Hire the Best Software Maintenance Specialists

I'm a PHP Backend Engineer with 10+ years of experience helping companies maintain, improve, and extend web applications. Most of my work is focused on understanding complex systems, resolving production issues, implementing new features, integrating third-party services, and improving performance without disrupting day-to-day business. I regularly work on: • Resolving production issues • Improving existing codebases • API and third-party integrations • SQL optimization and performance tuning • Frontend performance improvements • Implementing new features I'm framework-agnostic and have worked with Symfony, Laravel, Yii, and custom PHP applications. I focus on understanding the system and the business behind it rather than forcing a particular technology or architecture. I'm comfortable working directly with clients, clarifying requirements, making technical decisions, and delivering reliable solutions with minimal supervision. If you need someone who can quickly understand an existing system, solve problems, and deliver reliable solutions, let's talk.

I'm Aleksandar Janushev a Top Rated IT Operations & Support Engineer with 5+ years of hands-on experience supporting end users, managing cloud infrastructure, and keeping businesses running smoothly. My background includes working at enterprise-level companies (Seavus / Avenga , Qinshift , Scotch & Soda B.V , Deutsche Glasfaser , Sunrise.) where I was responsible for mission-critical IT systems 🎧 Helpdesk & End-User Support — Tier 1 / Tier 2 / Tier 3 technical support for Windows environments — Remote troubleshooting, diagnosis & resolution (hardware + software) — Laptop/desktop setup, configuration & performance optimization — Fast response time with clear, jargon-free communication — Service Now deployments ☁️ Microsoft 365 & Cloud Administration — Full Microsoft 365 / Office 365 tenant administration & architecture — Azure AD / Entra ID, hybrid identity & cloud integration — Tenant-to-tenant & on-premise to cloud migrations — Exchange Online, Teams, SharePoint & license management 🔒 Security & Endpoint Management — Microsoft Intune device deployment & management — Microsoft Defender implementation & security hardening — Conditional Access, compliance policies & risk mitigation — DNS, MX, SPF, DKIM & DMARC configuration 🖥️ Infrastructure & Systems — Windows Server & Active Directory (on-prem & hybrid) — VPN & network connectivity support — Infrastructure design, monitoring & incident resolution — Technical documentation & process improvement 📧 Email & Collaboration — Google Workspace → Microsoft 365 migrations (zero data loss) — Mail flow configuration & advanced troubleshooting — Domain management & optimization I hold a Microsoft 365 Certified: Administrator Expert certification and a Computer Science degree from International Slavic University. I'm fluent in English and respond within hours — not days. Whether you need someone to jump on an urgent issue, manage your M365 environment ongoing, or migrate your entire organization to the cloud — I've done it, and I'll do it right. Let's solve your IT problems today.

Top Rated | 100% Job Success | 11+ Years of IT Excellence Need a reliable IT partner who solves problems fast, communicates clearly, and delivers measurable results? That’s exactly what I do. I’m an experienced IT Support Specialist & System Administrator with a proven track record of helping businesses streamline operations, boost performance, and strengthen security across multi-platform environments. What I Bring to Your Team: End-to-End IT Support: Troubleshooting, helpdesk ticketing, and remote support (Windows, macOS, Linux) System Administration: Windows Server (2008–2019), Active Directory (GPO, Users & Groups), DNS/DHCP, SAN/NAS setup, backup & recovery Cloud Administration: Office 365, Google Workspace, AWS, Azure Security & Compliance: Endpoint protection, VPN configuration, SSL, firewall management Automation: PowerShell, Bash, n8n, Zapier, AI-based workflows to save time and reduce errors E-commerce & Web Platforms: Shopify user/app management, WordPress security, domain & SSL setup Documentation & SOPs: Clear, actionable process guides for internal teams HR Support: Helping HR with technical hiring for multiple positions Recent Client Wins: ✔ Migrated 200+ webmail accounts to Office 365 with zero downtime ✔ Reduced website load time from 9.2s to 2.8s, improving Google Ads ROAS from 8.4 to 16+ ✔ Achieved first-page Google SEO rankings with top keywords in single digits ✔ Set up full IT infrastructure for a multi-location business, including backups, security policies, and remote access systems I combine deep technical knowledge with clear, proactive communication to ensure you always know the project status and next steps. Let’s connect and discuss how I can make your IT systems faster, safer, and more efficient.

