Software Engineer III

HackerOne’s mission is to empower the world to build a safer internet. HackerOne is the global leader in human-powered security. We leverage human ingenuity to pinpoint the most critical security flaws across your attack surface to outmatch cybercriminals. HackerOne’s Attack Resistance Platform combines creative human intelligence with the latest artificial intelligence to help organizations reduce risk and transform their businesses with confidence.

Remote: UK or Ireland

Position Summary

Join the HackerOne family to champion a safer internet! As a Software Engineer, you’ll be at the heart of our engineering force, driving projects that matter and guiding our infrastructure towards new heights of reliability and performance.

Your contributions are key to our triumph, and we’re eager to see the innovations you’ll bring to our table!

Platform Squad Overview

We’re the backbone of HackerOne’s operations, supporting our business, platform, and people. Our mandate is to ensure the seamless performance of all HackerOne’s digital offerings, from Bug Bounty to VPN services, and beyond. We’re also the custodians of various internal tools, ensuring they run like clockwork.

We’re a team that values continuous learning and security consciousness, always pooling our knowledge and striving for engineering excellence. Our main partners are the Product Engineering-, Security-, Data-, Compliance-, and IT teams.

You work cross-functionally within your squad and within our company, earning buy-in from stakeholders, with a service mentality. You seek leadership responsibilities, identify and spearhead new initiatives, and make systematic improvements to technical weaknesses you find in your squad’s codebase.

Your Journey at HackerOne
  • In your first week, you’ll get your bearings, familiarize yourself with our processes, and make your first code contribution.

  • By the end of the first month, you’ll have bonded with fellow engineers, gained a solid grasp of our systems, and started to suggest enhancements.

  • Two months in, you’ll be fully integrated into our team, leading significant projects, and connecting with the wider HackerOne organization.

  • After three months, your technical prowess will be recognized, you’ll have built trust within the Engineering team, and you’ll be sharing your insights at our knowledge-sharing events.

  • From there, the path you carve is yours to define. Engage in Hack Week, tackle a cross-team challenge, and let your innovative spirit shine.

Who You Are
  • A seasoned software engineer with a knack for analysis and software development

  • A leader who sets a positive example, spearheads technical initiatives, and garners respect from peers

  • A confident, humble professional with a wealth of experience

  • A cloud architecture wizard, comfortable with any tool from terminal to browser

  • An adaptable problem-solver, ready to tackle challenges creatively

  • A trusted project planner, aligning priorities and documenting decisions with finesse

  • Passionate about secure software and infrastructure, with a keen grasp of InfraSec principles

  • An influential team player who also makes a mark on the broader Engineering and company levels

  • A mentor and supporter, always advocating for architectural enhancements and engineering best practices

  • HackerOne is a digital-first company, and all employees must be able to work and excel in a remote environment.

What You Know
  • Ruby/Ruby on Rails, Python OR Rust experience

  • Javascript experience

  • CI/CD Tools knowledge (Gitlab CI/CD, GitHub Actions, Jenkins or similar) 

  • PostgreSQL experience

What You May Know
  • InfoSec Best Practices

  • GraphQL + React

  • GitLab, Sentry, Datadog, Sumo Logic, Terraform

  • Containerization knowledge & experience (Docker, Kubernetes) 

  • Cloud and on-prem platforms (Azure, AWS, GCP, VMWare, K8S)



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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