Hybrid IT Infrastructure: Senior Systems Administrator -- 2

$8-15 USD / hour

Closed

Posted 24 days ago

$8-15 USD / hour

Overview: We are seeking a skilled and proactive Senior Systems Administrator to manage and support a hybrid IT infrastructure environment that spans both on-premise and cloud platforms. The ideal candidate brings deep technical expertise across virtualization, storage, Windows Server domains, and cloud services, with a passion for performance optimization, automation, and continuous improvement. Key Responsibilities: Infrastructure Management (On-Premise): Deploy, manage, and maintain core infrastructure services including Active Directory, DNS, DHCP, file/print services, and enterprise storage (Nimble, TrueNAS, SAN, VSAN). Administer virtualization platforms, primarily VMware vSphere and ESXi, ensuring high availability and disaster recovery capabilities. Handle backup operations, batch job scheduling, and endpoint administration. Cloud Platforms (AWS & Azure): Support and monitor production workloads across AWS and Azure, including compute, storage, and networking resources. Implement cloud-based solutions and integrate them with on-prem infrastructure as needed. Performance & Optimization: Conduct capacity planning, system tuning, and proactive performance monitoring across all environments. Identify and address resource bottlenecks, applying upgrades or configuration changes to improve system efficiency. Automation & Scripting: Develop and maintain scripts in PowerShell and Python for automating routine administrative tasks. Leverage REST APIs for third-party application integrations and service automations. Operational Support & Leadership: Provide Tier III technical support for escalated system issues. Mentor junior IT staff and deskside support technicians. Participate in a rotating on-call schedule for after-hours support. System Maintenance: Coordinate the testing and deployment of software updates across enterprise systems. Process Improvement & Documentation: Identify areas for process improvement and implement automation or tooling enhancements. Create and maintain clear, organized documentation for systems, procedures, and project workflows. Project & Vendor Management: Lead infrastructure-related projects or serve as a technical SME. Collaborate with external vendors and service providers to ensure service quality and support delivery. Qualifications: Proven experience managing both on-prem and cloud-based systems. Expert-level proficiency with VMware vSphere, Windows Server administration, and enterprise storage systems. Solid scripting skills in PowerShell and/or Python. Familiarity with AWS and Azure services and best practices. Strong troubleshooting and communication skills. Let me know if you want this tailored to a specific industry, company tone, or seniority level.

Azure

Cloud Computing

Network Administration

System Admin

Amazon Web Services

Project ID: 39528055

About the project

45 proposals

Remote project

Active 18 days ago

Looking to make some money?

Email address

Benefits of bidding on Freelancer

Set your budget and timeframe

Get paid for your work

Outline your proposal

It's free to sign up and bid on jobs

45 freelancers are bidding on average $19 USD/hour for this job

@tangramua

Dear Shzad8901, We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in System Admin, Cloud Computing, Azure, Amazon Web Services, Network Administration and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.

$25 USD in 5 days

4.9

(94 reviews)

7.5

@razzeshsingh

As an IT Expert with over a decade of experience, I possess the skills and know-how that make me the ultimate candidate for your Senior Systems Administrator position. The scope of my expertise aligns perfectly with your requirements, from my adeptness in managing both on-premise and cloud systems to my experience with virtualization platforms such as VMware vSphere and ESXi. Not only do I bring comprehensive proficiencies with enterprise storage systems such as Nimble, TrueNAS, SAN, and VSAN but also a strong command over scripting languages like Python and PowerShell for automation needs. My forte extends into AWS and Azure services as well, having worked extensively on both platforms to support and monitor production workloads effectively. Further improving performance is where I excel - conducting capacity planning, system tuning, proactive monitoring to anticipate and address resource bottlenecks before they impact operations. I am confident that I can help optimize your hybrid IT infrastructure for peak performance and contribute proactively towards process improvement.

