Hire the Best Mac OSX Administrators in Warsaw, PL

With over 7 years of experience as a Cloud and System Engineer, responsible of quality of a Mission Critical systems in the dynamic field of energy and fuel-oriented technologies, I have developed a strong skill set in designing, implementing, maintaining and supporting cloud and hybrid-based solutions. By showcasing my skills and consistently contributing fresh, innovative ideas to a variety of projects, I have been recognized for my expertise and awarded by a possibility to execute top-class initiatives. My expertise in this area enables me to effectively analyse, optimize and provide services in accordance with strict business processes and workflows, resulting in the delivery of optimal, streamlined solutions that are aligned with organizational goals and objectives. My experience is as follows Cloud Engineering and Product Ownership: Engineering, deploying, maintaining, and supporting Mission Critical systems on the Cloud as a product / system owner responsible for quality. Liaising for all IT-related communications with the technology vendors to oversee and facilitate our interactions to ensure that our IT needs are met. Business Client Service: Providing Tier 2 & Tier 3 support for the most critical issues and problems of business users related to Cloud solutions. Assisting business analysts in developing the rapidly-changing, market-driven processes of the business lifecycle. Project Management and Solution Development: Leading and delivering on project that varies in severalty from minor solutions to Mission Critical systems in a lifecycle of in-house solutions development based on cloud environments. Issue Resolution Developing proactive and reactive monitoring of vital system components to avoid downtime and deliver to strict business requirements. Advising and aiding “Quick Response Teams” in solving major critical incidents related to business critical systems. Availability and Security Maintaining system availability under strict change process and tough SLA as well as handling sensitive and confidential data in “information lifecycle” process. Currently, my primary focus lies on the cloud where I specialize in cloud engineering, system administration, business support and requirements discovery. My expertise in this area enables me to effectively analyse, optimize and provide services in accordance with strict business processes and workflows, resulting in the delivery of optimal, streamlined solutions that are aligned with organizational goals and objectives. I am open for all Cloud and Microsoft stack related opportunities to Develop, Engineer, Support or Advise your business in ever growing and swiftly changing modern market.

Installation and maintenance of Windows 7/8/2003/2008/2012/2016/2019/20222025, Linux, MacOs, VmWare ESXi, vSphere, AWS, Hyper-V, AD, GP, DNS, DHCP, WSUS, Terminal Services, FTP, Mail, Firewall, Exchange, PRTG, pFsense, installation of VPN, Veeam Backup & Replication, Acronis. MS Office. Installation Windows on Hetzner dedicated server/ Configuration of HP, Dell, SuperMicro servers. Dell, Huawei storage systems. Remote work experience, KVM, IPMI, Plesk. Management of equipment and consumable purchases.

Currently I provide software development services of photo and video editing applications for iOS, iPadOS, macOS and visionOS. I offer the development of video and photo editing application from scratch or upgrading the existing app. For my solutions I use Swift and Objective-C programming language. The typical tasks which any video editing app consists are: – Video recording – Video stabilisation when recording – The screen capture at desired FPS – Video editing – Video generation (without source video file) – High FPS, 4K and HDR video edit and recording – Frame-by-frame video pipeline processing – Speech to text recognition – Video captioning and subtitles Functions that could be added to the new app or existing app – Reverse video – Crop & resize – Aspect ratio change – Change quality – Trim the video – Subtitles and captions – Stickers over video – Add watermark – Filter effects – Images to video – Audio overlay Let me know whether you have any questions about my solutions, tasks and functions that we could add into your app. Find and download the following apps in the AppStore as a demonstration of proof of experience: – Scrolling Credits Video – SubtitlerKit – Split Video Into Parts – Video Grid Collage _ Besides of video editing software experience, I have the experience in the development, support and maintenance of iOS software that is used by millions of people. I saw all the way how the project grows and turns from a startup to a big company. I understand the problems of both a small startup and a large company. My main services are: – The development of video recording and video editing applications for Apple devices – iOS, macOS, iPadOS and visionOS application development based on SwiftUI and Combine – The support of legacy applications and projects that were done in Objective-C programming language What will you get – Analysis of your problem and task – Working proof of concept in a week or a month depending on the complexity – Constant and clear communication on work and issues During all the time I had experience with: – Developing of iOS, Mac and MacCatalyst applications – C, C++, Objective-C, Swift – CoreData, SQLite, SQL – GCD, Mulththreading – Core Audio, AudioUnits, AVFoundation, AVKit, AVAudioEngine – AudioKit – GPUImage, Metal, MPS, CoreImage – CallKit, CoreTelephony – CoreText – SwiftUI, Combine – MapKit, MapBox, GoogleMaps – iOS Extensions – Debugging – CocoaPods, Carthage, SPM – JIRA, Trello, Slack, Figma – Scrum, Kanban, Agile – GIT, GitHub, BitBucket – MVVM, MVC – Data structures & Algorithms – Firebase, Testflight – Twilio SDK

I’m an IT Support Specialist & Data Center Engineer with hands-on experience providing reliable technical solutions for businesses across Europe. Over the past few years, I’ve worked with companies in Poland, Austria, and the UK, supporting both remote and on-site IT operations. 💻 What I do best: Remote & onsite IT support (Windows, macOS, Linux) Hardware diagnostics & component replacement (RAM, HDD/SSD, NICs, PSUs) Network setup, cabling, and troubleshooting (LAN/WLAN/VPN) OS imaging, deployment, and user device configuration Secure VPN connectivity & remote access solutions Ticketing systems, monitoring tools, and documentation for fast issue resolution ⚡ Why clients choose me: Proven track record of 99%+ system uptime for businesses Strong problem-solving skills with first-contact resolution rates up to 90% Experience supporting distributed teams of 50+ remote users Clear communication and multilingual support (Arabic, English, Turkish, Polish) Flexible — available for both urgent dispatch support and long-term projects 📌 Whether you need remote troubleshooting, structured cabling, hardware replacement, or ongoing IT support, I can help ensure your systems run smoothly and securely. Let’s work together to keep your technology hassle-free 🚀

I've been working as a lead developer for 20 years. Have strong skills in all modern web technologies - top 10% in all corresponding Upwork tests. Looking for challenging long-term contracts. Understand critical deadlines and specialize in saving employers' ****s (I mean reputations).