Hey there! I’m a Manual QA Engineer with years of experience making sure digital products actually work, on real devices, for real users. I don’t just hunt bugs. I help teams ship smoother, smarter software by blending critical thinking with clear communication. Whether it’s a scrappy startup or a scaling platform, I bring structure to chaos with QA processes that catch issues before your users ever see them: saving you time, frustration, and reputation damage. 🛠 Skills Snapshot 🔍 Testing Types Functional • UI/UX • API • Regression • Smoke • Exploratory Cross-browser & compatibility checks via BrowserStack & LambdaTest ⚙️ Tools I Work With Test Management: Jira • TestRail • Confluence • Trello • Azure DevOps API & Debugging: Postman • Swagger • DevTools Databases: SQL • Soql • PostgreSQL (basic querying) Remote Systems: Azure VMs • AnyDesk Other: Stripe (payments, analytics) • Amplitude • Salesforce 🧪 Here’s What I Deliver End-to-end testing for web, mobile, and desktop Bug reports that are crystal clear - with repro steps, media, and context Thorough docs: test cases, checklists, exploratory session reports Real-time QA in live environments and remote setups Fast product ramp-up I get your workflow and fit right in 🤝 Why People Like Working With Me ✔️ Thinks like a developer, tests like a real user ✔️ Communicates clearly no mystery bugs, just honest updates ✔️ Fits in fast-agile sprints, ad-hoc releases, or anything in between ✔️ Obsessive about usability, reliability, and that final user click If you’re building something people rely on, let’s make sure it works before launch. Need a fresh pair of eyes, or a bug-squashing brain? Let’s chat 🐞

⭐️ Top Rated Plus - Top 3% Expert on Upwork 🕒 9000+ Working Hours ✅ 20+ Years of Expertise ✅ 100% Job Success ✅ 300+ Successful Projects Finished ✅ 5 Star Rating Hello, I'm Oleksandr. As a seasoned Linux System Administrator and DevOps Engineer with over 20 years of experience I specialize in delivering robust IT solutions that enhance operational efficiency and security. My expertise spans across various domains, including: ▪ DevOps & Automation: Successfully implemented automated provisioning using Ansible, streamlining deployment processes and reducing manual intervention. ▪ Linux & FreeBSD Maintenance: Managed and optimized server environments on CentOS, Debian, Ubuntu, RHEL, and FreeBSD, ensuring high availability and performance. ▪ Cloud Hosting: Deployed and maintained scalable cloud solutions on AWS, Azure, and DigitalOcean, enhancing infrastructure reliability and scalability. ▪ Virtualization: Utilized Docker, VirtualBox, and OpenVZ to create flexible and efficient virtual environments, supporting diverse application needs. ▪ Web & Database Servers: Configured and maintained Apache, Nginx, MySQL, PostgreSQL, and MongoDB servers, ensuring secure and efficient data handling. ▪ Networking & Security: Implemented secure networking solutions, including VPNs and firewalls, to protect sensitive data and maintain network integrity. I am committed to continuous improvement and staying abreast of the latest industry trends. My approach is rooted in ITIL best practices, ensuring incident management and business continuity planning are at the forefront of my work. Let's collaborate to drive your IT projects to success with innovative solutions and expert guidance.