$15 USD in 40 days

4.9

(72 reviews)

6.7

@talhamq

From overseeing hybrid IT infrastructures to managing cloud computing platforms, my diverse experience and technical finesse underline my suitability for your Senior Systems Administrator role. I am well-versed in deploying and maintaining various systems, including AWS, Azure, and Windows Server Administration. My proficiency extends to virtualization (VMware vSphere, MS Hyper-V) and scripting (PowerShell/Python), empowering me to automate routine tasks, conduct capacity planning, and implement system upgrades seamlessly.

$15 USD in 4 days

4.9

(305 reviews)

6.8

@mnomanrajput

Having spent over a decade in the IT industry, my expertise aligns perfectly with what your project demands. My extensive knowledge and experience managing both on-prem and cloud-based systems make me particularly suited for this role. I have a strong background in network administration, server administration, as well as security solution design and deployment. My proficiency with key technologies such as VMware vSphere, Windows Server administration, enterprise storage systems, and my scripting skills in PowerShell and Python equip me to tackle the hybrid nature of your infrastructure adeptly. Additionally, being skilled in AWS and Azure services adds more value to my profile. A true problem-solver at heart, I’ve successfully optimized performance through capacity planning, system tuning and proactive resource monitoring. Moreover, an advocate for automation, I've developed many scripts to eliminate manual errors and improve administrative tasks making me ready to tackle your infrastructure challenges with efficiency and precision. For me, it's not just about getting the job done - it's about improving processes too. Let's work together to take your IT infrastructure to new heights!

$15 USD in 30 days

4.9

(33 reviews)

6.0

@Solutionzhere

Hello, As a seasoned systems administrator with an emphasis on Microsoft Azure and Amazon Web Services, we offer a breadth of experience that aligns seamlessly with your project's needs. Our deep understanding of hybrid IT infrastructures, cloud platforms, and system optimization will be an asset as we develop centralized systems for your business that minimize complexities and maximize efficiency. Throughout our career, we have leveraged cutting-edge technologies to streamline processes, improve performance, and automate administrative tasks, all abilities that are key to the success of this role. Let's talk in details on chat box to go ahead. Awaiting your response, Team SolutionzHere

$25 USD in 40 days

5.0

(6 reviews)

6.0

@ExpertNetworkEng

Hello Dear, I am an Expert Network Engineer and I am working as an Expert Consultant Network and Security Engineer. I have great hands-on experience for more than 7 years in various network technologies. I have Cisco CCNA, CCIE Enterprise (Enterprise Core & Enterprise Advanced Infrastructure Implementation), CCNP Data Center and CCNP Security certifications. I have Juniper JNCIA-Junos (JN0-102) and JNCIA (Cloud) certifications. I have very good knowledge in Cisco wireless technology, VOIP & Network Security. My specialties: - Design/implement medium and large scale enterprise networks. - Configure Cisco Routers (ASR 1K & 9k, 2900, 2800, ISR 4K, 878, 888), Switches (Cat 6500, 3750, 3850, 2900, 2960, SG- 300, SG-500, [Nexus 5K, 7K and 9K]), Firewalls ([ASA 5505, 5506x, 5508], Fortigate, Palo Alto) and Wireless Acess Points 1800 and 2700. - Configure Juniper Routers (M7, M10, MX 480, MX 960) and SRX (300, 500). - Huawei, Mikrotik, HP & Ubiquiti devices Expert. - Packet Tracer, GNS-3, EVE-NG, VMWare workstation & VirtualBox Expert. - Routing protocols (RIP, OSPF, EIGRP, ISIS & BGP) Configuration and troubleshooting Expert and Switching Expert (VLANs, STP, VTP...). - VPN Configuration Expert (IPSEC/L2TP, GRE/PPTP, OPENVPN & SoftEther). - Linux, Unix & windows servers Expert. - Wireshark Traffic Capture & Analysis Expert. - Write technical reports and summaries. Thanks to check my profile and let me know if you are interested. Best Regards,

$12 USD in 40 days

4.8

(171 reviews)

6.2

@gattes

Hi there, I have over 10 years work experience with Linux as Systems Administrator both on-prem and cloud computing. Ping me and lets chat about the project, I think I can help you out. Cheers!

