UK, Ireland, and Poland
66 days ago
Infrastructure Engineer III

HackerOne is the global leader in human-powered security, harnessing the creativity of the world’s largest community of security researchers with cutting-edge AI to protect your digital assets. The HackerOne Platform combines the expertise of our elite community and the most up-to-date vulnerability database to pinpoint critical security flaws across your attack surface. Our integrated solutions, including bug bounty, pentesting, code security audits, spot checks, and AI red teaming, ensure continuous vulnerability discovery and management throughout the software development lifecycle. Trusted by industry leaders such as Coinbase, General Motors, GitHub, Goldman Sachs, Hyatt, PayPal, and the U.S. Department of Defense, HackerOne was named a Best Workplace for Innovators by Fast Company in 2023 and a Most Loved Workplace for Young Professionals in 2024.

Infrastructure Engineer III

As an Infrastructure Engineer III at HackerOne, you will work on impactful squad and project-level tasks. You will take ownership of projects, suggest best practices and design patterns to enhance quality. You understand what it takes to build highly available, performant, and durable cloud architecture. You work cross-functionally, earning buy-in from stakeholders across the organization, with a service mentality.

Infra Squad Overview

Our mission is to serve and sustain the HackerOne Business, Platform, and People. Our work upholds all of HackerOne core digital products: Bug Bounty and Vulnerability Disclosure Programs, Pentest, Gateway VPN, Payments, Integrations, Messaging. Additionally, we provide maintenance and support for various internal services such as GitLab, Sentry, and more.

We believe in a growth mindset, and we invest in our engineering skills and security awareness. We're highly collaborative and continuously iterative, sharing our knowledge with each other as we go. We work to raise the tide of engineering excellence and our primary stakeholders are

Product Engineering, Security, Data, Compliance, and IT.

Your Journey at HackerOne

Your first week will be spent setting up your development environment, getting a feel for our Infra team processes, digging into our documentation, and merging a Merge Request.

By day 30, you will have met most of your fellow Engineering HackerOnies, you will have paired with other Infra engineers, you will have a strong feel for our codebases and infrastructure, and will be prepared to make recommendations for projects and improvements to the way we work.

By day 60, you will have been eased into our on-call rotations, you’ll be contributing to a meaningful project for the team, and you will have become more connected within the larger HackerOne organization.

By day 90, you’ll have impressed your colleagues with your technical contributions, you’ll have earned trust and credibility within the larger Engineering team, and you’ll be poised to present some of your work during coffee sessions or in a Lightning Talk at our weekly All-Hands.

Your experience from here is yours to Own. You have the opportunity to expand your influence by participating in a Hack Week and creating something extraordinary that addresses a challenge faced by another team. This gives you the chance to showcase your innovation.

Who You Are

You are an infrastructure engineer with strong analytical and software development capabilities

You are a leader who is able to demonstrate positive example, run technical programs, and earn buy-in from fellow engineers

With a terminal, your preferred IDE and a browser, you can build just about any kind of cloud architecture

You are a flexible thinker, able to creatively solve old problems in new ways, and new problems in old ways

You can earn trust from your colleagues, plan a project, align priorities, refine a sprint, model the work, document your decisions, and complete the project cleanly

You have a strong interest in secure software and infrastructure patterns and best practices, ideally with a deep understanding of contemporary InfraSec principles

You know how to make a strong impact on a team level, while influencing the larger Engineering organization, and even the entire company

You are an effective champion, always pushing for architectural improvement and the reduction of manual work, while promoting engineering best practices

You naturally support, inspire, and mentor your colleagues


What You Know

Most things about Linux

Amazon Web Services, inside and out

Proficiency in Terraform and Infrastructure as Code

Experience with containerization and orchestration

Familiarity with modern DevOps toolchain and pipelines

Expertise in provisioning and configuration

Good understanding of Site Reliability Engineering principles

What You May Know

InfoSec Best Practices

VPN Technologies

Compliance Frameworks

Ansible, Salt, Packer

GitLab, Sentry, Datadog, PagerDuty

Ruby on Rails, PostgreSQL, Python


We're committed to building a global team! For certain roles outside the United States, U.K., and the Netherlands, we partner with Remote.com as our Employer of Record (EOR).

Employment at HackerOne is contingent on a background check.

HackerOne is an Equal Opportunity Employer in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, pregnancy, disability or veteran status, or any other protected characteristic as outlined by international, federal, state, or local laws.

This policy applies to all HackerOne employment practices, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. HackerOne makes hiring decisions based solely on qualifications, merit, and business needs at the time.

For US based roles only: Pursuant to the San Francisco Fair Chance Ordinance, all qualified applicants with arrest and conviction records will be considered for the position.

HackerOne Values

HackerOne commits to maintaining a strong, inclusive culture built for our employees and our community of hackers. We are driven by our five core values. We recognize that our mission is bigger than us, and therefore act with integrity at all times. As a team, we believe that transparency builds trust so we default to disclosure in our communications. Each individual executes with excellence, creating an environment of greater alignment and greater autonomy. We win as a team and respect all people to empower everyone to learn from each other, innovate, and grow.

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