I am a System Administrator with strong experience in Windows/Linux environments, user management, IT infrastructure support, email systems, and cloud services.
Skilled in troubleshooting, network configuration, Active Directory, Office 365, Google Workspace, and system monitoring.
I can help you with:
Email migration (Outlook → Gmail, Gmail → O365, IMAP/POP, PST imports)
Windows Server administration (ADDS, GPO, DNS, DHCP)
Linux server setup & maintenance (Ubuntu, Debian, CentOS)
Security hardening and backup configuration
User onboarding/offboarding
Desktop support and issue resolution
Network configuration (routers, VPN, firewalls)
Why clients choose me:
✔ Fast communication
✔ Reliable and detail-oriented
✔ Clear documentation for every task
✔ 5+ years of IT experience
✔ Focus on safe, secure, and efficient solutions
I'm ready to help with one-time tasks, ongoing support, or long-term cooperation.
Computer
Email System
Windows Server
Operating Systems Development
Active Directory Federation Services
Domain Name
System Security
System Monitoring
Video Camera
Video Stream
Zabbix
Zimbra Administration
Administrative Support
VoIP Administration
System Administration
Roman K.
Lviv, Ukraine
$17/hr
5.0
7 jobs
⛩ Building Scalable Web Portals with Architectural Excellence
❇️ I specialize in creating high-load, production-ready web portals where performance and maintainability are non-negotiable. Using a refined architecture based on Laravel and React, I deliver complex systems faster than traditional development cycles without compromising quality.
❇️ I utilize AI as a high-level technical consultant to explore edge cases and optimize logic, while ensuring that every line of code and every architectural decision is manually crafted, verified, and aligned with high-load performance standards.
Why work with me?
❇️ Proven Blueprint: I use a custom-built, tested architectural template that solves common framework limitations, ensuring your portal is scalable from day one.
❇️ High-Load Ready: Expert in optimizing databases (Postgres/MySQL) and handling asynchronous tasks (RabbitMQ/Redis).
❇️ Clean Code.
Tech Stack:
❇️ Backend: PHP (Laravel, Custom-enhanced Core)
❇️ Frontend: React (CSR)
❇️ Infrastructure: Postgres, MySQL, Redis, RabbitMQ, Docker-compose, Kubernetes.
Workflow & Terms:
❇️ Results-Driven Communication: To ensure maximum coding productivity and maintain a perfect "paper trail" of all technical decisions, I work exclusively via written communication (Slack, Jira, GitHub). This guarantees that every detail is documented and searchable.
❇️ Flexible Engagement: I prefer a weekly payment schedule, providing clear milestones and consistent progress updates.
PHP
Laravel
Phalcon
React
JavaScript
PostgreSQL
MySQL
RabbitMQ
Redis
GPT API
Docker
Docker Compose
OpenStack
AWS Development
Google Cloud Platform
VMware vSphere
Roman Y.
Lviv, Ukraine
$20/hr
5.0
50 jobs
Result-oriented Quality Assurance Engineer with a strong desire for quality and attention to details.
I've worked as a QA for 5 years. I have experience in working in an Agile team, communication with developers and customers.
✅ Strong knowledge of the following technologies:
* Types and levels of testing (functional, regression, smoke, performance, white/grey/black
box, penetration, security testing, cross-browser and cross-platform testing, etc.).
* Manual testing of web, desktop, mobile apps.
* Creating required documentation (use case, checklist, test case, bug report, etc.)
✅ Tools:
* Bug tracker and Project Management: Jira, TestRail, Asana, TeamWork
* Test documentation: Jira Confluence, Notion
* SQL and Databases: MySQL
* API testing: Postman, Swagger, Burp Suite
* Performance testing: Apache JMeter
* Virtual machines: VMware, Virtual Box
* Cross-browser testing tools: Browserstack
* Designs: Figma
* OS: Windows/MacOS/iOS/Android
✅ I can manage the projects from it's the initial phase to the last release
Annotated Screenshot
API Testing
Mobile App Testing
Usability Testing
Integration Testing
Web Testing
Test Strategy
Functional Testing
Postman
Test Execution
Unit Testing
Cross-Browser Testing
Test Report
SQL
Software QA
Volodymyr S.
