Staff Software Engineer (Systems & Network Proxy)

About the role

We’re looking for an experienced systems software engineer to help drive and evolve our product. This person would extend and own our on-endpoint network proxy solution, intercepting and manipulating the network traffic of third party software. Our technology is new and rapidly evolving, and you’ll have a chance to be an early contributor with a substantial impact on the product architecture.

What you'll do

• Hook or redirect outbound connections, terminate and re-establish TLS sessions, and apply content-aware policies in real time

• Add low-level collectors that trace data flows across apps, files, sockets, and pipes, feeding a unified event stream

• Solve challenging performance optimization problems: we’re building software that monitors hundreds of thousands of events with minimal impact on performance of the endpoint applications

• Design and build highly reliable code that never impacts the end-user experience

• Build secure-by-design hardened software that must withstand real-world attacks, while processing untrusted data and communicating with a backend over the internet

Who you are:

• Strong track record in network interception and parsing

• Prior work on at least one forward proxy used by security software

• Experience debugging, profiling, and optimizing the performance of low-level system software

• Proficient in designing and implementing application architecture

• Experience with agile development and SCRUM

• Proven ability to collaborate with a distributed cross-functional team

• Possess verbal and written communication skills in English

• Availability to frequently communicate with a distributed engineering team in Central European and US Eastern time zones.

Joining Cyberhaven is a chance to revolutionize data security. Traditional tools fall short, but we’ve reimagined protection with AI-enabled data lineage that analyzes billions of workflows to understand data, detect risk, and stop threats. Backed by $250M from leading investors like Khosla and Redpoint, our team includes leaders who built industry-defining technologies at CrowdStrike, Palo Alto Networks, Meta, Google, and more. This role lets you shape the future of data security, alongside experts driven to help customers protect their most valuable information.

Cyberhaven is committed to creating a diverse environment and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.