Senior Security Engineer, Cloud Infrastructure (GCP)

  • San Francisco, CA, United States
  • Employees can work remotely
  • Full-time

Company Description

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams — People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more — provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.

Job Description

Square’s Information Security culture is focused on enabling our engineering teams to build and ship secure products. We achieve this by designing, building, and deploying state of the art security alongside our product and infrastructure teams.

As a Senior Security Engineer, Cloud Infrastructure, you will be responsible for hardening of Square’s cloud computing and cloud network environments. Your work will secure critical data and services.

We’re looking for someone with both a broad knowledge of security and systems, as well as a deep knowledge of how to apply that to GCP. The ideal candidate will have experience across a range of technical disciplines and may have had past jobs such as Information Security (Hardening, Detection/Response, Blue Team, etc) and systems (SRE, SysAdmin, Network Engineer, etc). This is a senior role, and we’re looking for someone who has experience with a wide variety of real-world issues.

You will:

  • Design and build security for GCP.

  • Work closely with the infrastructure and product teams who are using GCP, and ensure that they have secure-by-default systems.

  • USA or Canada location (including full-time remote). Occasional travel to San Francisco may be required.


Desired Background:

  • 5-10 years total experience in tech.

  • You work well cross-functionally, and can communicate with audiences who may not have a security background.

  • GCP experience

    • At least 2 years of GCP experience.

    • Experience implementing GCP security and hardening, especially in a large or complex environment.

    • Deep knowledge of GCP IAM and how to configure least-privilege.

    • Knowledge of GCP networking and how to securely interconnect multiple GCP projects, on-prem servers, etc.

    • Expertise in automation tools such as Terraform.

  • Security experience

    • At least 2 years experience working in security (does not need to be on GCP).

    • Experience writing code to solve security issues. This could be writing security tools, or automation/management of security-sensitive environments.

    • Experience securing Linux systems - hardening, logging/detection, general systems design.

    • Networking knowledge, including network security and segmentation.

Even better:

  • Experience in Python and/or Ruby.

  • Experience with Kubernetes.

Additional Information

We’re working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class. 

We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we’re doing to build a workplace that is fair and square? Check out our I+D page

Additionally, we consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.


We want you to be well and thrive. Our global benefits package includes:

  • Healthcare coverage
  • Retirement Plans
  • Employee Stock Purchase Program
  • Wellness perks
  • Paid parental leave
  • Paid time off
  • Learning and Development resources

Block, Inc. (NYSE: SQ) is a global technology company with a focus on financial services. Made up of Square, Cash App, Spiral, TIDAL, and TBD, we build tools to help more people access the economy. Square helps sellers run and grow their businesses with its integrated ecosystem of commerce solutions, business software, and banking services. With Cash App, anyone can easily send, spend, or invest their money in stocks or Bitcoin. Spiral (formerly Square Crypto) builds and funds free, open-source Bitcoin projects. Artists use TIDAL to help them succeed as entrepreneurs and connect more deeply with fans. TBD is building an open developer platform to make it easier to access Bitcoin and other blockchain technologies without having to go through an institution.

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