VLAD KARAPETYAN

Senior Software Engineer | DevOps | SSO/API Integration Specialist

Results-driven Senior Software Engineer with 15+ years specializing in DevOps, Cloud Infrastructure, API Integration, SSO/Authentication Systems, and Full-Stack Development. Expert in AWS, Docker, Kubernetes, CI/CD, OAuth, OpenID Connect, Gluu Server, and WebRTC. Proven track record with 12,000+ hours on Upwork and 100% job success rate delivering enterprise-grade solutions.

About Me

Elite Engineer Building Tomorrow's Technology

Over fifteen years building systems that deliver results. I don't just write codeβ€”I architect solutions that scale, perform, and endure. From enterprise-level authentication systems serving millions of users to cloud infrastructure that never sleeps, I turn complex technical challenges into elegant, production-ready systems.

As a Top Rated Upwork freelancer with 12,000+ billable hours and a 100% Job Success Score, I've helped companies worldwide solve their most critical technical problems. Whether it's implementing enterprise SSO with Gluu Server, building blockchain solutions, deploying scalable AWS infrastructure, or creating custom video conferencing platformsβ€”I deliver solutions that exceed expectations.

My approach is simple: understand the business need, engineer the right solution, deliver exceptional results. No unnecessary complexity. No shortcuts. Just solid, maintainable code that empowers businesses to grow.

Location:
International (Remote)
Email:
contact@vladkarapetyan.com
Specialization:
DevOps & Enterprise Systems

15+

Years Experience

12,000+

Upwork Hours

100%

Job Success Rate

12

Upwork Projects

Connect With Me

View LinkedIn Profile View GitHub Profile View Upwork Profile

Professional Services

Expert solutions for DevOps, authentication, APIs, and enterprise systems

Technical Consulting & Custom Solutions

$150-250/hr

Comprehensive technical support for any software development challenge.

  • Expert problem-solving for complex technical issues
  • Architecture review and optimization recommendations
  • Code review and best practices implementation
  • Technical strategy and roadmap planning
  • Emergency troubleshooting and production support

AI Project Development (A to Z)

$200/hr

Complete AI/ML project development from concept to deployment.

  • Custom AI/ML model development and training
  • NLP, computer vision, and predictive analytics
  • AI integration into existing applications
  • Model optimization and deployment
  • Production monitoring and continuous improvement

Blockchain Development & Web3

$175/hr

Enterprise blockchain solutions, smart contracts, and decentralized applications.

  • Smart contract development (Solidity, Rust)
  • DeFi protocol architecture and implementation
  • NFT marketplace and minting solutions
  • Multi-chain integration and bridges
  • Web3 wallet integration and tokenomics

DevOps & Cloud Infrastructure

$150/hr

Enterprise DevOps solutions, cloud infrastructure, and CI/CD automation.

  • AWS/Azure/GCP cloud architecture and deployment
  • Docker containerization and Kubernetes orchestration
  • CI/CD pipeline setup (Jenkins, GitLab CI, GitHub Actions)
  • Infrastructure as Code (Terraform, CloudFormation)
  • Monitoring, logging, and alerting (Prometheus, ELK)

SSO & Authentication

$150/hr

Enterprise-grade Single Sign-On and authentication system implementation.

  • Gluu Server implementation and customization
  • OAuth 2.0 and OpenID Connect integration
  • SAML 2.0 configuration for enterprise apps
  • Multi-factor authentication (MFA) setup
  • User federation and identity management

API Integration

$150/hr

Custom API development and third-party system integration.

  • RESTful and GraphQL API design and development
  • Third-party API integration (payment, CRM, marketing)
  • Webhook implementation and event-driven architecture
  • API security (rate limiting, authentication, encryption)
  • API documentation and developer portals

Full-Stack Development

$150/hr

Custom web applications using modern frameworks and technologies.

