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.

Software Engineer III

Position Summary
At HackerOne, we’re on a mission to empower the world to build a safer internet. We’re a growing engineering team with an outsized impact, and we’re looking for a Software Engineer IC3 to help us innovate and propel our platform forward.

As a Software Engineer IC3, you will work with the seniors of the team, and with Product Managers and Designers and build delightful features and products for our community, as well as the thousands of companies who trust HackerOne with their cybersecurity posture.

You are a collaborative and effective software engineer and team member. You will interact with CSM’s, who are the voice of our customers. You will guide and coach the more junior IC’s.

You’ll combine your technological expertise, domain knowledge, and an unquestionable dedication to business objectives as you intersect with the engineering organization. You identify and make systematic improvements to technical weaknesses you’ll find in your squad’s codebases, and in shared codebases across the company.

Your Journey at HackerOne

• Your day will start with a warm welcome online and get your tools to start!

• Your first 30 days will be focusing on getting to know our HackerOnies. You will join your new squad and being onboarded - get to learn the technology stack (Ruby on Rails + GraphQL + ReactJS + many more)

• Within 60 days, you will have committed a bunch of code to our repositories and will start developing a knack for being a fast and effective software engineer on our codebase

• Within 90 days, you will start getting ready to lead your first project as Software Engineer - you will have branched out and talked to Sales, Marketing and various other functions, and developed a good sense of cross-functional collaboration and communication

• Beyond 90 days, you will be a fully-fledged software engineer

• By that time you will be able to understand the business value of our products and features, and the needs of our customers

• And you are able to translate feature requests into simple, but robust engineering (or non-engineering) solutions

You are:

• At first, a tech-savvy person who likes to work with people and teams

• Willing to learn from Senior and Staff Software Engineers

• Must be based in London UK or the Netherlands. HackerOne is a Flexible Work company. This model offers our employees flexibility in time and location. All employees must be able to work and excel in a remote and in-person environment.

• Owner of your own progress as an individual.

You have:

• 5+ years of experience in full-stack software engineering, especially within a SAAS environment.

• Experience developing applications with Ruby on Rails or Python.

• Preferred experience with ReactJS and TypeScript, generative AI, ElasticSearch / OpenSearch, GraphQL.

• Proven positive impact in your past professional experience.

• Must be based in London UK or the Netherlands. HackerOne is a Flexible Work company. This model offers our employees flexibility in time and location. All employees must be able to work and excel in a remote and in-person environment.

You can:

• Make an impact on a squad and project level.

• Coordinate efforts around new initiatives with the senior engineers.

HackerOne Values

HackerOne commits to maintaining the strong, inclusive culture we’ve built for our employees and our community of hackers. As a team, we

• Lead with integrity. Integrity is doing the right thing when no one is watching;

• Default to disclosure. Ask “Why should this be private?” instead of “Why should this be public?”;

• Execute with excellence. Hold yourself and others to the highest standards of performance;

• Win as a team. Compete to achieve excellence. Enable each other to do our best;

• Respect all people. We prioritize diversity, equity, inclusion, and dignity for all.

#LI-Remote

#LI-SM1

Job Benefits:

• Health (medical, vision, dental), life, and disability insurance*

• Equity stock options

• Retirement plans

• Paid public holidays and unlimited PTO

• Paid maternity and parental leave

• Leaves of absence (including caregiver leave and leave under CO's Healthy Families and Workplaces Act)

• Employee Assistance Program

• Flexible Work Stipend

• Eligibility may differ by country

We are a Circle Back Initiative Employer and commit to responding to every applicant.

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.

Compensation Range: £70K - £85K