Lviv, Ukraine
$35/hr
4.6
3 jobs
Versatile System Engineer and DevOps manager with 10+ years’ experience in IT. Detail-oriented, responsible, able to provide you with the final product that meets all your requirements.
💪I have a good command of:
💎 AWS
💎 VMWare(ESXi, VCenter, Workstations)
💎 Zabbix, Grafana
💎 Bash, Python scripting
💎 Linux servers, Docker, CI/CD
💎 Terraform, Terragrunt, Ansible, Packer, Github
🚀My knowledge is not limited to this list. I quickly understand the system and learn new technologies.
I will be happy to discuss your tasks with you and help to solve them.
MySQL
PostgreSQL
NGINX
Docker
AWS Lambda
CI/CD
Linux System Administration
Terraform
DevOps
Amazon
DigitalOcean
Packer
Amazon ECS
Natalie M.
Lviv, Ukraine
$43/hr
4.9
14 jobs
Hello!
I'm a co-founder of Clover Dynamics - a company of IT professionals in Ukraine and Poland committed to helping businesses scale their engineering teams, build, and improve their software products.
What we do
✓ scale tech teams with best engineering talents
✓ set up 100% managed remote teams per project
✓ optimize business processes with digital solutions
✓ design, develop and maintain web & mobile applications
✓ consult, develop and scale MVPs for startups
✓ audit and modernize legacy systems
Services
✓ Custom software development
✓ Applications and portals development
✓ Architecture design
✓ R&D and Discovery
✓ IT consulting
✓ DevOps
✓ Quality Assurance & testing
✓ UX-UI design
✓ Team extension & staff augmentation
✓ Established managed team
Solutions
✓ High-load systems
✓ Real-time communication systems
✓ Internet of Things
✓ CRM
✓ ERP
✓ Document management systems
✓ Supply chain management systems
✓ Financial management systems
✓ Browser extensions
✓ End-to-end encryption
TECHNOLOGIES:
🍀 BACK-END DEVELOPMENT: Node.js / GoLang / C# / .Net / .Net Core / Java
• Database : MySQL, Mongo DB, Postgre SQL, Elastic Search, RDS, Aurora DB, Dynamo DB
🍀 FRONT-END DEVELOPMENT: React.js/Redux, Angular.js, Vue.js, ES6, Javascript, Typescript, PWA
• Cloud services: AWS, Google Cloud, Azure, EC2, Lambda, Auto Scaling, Serverless, API Gateway, IoT Core, Greengrass, IoT Device Management
🍀 MOBILE DEVELOPMENT: Swift, Objective-C, Kotlin, Java, React Native, Flutter
• Other: Jenkins, CI/CD
🍀 INDUSTRIES EXPERTISE: Fintech / Healthcare / E-learning / IoT, Energy & Utilities / Take away & deliveries / HRtech / Logistic & Transportation / Telecommunication / Software & Technology
Are you looking for custom software development or an individual expert(s) to join your team? You are in the RIGHT PLACE!
Why YOU SHOULD READ MORE about Clover Dynamics:
🍀 all our projects are continuous - even if they started as a one-time small project :) 100% of customers come back to Clover Dynamics team. Just because they are happy with our service level along with the quality of code!
🍀 we do COMMIT to quality and deadline. Just because we understand how these are important to the business.
🍀 we are 100% business-oriented in building software:
As a proof, see what customers say about Clover Dynamics:
Reviews on GoodFirms - goodfirms.co/company/clover-dynamics
Reviews on Clutch - clutch.co/profile/clover-dynamics
React
JavaScript
Kotlin
React Native
Microservice
Node.js
API
iOS
Serverless Stack
AWS Lambda
Internet of Things
Android SDK
Flutter
WebRTC
Agora.io
Mykola K.
