Senior Systems Engineer

PubMatic (Nasdaq: PUBM) is an independent technology company maximizing customer value by delivering digital advertisings supply chain of the future.
PubMatics sell-side platform empowers the worlds leading digital content creators across the open internet to control access to their inventory and increase monetization by enabling marketers to drive return on investment and reach addressable audiences across ad formats and devices.
Since 2006, our infrastructure-driven approach has allowed for the efficient processing and utilization of data in real time.
By delivering scalable and flexible programmatic innovation, we improve outcomes for our customers while championing a vibrant and transparent digital advertising supply chain.
Position Description.
We are seeking a highly skilled Senior System Engineer to join our team in the L4 support capacity.
The ideal candidate will possess extensive experience in providing technical support and troubleshooting for CentOS, Ubuntu, Rocky Linux, as well as expertise in managing load balancers, DNS systems, network infrastructure, data center expansion, capacity management, depth troubleshooting, RCA (Root Cause Analysis), and CDN (Content Delivery Network).
Responsibilities: Provide L4 support for CentOS, Ubuntu, and Rocky Linux environments, ensuring smooth operation and swift resolution of any issues or outages.
Manage and troubleshoot load balancers to optimize performance and ensure high availability of services.
Administer DNS systems, including configuration, troubleshooting, and optimization to maintain optimal domain resolution.
Monitor and maintain the network at the server level to ensure security and reliability.
Lead data center expansion initiatives, including capacity planning, equipment installation, and infrastructure optimization.
Conduct in-depth troubleshooting and root cause analysis (RCA) for complex system issues, identifying underlying causes and implementing permanent resolutions.
Collaborate with CDN providers to optimize content delivery and improve user experience.
Collaborate with cross-functional teams to implement and maintain system upgrades, patches, and enhancements.
Create and maintain documentation for system configurations, processes, and procedures.
Participate in P1/P2 to support for critical systems and infrastructure.
Mentor junior team members, providing guidance and knowledge sharing to enhance overall team competency.
Provide application troubleshooting support when required, working closely with developers to identify and resolve issues.
Work closely with developers to understand application requirements and provide infrastructure support accordingly.
Stay updated with new technologies and conduct various Proof of Concepts (POCs) to assess their feasibility and potential integration into existing systems.
Serve as a bridge between developers and infrastructure teams, facilitating communication and collaboration to ensure seamless deployment and operation of applications.
Requirements: Bachelors degree in Computer Science, Information Technology, or related field, or equivalent work experience.
5+ years of experience in a senior system engineering role, with a focus on L4 support.
Proficiency in administering CentOS, Ubuntu, and Rocky Linux systems in production environments.
Strong understanding of load balancer technologies such as Nginx, HAProxy, or F5.
In-depth knowledge of DNS concepts, including DNSSEC, DNS caching, and DNS load balancing.
Experience with network troubleshooting tools and protocols (TCP/IP, DHCP, VLANs, etc).
Familiarity with configuration management tools such as Ansible, Puppet, or Chef.
Knowledge of Docker, Kubernetes and Cloud Technologies.
Excellent problem-solving skills with a proactive approach to identifying and resolving issues.
Strong communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams.
Relevant certifications such as RHCE, CCNA, or equivalent are a plus.
Return to Office: PubMatic employees throughout the global have returned to our offices via a hybrid work schedule (3 days in officeand 2 days working remotely) that is intended to maximize collaboration, innovation, and productivity among teams and across functions.
Benefits: Our benefits package includes the best of what leading organizations provide, such as stock options, paternity/maternity leave, healthcare insurance, broadband reimbursement.
As well, when were back in the office, we all benefit from a kitchen loaded with healthy snacks and drinks and catered lunches and much more!.
Diversity and Inclusion: PubMatic is proud to be an equal opportunity employer; we dont just value diversity, we promote and celebrate it.
We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
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