  • Frontend: React, Vue.js, Next.js, Tailwind CSS
  • Backend: Node.js, Python, PHP (Laravel), Java
  • Database: PostgreSQL, MySQL, MongoDB, Redis
  • Real-time features: WebSockets, Server-Sent Events
  • Progressive Web Apps (PWA) and responsive design

WebRTC & Video Conferencing

$150/hr

Custom video conferencing solutions and Jitsi integration.

  • Custom Jitsi Meet deployment and branding
  • WebRTC peer-to-peer communication
  • Screen sharing and recording functionality
  • Custom video conferencing UI/UX
  • Integration with existing applications

QA Engineering & Testing

$55/hr

Professional quality assurance and comprehensive testing services.

  • Manual testing and test case development
  • Automated testing (Selenium, Cypress, Jest)
  • Performance and load testing
  • Security testing and vulnerability assessment
  • Continuous testing in CI/CD pipelines

Project Packages

Fixed-price complete solutions for common business needs

DeFi Protocol Development

$65,000

Custom decentralized finance protocol with advanced tokenomics.

  • Smart contract development and security audit
  • Custom tokenomics and liquidity pools
  • Staking and yield farming mechanisms
  • Governance system implementation
  • Multi-chain deployment support

NFT Marketplace Platform

$45,000

Complete NFT marketplace with multi-chain support and Web3 integration.

  • NFT minting, buying, selling, and trading
  • Multi-chain support (Ethereum, Polygon, BSC)
  • Wallet integration (MetaMask, WalletConnect)
  • Royalty system and marketplace fees
  • Admin dashboard and analytics

AI Project (A to Z)

$25,000

Complete AI/ML solution from ideation to production deployment.

  • Requirements analysis and AI strategy
  • Custom model development and training
  • Integration with your existing systems
  • Production deployment and scaling
  • 3 months of post-launch support

Video Conferencing Platform

$18,000

Custom Jitsi-based video conferencing solution.

  • Custom branded Jitsi Meet deployment
  • Screen sharing and recording
  • User authentication and room management
  • Mobile app support (iOS/Android)
  • Analytics and usage tracking

Enterprise SSO Implementation

$15,000

Complete Single Sign-On solution for your organization.

  • Gluu Server deployment and configuration
  • Integration with up to 10 applications
  • SAML, OAuth, and OpenID Connect support
  • User directory synchronization (LDAP/AD)
  • Documentation and training

Custom Web Application

$15,000

Fully custom web application built with modern technologies.

  • Modern UI/UX design
  • Responsive frontend (React/Vue.js)
  • Robust backend (Node.js/Laravel)
  • Database design and implementation
  • Deployment and hosting setup

Cloud Infrastructure Setup

$12,000

Production-ready cloud infrastructure with CI/CD automation.

  • AWS/Azure/GCP architecture design
  • Docker and Kubernetes setup
  • CI/CD pipeline configuration
  • Monitoring and alerting setup
  • Documentation and runbooks

Complete E-Commerce Solution

$8,500

Full e-commerce website with payment processing and admin panel.

  • Product catalog and shopping cart
  • Payment gateway integration (Stripe/PayPal)
  • Order management and inventory tracking
  • Customer accounts and order history
  • Admin panel for content management

Monthly Retainer

$6,000/mo

Ongoing DevOps & development support for your team.

  • 40 hours of dedicated support monthly
  • Priority response time (<4 hours)
  • Infrastructure monitoring and maintenance
  • Code reviews and technical guidance
  • Flexible hour rollover policy

Our Team

Expert professionals ready to deliver exceptional results

Vlad Karapetyan

Vlad Karapetyan

Lead Engineer & Founder

Senior Software Engineer with 15+ years experience. Expert in DevOps, Cloud Infrastructure, SSO/Authentication, and Full-Stack Development. Top Rated on Upwork with 12,000+ hours and 100% success rate.

LinkedIn Profile β†’
David Aghayan

David Aghayan

Founder & Lead Full-Stack Engineer

Founder and Lead Full-Stack Engineer with deep expertise in modern web technologies. Senior-level main stack developer specializing in React, Node.js, Vue.js, and building enterprise-grade scalable applications. Transforms ideas into solid, production-ready code with exceptional architecture and clean, maintainable solutions.

