Software Engineer, Nucleus Security
$80-110k
Automated vulnerability management solution
Be an early applicant
Automated vulnerability management solution
101-200 employees
Be an early applicant
$80-110k
101-200 employees
Company mission
To transform vulnerability and exposure management programs to help enterprises and government agencies prioritize and mitigate risk faster, at scale.
Role
Who you are
- Are you passionate about building real-world systems that power high-impact cybersecurity workflows?
- 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
- 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
Desirable
- 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
What the job involves
- Nucleus Security is seeking a Software Engineer to join our growing engineering team and help expand and improve our platform
- 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
- 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
- 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
Our take
Nucleus Security was founded to accelerate, automate, and evolve vulnerability management. It does so by delivering a platform that allows organizations to mitigate vulnerabilities 10 times faster, while using only a fraction of the resources previously required.
What sets Nucleus apart is its focus on complex enterprises. With numerous integrations, the platform unifies existing tools in a security stack, making it easier for companies to streamline their security operations.
This approach has been successful, attracting major clients like Canva, Toyota, and Orange. A leader in transforming vulnerability management for enterprises, Nucleus continues to build out its leadership team and has secured funding to support ambitious growth plans for this year and beyond.
Steph
Company Specialist at Welcome to the Jungle
Insights
-4% employee growth in 12 months
Company
Funding (last 2 of 4 rounds)
Feb 2026
$20m
SERIES C
Feb 2024
$23m
SERIES B
Total funding: $66.1m
Company benefits
- Stay Healthy: Comprehensive medical, dental, vision, and disability plans at no premium
- Secure Your Future: Generous 401(k) plan with company contribution and tuition reimbursement
- Take Time for Yourself: Flexible PTO to encourage a healthy work-life balance
Leadership
Steve Carter
(CEO & Co-founder)Previously co-founded Rampant Technologies, where they continue to serve as a Board Member and Advisor. Has also served as Senior Software Engineer at Raytheon, and Senior Security Software Engineer at LTC Engineering.
Scott Kuffer
(CPO/COO & Co-founder)Previously worked at Rampant Technologies, as Head of Commercial and Security Engineer.
Nick Fleming
(CTO & Co-founder)Previously Systems Security Engineer at Rampant Technologies, and Information Assurance Engineer at both Lockheed Martin and Solers.
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