Principal Sales Engineer - UK

About Zscaler

Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise , we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate —we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession , collaboration, ownership, and accountability.

We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.

We are looking for a Principal Sales Engineer to join our team. This is a Hybrid role, reporting to the Sales Engineering Manager in the Solutions Consulting department. In this role, you will set the technical direction for marquee multi-region opportunities and partner with extended teams to drive strategic outcomes for the most significant Zscaler customers. You will also pioneer new offerings, influence the product roadmap as part of the EMEA technical advisory function, set cross-portfolio architecture standards, represent the Solutions Consulting function in partner and analyst forums, and mentor senior Sales Engineers to drive communities of practice across the region.

What you’ll do (Role Expectations)

Serve as the technical lead for strategic and high-value opportunities, partnering with Sales, Product, and Customer Success teams to accelerate technical wins, mitigate risk, and drive successful deal closure

Provide technical oversight and executive guidance across key accounts, shaping account strategies, influencing solution direction, and ensuring alignment between customer objectives and platform capabilities

Define, lead, and scale initiatives that increase platform adoption, expand customer value realization, and identify upsell and cross-sell opportunities across the customer lifecycle

Lead and facilitate customer engagements at all levels, from C-suite executives to technical practitioners, delivering compelling business and technical outcomes through workshops, presentations, architecture reviews, and strategic advisory sessions

Maintain deep expertise in current and emerging platform capabilities, establish and promote technical best practices, and drive technical enablement across the Sales Engineering organization through coaching, mentoring, and knowledge-sharing programs

Who You Are (Success Profile)

You operate with an ownership mindset and a strong bias for action, seamlessly navigating between high-level strategy and hands-on execution to drive meaningful outcomes.

You are a natural problem-solver who is energized by complex challenges and dedicated to finding impactful solutions.

You thrive in a fast-paced environment, executing with a sense of urgency to deliver high-quality, high-impact results for both the customer and the team.

You are driven by innovation, bringing a deep technical curiosity and a passion for leveraging technology to accelerate secure, scalable transformation.

You are a resilient and adaptable professional who maintains composure under pressure, viewing change as an opportunity to guide teams through complexity.

What We’re Looking for (Minimum Qualifications)

Demonstrated curiosity and active exploration of AI tools, with a proven history of integrating new technologies to enhance daily workflows and augment problem-solving

More than 12 years of technical pre-sales experience, with at least 5 years in senior individual contributor level roles or technical leadership positions

Deep experience with all aspects of the Zscaler and peer platforms, including network security, networking technologies, AI security, identity and access management, cyber risk, and EDR/XDR

Proven ability to navigate complex compliance and inter-operative organizational structures

Proven execution of high-value and technically demanding Proof of Values (PoVs), especially when minimal overlay resources are available

Demonstrated capability in collaborating with solution architects to resolve highly complex technical edge cases within constrained timeframes

What Will Make You Stand Out (Preferred Qualifications)

Established thought leadership within the realms of emerging security paradigms such as agentic AI security, AI guardrails, and post-quantum cryptography

An established network of technical champions across the largest companies in the UKI region

Multiple top-level industry certifications, such as Zscaler Certified Architect, CCIE, CISSP, or hyperscaler/cloud certifications

#LI-LS2 #LI-Hybrid 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 and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans

Time off plans for vacation and sick time

Parental leave options

Retirement options

Education reimbursement

In-office perks, and more!

Learn more about Zscaler's hybrid working model and benefits  here .

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines.

Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link.

Pay Transparency

Zscaler complies with all applicable federal, state, and local pay transparency rules.

Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.