Senior Software Engineer (C, Networking) jobs in United States
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Zscaler · 4 hours ago

Senior Software Engineer (C, Networking)

Zscaler is a pioneer and global leader in zero trust security, providing solutions for businesses and government agencies to secure their digital transformation initiatives. They are seeking a Senior Software Development Engineer to design and code components of a large-scale distributed system, contributing to the development cycle and ensuring a healthy cloud environment. The role requires collaboration with various teams and a strong focus on high performance and scalability.

Cloud SecurityCyber SecurityEnterprise SoftwareSecurity
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H1B Sponsor Likelynote

Responsibilities

Participating in all phases of the product development cycle, from definition and design to implementation and testing
Developing functional specifications, assessing task requirements and schedules, and contributing to development, debugging, and support
Designing and coding components of a large-scale distributed system with a focus on high performance and scalability, and troubleshooting issues efficiently
Collaborating with feature teams, Operations, and Support to maintain a healthy cloud environment and ensure customer satisfaction
Demonstrating accountability and ownership for areas assigned to you

Qualification

C programmingUnix/Linux systemsREST APIsTCP/IP networkingObservability toolsOperating system conceptsMulti-threadingMemory optimizationFault tolerancePythonAgent-based AI applicationsLLM modelsEndpoint securityFirewalls

Required

3+ years of software development experience in programming with C, Python, or high-level languages
Experience in software development on Unix/Linux systems
Experience working with REST APIs and API gateways
Knowledge of L4 to L7 network topologies and TCP/IP networking stacks
Familiarity with observability and monitoring products

Preferred

Strong fundamentals in operating system concepts, event-based programming, multi-threading, memory optimization, and fault tolerance
Familiarity with endpoint security and firewalls
Experience developing agent-based AI applications and LLM models

Benefits

Various health plans
Time off plans for vacation and sick time
Parental leave options
Retirement options
Education reimbursement
In-office perks, and more!

Company

Zscaler is a global cloud-based information security company that enables secure digital transformation for mobile and cloud.

H1B Sponsorship

Zscaler has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (164)
2024 (220)
2023 (108)
2022 (144)
2021 (82)
2020 (51)

Funding

Current Stage
Public Company
Total Funding
$1.67B
Key Investors
TPG GrowthLightspeed Venture Partners
2025-07-01Post Ipo Debt· $1.5B
2024-04-23Post Ipo Equity· $22.7M
2018-03-16IPO

Leadership Team

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Jay Chaudhry
CEO, Chairman & Founder
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Hemant Dabke
Area Vice President
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Company data provided by crunchbase