LinkedIn Profile β†’
Emilian Tita

Emilian Tita

Senior DevOps Engineer

Expert DevOps Software Engineer with 20+ years experience. Specializes in infrastructure management, software development, and Agile methodologies. Proven track record in project management and technical leadership.

LinkedIn Profile β†’
Taron Khachatryan

Taron Khachatryan

Senior Frontend Developer & UI Specialist

Expert Frontend Developer specializing in React, Vue.js, Angular, and modern JavaScript frameworks. Skilled in creating responsive, pixel-perfect user interfaces with exceptional attention to detail. Proficient in TypeScript, Next.js, Tailwind CSS, and component-driven architecture. Delivers elegant, performant web applications with outstanding user experience.

LinkedIn Profile β†’
Susanna Karapetyan

Susanna Karapetyan

QA Engineer & Testing Lead

Quality Assurance specialist with expertise in manual and automated testing. Proficient in Selenium, Cypress, and test automation frameworks. Ensures bug-free, high-quality software delivery.

LinkedIn Profile β†’
Nvard Khachatryan

Nvard Khachatryan

QA Engineer & Test Specialist

Experienced QA engineer specializing in regression testing, test case development, and performance testing. Detail-oriented professional ensuring comprehensive test coverage.

LinkedIn Profile β†’

Client Testimonials

Real feedback from satisfied clients on Upwork - 100% Job Success Rate

Companies I've Worked With

Trusted by leading organizations worldwide

Career Highlights

15+
Years Experience
15+
Companies Worldwide
$1.5M+
Earned on Upwork
100%
Job Success Rate

Technical Expertise

DevOps, Cloud Infrastructure, Blockchain, Authentication Systems, and Full-Stack Development

DevOps & Cloud Infrastructure

Docker
Kubernetes
Jenkins
GitLab CI
GitHub Actions
Terraform
Ansible
AWS
Azure
GCP
Linux
Nginx
Apache
Prometheus
Grafana

Blockchain & Web3

Solidity
Rust (Solana)
Ethereum
Solana
Binance Smart Chain
Tron
Web3.js
Ethers.js
Smart Contracts
NFT Development
DeFi Protocols
IPFS

Authentication & Security

OAuth 2.0
OpenID Connect
Gluu Server
SAML
SCIM 2.0

Backend Development

Java
Spring Framework
JSP/JSF
Java EE
PHP
Laravel
Node.js
Python
RESTful APIs
GraphQL

Frontend Development

React
Vue.js

Databases

MySQL
PostgreSQL
MongoDB
Redis

Specialized Services

WebRTC
Jitsi Meet
CMS/CRM
Payment Gateways

QA & Testing

Selenium
Cypress
Jest
Pytest
JUnit
Manual Testing
Test Automation
Performance Testing

Client Testimonials

Real feedback from satisfied clients on Upwork - 100% Job Success Rate

"

"I wouldn't have any hesitation to hire Vlad due to his exceptional technical competence. Vlad's proficiency and skillset in the technical domain are truly outstanding. He consistently demonstrates a deep understanding of complex technical concepts and the ability to apply them effectively. His problem-solving abilities are second to none, and he has a knack for finding innovative solutions to intricate technical challenges. His dedication to staying updated with the latest industry trends and advancements makes him a valuable asset to any team."

UC
Upwork Client
Payment for work done - Oct 2023
⭐⭐⭐⭐⭐ 5.0
"

"Volodya has been a tremendous asset to our project in developing all components from Unit into Production. Using his extensive software engineer experience, he was able to enhance our code / automated testing framework. He was very quickly to remove any blockers, debug issues and re-design our API interface / enhance our security. It has been a pleasure working him with and we are looking forward to hire him for any future projects. Thank you!"

OT
Outsource Team Client
Sr. Full Stack Developer - Sep 2021 - Feb 2022
⭐⭐⭐⭐⭐ 5.0
"

"We have worked often with Vlad and he has a very good understanding of APIs, SSO, Video conferencing stacks. He shows a lot of initiative and is extremely versatile. We wont hesitate to work with him again and highly recommend him to others!"

