Principal Backend Engineer
Principal Backend Engineer
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Salary Not Disclosed
1 Vacancy
Job Description
Vectra is the leader in AI-driven threat detection and response for hybrid and multi-cloud enterprises.
The Vectra AI Platform delivers integrated signal across public cloud SaaS identity and data center networks in a single platform. Powered by patented Attack Signal Intelligence it empowers security teams to rapidly prioritize investigate and respond to the most advanced cyber-attacks. With 35 patents in AI-driven threat detection and the most vendor references in MITRE D3FEND organizations worldwide rely on the Vectra AI to move at the speed and scale of hybrid attackers. For more information visit .
About Us
Were an early-stage startup on a mission to reinvent cybersecurity with AI-native infrastructure. Our vision is to help defenders move faster than adversaries by combining large-scale data modern AI and
intelligent automation. Were backed by top-tier investors and working with design partners across critical infrastructure and enterprise security. If youre excited about building from the ground up and shapingthe future of AI in cybersecurity wed love to talk.
This is a hybrid role with the expectation of working in our San Jose office 3 days per week.
Position Overview
Design and implement backend services that process streaming security data in real-time.
Build and optimize data pipelines for ingestion enrichment and retrieval.
Integrate and query graph databases to model threat actors relationships and context.
Develop RAG pipelines to support AI agent reasoning over knowledge bases and historical data.
Collaborate with AI researchers product and security teams to define APIs and interfaces for agentic workflows.
Own and operate services from design to production monitoring.
What Were Looking For
10 years of backend engineering experience ideally in high-scale or data-intensive environments.
Strong programming skills in Python Go or Rust.
Experience with streaming data technologies (Kafka Spark Flink).
Hands-on experience with one or more graph databases (Neo4j JanusGraph AWS Neptune).
Familiarity with vector databases and RAG patterns (embedding stores FAISS Weaviate Pinecone).
Understanding of scalable API and microservices design (REST gRPC WebSockets).
Comfortable in fast-paced ambiguous startup environments with a strong builder mindset.
Someone who is looking for a hybrid work environment with a minimum of 3 days in the San Jose office.
Nice to Have
Exposure to LLMs agent frameworks (LangChain AutoGen PydanticAI).
Experience with security data formats (Syslog Zeek Sigma etc.) and/or SIEM/XDR pipelines.
DevOps familiarity (Kubernetes Terraform observability stacks).
Why Join Us
Founding-level equity and full-stack ownership.
Work on hard meaningful problems at the intersection of AI and security.
High agency fast learning direct access to customers and users.
Backed by seasoned operators and security leaders.
Vectra provides a comprehensive total rewards packagethat supports the financial physical mental and overall health of our employees and their families. Compensation includes competitive base pay incentive plan eligibility and participation in the employee equity plan (stock options). Specific benefits offered varies by location but commonly include health care insurance income protection / life insurance access to retirement savings plans behavioral & emotional wellness services generous time away from work and a comprehensive employee recognition program.
Vectra is committed to creating a diverse environment and is proud to be an equal opportunity employer.
We are committed to equal employment opportunity regardless of race color ancestry religion sex national origin sexual orientation age citizenship marital status disability gender identity or Veteran status.
Required Experience:
Staff IC
Employment Type
Full Time
