Candidates 41
$2500 / mo
≈ $30000 / year net
Full Stack Developer
Ukraine · Dnipro · 3 years of experience · Intermediate ·Published today
Ukraine · Dnipro · 3 years of experience · Intermediate ·Published today
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
$1000 / mo
≈ $12000 / year net
Full Stack Web Developer
Ukraine · Dnipro · 2 years of experience · Intermediate ·Published today · In passive search
Ukraine · Dnipro · 2 years of experience · Intermediate ·Published today · In passive search
Luxoft, a DXC Technology Company/Halliburton - Dnipro, Ukraine/Houston, TX
The main scope of work was project maintenance - finding and fixing existing issues, so I have a lot of experience in investigating defects, as well as refactoring and working with legacy code.
Also during my work a number of new features were implemented, the realization of which required a strong knowledge of asynchronous programming, front-end framework and a clear understanding of SOLID principles.
$6000 / mo
≈ $72000 / year net
Backend Engineer
Ukraine · 6 years of experience · Upper-Intermediate ·Published yesterday · In passive search
Ukraine · 6 years of experience · Upper-Intermediate ·Published yesterday · In passive search
Cloud ERP solution for ship management. Full-stack developer role with a focus on back-end. General responsibility - implementing API, covering functionality by tests, connecting service with another part of the system, transferring functionality from legacy monolith applications to new microservices, negotiating product solutions, and developing architecture from scratch.
Technical stack: Typescript, TypeORM, MSSQL, jest, docker, RabbitMQ
Peppy - peppy.health 03.21-08.22
Digital healthcare project to connect people and experts in the application. Full-stack developer role. Working on implementing API and Admin panel. Creating new functionality, making existing functions more flexible and configurable for different customers. Supporting mobile developers to connect applications to our API
Technical stack: NestJS, TypeORM, MySQL, Webhook, GCP, Docker, React + MaterialUI, Jest, Firebase, Unit+E2E tests, Sendbird, CustomerIO
MARS MGIS 04.20-03.21 Product is an application to measure a corporation's supply chain environmental impact. It requires data import/input by users, a complex data model, a permissions system, an API and a validation mechanism. It was developing a mediator service between end users and ML service. Service manages massive data, validates and prepares it for processing by service using machine learning.
Technical stack: NestJS, TypeORM, PostgreSQL, Microservices, Docker, Python
Pavlo Kalinichenko Full-Stack Developer
Selina - selina.com 08.19-04.20 Hospitality company to provide accommodation with recreation, wellness and local experience. Full-stack developer role with a focus on back-end. General efforts on the project - rewriting legacy monolith back-end applications to microservices with new functionality. Improve code style, cover endpoints by tests, and code review for other developers. General responsibility in the team - supporting backward capabilities with old services and connecting with other teams to align mobile applications and admin panels with API. Creating new database architecture from zero. Working with product managers on user stories and implementing new features.
Technical stack: NestJS, Microservices, TypeORM, PostgreSQL, MongoDB, Neo4J, AWS, Docker, Jest, React+MaterialUI
For the healthcare app - created a service from scratch to communicate between doctors and patients by fast entire surveys and questions.
Get rid of bottlenecks with complex solutions and significantly save time and money for the company
$5500 / mo
≈ $66000 / year net
Senior Full Stack JS/PHP Developer
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 2 May
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 2 May
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
- 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
$3000 / mo
≈ $36000 / year net
Full Stack Developer (Node.js & Angular)
Ukraine · Dnipro · 8 years of experience · Upper-Intermediate ·Published 1 May
Ukraine · Dnipro · 8 years of experience · Upper-Intermediate ·Published 1 May
Role: Fronted developer
Stack: Angular 14
Key tasks: angular components
02/2021 - 10/2023, Platform for a company specialising in email marketing in the UK. Allows companies to analyse their audience
Role: Full-stack developer
Stack: Node.js, Sails.js, Neo4j, Mocha, Angular 11+, WebSocket, S3, SNS, AWS lambda, Redis, Redshift, Chart.js, Nodemailer, Bull (queue system)
Key tasks: REST API, queues, unit tests, angular components, AWS lambda function, CSV file validation, SNS, web sockets, documentation
05/2018 - 06/2020, Uber for Kids: parents can delegate tasks such as taking children to school, after-school clubs
Role: Backend developer
Stack: Node.js, PostgreSQL, ReTool, Mocha, Stripe, Sendgrid, Segment, Firebase (push service), Twilio, Slack webhooks, Swagger, Bull (queue system)
Key tasks: REST API, queues, unit tests, admin panel in ReTool, payments, firebase(push notifications), swagger, documentation
- Involved in the inception and development of projects from scratch
- Developed RESTful APIs
- Skilled in handling high-volume SQL queries
- Wrote technical documentation
- Communicated with client interactions regarding task status updates and new feature discussions.
- Flexible working schedule
- Friendly team
$1200 / mo
≈ $14400 / year net
Wordpress developer
Ukraine · Dnipro · 3 years of experience · Pre-Intermediate ·Published 1 May
Ukraine · Dnipro · 3 years of experience · Pre-Intermediate ·Published 1 May
$1800 / mo
≈ $21600 / year net
Frontend/Fullstack Developer
Ukraine · Dnipro · 2.5 years of experience · Upper-Intermediate ·Published 29 April
Ukraine · Dnipro · 2.5 years of experience · Upper-Intermediate ·Published 29 April
• Enhanced a B2B2C solution catering to health and wellness brands, resulting in a client base growth from 2 to 20+.
• Engineered advanced features including interactive charts, tables with intricate math formulas, and a versatile CSV importer/exporter.
• Integrated Stripe for secure payment processing, implemented Auth0 for authentication, and seamlessly integrated third-party services like Mailchimp and Twilio to enhance functionality and foster user engagement.
$2500 / mo
≈ $30000 / year net
Developer
Ukraine · More than 10 years of experience · Pre-Intermediate ·Published 26 April
Ukraine · More than 10 years of experience · Pre-Intermediate ·Published 26 April
- Knows HTML and CSS, c#, Delphi (7/10), DevExpress, XML, SQL, FastReport, DNN
- Full project management from start to finish
$2000 / mo
≈ $24000 / year net
Full Stack Developer
Ukraine · 3 years of experience · Intermediate ·Published 23 April · In passive search
Ukraine · 3 years of experience · Intermediate ·Published 23 April · In passive search
Development web-applications more 2 yaers where I used such technologies as: Socket.io, React, Redux, Node.js, Loopback, Nest and other.
In addition, I have experience in connecting, configuring users on the Internet, and supporting their work. Configuring the operation of user peripherals on the Internet.
$3000 / mo
≈ $36000 / year net
Shopify Expert | WordPress | DRUPAL | PHP Developer
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 22 April
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 22 April
- PHP;
- Frameworks ( Laravel )
- HTML5
- JS ( jQuery, React.js )
- CSS, Bootstrap3, LESS
- MySQL
- Git, Mercury, CVS
- Jira, Redmine
- Scrum/Agile
- C# ( ADO.Net )