Candidates 71
$7000 / mo
≈ $84000 / year net
Senior Software Engineer | Backend | Tech stack: TypeScript, NestJS, PHP, Laravel | Experience in Healthcare, Marketplaces, Cryptocurrency | Specialize in Software Development & Architecture, OpenAI Integration
Ukraine · 7 years of experience · Upper-Intermediate ·Published yesterday · In passive search
Ukraine · 7 years of experience · Upper-Intermediate ·Published yesterday · In passive search
Throughout my career in IT, I have contributed to the development of high-load marketplaces with more than 1 million users, gained practical experience in developing a SaaS platform for providing accessibility services, and acquired expertise in different domains such as healthcare, cryptocurrency, CRM, etc.
Expertise:
- Software Development & System Architecture: Proficient in designing scalable, high-availability system architectures using TypeScript, NestJS, PHP, Laravel, and adhering to best practices in code quality, security, and maintainability.
- Performance Optimization: Expert in analyzing and optimizing system performance.
- Cross-Domain Solutions: Experienced in adapting to various technology environments, including healthcare, cryptocurrency, CRM, etc.
- Continuous Learning & Innovation: Committed to regularly implementing the latest trends and tools in software development.
- Improved the auto-moderation process efficiency by 57% with the integration of OpenAI in a high-load marketplace utilizing a microservices architecture.
- Boosted user purchasing satisfaction by 84%, thanks to seamless integration of new payment systems within our platform.
- Implemented a system event tracker linked to Big Data, enabling the construction of an insightful statistical dashboard, resulting in enhanced decision-making capabilities.
- Introduced a notifications infrastructure that delivers real-time updates across multiple platforms such as Slack, SMS, and email, increasing operational responsiveness by 62%.
- Spearheaded the development and successful launch of a Software-as-a-Service (SaaS) platform for accessibility services, streamlining client access to these essential offerings.
$5500 / mo
≈ $66000 / year net
Senior Full Stack JS/PHP Developer
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published yesterday
My expertise spans across backend and frontend domains, with a strong command over architectural considerations.
I write efficient, scalable code that stands the test of time.
My focus is on optimizing performance bottlenecks and solving intricate challenges with proven solutions
Years of experience with technology:
PHP 12, Node.js 7, Yii 8, Laravel 5, Symfony 4, MySQL 9, Vue.js 5, ReactJS 2, svelte 1, MongoDB 2,Nginx 6, linux 7, AWS 4, jQuery 4, typescript 4
- Participated in calls with potential customers as a Lead Technical Specialist
- Resolved a longstanding issue with UI freezing.
- Optimized a critical process, reducing its duration from one hour to just six minutes.
- Conducted optimizations that eliminated CPU steal time on the project, enhancing overall performance and user experience.
- Participated in project assessment, architecture development, and technology selection for more than 20 projects, ensuring technical excellence and compliance with modern industry standards.
## Successes that I can highlight lately:
- Successfully optimized project performance by reducing CPU (weekly average) load from 82.2% to 2.75%.
- Significantly improved the performance of a critical part of the project, reducing execution time (avg) from 23937 ms to 48 ms, an improvement of approximately 99.8%
- Improved another aspect of the project by reducing the average execution time from, 41623 ms to 20 ms, achieving a 99.95% enhancement.
- Optimized annoying delay from 901.6 to 5.8 ms, which improved by 99.3%. Reduced api response from 912 KB to 2.1 kB reduction is approximately 99.77%.
- Designed a CI/CD system for automatically creating builds across all major platforms,
- Successfully trimmed the search index size from gigabytes to several megabytes, significantly enhancing system efficiency and search performance
$3300 / mo
≈ $39600 / year net
Magento Full Stack Developer
Ukraine · Dnipro · More than 10 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · Dnipro · More than 10 years of experience · Upper-Intermediate ·Published yesterday
Equipped with a diverse skill set of web application development, web architecture and cloud management.
Equally efficiently working in solo or collaborate in a team.
Skills:
Languages:
- PHP, JS, C++, Delphi
DB Technologies:
- Mysql, MongoDB, Redis
Search Platforms:
- Solr, Elastic Search, Sphinx
PHP Frameworks:
- CakePHP, Yii, CodeIgniter
Frontend technologies:
- HTML, CSS, LESS/SASS
Javascript Frameworks:
- JQuery, JQuery UI, Prototype, KnockoutJS, RequireJS, UnderscoreJS
Web technologies:
- Node-Red, PHPUnit, Selenium, Jmeter, Rabbit MQ, Gearman, Memcached, Varnish, Nginx, Apache, Gulp
Other:
*nix systems, AWS, Relic, Amazon SES and Load Balancers
Worked on international Magento, CakePHP, Magento 2 projects in English-speaking teams for over 10 years for SQLI(Redbox), Ewave, local companies.
З найцікавіших - це побудова middleware за допомогою NodeRed - яке віддавало для Magento 2 PDP сторінки специфічну щодо продукту інформацію зі стороннього сервісу (теги для свійської худоби Allflex.com)
І т.д.
$4500 / mo
≈ $54000 / year net
PHP Developer
Ukraine · 10 years of experience · Intermediate ·Published 1 May · In passive search
Ukraine · 10 years of experience · Intermediate ·Published 1 May · In passive search
I try to use last and most effective approaches to development software.
Have been a great experience with refactoring and supporting of legacy code.
