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Software Engineer III

HackerOne

Pune · 5+ years experience · Full-time · Onsite · Posted Oct 5, 2026

At a glance

Experience
5+ years experience
Employment
Full-time
Workplace
Onsite
Location
Pune

About the role

  • As a Software Engineer III at HackerOne, you will help build and evolve product capabilities that advance the Continuous Threat Exposure Management (CTEM) platform.
  • You will own meaningful features and components through the software development lifecycle, contributing across the application stack and collaborating with cross-functional teams.

Responsibilities

  • Build, test, ship, and maintain highly available, performant, and durable product features for HackerOne’s CTEM platform.
  • Own meaningful features and components from development through production, working with engineers, Product Managers, and Designers.
  • Apply First Principles Problem Solving to understand customer and technical problems at their root and develop simple, maintainable solutions.
  • Bring an AI Native mindset to engineering by using AI-enabled development tools and contributing to AI-assisted product capabilities.
  • Use Data-Driven Decision Making to understand how features and systems are performing, drawing on product data, application telemetry, and user feedback.
  • Demonstrate Change Agility as product priorities, customer needs, and technologies evolve.
  • Contribute to the quality and health of the broader engineering platform through code reviews, testing, observability, documentation, and reliability improvements.
  • Collaborate openly with engineers across levels and functions, sharing knowledge and supporting the growth and onboarding of less-experienced engineers.

Requirements

  • 5+ years of software development experience, including experience building and delivering production software within a modern SaaS or web application environment.
  • Proficiency in a dynamically typed, object-oriented programming language such as Ruby, Python, JavaScript, or a similar language, along with practical experience with SQL and relational databases.
  • Experience building modern web applications using front-end technologies such as ReactJS or comparable frameworks, along with experience working with cloud platforms such as AWS or similar technologies.
  • Experience contributing to features or technical projects through multiple stages of the software development lifecycle, including implementation, testing, deployment, monitoring, and ongoing improvement.

Preferred qualifications

  • Hands-on experience with technologies in our application stack, including Ruby on Rails, ReactJS, PostgreSQL, GraphQL, and Amazon Web Services.
  • Experience building products or workflows for security professionals, analysts, technical operations teams, developers, communities, or other technical users.
  • Exposure to Python and AI application technologies or patterns such as LangChain, Langfuse, retrieval/RAG, tool use, workflow orchestration, human-in-the-loop systems, or LLM-powered features.
  • Experience using AI-enabled development tools or familiarity with evaluating AI-assisted product experiences through feedback, quality measures, monitoring, experimentation, or similar approaches.

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

Workplace

  • Working onsite 3-4 days a week

Skills

  • Ruby
  • Python
  • JavaScript
  • SQL
  • Ruby On Rails
  • PostgreSQL
  • React
  • AWS
  • GraphQL
  • LangChain
  • Langfuse

HackerOne

Software Engineer III

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