$25 USD in 1 day

5.0

(47 reviews)

5.7

@zulqrn

Hi there, I have all the required skills for this project and would love to work on this. Kindy message me so that we can take it ahead. Thanks !

$15 USD in 10 days

5.0

(39 reviews)

4.8

@divumanocha

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya

$15 USD in 40 days

5.0

(2 reviews)

3.7

@efanntyo

Hello Hope you are doing well! This is Efan , I checked your project detail carefully. I am pretty much experienced with Network Administration, System Admin, Amazon Web Services, Azure and Cloud Computing for over 8 years, I can update you shortly. Cheers Efan

$50 USD in 26 days

5.0

(4 reviews)

3.4

@sedawy

You're looking for a seasoned Senior Systems Administrator to stabilize and optimize a hybrid infrastructure, on-prem and cloud. I specialize in high-availability environments, VMware, Windows Server, automation with PowerShell/Python, and hybrid integrations with AWS and Azure. I’ll streamline operations, resolve escalations fast, and boost reliability through automation and performance tuning. Approach: Maintain & optimize VMware vSphere clusters with HA & DR Manage AD, DNS, DHCP, file services, Nimble/TrueNAS SANs Monitor AWS/Azure workloads, fine-tune compute/networking Script automation using PowerShell & Python (incl. REST APIs) Provide Tier III support & mentor junior staff About Me: 15+ years in enterprise IT infrastructure, multi-certified in cloud and virtualization, trusted by banks, universities, and media firms. ⭐️⭐️⭐️⭐️⭐️ rated. Bonus: I’ll deliver a full audit report with actionable insights for long-term performance gains, even if not requested. Your funds stay secure, only released when you're 100% satisfied. I fix it or you don’t pay. Want your hybrid infrastructure running smooth with zero surprises? The only thing left is to message me now. Let’s get this done right the first time. Available immediately. ⭐️⭐️⭐️⭐️⭐️ rated in similar jobs, check my profile. P.S. Most outages trace back to overlooked scripts or storage delays. Let’s close those gaps before they escalate.

$15 USD in 40 days

5.0

(6 reviews)

3.5

@nabeelqamar06

Hello, What specific challenges are you facing in your hybrid IT environment? It sounds like you need a robust approach to manage both on-prem and cloud technologies effectively. With extensive experience in systems administration, I specialize in virtualization (VMware, ESXi), Windows Server, and cloud platforms (AWS, Azure). I excel in performance optimization and automation using PowerShell and Python, ensuring high availability and disaster recovery. I can swiftly identify resource bottlenecks and implement effective solutions to enhance efficiency. I’m also experienced in mentoring IT staff and providing Tier III support. Let’s connect to discuss your infrastructure needs further! Best Regards, Nabeel

$12 USD in 40 days

5.0

(12 reviews)

3.6

@hassansuhail93

Hello, Thank you for the opportunity. I have solid experience managing hybrid IT environments, including on-prem infrastructure (VMware, Active Directory, enterprise storage) and cloud platforms (AWS, Azure). I regularly use PowerShell and Python to automate tasks, streamline operations, and reduce manual effort. I can handle Tier III support, performance optimization, system maintenance, and mentoring of junior staff. I am available to start immediately and can support both project-based work and ongoing infrastructure management. Please feel free to message me to discuss the next steps. Thank you,

$12 USD in 40 days

4.6

(1 review)

3.5

@sarthaktyagi0

Hi, I’m a DevSecOps and Systems Engineer with 3+ years of experience managing hybrid infrastructures across VMware, Windows Server, and AWS/Azure. I’ve led full-stack infrastructure deployments, automated operations with PowerShell/Python, and ensured high availability for critical systems. I’m confident in handling Active Directory, SAN/TrueNAS/Nimble storage, and cloud-native services. My focus is on performance tuning, automation, and reliable Tier III support. I’m proactive, documentation-driven, and ready to step in as your go-to admin for both on-prem and cloud systems. Let’s connect—I’m available to start immediately and committed to long-term collaboration.