Lviv, Ukraine
$45/hr
4.5
26 jobs
𝗖𝗹𝗶𝗲𝗻𝘁-𝗰𝗲𝗻𝘁𝗿𝗶𝗰 𝗙𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗔𝗜 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 (JavaScript, TypeScript, Node.JS, Nest.JS, Python, FastAPI, Express, Next.JS, React.JS, Vue.JS, React Native, WebRTC) with 𝟮𝟬 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in custom software development and AI powered applications Completed 𝗼𝘃𝗲𝗿 𝟵𝟬+ 𝗪𝗲𝗯 application & 𝗮𝗻𝗱 𝗠𝗼𝗯𝗶𝗹𝗲 application including copmplex custom AI Agent for Sales, AI Assistant of various complexity for startups, scaleups and enterprises.
Build your software with AgilePulse™ empowered by transparent processes, quality control systems and engineering excellence.
🦾 𝗠𝗬 𝗖𝗢𝗥𝗘 𝗧𝗘𝗖𝗛 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 | 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦:
⭐ AI & ML DEVELOPMENT: Recognized as a top machine learning and chatbot development provider by Clutch. I deliver AI solutions such as agentic AI development, generative AI, intelligent automation, AI-powered mobile apps, chatbots, and RPA. AI Agent and AI assistant, AI workflow to optimize Sales, HR Tech, Finance, for Insurance, Healthcare, BPO, Fintech, and Finance
From strategy to implementation, I guide businesses in extracting data-driven insights, automating workflows, and strengthening their edge with adaptive, autonomous AI models.
⭐ AI AGENT DEVELOPMENT: AI agent for Sales, AI Chatbot, AI agent for ordering food, AI agent for CV, AI agent for HR, AI Voice Agent, AI Voice Assistant, AI Consultant for HelpDesk, AI HelpDesk assistant, AI Assistant for appointment booking, Speech to text - text to speech. LLMs, ChatGPT, OpenAI, Gemini, Perplexity, Claude
⭐ WEB APPLICATION DEVELOPMENT: I specialize in building modern, scalable web applications using technologies like JavaScript, TypeScript, Node.JS, Nest.JS, React.JS, Vue.JS, Angular, .Net, and Python, FastAPI. My expertise as an AI web software developer ensures high performance, security, and user-friendly interfaces tailored to your business needs.
⭐ MOBILE APP DEVELOPMENT: I create responsive, cross-platform mobile applications for iOS and Android. My toolkit includes React Native, Swift, Kotlin, and Java Android to deliver smooth, feature-rich mobile experiences for your users.
⭐ DESIGN ARCHITECTURE: My design architecture services include defining architecture attributes, crafting architecture descriptions, and developing solution and enterprise architectures. I am proficient in migration, monolithic to microservice transformations, serverless architecture, scalability design, security protocols, and network topology. I visualize complex systems using class and component diagrams, fault tolerance designs, UML, and tools like DrawIO.
⭐ DATABASES: My database expertise spans a variety of relational and NoSQL databases, including MongoDB, PostgreSQL, MSSQL, MySQL, and others, to provide fast, efficient, and secure data storage solutions.
⭐ BROWSER EXTENSION DEVELOPMENT: I develop powerful browser extensions to enhance user experience and productivity. My skills cover JavaScript, browser automation, Chrome Extension development, Chrome plugins, Firefox extensions, and LinkedIn automation, enabling seamless integrations and custom workflows.
ACHIVEMENTS
🚀 Helped startups raise over $72M in follow-on funding after launching products built by our teams
🚀 One of the client's MVPs that we developed scaled to 500,000+ users within 14 months
🚀 On average, my clients reduce their time-to-market by 32% compared to traditional dev teams
🚀 80% of my clients return for a second phase within the first 6 months
🚀 Onboard dedicated teams in as little as 7-10 business days
🚀 100% transparency through weekly reports, PM dashboards, and performance metrics.
𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦
Real-time communication / Chat & messaging software / Video-conferencing / Telecommunication / FinTech / E-commerce tech / AI & Machine Learning / AI Agent development / AI Assistant development / AI Agent development / Agentic Commerce / Browser Extension / IoT / Education / EduTech / E-Learning / Real Estate / Logistics & Transportation / Marketplaces / Retail / HRTech / HealthCare / Finance / Hotels & Hospitality / Fintech / Agentic Commerce
🤝🤝🤝 I'm here to provide you with superior services in building your product. If you need help with Software Architecture design or custom software development, I'll be glad to hear from you 🤝🤝🤝
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