Zscaler
Staff iOS Software Engineer - Networking or Security
Zscaler, San Jose, California, United States, 95199
About Zscaler
Zscaler (NASDAQ: ZS) accelerates digital transformation so that customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange is the company’s cloud-native platform that protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.With more than 10 years of experience developing, operating, and scaling the cloud, Zscaler serves thousands of enterprise customers around the world, including 450 of the Forbes Global 2000 organizations. In addition to protecting customers from damaging threats, such as ransomware and data exfiltration, it helps them slash costs, reduce complexity, and improve the user experience by eliminating stacks of latency-creating gateway appliances.Zscaler was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. Zscaler’s purpose-built security platform puts a company’s defenses and controls where the connections occur—the internet—so that every connection is fast and secure, no matter how or where users connect or where their applications and workloads reside.
Job Description
The Mobile team at Zscaler is responsible for developing a cross-platform client application for Windows, MacOS, Android, iOS, and Linux, to securely steer endpoint traffic to Zscaler cloud. The ideal candidate for this position will have a background in software development of networking applications, testing, and deployment with a strong focus on performance, reliability, and quality. This role requires excellent problem-solving skills and the ability to work collaboratively with development teams to ensure that our software meets the highest standards of reliability and quality.Ideally, you will have worked on a VPN client or similar client application and understand the intricacies of multi-version multi-platform client apps. This is a technical position and you will be involved in all aspects of the product development lifecycle – requirements discussion/analysis, design, scope estimation, planning, implementation, code reviews and unit testing, documentation, POCs, deployment and continuing engineering.
Primary Responsibilities
Work with Product Management to understand requirements and customer needs.Design and develop networking software and SDKs using the latest software development techniques.Monitor and analyze software performance data to identify and address issues related to reliability and quality.Develop and execute automated tests to validate software functionality and reliability.Work with QA to create better test strategies, reproduce customer issues, and deliver better quality product releases.
Qualifications
7+ years software engineering experience, with emphasis on networking-based applications for iOS and MacOS Operating Systems.Understanding of TCP/IP networking model with focus on Layer 3 and above.Solid understanding of networking protocols like TLS/DTLS/HTTPS/DNS.Hands-on experience with object-oriented languages such as C++, Objective C, and Swift.Experience in designing, developing, and debugging complex software applications.Knowledge of tools like Wireshark and Charles Proxy.Experience with automated testing frameworks and tools.Experience with software performance measurement tools.Excellent oral and written communication skills.
Desired Skills
Good understanding of network security concepts such as PKI, VPN, and firewall.Good understanding of Apple Network Extensions for iOS and macOS.Good understanding of authentication frameworks such as SAML/OIDC.
Education Requirements
Bachelor’s in computer science or related field is required.
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Zscaler (NASDAQ: ZS) accelerates digital transformation so that customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange is the company’s cloud-native platform that protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.With more than 10 years of experience developing, operating, and scaling the cloud, Zscaler serves thousands of enterprise customers around the world, including 450 of the Forbes Global 2000 organizations. In addition to protecting customers from damaging threats, such as ransomware and data exfiltration, it helps them slash costs, reduce complexity, and improve the user experience by eliminating stacks of latency-creating gateway appliances.Zscaler was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. Zscaler’s purpose-built security platform puts a company’s defenses and controls where the connections occur—the internet—so that every connection is fast and secure, no matter how or where users connect or where their applications and workloads reside.
Job Description
The Mobile team at Zscaler is responsible for developing a cross-platform client application for Windows, MacOS, Android, iOS, and Linux, to securely steer endpoint traffic to Zscaler cloud. The ideal candidate for this position will have a background in software development of networking applications, testing, and deployment with a strong focus on performance, reliability, and quality. This role requires excellent problem-solving skills and the ability to work collaboratively with development teams to ensure that our software meets the highest standards of reliability and quality.Ideally, you will have worked on a VPN client or similar client application and understand the intricacies of multi-version multi-platform client apps. This is a technical position and you will be involved in all aspects of the product development lifecycle – requirements discussion/analysis, design, scope estimation, planning, implementation, code reviews and unit testing, documentation, POCs, deployment and continuing engineering.
Primary Responsibilities
Work with Product Management to understand requirements and customer needs.Design and develop networking software and SDKs using the latest software development techniques.Monitor and analyze software performance data to identify and address issues related to reliability and quality.Develop and execute automated tests to validate software functionality and reliability.Work with QA to create better test strategies, reproduce customer issues, and deliver better quality product releases.
Qualifications
7+ years software engineering experience, with emphasis on networking-based applications for iOS and MacOS Operating Systems.Understanding of TCP/IP networking model with focus on Layer 3 and above.Solid understanding of networking protocols like TLS/DTLS/HTTPS/DNS.Hands-on experience with object-oriented languages such as C++, Objective C, and Swift.Experience in designing, developing, and debugging complex software applications.Knowledge of tools like Wireshark and Charles Proxy.Experience with automated testing frameworks and tools.Experience with software performance measurement tools.Excellent oral and written communication skills.
Desired Skills
Good understanding of network security concepts such as PKI, VPN, and firewall.Good understanding of Apple Network Extensions for iOS and macOS.Good understanding of authentication frameworks such as SAML/OIDC.
Education Requirements
Bachelor’s in computer science or related field is required.
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