HeroDevs
Posted 1mo ago

Sr. Software Engineer - JavaScript

HeroDevs
United States
OnsiteFull Time
Responsibilities
  • designing software
  • maintaining forks
  • patching vulnerabilities
Requirements
  • Strong proficiency in JavaScript/TypeScript and major frameworks
  • Node.js/npm familiarity
  • Experience with open-source maintenance
  • Secure software practices
  • CI/CD (GitHub Actions/Jenkins), and effective communication
Technical tools mentioned
JavaScriptTypeScriptAngularReactNext.jsVueNode.jsnpmGitHub ActionsJenkinsSnykOSV

Job description

About the Role

We are seeking a Senior-Level Software Engineer with expertise in JavaScript and TypeScript to join our Never-Ending Support (NES) team. In this role, you will help maintain, secure, and extend the lifespan of critical open-source JavaScript frameworks and runtimes such as Angular, React, and Next.js, ensuring long-term stability and security for enterprise customers.

Key Responsibilities

  • Design, develop, and maintain high-quality software solutions using JavaScript/TypeScript and popular frameworks such as, but not limited to Angular or React.
  • Maintain and improve HeroDevs’ Never-Ending Support (NES) forks for key JavaScript projects, backporting fixes and ensuring compatibility.
  • Use AI-assisted code analysis tools to scan NES forks for vulnerable patterns, accelerating CVE reproduction and root cause identification
  • Partner with open-source contributors, security experts, and internal stakeholders to deliver secure and stable long-term versions.
  • Identify, reproduce, and patch CVE vulnerabilities, collaborating with HeroDevs’ Security Team to ensure responsible disclosure and high-trust releases.
  • Build and refine platform components, automation, and CI/CD pipelines using GitHub Actions, npm, and related tooling.
  • Ensure system scalability, reliability, and security through modern development practices and rigorous testing.
  • Write clean, maintainable, and well-documented code aligned with HeroDevs’ engineering standards.
  • Participate in architectural discussions and help define the long-term technical direction of HeroDevs’ JavaScript ecosystem.
  • Stay current with emerging JavaScript technologies, framework updates, and web security practices.

Required Qualifications

  • Strong proficiency in JavaScript and TypeScript with experience in one or more major frameworks (Angular, Vue, React, etc.).
  • Familiarity with Node.js internals, dependency management, and the npm ecosystem.
  • Experience with open-source contribution or maintenance.
  • Knowledge of secure software practices and vulnerability triage (CVE, OSV, or Snyk).
  • Experience building and maintaining automated build/test/deploy workflows (GitHub Actions, Jenkins, etc.).
  • Excellent problem-solving skills and a detail-oriented mindset.
  • Effective written and verbal communication skills.
  • Ability to work independently and collaboratively in a distributed team environment.
  • Passion for open-source sustainability and long-term software maintenance.

Bonus Points

  • Familiarity with multiple frameworks, specifically React and Angular.
  • Experience actively exploring and applying AI tools to accelerate security workflows, vulnerability research, and code analysis.
  • Curiosity to grow across multiple frameworks.
  • Think in systems, proactively identifies inconsistencies across frameworks and tooling and drives toward scalable, repeatable solutions.
  • Team player who likes to have fun at work while getting the job done.

About HeroDevs

Provides security patches and support for end-of-life open-source software.

Year founded
2018
Employees
99
Organization type
Private
Latest investment
Raised $125.00M Series D (2025) — led by PSG, Album VC
Subsidiaries
Headquarters
US

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