Network Security Developer

A Little About Us:
Yahoo is a global media and tech company. We reach nearly 900M people around the world, bringing them closer to what they love—from finance and sports, to shopping, gaming and news—with the trusted products, content and tech that fuel their day. For partners, we provide a full-stack platform for businesses to amplify growth and drive more meaningful connections across advertising, search and media.

• Develop network automation frameworksusing Python and configuration management tools to streamline Juniper device operations and policy deployment
• Build automated deployment systemsfor Juniper SRX firewalls and MX routers including security policy management and configuration validation
• Create self-service tools and APIsthat enable other teams to request network changes without manual intervention
• Manage code deploymentsthrough custom scripts and maintain version control using Git and SVN for configuration templates
• Implement automated testing and validationfor network configuration changes before production deployment
• Handle server and package maintenanceincluding system upgrades and operational tool maintenance

• Handle day-to-day network security operationsincluding policy management, incident response, and system maintenance
• Deploy and manage Juniper networking equipment(SRX firewalls, MX routers, switches)
• Create, deploy, and manage network security policies(ACLs, firewall rules) across Juniper platforms
• Respond to DDoS attacks and security incidentsincluding IP, ICMP, TCP, UDP attack vectors
• Maintain VPN infrastructure(IPSEC, site-to-site, remote access VPNs)
• Work with centralized authentication systems(TACACS+, RADIUS)
• Participate in 24/7 on-call rotationfor critical network security incidents

• Collaborate closely with internal teamsto gather requirements, design secure network solutions, and act as subject matter expert for network automation
• Participate in 24/7 on-call rotationto respond to critical network security incidents, with focus on automating responses to DDoS attacks and other threats
• Troubleshoot complex issues across the stackfrom physical layer to application layer
• Independently manage high-visibility projectsfrom start to finish within strict deadlines

• Strong hands-on experience with Juniper networking equipment- SRX Series firewalls, MX Series routers, switches
• Solid understanding of network security operationsincluding policy management, incident response, and troubleshooting
• Deep knowledge of networking protocols(BGP, OSPF, ISIS, IPSEC VPNs, VRRP)
• Firewall and VPN technologiesimplementation and maintenance
• DDoS mitigation techniquesand network security incident response
• Experience with centralized authentication systems(TACACS+, RADIUS)

• Python development skillsfor building and maintaining network automation frameworks
• Version control systems experienceincluding Git workflows and SVN template management
• Network automation knowledgewith configuration management tools and deployment pipelines
• Operational scripting abilitiesto maintain existing tools and create new automation solutions
• Infrastructure maintenance experienceincluding server upgrades and package management

• Configuration management platforms(Ansible, Terraform, Salt)
• API development and integrationfor network system connectivity
• Cloud infrastructure experience(AWS, GCP, Azure networking)
• Monitoring and alerting systems(Prometheus, Grafana, ELK stack)
• Modern data formats(JSON, YAML, XML) and database technologies

• Systems architecture ownership- design and build network security systems from the ground up
• End-to-end system responsibility- from initial design through deployment and ongoing operations
• Cross-functional systems integration- connect network infrastructure with broader technology systems
• Scale and complexity- work with enterprise-grade systems that handle significant traffic and security demands
• Technical leadership opportunities- drive architectural decisions for critical infrastructure systems

• Flexible evening and night hoursrequired to collaborate effectively with global teams and support 24/7 infrastructure
• 24/7 on-call rotationparticipation for network security incident response

Important notes for your attention

Applications:

All applicants must apply for Yahoo openings direct with Yahoo.  We do not authorize any external agencies in India to handle candidates’ applications.   No agency nor individual may charge candidates for any efforts they make on an applicant’s behalf in the hiring process.  

Our internal recruiters will reach out to you directly to discuss the next steps if we determine that the role is a good fit for you.  Selected candidates will go through formal interviews and assessments arranged by Yahoo direct.  

Offer Distributions:

Our electronic offer letter and documents will be issued through our system for e-signatures, not via individual emails.

Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo will consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form (www.yahooinc.com/careers/contact-us.html) or call +1.866.772.3182. Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response.

Yahoo has a high degree of flexibility around employee location and hybrid working. In fact, our flexible-hybrid approach to work is one of the things our employees rave about. Most roles don’t require specific regular patterns of in-person office attendance. If you join Yahoo, you may be asked to attend (or travel to attend) on-site work sessions, team-building, or other in-person events. When these occur, you’ll be given notice to make arrangements. 

If you’re curious about how this factors into this role, please discuss with the recruiter.

Currently work for Yahoo? Please apply on our internal career site.