IM
IntelMCU Client
WebRTC Product Development - Feb 2019 - Aug 2021
⭐⭐⭐⭐⭐ 5.0
"

"Vlad is an expert on Open ID, OAuth and Gluu. He has helped us with integrating many of our solutions - he wrote necessary APIs to sync data across applications with Gluu. He is dedicated and is a wonderful resource to work with. We continue to work with Vlad on other engagements and won't hesitate to hire him."

GC
Gluu SSO Client
Gluu SSO & SCIM Expert - Nov 2017 - Jun 2019
⭐⭐⭐⭐⭐ 5.0
"

"Great to work with. Knowledgeable and patient."

SA
System Administrator Client
Gluu Expert - Jun 2021 - Jan 2022
⭐⭐⭐⭐⭐ 5.0
"

"Enterprise Class IAM specialist with deep expertise in SCIM 2.0 deployment. Delivered exceptional results on authentication and identity management systems."

EC
Enterprise IAM Client
SCIM 2 Deployment - Aug 2023 - Sep 2023
⭐⭐⭐⭐⭐ 5.0

Case Studies

Real projects, real impact across global enterprises

RAD Intel - Cloud Infrastructure & DevOps Automation

Company: RAD Intel (Remote) | Role: DevOps Engineer
Nov 2021 - Present

Challenge: Need for robust CI/CD pipelines and scalable cloud infrastructure to support rapidly growing AI/ML platform.

Solution: Architected and deployed comprehensive AWS infrastructure with automated CI/CD using Jenkins and GitLab CI. Implemented Docker containerization and Kubernetes orchestration for microservices. Set up monitoring with Prometheus and Grafana.

Results: Reduced deployment time from hours to minutes. Achieved 99.9% uptime. Automated infrastructure provisioning reducing setup time by 80%.

ProTech Solutions - Senior Software Architect & DevOps

Company: ProTech Solutions Inc (Freelance via Upwork) | Role: Senior Software Architect
2017 - 2022 (5 years)

Challenge: Multiple enterprise clients requiring complex full-stack solutions with robust DevOps practices and cloud architecture.

Solution: Led development of multiple enterprise applications using React, Node.js, Python, and Laravel. Implemented CI/CD pipelines, automated testing, and cloud deployments on AWS and Azure. Provided technical leadership and code reviews.

Results: Successfully delivered 12+ enterprise projects. Maintained 100% Upwork Job Success Score with 5-star reviews. Clients achieved measurable ROI and operational efficiency.

Gluu Inc - Enterprise IAM & SSO Implementation

Company: Gluu Inc | Role: SSO & Authentication Specialist
Multiple Projects 2018 - Present

Challenge: Enterprise clients struggling with fragmented authentication systems across multiple applications, security vulnerabilities, and complex user management.

Solution: Implemented Gluu Server for centralized identity and access management. Configured OAuth 2.0, OpenID Connect, and SAML 2.0 integrations. Set up MFA and user federation with LDAP/Active Directory.

Results: Unified authentication across 10+ applications per client. Enhanced security posture and compliance. Reduced password reset tickets by 70%.

ET Virtual Worlds - Blockchain Architecture & NFT Ecosystem

Company: ET Virtual Worlds | Role: Blockchain Specialist
Metaverse Platform Development

Challenge: Architecting a sophisticated blockchain infrastructure for an immersive metaverse platform requiring seamless multi-chain interoperability and scalable NFT ecosystems across disparate blockchain networks.

Solution: Developed smart contracts in Solidity for Ethereum and Polygon. Built NFT minting and trading systems. Implemented cross-chain bridges and Web3 wallet integrations. Created custom tokenomics and staking mechanisms.

Results: Launched successful NFT marketplace with multi-chain support. Processed 10,000+ NFT transactions. Built scalable infrastructure supporting 50,000+ concurrent users.

