Infrastructure Engineer – L3

Job Summary

We are seeking a well-rounded Infrastructure Engineer / Technical Specialist with 8+ years of experience supporting, implementing, administering, and troubleshooting enterprise IT infrastructure environments.

The ideal candidate will have strong hands-on expertise across compute, storage, networking, hosting services, security, databases, data platforms, and cloud platforms. The candidate should be capable of independently troubleshooting complex end-to-end infrastructure issues and contributing to infrastructure improvements, modernization, automation, and operational stability.

This role will support on-premises, hybrid, and cloud environments, with a strong focus on reliability, security, scalability, performance, and operational excellence.

Key Responsibilities

Enterprise Infrastructure Architecture

• Support the implementation, configuration, administration, and maintenance of enterprise IT infrastructure across on-premises, hybrid, and cloud environments.

• Analyze technical requirements and contribute to stable, scalable, secure, and highly available infrastructure solutions.

• Work with senior architects and technical leads on infrastructure design and implementation activities.

• Ensure infrastructure changes follow organizational standards, operational procedures, security policies, and compliance requirements.

• Troubleshoot complex infrastructure issues across multiple technology domains.

• Participate in infrastructure architecture reviews and technical solution discussions.

Infrastructure Support & Improvement

• Provide L3 technical support for complex infrastructure incidents, service requests, problem investigations, and change activities.

• Monitor infrastructure performance and availability across enterprise environments.

• Identify recurring issues and perform root-cause analysis.

• Recommend practical improvements to increase infrastructure reliability, performance, and efficiency.

• Assist with infrastructure upgrades, migrations, modernization, and technology refresh initiatives.

• Support implementation of infrastructure improvement projects.

• Prepare technical documentation, implementation notes, operational procedures, and handover documentation.

• Collaborate with infrastructure operations, application, security, networking, database, and cloud teams.

Capacity Planning & Resilience

• Perform capacity planning for compute, storage, network, and cloud resources.

• Monitor resource utilization and identify capacity constraints or performance bottlenecks.

• Support backup, data retention, high availability, and disaster recovery activities.

• Participate in disaster recovery drills, failover testing, and infrastructure validation.

• Support business continuity and resilience initiatives.

• Validate recovery procedures and recommend improvements where necessary.

• Assist with infrastructure availability and resiliency assessments.

Cloud & Hybrid Infrastructure

• Support and administer cloud infrastructure services on AWS and Microsoft Azure.

• Work with IaaS, PaaS, and hybrid-cloud environments.

• Provision, configure, monitor, and troubleshoot cloud infrastructure resources.

• Support cloud migration and infrastructure transition activities.

• Participate in cloud assessments, infrastructure builds, testing, migration, and post-migration validation.

• Monitor cloud resource utilization and contribute to cost optimization and right-sizing initiatives.

• Apply cloud security, availability, and operational best practices.

• Support automation and configuration management using Ansible, Chef, or equivalent technologies.

• Assist with modernization of traditional infrastructure into hybrid and cloud environments.

Security & Compliance

• Implement and follow enterprise IT infrastructure security policies and procedures.

• Support infrastructure access management and security controls.

• Ensure appropriate patching and vulnerability remediation activities are completed.

• Coordinate with security teams to address infrastructure security findings.

• Support remediation of vulnerabilities and compliance issues.

• Maintain a secure infrastructure posture across supported environments.

• Ensure infrastructure operations comply with organizational security and regulatory requirements.

• Assist with security audits and compliance assessments.

Operational Excellence & Technical Support

• Provide advanced L3 troubleshooting for complex infrastructure issues.

• Investigate hardware, operating system, network, storage, cloud, database, and infrastructure-related application issues.

• Perform root-cause analysis and develop corrective actions.

• Identify opportunities for automation, standardization, and process improvement.

• Improve monitoring, alerting, and operational processes.

• Identify right-sizing and utilization opportunities to support cost-effective infrastructure operations.

