Zscaler

Principal Software Engineer - Cloud Systems (Enterprise Browser)

Madrid, Community of Madrid, Spain

Not SpecifiedCompensation
Expert & Leadership (9+ years)Experience Level
Full TimeJob Type
UnknownVisa
Cloud Security, Enterprise Software, CybersecurityIndustries

Cloud Systems Software Engineer - Enterprise Browser Product Team

About Zscaler

Serving thousands of enterprise customers around the world, including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) 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. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler.

Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy.

Position Overview

We are looking for an experienced Cloud Systems Software Engineer to join our Enterprise Browser Product Team. Reporting to the Manager, Software Development Engineering in Spain, you will be working remotely.

Responsibilities

  • Leading the design, architecture, and development of highly scalable, securing cloud systems that enabling seamless communication between desktop agents, browser extensions, and Zscaler's cloud infrastructure.
  • Architecting fault-tolerant, distributed cloud systems that support dynamic workloads and long-running networking sessions.
  • Owning and improving key services handling communication protocols (e.g., gRPC, HTTP, REST APIs) for efficient interactions with desktop agents and browser extensions.
  • Collaborating with cross-functional teams to identify and implement solutions to complex technical challenges in Zscaler ecosystem.
  • Taking a proactive role in operational excellence, ensuring minimal downtime, seamless deployments, and rapid incident resolution for production services.

What We Are Looking For (Minimum Qualifications)

  • 12+ years of experience in professional software development, with 5+ years focused on designing cloud systems.
  • Advanced proficiency in Go (Golang), with hands-on experience building scalable API-driven cloud services and microservices.
  • Expert understanding of distributed systems, load balancing, caching, and fault tolerance in cloud environments.
  • Strong experience with communication protocols, including HTTP, gRPC, and REST APIs, and secure endpoint design.
  • Proficient in container technologies like Docker and orchestration tools such as Kubernetes.

What Will Make You Stand Out (Preferred Qualifications)

  • Familiarity or willingness to contribute to Go or JavaScript.
  • Experience integrating cloud services with desktop applications or browser extensions.
  • Experience with large scale desktop agents updates.

Company Culture & Benefits

At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive benefits.

Application Instructions

  • #LI-MM
  • #LI-REMOTE

Salary: Location Type: Employment Type:

Skills

Cloud Systems
Software Engineering
Scalability
Security
Enterprise Browser
Cloud Architecture
SASE
SSE
Zero Trust

Zscaler

Cloud-based cybersecurity and secure gateway services

About Zscaler

Zscaler provides cloud-based information security services, focusing on internet, web, and cloud security. Its platform functions as a secure gateway that inspects all internet traffic between users and applications, ensuring that threats are identified and stopped before they can access a client's network. This service is offered through a subscription model, allowing large enterprises and government organizations to select the level of security that meets their needs. Zscaler differentiates itself from competitors by offering a strong partner program that enhances market reach and provides partners with training and resources. The company's goal is to support secure digital transformation for its clients by delivering reliable security solutions.

San Jose, CaliforniaHeadquarters
2008Year Founded
$148.8MTotal Funding
IPOCompany Stage
Enterprise Software, CybersecurityIndustries
5,001-10,000Employees

Benefits

Comprehensive health plans
Supportive parental & family leave
On-demand learning & development
Company-sponsored volunteering
Global tuition assistance program
Guilt-free paid time off

Risks

Emerging cybersecurity firms may erode Zscaler's market share.
Economic downturns could impact Zscaler's subscription-based revenue model.
The retirement of CFO Mr. Canessa may lead to financial instability.

Differentiation

Zscaler offers a 100% cloud-based security platform, eliminating on-premise hardware needs.
The company is a Gartner magic quadrant leader for secure web gateways.
Zscaler's platform inspects all internet traffic, ensuring threats are neutralized pre-network.

Upsides

Zscaler's FY/25 guidance was revised upward, indicating strong financial performance.
The partnership with Bharti Airtel enhances Zscaler's zero-trust architecture offerings.
Zscaler's hiring of government experts strengthens its position in the public sector.

Land your dream remote job 3x faster with AI