Custom Jitsi Video Conferencing Solutions

Multiple Enterprise Clients (Upwork) | Role: WebRTC & Jitsi Specialist
2020 - Present

Challenge: Clients needed secure, scalable, branded video conferencing solutions with custom features beyond what commercial platforms offer.

Solution: Deployed custom Jitsi Meet instances with branded UI/UX. Implemented authentication, recording, and custom features. Optimized for high-quality video with low latency.

Results: Delivered 5+ custom video platforms. Supported thousands of concurrent meetings. Clients saved 70% compared to commercial solutions.

Simplessus - Full-Stack Development & API Integration

Company: Simplessus Corporation | Role: Full-Stack Developer
Multiple Projects

Challenge: Complex web applications requiring seamless integration with multiple third-party APIs and services.

Solution: Built modern web applications using React, Vue.js, and Laravel. Integrated payment gateways, CRM systems, and marketing automation tools. Implemented RESTful APIs and real-time features.

Results: Delivered scalable applications handling 100,000+ users. Seamless API integrations reducing manual work by 60%. Enhanced user experience with responsive design.

GITST - Enterprise Software Development

Company: GITST | Role: Software Engineer
Previous Experience

Challenge: Developing enterprise-grade software solutions with high reliability and performance requirements.

Solution: Built robust enterprise applications using modern development practices, implemented comprehensive testing strategies (unit, integration, E2E), followed SOLID principles and design patterns, conducted code reviews and mentored junior developers, optimized application performance, and ensured security best practices.

Impact: βœ“ Delivered mission-critical applications | βœ“ 99.99% application uptime | βœ“ Improved code quality metrics | βœ“ Reduced bug reports by 65% | βœ“ Faster feature delivery cycles

Professional Experience

15+ Years of Expert Software Engineering

Senior Software Engineer & SSO Specialist

Upwork (Top Rated Freelancer)
2017 - Present

Delivered 12+ successful projects with 100% job success rate and 12,000+ billable hours. Specialized in enterprise IAM solutions, SCIM 2 deployments, Gluu Server implementations, and complex API integrations. Notable clients include enterprise companies requiring secure authentication systems and video conferencing solutions.

Full Stack PHP Developer

Various Enterprise Clients
2015 - 2021

Built scalable web applications using Laravel, CodeIgniter, and WordPress. Developed custom CMS/CRM solutions, API integrations, and payment gateway implementations. Expertise in database design, optimization, and AWS deployment. Created custom plugins, themes, and modules for various platforms.

Authentication Systems Developer

Global Clients (SSO/OAuth Projects)
2019 - Present

Expert implementation of OAuth 2.0, OpenID Connect, SAML, and Gluu Server for enterprise clients. Built custom authentication solutions, user provisioning systems (SCIM 2.0), and multi-app SSO configurations. Helped organizations secure their applications and streamline identity management across platforms.

Frequently Asked Questions

Everything you need to know about working with us

We specialize in DevOps & Cloud Infrastructure (AWS, Azure, GCP), Enterprise SSO & Authentication (OAuth, OpenID Connect, Gluu Server), Blockchain Development (Smart Contracts, NFT, DeFi), Full-Stack Development (Laravel, React, Vue.js), AI/ML Project Development, Video Conferencing Solutions (Jitsi, WebRTC), and API Development & Integration. With 15+ years of experience, we've successfully delivered 100+ projects across these domains.

We offer two pricing models: Fixed-Price Packages ($8,500 - $65,000) for well-defined projects with clear scope and deliverables, and Hourly Services ($55 - $250/hour) for consulting, ongoing support, or projects with evolving requirements. We also offer monthly retainer packages starting at $6,000/month for continuous support.

Project timelines vary based on complexity and scope. Typical timelines are: E-Commerce platforms (6-8 weeks), Enterprise SSO implementation (8-12 weeks), Cloud infrastructure setup (4-6 weeks), NFT Marketplace (12-16 weeks), DeFi Protocol (16-24 weeks), and Custom Web Applications (8-12 weeks). We provide detailed project plans with milestones and regular progress updates.

