of many commercial projects and contracts, Fireback and Emi, are two flagship open-source products I have developed, and Fireback easily could be said is one of most opinionated and complicated frameworks out there in Golang.

JavaScript(?TypeScript)

When I was learning VBScript, I've realized also a language is gaining popularity which is called JavaScript. At the time VBScript was also actively used for web page interactions. My experience with JavaScript says it's gonna be around for decades to come, due to widespread, loosely typed features. Many people criticize the language for its lack of type system, that's exactly what has made it so famous and widely accepted. In fact that's its power, not weakness. Amount of lines of code I have written in JavaScript is almost countless, both in node.js, browser, electron.js, react native, ionic, pure vanilla JavaScript, and yet believe it or not, years of writing jQuery and maintaining custom created JavaScript libraries.

PHP

PHP is one of the languages that I have started my career with, earlier than 2006. Used PHP for multiple projects on proprietary CMS and CRM system, as main developer for few years. Later on in another series of WordPress custom theme development it was one of the main focuses. I have migrated a major commercial platform internal services from PHP into Golang in recent years. PHP is a magic language, easy, a simple file and it works. It got popular for the fact allows plugin systems to work perfectly, that's why many successful shop platforms, such as Magento and Prestashop are built on top of it. Loved the syntax, and its straightforward OOP model.

C

I have used C across different projects, all in micro-controller environment. I have good experience on writing reliable, memory leak free code on electronic devices. For me C is very straightforward, yet waiting to see if any language can become close to its usability in small memory systems. Mostly focused on esp-idf platform, have a good understanding of general purpose c code for small memory devices.

Major Frameworks

Understanding a language is great but most of the work usually is done on top of the major frameworks.

Angular 1...18

Started Angular since version 1 in plain JavaScript. Done 2 projects in AngularJs, created build system, cli tools for it. After release of Angular 2, I had to rewrite the project into Angular 2, which was really difficult, basically a deep rewrite. I have worked on many commercial projects with Angular, as well as Angular Material (CDK). The strength of Angular is its structure, and I love frameworks which do not depend so much on external libraries and Angular has done a perfect job in this area.

React

React and React ecosystem undoubtedly are major player in terms of front-end, server side rendering, and of course mobile development. I have started working with react since a decade ago. I loved the fact, that it's using classes, because I was coming from C# and Angular background. React major strength is that it has a small footprint, and it's a perfect tool for building fast UIs. In early days, libraries available to it were not that reliable, but in 2020+ it has changed mostly. Worked many commercial projects on react and its' ecosystem, it's one of the widest frameworks I have used alongside React Native in my career.

React Native

I have encountered React Native from its early days, when installing and running a hello world was a major challenge. Still remember, when we were hiring for React Native project at the time, a candidate just was selected, by one my colleagues due to fact he could run it in first few hours. Many things have changed ever, I have built dozens of apps in past 10 years which are in React Native, in many different categories.

ESP-IDF

Deep experience with ESP series micro-controllers using vendor SDKs (ESP-IDF). Worked extensively with advanced Wi-Fi (station/AP, provisioning, hotspot), BLE (GATT server/client), and dual-mode connectivity for IoT devices, primarily in home automation and energy systems. Experienced in FreeRTOS-based development, low-power modes, OTA updates, secure communication (TLS), MQTT/HTTP protocols, peripheral integration (GPIO, UART, SPI, I2C, ADC), and real-time device control.

Node.js (ecosystem)

Deep and competent knowledge has been built around the node.js ecosystem, to build different kinds of products, mostly focused on traditional backend. I have done pure node.js scripting in its early days, then done projects in Sails.js framework, and later on Nest.js. Nest.js is the missing part for commercial products in node.js ecosystem, and honestly a copy of Angular in backend side. I can fully conduct entire project in this.

Databases

Through my career I have faced usage of different type of databases, here I'll list the ones I feel most confident.

MySQL

Used MySQL with PHP, until to this day is a go to database for me. Worked with it's advanced features, and maintained databases, up to 100GB alone in my career. I love to write queries and avoid ORM, if possible in the projects, and I would prefer this product for its reliability.

SQLite

SQLite has appeared very handy and useful in many places. From mobile applications I have written, until micro-controllers that the only option was SQLite to store data on them. SQLite is a very powerful database, and I have reduced the database maintenance on a few projects to minimum by using it, and even storing files in it. It's quite compatible with MySQL with some small changes, and this gives the power to run similar, if not same structure on a cloud backend and micro-controller project with small amount of ram.

MongoDB

Faced Mongodb in couple of projects since its inception. Having an overall understanding of its power and limits, can be used for places the data structure is unknown, or snapshots of data is needed instead of relations between them.

Libraries

Smaller than programming languages and frameworks related to them, are the libraries which worth to mention.

Cypress testing framework.

Got hands on experience on the framework since it came out, Cypress is a great tool for doing all kind of testings. I have used it successfully both on testing front-end projects, Angular, React, and websites, as well as it used it few times for running integration tests with backend. A perfect solution to write e2e tests overall, with some challenges on cookies in the past.

Three.js (React Three Fiber)

I have experience with Three.js and React Three Fiber, creating interactive 3D web applications and immersive VR/AR experiences. I build dynamic scenes, integrate 3D models and animations, and craft engaging, responsive interfaces that combine visual appeal with real-time interactivity. Maybe tak a look at https://torabian.github.io/izadom for one of my major works in three fiber and react.js.

Docusaurus (Project documentation)

Experienced in building and maintaining documentation platforms using Docusaurus. Skilled in configuring versioned docs, custom themes, and plugins, as well as writing and structuring Markdown/MDX content. Familiar with integrating search, localization (i18n), and deployment workflows (CI/CD), ensuring scalable, well-organized, and developer-friendly documentation sites.

