Nucleus Security

Software Engineer

Remote
Full Time
Entry Level
Software Engineer – Full Stack
Are you passionate about building real-world systems that power high-impact cybersecurity workflows? Nucleus Security is seeking a Software Engineer to join our growing engineering team and help expand and improve our platform.
This role is ideal for an early-career or mid-level engineer with a strong interest in backend and/or full-stack development, APIs, and scalable systems. You’ll work closely with experienced engineers to build clean, maintainable, and reliable software.
Nucleus Security is transforming how security and development teams manage vulnerabilities at scale. Our platform unifies vulnerability data across scanners and environments, enabling organizations to prioritize and remediate vulnerabilities efficiently. Through our integrations, we empower customers to ingest data from their existing tools with minimal setup and maximum reliability.
As our ecosystem continues to expand, the integrations team plays a critical role in scaling our platform’s reach and value.

Role Overview
As a Software Engineer, you’ll contribute to building and improving core platform features.  You’ll work with APIs, data processing workflows, and application services while collaborating with engineering, product, and QA teams.

What You’ll Do

  • Contribute to building and maintaining features in support of the product roadmap

  • Debug and troubleshoot customer reported issues and fix bugs across the stack
  • Continuously learn and improve your technical skill set
  • Write clean, maintainable, and testable code
  • Work with external APIs to ingest, process, and store data to and from 3rd party systems
  • Collaborate cross-functionally to deliver high-quality features
  • Participate in code reviews and team discussions

What We’re Looking For
Required Experience

  • 0–5 years of professional software engineering experience
  • Experience with a backend programming language
  • Experience with a frontend framework (react, vue, …)
  • Familiarity with web development concepts (APIs, HTTP, frontend/backend interaction)
  • Basic understanding of relational databases (e.g., MySQL, PostgreSQL)
  • Strong debugging and problem-solving skills
  • Ability to work independently and as part of a distributed team

Preferred Experience

  • Experience working with PHP or Python, especially in frameworks like Laminas, Laravel, or Django.

  • Experience building a frontend experience using React
  • Experience working with REST APIs
  • Familiarity with cloud environments (e.g., AWS)
  • Experience with test writing (unit/integration tests)
  • Exposure to Linux-based environments
  • Familiarity with Agile/Scrum methodologies
  • Exposure to cybersecurity or vulnerability management tools
  • Experience using AI tools and agents to accelerate your development 

Why You Should Be Excited

  • We’re biased, but you will get to work with one of the best teams in security. We have a lot to get done and we work extremely hard, but we have fun in the process.
  • Outstanding benefits
    • 401k company contribution (not a match, a contribution)
    • 100% company-paid healthcare options
    • Company HSA contribution on eligible insurance plans
    • 100% company-paid vision & dental
    • 100% company paid short term disability insurance
    • 100% company paid life insurance
    • Fully remote
    • Flexible PTO
 Salary Range $80,000 - $110,000 annually
 
Additional Information 
At Nucleus we are committed to achieving excellence in our field by combining diversity, collaboration, teamwork, and pride in our work. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or disability. 


 
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