Yes! All our fixed-price packages include 2-6 months of post-launch support depending on the package. This covers bug fixes, minor adjustments, and technical assistance. After the included support period, you can opt for our monthly retainer service ($6,000/month for 40 hours) or pay-as-you-go hourly support.

Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, Terraform, Jenkins, GitLab CI/CD
Backend: Laravel, Node.js, Python, PHP, Java
Frontend: React, Vue.js, Angular, JavaScript
Blockchain: Ethereum, Solana, BSC, Tron, Solidity, Rust
Authentication: Gluu Server, OAuth 2.0, OpenID Connect, SAML, SCIM 2.0
Databases: MySQL, PostgreSQL, MongoDB, Redis
Video: Jitsi Meet, WebRTC, AWS IVS

Absolutely! We frequently integrate with existing development teams and work with legacy codebases. Our expertise includes code reviews, refactoring, modernization, and seamless collaboration through Git, Slack, Jira, and other standard development tools. We adapt to your team's workflow and communication preferences.

Quality and security are our top priorities. We implement: comprehensive code reviews, automated testing (unit, integration, E2E), security audits for smart contracts and authentication systems, OWASP security best practices, regular penetration testing, encrypted communications, secure CI/CD pipelines, and compliance with industry standards (SOC 2, GDPR, HIPAA where applicable).

We maintain flexible hours to accommodate clients across different time zones. Communication typically happens via Slack, email, or scheduled video calls. For project work, we provide: daily standups for active projects, weekly progress reports, dedicated Slack channels, and 24-48 hour response time for urgent issues. Monthly retainer clients receive priority support with faster response times.

Yes, we routinely sign NDAs and work-for-hire agreements. We understand the importance of confidentiality and intellectual property protection. All code, designs, and deliverables are transferred to you upon project completion and final payment. We're also happy to review and sign your company's standard agreements.

Getting started is simple: 1) Schedule a free consultation call using our calendar below, 2) We'll discuss your requirements, timeline, and budget, 3) Receive a detailed proposal with scope, timeline, and pricing, 4) Sign the agreement and make the initial payment, 5) Project kickoff with team introductions and planning. Most projects can start within 1-2 weeks of agreement signing.

Still Have Questions?

We're here to help. Schedule a free consultation or send us a message.

Get in Touch

Let's Build Something Amazing

Ready to transform your infrastructure and scale your business

Contact Information

🌍 Location

International (Remote)

⏱️ Response Time

Within 24 hours

Schedule a Free Consultation

Book a 30-minute call to discuss your project requirements

What to Expect

πŸ“‹

Project Discussion

Review your requirements and technical needs

πŸ’‘

Solution Planning

Discuss best approaches and technologies

πŸ’°

Transparent Pricing

Get accurate timeline and cost estimates

Stay Updated

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Education & Certifications

Academic background and professional development

πŸŽ“

Bachelor of Engineering (BEng)

State Engineering University of Armenia (SEUA)

Duration: 2005 - 2009

Specialized in Software Engineering with focus on distributed systems and enterprise applications. Participated in Armenian-Indian Center of Excellence (EIFA) for advanced Java programming and Web development.

πŸ“š

Professional Certificate

SEUA College

Duration: 2003 - 2005

Advanced technical education in Computer Science and Software Development fundamentals.

🏫

Secondary Education

N.199 Henrik Khachatryan Secondary School

Duration: 1995 - 2003

Completed high school education with strong foundation in mathematics and sciences.

πŸ† Professional Training & Certifications

πŸ’»
Armenian-Indian Center of Excellence (EIFA)

Advanced Java Programming & Web Development Certification

πŸ”
Identity & Access Management (IAM)

Specialist in OAuth, OpenID Connect, SAML, and Gluu Server Architecture

☁️
Cloud & DevOps Expertise

AWS Certified Solutions Architect β€’ Kubernetes β€’ Docker β€’ CI/CD

⛓️
Blockchain Technologies

Ethereum, Solana, and Tron Blockchain Architecture & Development

Open Source & Projects

Explore my latest repositories and contributions on GitHub

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Public Repositories

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Followers

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Following

⏳

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