Full Stack Developer (Python / React / AI & Cybersecurity)

Join Keystone Solutions as a Full Stack Developer (Python / React) on a consultancy mission, delivering high-impact solutions at our client sites. As a Keystone Solutions consultant, you will work closely with the client to design, build, and enhance an innovative vulnerability management platform integrated with ServiceNow, and augmented with AI for CVE (Common Vulnerabilities and Exposures) analysis. You will execute the responsibilities below under Keystone Solutions' consultancy model.

We are building an innovative vulnerability management platform integrated with ServiceNow, enhanced by AI for CVE (Common Vulnerabilities and Exposures) analysis. The goal is to improve vulnerability detection, prioritization, and remediation through intelligent automation.

We are looking for a Full Stack Developer (Python / React) with experience in LLM integration to contribute to the development of this next-generation platform as a Keystone Solutions consultant working on-site or hybrid at the client.

As a Keystone Solutions consultant, you will perform the following responsibilities while working closely with the client:

• →Develop backend services in Python (FastAPI, Flask)
• →Build frontend interfaces using React (JavaScript/TypeScript)
• →Integrate with ServiceNow (Vulnerability Response)
• →Implement AI/LLM features for CVE analysis (classification, summarization, risk scoring)
• →Integrate and manage local LLMs (on-prem/private)
• →Build data pipelines for vulnerability feeds (CVE/NVD, scanners)
• →Ensure performance, scalability, and security
• →Collaborate with cybersecurity and DevSecOps teams

• Strong experience in Python backend development
• Solid experience with React frontend development
• Experience with API integration / microservices
• Knowledge of ServiceNow integrations
• Experience with LLMs / AI frameworks (Hugging Face, local models, etc.)
• Understanding of vulnerability management / CVE concepts
• Familiarity with CI/CD and DevOps practices

• Experience with RAG architectures
• Knowledge of DevSecOps / secure SDLC
• Exposure to security tools or vulnerability scanners

• Analytical and solution-oriented
• Autonomous and proactive
• Strong collaboration skills
• Fluent in English (FR/NL is a plus)

Deliver a robust platform leveraging AI to automate CVE analysis, improve vulnerability visibility, and enhance integration with ServiceNow.

As a Keystone Solutions consultant, you will operate within a client-facing environment, engaging on-site or in a hybrid setup at the client's premises. You will align with client stakeholders, follow the client's engineering workflows where appropriate, and bring Keystone Solutions' best practices to accelerate delivery and quality.

Keystone Solutions offers opportunities to tackle diverse challenges across various client projects. You will apply your Python, React, and AI/LLM expertise to different environments, toolchains, and security landscapes, broadening your exposure and impact.

Benefit from continuous learning with Keystone Solutions through knowledge-sharing, mentorship, and access to modern tooling and practices in AI, cybersecurity, and full-stack engineering—helping you stay ahead in CVE analysis, LLM integration, and ServiceNow ecosystems.

Your career growth is accelerated through varied engagements, where you can lead initiatives, contribute to architectural decisions, and own deliverables that matter—supported by Keystone Solutions' community and leadership.

Being a K-Stone means bringing excellence, integrity, collaboration, and customer value to every client mission. You will embody these values in day-to-day work—pairing pragmatic engineering with security-minded craftsmanship.

In this role, you will apply full-stack development, LLM integration, and vulnerability management expertise across multiple client scenarios—from integrating ServiceNow Vulnerability Response to building data pipelines and deploying on-prem/private LLMs—ensuring performance, scalability, and security while collaborating with cybersecurity and DevSecOps teams.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.