Senior Security Researcher

Chainalysis is building the data, intelligence, and technology that enable organizations to investigate and prevent crypto-related crime. Our teams combine deep blockchain expertise with advanced technology to help make the digital asset ecosystem safer and more trusted.

This team is a small, highly technical group focused on exploring emerging threats and technologies, turning insights into practical solutions, and bringing new ideas from early concepts through production.
We are looking for a talented Researcher who is excited by new and emerging technologies and can help move the organization forward by developing new capabilities, from design and proof of concept through production.

The position is office-based in Tel Aviv.

In this job, you'll:

• Design, implement, and improve threat detection models and frameworks

• Be an expert on bleeding-edge web3 technologies

• Write excellent code and be an integral part of engineering efforts

• Solve sophisticated technical problems and "make hard things work"

• Work in a small, agile, fast-moving team that is best in class

We’re looking for candidates who have:

• Proven experience in research in highly technical environments / low level R&D

• Ability to excel in a dynamic environment with rapidly changing requirements

• Previous experience in software development or R&D style teams

Nice to have experience:

• Blockchain prior experience / interest

• Experience with Python, Go, or Rust

• Experience with classic data science / machine learning

• Experience with building agentic LLM-powered products

Technologies we use:

• Python

• Go

• Rust

• Agentic workflows

AI at Chainalysis
AI is not a feature at Chainalysis - it is a new way of working. One that turns instructions into work done, and helps us move faster than the threats we're built to counter, and we expect our employees to take ownership of the output and ensure quality. As the world's most trusted blockchain analytics platform, Chainalysis sits at a rare intersection of proprietary data, regulatory relationships and crypto expertise that makes it uniquely placed to shape and lead the next era of AI-driven intelligence - and we expect everyone here, regardless of role, to be an active part of it.
AI fluency is tied directly to how we measure performance and how we plan to win. There is no substitute for your own curiosity. We provide the tools, workflows, and space to experiment - but the expectation is that you develop these capabilities yourself, bring ideas, and collaborate across teams to reinvent the way work gets done. We are not using AI to do less. We are using it to do what was never possible before.

About Chainalysis

Chainalysis is the blockchain data platform, making it easy to connect the movement of digital assets to real-world services. Powered by deep blockchain data and AI, organizations can investigate illicit activity, manage risk exposure, and develop innovative market solutions built on the industry's most trusted blockchain intelligence. Our mission is to build trust in blockchains, blending safety and security with an unwavering commitment to growth and innovation.

You belong here. 

At Chainalysis, we believe that diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. We’re ensuring we keep learning by committing to continually revisit and reevaluate our diversity culture.

We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don't hesitate to let us know. You can learn more here. We can’t wait to meet you.