Security Engineer, Kubernetes

  • Remote, Colorado, United States
  • Employees can work remotely
  • Full-time

Company Description

Since we first opened our doors in 2009, the world of commerce has evolved immensely – and so has Square. After enabling anyone to take a payment and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn’t work together. So we expanded into software and started building integrated, omnichannel solutions – to help sellers sell online, manage inventory, run a busy kitchen, book appointments, engage loyal buyers, and hire and pay staff. And across it all, we’ve embedded financial services tools at the point of sale, so merchants can access a business loan and manage their cash flow all in one place.

Today, we’re a partner to sellers of all sizes – large, enterprise-scale businesses with complex commerce operations, sellers just starting out, as well as merchants who began selling with Square and have grown larger over time. As our sellers scale, so do our solutions. We all grow together.

There is a massive opportunity in front of us. We’re building a business that is big, meaningful, and lasting. And we are helping sellers around the world do the same.

Job Description

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

As a Security Engineer on the Kubernetes Security team, you will contribute to improving the security of Block's Kubernetes environments. 

We’re looking for someone with both a broad knowledge of security and systems, as well as experience or interest in containerized workloads running in the cloud. The ideal candidate will have other experience across a range of technical disciplines with a strong foundation in security engineering and experience with modern cloud computing practices. 

You will:

  • Collaborate and contribute to the design of security services. This includes maintaining or creating API-driven services/systems for Kubernetes in multiple environments (AWS EKS, GCP GKE, on-prem).

  • Work closely with infrastructure and Kubernetes platform teams, to provide guidance on security best practices and promote security best practices

  • Help shape the way Block leverages and secures Kubernetes for years to come.


You Have:

  • 2 years minimum experience in software engineering or security engineering roles.

  • Familiarity with AWS or GCP

  • Proficiency with at least one of or equivalent (Python, Go. and/or Ruby)

  • Kubernetes experience

    • Experience managing or developing services on Kubernetes, or extending Kubernetes.

    • Experience implementing Kubernetes security and hardening, whether as a security engineer or as an infrastructure engineer.

    • Familiarity with AWS EKS or GCP GKE, or other managed Kubernetes platforms

  • Security experience

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

    • Familiarity with infrastructure, container, application, network security. 

Bonus Points:

  • Strong desire to grow and learn in security domains

  • Experience with OPA and Rego

  • Experience in cloud automation tools such as Terraform, CloudFormation, Ansible, etc.

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

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, 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, and always assess candidates on an individualized basis.


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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