Expert with 6+ years of dedicated Software Testing experience in Manual and Automation for Web, Mobile, API, Games, Devices, and Desktop Testing in an Agile environment. 🥇 🏆 🏆 Worked on 40+ mobile and web-based applications. ✅ Dedicated full-time QA Analyst/Sr. QA Engineer/QA Mentoring 🌟 Skilled in applying various testing methodologies in diverse functional and technical domains 💡 Experience in testing web-based applications (including SaaS-based applications), content management systems, as well as mobile-based major platforms like iOS & Android. ⏳ Full-time Freelancer, 100% flexible, and can work in any time zone ⌚ Dedicated freelancer on Upwork. ⭐ QUICK HIGHLIGHT⭐ ✔ Qualifications include 6+ years of QA & Software Testing experience ✔ 40+ projects completed for Mobile, Web, Desktop, API, and Game 🏆 ✔ Acquired ISTQB Certified Tester Foundation Level (CTFL) Certification 🥇 ✔ Acquired ISTQB Certified Tester Agile Certification 🥇 ⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋ EXPERIENCE SUMMARY: 💡 ⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋ ✅ Altogether, I have 6+ years of experience in Quality Assurance ✅ 6+ years in Web Application Testing ✅ 6+ years in Mobile App Testing ✅ 6+ years in Desktop App Testing ✅ 5+ years in eCommerce Products Testing ✅ 4+ years in SaaS Product Testing ✅ 3+ years in Web/Mobile/API Automation Testing ✅ 3+ years in Microservices Testing ✅ 3+ years in API/Webservice Testing ✅ 1+ years in Performance Testing ✅ 1+ years in SCRUM MASTER RO ✔ Acquired ISTQB - Foundation and Agile Certification 🥇 ✔ Degree of Master of Computer Science 📌 Testing Skills : ☛ Test plan creation, Test scenario creation, Test data creation, Test case execution ☛ Usability testing, Regression testing ☛ Manual testing, Web testing, Mobile app testing, Functional testing ☛ User interface testing, Browser compatibility testing, Cross browser testing ☛ Test Cases, and defect reporting. ☛ Methodologies and phases of SDLC, and STLC. 📌 I can help you with the following: ✔ Software QA Consulting ✔ Software Development Audit ✔ Functional Testing of Software ✔ Website Testing and Bug Reporting ✔ Test Automation ✔ Backend API Testing ✔ Mobile app Testing and Automation 📌 Domains: ➞ SaaS ➞ eCommerce & Retail ➞ FinTech ➞ Travel & Hospitality ➞ Consumer Product ➞ Chatbot ➞ ERP & CRM ➞ HealthCare ➞ HRMS ➞ Education ➞ Media & Entertainment ⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋ 🛠️ TOOLS EXPERTISE: ⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋⚋ ➞ JIRA, Azure DevOps, Bugzilla, Trello, Zoho, TestLink, ClikUp, Figma ➞ QC, TestRail, Xray, Zephyr, TestDirector, Test Lodge ➞ Playwright, RestAssured, ➞ Postman, SoapUI, Swagger ➞ Load Runner, JMeter, NeoLoad, WebLOAD ➞ Browserstack, Lambdatest, Emulators ➞ Word, Excel, PowerPoint ➞ GitLab, GitHub, Jenkins 📌 Strengths: ➞ High level of software testing methods and technologies ➞ Business applications (B2B, B2C, C2C, SaaS) ➞ Leading the software testing process ➞ Establishing a software testing process from scratch Certifications: 📃 ISTQB Certified Tester - Foundation Level 📃 ISTQB Certified Tester - Agile Education: 🎓 Master's Degree in Computer Application 🎓 Bachelor's Degree in Computer Application ✔️ Functional QA ✔️ Website testing ✔️ Manual QA ✔️ Bug report✔️ iOS and Android app testing ✔️ Regression Testing ✔️ UI & UX QA ✔️ WordPress QA ✔️ API Testing ✔️ End-to-end testing ✔️ Shopify QA ✔️ Manual testing ✔️ Playwright