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*Company Description*Want to make an application Make sure your CV is up to date, then read the following job specs carefully before applying.Total Network Solutions is a fast-growing, U.S.-based Managed IT Service Provider supporting clients nationwide with a strong presence in Southern California. We deliver 24/7/365 IT support, cybersecurity, cloud management, Microsoft 365 services, and full-stack IT operations for clients across multiple industries"”including manufacturing, financial services, government contractors, professional services, and multi-site enterprises.As we scale, we are looking for a Full Stack Senior Systems Engineer who can help us elevate our service delivery, automate workflows, manage complex environments, and step into a technical leadership role.*Job Summary*This is a full-time on-site role for a System Administrator in Long Beach, CA. The System Administrator will be responsible for day-to-day tasks related to systems engineering, troubleshooting, system administration, technical support, and systems design. Please note, candidates must live in the Los Angeles or Orange County Area.*Position Description*The Senior Full Stack Engineer will play a critical role in delivering advanced technical support, systems engineering, cloud administration, and automation across multiple client environments. This role requires deep expertise with Microsoft 365, Azure/Entra, Windows Server, Intune, Firewalls, RMM/PSA tools, and PowerShell/Python automation.You will act as a senior escalation point for our support team, participate in project delivery, design technical solutions, and ensure standardization across client environments. This is not a boring internal IT role"”this is a senior-level MSP engineering role requiring multi-tenant experience and exceptional customer service.*Qualifications** At least 5 years of experience as a systems administrator or in a similar role in an MSP or IT consulting environment.* Experience with cloud services, such as Azure, Entra, and Intune* Experience with MSP tools like Huntress, Autotask, and NinjaRMM is a plus* Systems Engineering, Troubleshooting, and System Administration skills* Knowledge of IT best practices, standards, and security policies.* Strong Networking background and experience with Meraki and/or Fortinet network equipment.* Technical Support and Systems Design skills* Strong problem-solving and analytical skills* Excellent communication and collaboration abilities* Ability to work independently and as part of a team* Certifications such as CCNA, MCSE, VCP, or equivalent are highly preferred.* Experience with IT infrastructure and application development* Relevant certifications in systems engineering or related fields*Responsibilities** Design, implement, and manage enterprise-wide IT infrastructure including servers, storage, networking, and virtualization platforms such as VMware and ESXi.* Administer operating systems including Windows, Linux, and UNIX environments, ensuring optimal performance and security.* Develop and maintain system architecture diagrams, solution architectures, and infrastructure documentation.* Manage databases such as MySQL, PostgreSQL, Oracle, and Microsoft SQL Server; optimize database performance and ensure data integrity.* Configure and monitor network components including VPNs, firewalls, DHCP, DNS, load balancers, and RESTful APIs to ensure secure connectivity.* Implement automation scripts using Bash (Unix shell), PowerShell, Python, or Shell Scripting to streamline operations.* Oversee container orchestration platforms like Kubernetes and CI/CD pipelines utilizing Jenkins for continuous integration.* Ensure system security through the implementation of information security best practices including firewalls, VPNs, and access controls.* Collaborate with development teams utilizing Agile methodologies to support DevOps initiatives with tools such as Git and Azure DevOps.* Monitor system health using monitoring tools; troubleshoot issues proactively to minimize downtime.* Hands-on experience with network protocols (*DNS*, *DHCP*, *REST*, *RESTful API*), security (*firewall*, *VPN*, *information security*), and scripting languages (*Python*, *Bash*, *Shell Scripting*).* Familiarity with modern development practices including *DevOps*, *CI/CD pipelines*, microservices architecture, and service-oriented architecture (*SOA*).* Knowledge of load balancing solutions and NoSQL databases is a plus.* Excellent problem-solving skills with the ability to analyze complex systems and develop scalable solutions.* Strong communication skills to collaborate effectively across teams in an Agile environment. This position offers an opportunity to lead critical projects within a dynamic organization that values innovation and technical excellence. The successful candidate will play a pivotal role in shaping our IT landscape while working on cutting-edge technologies in a collaborative setting.*Key Responsibilities ** Develop and maintain comprehensive documentation for client systems and processes* Lead and mentor junior engineers in best practices and technical expertise* Design, configure, and manage enterprise-level IT systems and networks* Provide advanced technical support and troubleshooting for clients* Collaborate with a team of engineers to ensure the optimal performance and security of client systems.* Implement and manage backup and disaster recovery solutions* Stay up-to-date with the latest industry trends and technologies to provide innovative solutions* Develop and maintain comprehensive documentation for client systems and processes* Lead and mentor junior engineers in best practices and technical expertise.*Core Values*Customer-centricity: Putting customers' needs and satisfaction first and striving always to provide exceptional service.Reliability: Committed to providing dependable, consistent, and available best practice services and solutions whenever needed. We also ensure we are reliable, available, and committed to the TNS Team.Expertise: A team of highly skilled professionals knowledgeable and experienced in various IT domains.Proactive approach: We identify and address potential issues before they become major problems and offer proactive solutions to improve the efficiency and security of the systems we support.Communication: Maintaining clear and open lines of communication with clients, partners, and team members, ensuring transparency and updates on the status of tickets, projects, and services.Integrity is at the very core of our company culture. We conduct business with honesty, transparency, and ethical practices, ensuring the confidentiality and security of client data. Achieving and maintaining customer trust is paramount.Continuous improvement: Striving for excellence through ongoing learning, training, and improving processes and services.*Mission Statement*At Total Network Solutions, we aim to empower small and medium-sized businesses with top-notch Managed IT and cybersecurity Services. We strive to be the trusted partner that understands and caters to our customers' unique needs, providing customer-centric solutions.Committed to reliability, we offer a proactive approach to IT management, ensuring seamless operations and peace of mind for our clients. Through open and effective communication, we build strong relationships and foster a sense of trust and transparency.Integrity is at the core of everything we do, as we prioritize honesty and ethical practices. Embracing a continuous improvement mindset, we adapt to ever-evolving technologies and industry standards to deliver cutting-edge solutions. xijylhu Just like a family, we treat our customers as our own, working diligently to serve their best interests and contribute to the success of both their businesses and our local communities.Pay: $90,000.00 - $125,000.00 per yearBenefits:* 401(k)* Dental insurance* Health insurance* Paid time off* Vision insuranceWork Location: In person