Principal Software Engineer

Missionat Palo Alto Networks; Greater London; On-site; GBP 120,000 - 160,000; Full time

Job summary

Palo Alto Networks in London is seeking a Principal Software Engineer to join the Workload Identity area. You will design and build secure service communication across cloud, networking, and SDKs, leveraging Kubernetes and modern cryptography.

The role requires leadership, mentoring, and collaboration with product and field teams to move from prototype to production while tackling enterprise-scale security challenges.

Qualifications

• Strong software development background including design, architecture, implementation, and testing.
• Experience with Golang and modern security networking concepts.
• Experience solving enterprise-scale performance and quality challenges.

Responsibilities

• Design and develop software to solve Workload Identity challenges, from prototyping to production, including client and server components.
• Develop, shape, lead, mentor, and collaborate with a close-knit team.
• Work with stakeholders to discuss ideas, present work, discuss priorities, and options, particularly providing the technical perspective on feasibility and complexity.
• Act as the team's technical lead, delegating work and guiding team members through implementation.

Skills

Golang

Networking

Security

Cloud

Kubernetes

Leadership

Mentoring

Tools

Kubernetes

PKI

JWT

SPIFFE

Job description

Principal Software Engineer

Date Posted: 2026-09-17

Location: The Borough, Greater London, GB, SE1 1

Type: Any

Closing Date: 2026-12-20 at 11:03:42

Our Mission

At Palo Alto Networks, we're united by a shared mission - to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you're ready to do the most meaningful work of your career alongside people who are just as passionate as you are, you're in the right place.

Who We Are

In order to be the cybersecurity partner of choice, we must trailblaze the path and shape the future of our industry. This is something our employees work at each day and is defined by our values: Disruption, Collaboration, Execution, Integrity, and Inclusion. We weave AI into the fabric of everything we do and use it to augment the impact every individual can have. If you are passionate about solving real-world problems and ideating beside the best and the brightest, we invite you to join us!

We believe collaboration thrives in person. That's why most of our teams work from the office full time, with flexibility when it's needed. This model supports real-time problem-solving, stronger relationships, and the kind of precision that drives great outcomes.

Job Summary

We are looking for a highly experienced, curious, and driven software engineer to join a growing area of our business. Workload Identity presents a huge opportunity to change the way that communication between services is secured. It is also a challenging area which touches on many different foundational pieces of modern software development - networking, security, authorization, SDKs, cloud, Kubernetes, and more.

We are looking for a high-performing engineer with broad experience across security, networking, cloud, and more, ideally with specific experience related to the area of Workload Identity. This role has a lot of scope for growth, and will require being adaptable as we move through the product development lifecycle and grow the team.

Responsibilities

• Design and develop software to solve Workload Identity challenges, from prototyping to production, including client and server components.
• Develop, shape, lead, mentor, and collaborate with a close-knit team.
• Work with stakeholders (internal and external) to discuss ideas, present work, discuss priorities, and options, particularly providing the technical perspective on feasibility and complexity.
• Act as the team's technical lead, delegating work and guiding team members through implementation.

Qualifications

• Strong software development background including design, architecture, implementation, and testing.
• Knowledge of software development in Golang.
• Advanced knowledge or experience in networking, security, cloud, Kubernetes, encryption, PKI, JWT, SPIFFE.
• Experience solving problems at enterprise scale, with performance and quality standards.
• Leadership experience in developing and mentoring software teams (with or without line management experience).
• Experience in product development and collaboration with product managers and field teams.

Our Commitment

We're trailblazers that dream big, take risks, and challenge cybersecurity's status quo. It's simple: we can't accomplish our mission without diverse teams innovating together.

We are committed to providing reasonable accommodations for all qualified individuals with a disability. If you require assistance or accommodation due to a disability or special need, please contact us at .

Alto Networks is an equal opportunity employer. We celebrate diversity in our workplace, and all qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or other legally protected characteristics. All your information will be kept confidential according to EEO guidelines.

Is role eligible for Immigration Sponsorship? No. Please note that we will not sponsor applicants for work visas for this position.

Summary

Location: London, United Kingdom

Type: Full time