Network Engineer- Arlington, VA
Costar Group
Support and maintain global data‑center network infrastructure, security, and automation.
7 days ago ago
Junior (1-3 years)
Full Time
Arlington, VA
Onsite
Company Size
4,700 Employees
Service Specialisms
No specialisms available
Sector Specialisms
Commercial Real Estate
Residential
Apartments
Hospitality
Industrial
Retail
Office
Multifamily
Role
What you would be doing
dns management
network automation
firewall config
aws networking
cert management
f5 loadbalancing
- Perform DNS and domain management tasks, including zone updates, record maintenance, domain migrations, and troubleshooting for internal and external services.
- Collaborate with cross-functional teams including Security, Database, Service Desk, and DevOps to deliver stable, secure, and high-performing network services that meet business needs.
- Participate in network automation initiatives using Python, Ansible, and Terraform, building repeatable processes to reduce manual tasks, improve deployment speed, and enforce configuration consistency.
- Develop and maintain network documentation, including diagrams, runbooks, and operational procedures, to support knowledge sharing and audit requirements.
- Assist in the installation, monitoring, and support of enterprise data center network infrastructure, including core and distribution switches, firewalls, and load balancers, ensuring high availability and resilience across environments.
- Configure, maintain, and troubleshoot Palo Alto firewalls to support network security operations. This includes creating and optimizing security policies, managing User-ID and App-ID features, configuring site-to-site and remote-access VPNs, enabling advanced threat prevention (IPS/IDS, WildFire, URL filtering), and monitoring traffic/logs to proactively detect and remediate security incidents.
- Contribute to AWS networking environments, including the configuration and support of VPCs, Transit Gateways, VPNs, Firewalls and Direct Connect links to extend and integrate hybrid infrastructure.
- Support certificate management by assisting in the installation, renewal, and validation of digital certificates to secure applications and network services.
- Configure, maintain, and troubleshoot F5 LTM/GTM appliances to ensure high availability and optimized application delivery. This includes local and global load balancing, SSL offloading, health monitoring, iRules for traffic shaping, DNS/GTM for global traffic distribution, and integration with data center and cloud services to improve scalability and resiliency.
What you bring
load balancing
python
ansible
aws
ccna
bachelor
- Experience with load balancing such as F5 LTM/GTM, including local and global traffic management, SSL offloading, and health monitoring.
- Strong troubleshooting, documentation, and communication skills, with the ability to clearly explain technical issues to both technical and non-technical audiences.
- A track record of commitment to prior employers
- Experience working in environments with ticketing systems and change management processes.
- Bachelor’s Degree required from an accredited, not for profit university or college (preferably in Computer Science or related field)
- Exposure to network monitoring tools (e.g., LogicMonitor, PRTG, SolarWinds).
- Demonstrated ability to learn quickly and work effectively in a fast-paced, collaborative environment.
- One or more relevant certifications (e.g., CCNA, CompTIA Network+, Aruba ACMA, or equivalent).
- 3+ years of total IT experience, including 1+ years of hands-on experience supporting network infrastructure.
- Knowledge of DNS and domain management, including record types, zone maintenance, and troubleshooting.
- Experience supporting enterprise Wi-Fi and LAN/WAN environments.
- Strong understanding of routing and switching protocols, including but not limited to BGP, OSPF, EIGRP, and/or redundancy protocols such as HSRP and VRRP.
- Experience with firewalls, including policy creation, VPN configuration, and/or security monitoring.
- Familiarity with firewall, load balancing, or cloud networking concepts (AWS, Azure).
- Scripting/automation skills in Python, with working knowledge of configuration management tools such as Ansible or Terraform.
- Exposure to AWS networking concepts, including VPC design, VPNs, Transit Gateways, AWSNF and Direct Connect.
- 401(K) retirement plan with matching contributions
- Life, legal, and supplementary insurance
- Tuition reimbursement
- Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
- Virtual and in person mental health counseling services for individuals and family
- Commuter and parking benefits
- On-site fitness center and/or reimbursed fitness center membership costs (location dependent)
- Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks
- Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
- Paid time off
- Employee stock purchase plan
Information not given or found
Interview process
Information not given or found
Visa Sponsorship- costar group is not able to provide visa sponsorship for this position.
- costar group maintains a drug‑free workplace and performs pre‑employment substance abuse testing.
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Company
Overview
Founded 1987
Year Established
The year the company was first established.
- Offers comprehensive data on properties, tenants, leases, and market conditions globally.
- Known for its pioneering technology and research, delivers powerful insights to commercial real estate professionals.
- Its旗舰平台, CoStar, provides unmatched property data, news, and analytics.
- Platforms used by real estate professionals, from brokers to investors to property managers.
- Expanded through strategic acquisitions, including the purchase of LoopNet and Apartments.com.
- Data-driven insights help clients make informed investment and leasing decisions, shaping the global real estate market.
- Customer Focused: We strive to make a positive impact on our customers through innovative solutions.
- Ownership: We take personal responsibility for delivering results.
- Integrity: We act with transparency and integrity in everything we do.
- Innovation: We drive progress through creativity and technology.
- Collaboration: We believe in the power of diverse teams working together to achieve more.
- Excellence: We are dedicated to the pursuit of excellence in our products and services.
2040
Net Zero Commitment
Aims to achieve net zero carbon emissions by this target year.
- Committed to energy-efficient building designs and energy-saving programs.
- Uses technological advancements to reduce environmental impact.
- Annually tracks and reports on carbon footprint and environmental metrics.
40% Global Workforce
Women Representation
Approximately 40% of the global workforce consists of women.
- Committed to creating an inclusive and diverse workplace where all employees can thrive.
- Has set specific goals to increase the representation of women in leadership roles.
- Implemented training programs to promote diversity awareness and inclusive leadership.
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