Katex

Katex is formula writing library, and is doing a perfect job when you need to work on scientific projects. I've used it in a product that managed question bank, and authors needed to write the formulas down, and we moved away from embedding pictures into using Katex.

Maps & Geography (Google, Open-street map)

Hands-on experience integrating Google Maps and OpenStreetMap in React, React Native, Angular, and vanilla JavaScript. Implemented custom markers, clustering, and interactive overlays (polylines, polygons, drawing tools), with event handling and map state management. Worked with Geocoding/Reverse Geocoding APIs, address autocomplete, and coordinate transformations. Familiar with map performance optimization, mobile responsiveness, and integration of third-party location services.

Jest, React Testing Library

Writing tests for logic control, mostly on non-ui interactions is a favorite task for me. When there are complicated calculations, for example in time-series operation, I'd write tests to make sure pure functions are working properly. React testing library also seems promising, I have used it to test the logic of components rendering, in React and React Native.

TinyMCE Text Editor

Many projects over past 2 decades needed a rich text editor, and TinyMCE is my favorite. I am keen to see if there will be an easy replacement, such as Gotenberg in WordPress, but still TinyMCE is one of top options to go. One of challenges I had was adding formula writing to it, using Katex and it really made me to be very focused until getting the task done.

Software skills

As a developer, not only I am focused on creating software, I also highly focused on learning other people products to both be able to do more, and as well get inspired.

Autodesk Fusion

Fusion is a Autodesk star, in CAM design and as of recent changes it's possible to do electrical. I have good experience in the product, able to create industrial elements, end to end, preparing blueprints and tool-path for machining parts.

KiCad

Kicad is one of my favorite software and I use it for designing PCB. It's open-source, missing some features but in general totally can be used for 2 layer PCB projects which I mostly build as prototypes for client or hobby. I have used software for quite sometime.

Protocols, Standards, Processes

Working on different products and industries, I have built a solid knowledge of different deep frameworks, standards, protocols as well.

MQTT

Deep experience with building MQTT centric products, which require realtime full-duplex communication between servers, devices, and client software. Implemented both client, and setup for on-premise broker, MQTT remains one of my skills, which also actively used on my own IP owned products, such as Meshora.

Bluetooth (BLE)

Strong experience with Bluetooth Classic and BLE across ESP micro-controllers, STM-based circuits, Ubuntu desktop environments, and React Native applications. Skilled in implementing GATT server/client architectures, device provisioning, pairing/bonding, and real-time data exchange. Worked with low-level drivers and vendor SDKs, as well as higher-level libraries for mobile integration, ensuring reliable connectivity, performance optimization, and cross-platform interoperability.

E-Commerce Systems

During my career, I have encountered projects which helped me to learn deeper shops systems, such as WooCommerece and Prestashop, and later on those experiences has been applied to commercial custom built systems using Node.js and Golang. Deep understanding of the online e-commerce platforms, inventory management, product info caching, custom fields, recursive category management and storage in database are unique experience in journey and shop systems.

OpenTherm

As a part of my IoT knowledge and experience, I had the chance to dig deeper in OpenTherm protocol, both as Master and Slave, writing communication code, simulations, and debugging actual boiler systems on the protocol.

Internationalization

I am specialized in creating internationalized digital products, on web, mobile, desktop and other perspectives such as documentations. Working many years in Iran, creating both right to left, and left to right products, with custom calendar system is one of my skills when it comes to building products. It goes as deep as maintaining a multilingual database system, serving different product for specific region and all necessary planning and configuration in between.

WebSocket

In early days, I had written a chat system with long-polling and even page refresh in IE browser. Since WebSockets came out, if was revolutionary for many projects which worked later on. I have deep experience on both sending text and binary data over WebSockets, managing load-balanced systems notification via sockets, and even streaming audio content, are a part of my history.

AppStore and Google Play Management

I can control the entire application release process, from codebase until it's reachable via stores to end user. This process includes setting CI/CD, creating products in stores, deep knowledge of approval process specially for Apple, details touching design, behavior, texts and so on. Every application finally needs to be released, and with my experience it would forward with smallest hassles down the road.

Advanced cross-platform data structure synchronization

One of my strongest skills in overall software engineering I have created is to share the data layer, in backend, with mobile apps, desktop apps and web app partially, in order to give an application offline feature with the same exact API signature. This is achieved by a series of processes, coming from selective api choices, and compiling parts of backend written in Golang or C, and running them as system service.

Language Skills

Learning languages, since childhood was a hobby for me. I still remember how many nights I have spent until late, to read one more page, here you can see an overview of languages I know, and plan to learn

Construction Skills

I can carry independently entire operation of building single family concrete based houses, compatible with Polish laws.

Heating system design and implementation (G3)

Independent designer of underfloor heating, gas, and multi-room systems using Vaillant and Viessmann solutions. Experienced in heat load calculations, hydraulic design, and PEX piping layout, including manifolds, pumps, and boilers. Skilled in zoned and smart control integration, delivering efficient and standards-compliant system designs.

Residential electric design and implementation (G1)

Experienced in residential electrical installations, including circuit design, load calculation, panel layout, and wiring for lighting, sockets, and dedicated systems. Skilled in reading and creating technical schematics, selecting protective devices, and ensuring compliance with safety standards and regulations.

Smart and intelligence solutions

Proficient in designing and implementing smart home systems, including automation of lighting, heating, and security. Experienced with integrating sensors, controllers, and IoT devices, enabling remote control, energy optimization, and scalable home automation solutions.

Semi/Non-professional licenses

Besides professional life, I have some other licenses which allows me to conduct tasks.

• C Driving license, and C+E driving license for long vehicles (EU)
• Motorboat license, and Sailboat license issued in Poland
• PADI Diving license.