$2000 / mo
≈ $24000 / year net
Laravel Developer
Ukraine · 3 years of experience · Intermediate ·Published 30 April
Ukraine · 3 years of experience · Intermediate ·Published 30 April
CodedInn · Full-time
Aug 2022 - Present · 1 yr 8 mos
Kiev, Ukraine
- Support and refinement of current projects on Laravel.
- Development of new projects on Laravel.
- Development API on Laravel.
- Writing Tests on Laravel.
PHP Developer
IDAP · Full-time
Oct 2021 - May 2022 · 8 mos
Kyiv, Ukraine
Skills: PostgreSQL · Elasticsearch · Redis · JIRA · Flexible programming methodology · Agile · React Admin · Symfony Framework · Symfony · React.js · Yii2 · JavaScript · jQuery Skills.
PHP Developer
StableFlow · Full-time
Mar 2021 - Sep 2021 · 7 mos
Kharkov, Kharkov region, Ukraine
Skills: Zend Framework · Yii2
PHP Developer
UAITLAB. Ukrainian IT laboratory
Nov 2020 - Mar 2021 · 5 mos
Kyiv, Ukraine
Skills: Yii2 Parser
PHP Developer
FSM, SIA · Full-time
Jun 2020 - Nov 2020 · 6 mos
Ivano-Frankivsk
- Support and refinement of current projects.
- Development of new projects.- Support and refinement of current projects. - Development of new projects.
Skills: Yii2
Develop on react / node.js
$2500 / mo
≈ $30000 / year net
Full Stack Developer
Ukraine · Dnipro · 3 years of experience · Intermediate ·Published 29 April
Ukraine · Dnipro · 3 years of experience · Intermediate ·Published 29 April
Closely worked with the key features of Laravel like authorization, complex queries with various eloquent model relationships, queues, scheduler/cron, horizon, Laravel events, websockets with Laravel echo server and etc.; was writing bot services for Telegram, Viber, Facebook.
As for front-end development, I primarily have deal with technologies like Vue.js, Inertia, Livewire, Alpine.js, also I could work with raw JS, jQuery, React.
Earlier as a student, I studied languages including Pascal, C/C++, JavaScript, HTML, and CSS. During postgraduate time I developed a C++ GUI app with Qt libraries for plotting graphs operating on Linux OS. Because of scientific activity I have an experience of developing and research physical models (e.g. 1D Bragg structure) within MATLAB environment. During roughly the same period, I was developing several websites using PHP, MySQL, JavaScript, HTML, and CSS.
Implemented numerous API integrations for third-party services, authentication services oauth2 based on Passport and Sanctum.
Developed Stasis app of an outgoing calls for the Asterisk service.
Performed project decomposition into individual services
$2500 / mo
≈ $30000 / year net
Software engineer
Ukraine · 5 years of experience · Intermediate ·Published 29 April
Ukraine · 5 years of experience · Intermediate ·Published 29 April
I write code with an eathy and simplicity for problem solving, because simple code contains fewer bugs and is easier to maintain.
The main focus is on online stores and solutions associated with them.
I have experience in implementing fairly large solutions from scratch for specific business needs.
Worked with laravel, elasticsearch, manticore search, mailisearch, redis, mongodb, mysql, php5/7/8, React, Redux, AWS EC2, AWS RDS, AWS DocumentDB, Ebay API, Jenkins, Yii2, OpenCart 2, OpenCart 3 and wordpress.
Mobile game dev using Java (Tile-matching us LibGDX, Spine - 2D animation for games, game releaset NDA), make logic for using resources, management memory using.
SWIFT 4.2 IOS mobile app for learning (using Alamofire, auto layout, AVFoundation
YII do not offer! (worked, I know, I don't practice)
$3000 / mo
≈ $36000 / year net
Full stack developer Node.js, Python, PHP
Ukraine · Dnipro · More than 10 years of experience · Upper-Intermediate ·Published 29 April
Ukraine · Dnipro · More than 10 years of experience · Upper-Intermediate ·Published 29 April
I can develop both a project from scratch and support old projects.
$2200 / mo
≈ $26400 / year net
Front-end developer
Ukraine · 4 years of experience · Intermediate ·Published 26 April
Ukraine · 4 years of experience · Intermediate ·Published 26 April
libraries and frameworks: jQuery, Twitter Bootstrap3/4, wordpress, shopify
dev tools: git, gulp, sass/less, brackets, netbeans, vs code
graphic editor: Adobe Photoshop, Zeplin, Figma;
$3000 / mo
≈ $36000 / year net
PHP Developer
Ukraine · 10 years of experience · Intermediate ·Published 25 April · In passive search
Ukraine · 10 years of experience · Intermediate ·Published 25 April · In passive search
Technologies stack used at last time:
- PHP 7.3-8.2
- JavaScript, jQuery
- MySQL, MongoDB, Clickhouse, Elasticsearch (ELK stack)
- Linux, Docker
- CSS, Bootstrap, HTML
- Nginx
- Redis, RabbitMQ
- Git, Jira, Confluence, Bitbucket, Bamboo, Github
Also known and used earlier:
- Laravel, CodeIgniter, Kohana, Yii, SlimFramework
- Vue, Grunt, Gulp, Webpack,
- MariaDB, Sphinx
- SASS, LESS,
- Apache
- Memcache, Memcached