CTI Core Software Engineer

About BitSight

BitSight is a cybersecurity ratings company that provides objective, verifiable, and actionable security performance data. BitSight’s Cyber Threat Intelligence (CTI), formerly Cybersixgill, continuously collects and analyzes early indicators of risk from threat actors across the clear, deep, and dark web.

This data is processed, correlated, and enriched using advanced machine learning techniques to build detailed profiles of threat actors and their networks—delivering critical insight into the nature, source, and context of emerging threats.

BitSight’s CTI powers a wide range of products and integrations, enabling organizations to proactively identify and mitigate risks before they materialize into real-world attacks. Our solutions are scalable, searchable, and seamlessly integrated into existing security stacks.

About the Role

We are looking for a talented, hands-on Software Engineer to join our CTI Core R&D team.

The CTI Core team is responsible for building and maintaining large-scale, high-performance infrastructure and services, including user and asset management, identity intelligence, brand intelligence, alerting systems, integrations, and more.

As our development workflows evolve to incorporate AI-driven capabilities, we are looking for an engineer with strong fundamentals in “classic” software engineering—someone who can design, build, and scale robust systems while effectively leveraging modern AI tools.

In this role, you will take a key part in designing and delivering core platform capabilities, working alongside a team of highly skilled engineers in an agile environment.

Our stack includes: AWS, microservices architecture, Python, Kafka, MongoDB, PostgreSQL, Snowflake, Redis, ELK, and more.

Responsibilities

• Design, develop, and maintain scalable backend services and infrastructure
• Take ownership of features end-to-end: from research and design through implementation, testing, and production deployment
• Evaluate and introduce new technologies to improve system scalability, performance, and reliability
• Prototype new ideas (POCs) and evolve them into production-grade solutions
• Continuously measure, analyze, and improve system performance and development workflows
• Collaborate closely with cross-functional teams and stakeholders across the organization

Requirements

• 4+ years of experience in software development
• Strong proficiency in at least one modern programming language (Python preferred; Go, JavaScript, etc. also relevant)
• Experience designing and building scalable microservices-based systems
• Hands-on experience with cloud platforms (AWS preferred; GCP/Azure also relevant)
• Experience with APIs, authentication, authorization, and service-to-service security
• Familiarity with modern AI-assisted development tools and practices, with the ability to use them to improve productivity and code quality
• Solid understanding of web technologies and backend frameworks

Nice to Have

• Experience with event-driven architectures (Kafka or similar)
• Experience with large-scale data systems (e.g., MongoDB, Snowflake, Elasticsearch)
• Background in cybersecurity or threat intelligence

What We’re Looking For

• A curious and driven engineer with a passion for building impactful systems
• Strong problem-solving skills and the ability to learn quickly
• A collaborative team player with good communication skills
• Fluent in English and Hebrew (written and verbal)