$15 USD in 40 days

4.6

(4 reviews)

3.6

@taherm12

Hi there, Coming from a decade of hands-on experience in the I.T. industry and a deep understanding of Amazon Web Services, Azure, and System Administration, I believe I can be your go-to candidate for managing your hybrid IT infrastructure. What sets me apart is my holistic approach to problem-solving. Whether it's deploying your core infrastructure services or optimizing your system's performance across multiple environments, I have got you covered. As someone deeply grounded in both on-prem and cloud-based systems management, I pride myself on being proficient in PowerShell and Python scripting - which means that automating your routine administrative tasks is a breeze. Moreover, as the person who both codes and deploys █---you get high-quality and well-optimized binaries every single time. Finally, let's not forget about my soft skills - strong communication and troubleshooting abilities. In addition to being able to speak in plain English rather than wizardry jargon (something that comes with multiple years of bridging IT gaps), I am also a patient mentor who can help upskill your junior IT staff as well as provide top-level technical support faring well even under pressure during the graveyard shifts. In short, with my expertise in services like VMware vSphere, Windows Server administration, storage systems like Nimble,TrueNAS,SAN and penchant for optimization , automation & documentation; you will get not just a competent Sen Thanks! Taher

$35 USD in 39 days

5.0

(1 review)

2.6

@opzteam

Dear sir/madam , i was working as devops/sre/cloud engineer/linux admin for many year and working on it. I have many year working in IT service i sure my skill and expirence good for this position . It's is possible with remote working ?

$12 USD in 40 days

5.0

(4 reviews)

1.4

@brayanstiven5

Hi . No problem this for me. I am very excited with your project because I have completed similar project recently. The skills required for your project ---Hybrid IT Infrastructure: Senior Systems Administrator -- 2--- are my main specialty. I can handle this perfectly and have abundent experiences. Please confirm that I am one of the best fits for you and drop me a message for further discussion. Thanks and Best Regards.

$50 USD in 29 days

0.0

(0 reviews)

2.6

@Ahmedh058

Hi, I'm Ahmed from California, a Senior Full-Stack Engineer with over 15 years of experience in web and mobile application development. Going through your job posting, I felt that I am enough qualified for this project - Hybrid IT Infrastructure: Senior Systems Administrator -- 2. I have worked on similar projects many times in various companies as a senior full-stack engineer, senior developer, and project manager. So I can deliver the quality result in your deadline. Let's bring your vision into life with me. Best regards, Ahmed Hassan (Eddie Hassan)

$25 USD in 40 days

0.0

(0 reviews)

0.0

@hireageek

Hello, As a California-based Senior Systems Administrator, specializing in both on-prem and cloud platforms like AWS and Azure, I am well-equipped to support and manage your hybrid IT infrastructure. My expertise with VMware vSphere, Windows Server administration, enterprise storage systems, PowerShell, and Python aligns perfectly with your project requirements. I'm also no stranger to provision, manage, optimize core infrastructure services including Active Directory, DNS, DHCP, file/print services & enterprise storage ensuring high availability! In addition to my technical proficiency, my refined troubleshooting abilities coupled with strong communication skills make me a reliable choice for handling escalated system issues and being the Tier III technical support backbone your project requires. Time management and staying organized are intrinsic parts of smooth infrastructure management - be it coordinating testing and deploying software updates or ensuring effective vendor management. You will not only find these qualities in me but also a keen eye towards identifying areas of improvement via automations or process enhancement - just what you need! Most importantly, having a dedicated single point of contact can be invaluable for continuity and streamlined communication. With an extensive history of delivering exceptional results and my commitment to understanding and realizing client goals impeccably, hiring me would mean havi Thanks!

$30 USD in 22 days

0.0

(1 review)

0.0

@Fazeennazar

Hello. I have checked your project details one line by one line. In project details, you required me to After reading description, I feel exciting and confident to satisfy you. I have finished similar project recently. If you want to know more detail about my recent work and discuss to solve your problem , please leave me the message. Thanks for time

$28 USD in 40 days