• Contribute to infrastructure optimization and performance improvement initiatives.

• Participate in incident, problem, and change-management processes.

• Support enterprise production environments while meeting established SLAs.

Database & Data Platform Expertise

Provide infrastructure support and technical coordination for relational, NoSQL, and Big Data platforms, including:

• Oracle

• Microsoft SQL Server

• PostgreSQL

• Hadoop

• Apache Spark

• NoSQL databases

• Other open-source Big Data technologies

Responsibilities Include

• Support data-platform availability and operational stability.

• Monitor database and data-platform performance.

• Assist with capacity planning and resource utilization.

• Coordinate backup and recovery activities.

• Troubleshoot infrastructure-related database issues.

• Support access management and security compliance.

• Coordinate with database administrators and data engineering teams.

• Support high availability and disaster recovery requirements.

Required Technical Skills

Infrastructure

• 8+ years of enterprise infrastructure engineering/support experience.

• Strong knowledge across multiple infrastructure domains, including:

  • Compute

  • Storage

  • Networking

  • Hosting

  • Data Centers

  • Hybrid IT

• Strong L3 troubleshooting and problem-resolution experience.

• Experience supporting enterprise production environments.

• Ability to troubleshoot infrastructure issues end-to-end.

Cloud Platforms

• Hands-on experience with AWS and/or Microsoft Azure.

• Understanding of IaaS, PaaS, and hybrid-cloud environments.

• Experience supporting cloud infrastructure operations.

• Experience with cloud migration and infrastructure transition activities.

• Understanding of cloud availability, security, monitoring, and cost optimization.

Automation & Configuration Management

• Experience with Ansible, Chef, or equivalent configuration-management technologies.

• Ability to automate repetitive infrastructure and operational tasks.

• Experience with infrastructure standardization and automation.

• Knowledge of scripting and automation concepts.

Databases & Data Platforms

• Working knowledge of Oracle, SQL Server, and PostgreSQL.

• Exposure to Hadoop, Spark, NoSQL, and other data-platform technologies.

• Understanding of database availability, backup, performance, and security requirements.

Security

• Knowledge of infrastructure security operations.

• Experience with access management and security controls.

• Knowledge of patch management.

• Experience with vulnerability remediation.

• Understanding of infrastructure security and compliance requirements.

Resilience & Recovery

• Experience with backup, disaster recovery, high availability, failover, and data retention.

• Participation in DR exercises and infrastructure validation activities.

• Understanding of business continuity and infrastructure resilience.

Preferred Skills

• Experience supporting large enterprise hybrid infrastructure environments.

• Experience with infrastructure modernization and cloud transformation initiatives.

• Experience with enterprise monitoring and observability tools.

• Knowledge of virtualization technologies.

• Experience with infrastructure-as-code concepts.

• Experience with enterprise networking, load balancing, firewalls, and security infrastructure.

• Experience supporting production environments with strict SLAs.

• Experience working in Agile and/or ITIL-based operational environments.

• Knowledge of automation and DevOps practices.

• Experience with infrastructure performance tuning and optimization.

Professional Skills

• Excellent analytical and troubleshooting skills.

• Ability to independently diagnose complex end-to-end infrastructure issues.

• Strong problem-solving and decision-making abilities.

• Excellent verbal and written communication skills.

• Ability to communicate complex technical concepts clearly.

• Strong documentation and knowledge-sharing skills.

• Ability to work effectively with multiple technical teams.

• Strong ownership and accountability.

• Ability to manage multiple priorities in a fast-paced enterprise environment.

• Customer-focused and solution-oriented approach.

• Ability to work independently as well as collaboratively.

Education

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field is preferred.

• Equivalent professional experience may be considered.

Work Arrangement

Location: Dallas, TX
Work Model: Hybrid
Employment Type: W-2 Contract
Contract Duration: 6+ Months

Candidates must be available to work according to the client's hybrid schedule and onsite requirements in Dallas, TX.