Network Security Developer

India
Permanent
Full-time

30 days ago

It takes powerful technology to connect our brands and partners with an audience of hundreds of millions of people. Whether you’re looking to write mobile app code, engineer the servers behind our massive ad tech stacks, or develop algorithms to help us process trillions of data points a day, what you do here will have a huge impact on our business—and the world.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.Job Overview
We are seeking a Network Security Developer who can bridge development and network security operations. This role combines hands-on network security work with development responsibilities, with the long-term goal of building automation that reduces manual operational tasks. You'll maintain and develop our existing scripts and tools while handling day-to-day network security operations on Juniper platforms. As you build out automation solutions, you'll gradually transition from reactive operations to proactive development, helping the team scale more efficiently.Key ResponsibilitiesDevelopment & Automation

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

Network Security Operations

Handle day-to-day network security operations including 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 incidents including 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 rotation for critical network security incidents

Collaboration & Operational Excellence

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

Required QualificationsJuniper Network Security Expertise

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

Development & Scripting Skills

Python development skills for building and maintaining network automation frameworks
Version control systems experience including Git workflows and SVN template management
Network automation knowledge with configuration management tools and deployment pipelines
Operational scripting abilities to maintain existing tools and create new automation solutions
Infrastructure maintenance experience including server upgrades and package management

Preferred Technical Skills

Configuration management platforms (Ansible, Terraform, Salt)
API development and integration for 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

What Makes This Role Unique

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

Work Schedule

Flexible evening and night hours required to collaborate effectively with global teams and support 24/7 infrastructure
24/7 on-call rotation participation for network security incident response

Important notes for your attentionApplications: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 ( ) 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.

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