Sr. AI/ML Engineer
Sr. AI/ML 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.
About the Role
Were hiring an AI/ML Engineer to design build and deploy machine learning systems at the heart of our platform. Youll work on problems like dynamic threat detection LLM-powered agent reasoning RAG
pipelines and adversarial behavior modeling. Youll collaborate across research backend and security teams to ship high-impact features fast.
If youre a hands-on ML engineer who loves shipping smart systems in messy real-world domains this is for you.
What Youll Do
Build and fine-tune models for threat detection anomaly detection and behavioral modeling (supervised unsupervised and semi-supervised).
Implement and optimize LLM-powered agents that reason over structured and unstructured security data.
Develop RAG pipelines that combine embeddings vector search and context injection.
Work with streaming and historical security data (logs events alerts) to train and evaluate models.
Collaborate with backend and platform teams to deploy models in scalable low-latency environments.
Continuously improve model performance robustness and explainability.
What Were Looking For
3 years of hands-on experience in applied ML or MLOps (or PhD with practical implementation).
Strong ML fundamentals (classification clustering anomaly detection embedding techniques).
Experience working with real-world noisy data ideally in time series logs or graph-structured form.
Experience with LLMs (e.g. OpenAI Mistral Llama) embeddings and vector databases. Well-versed in techniques for long context (chunking sliding window hierarchical summarization).
Solid skills in Python PyTorch or TensorFlow and ML pipelines.
Strong collaboration and ownership mindsetyou write clean code ask great questions and iterate quickly.
Someone who is looking for a hybrid work environment with a minimum of 3 days in the San Jose office.
Nice to Have
Familiarity with cybersecurity data (SIEM logs alerts EDR telemetry threat reports).
Experience with agent frameworks (LangChain AutoGen CrewAI) and agent protocols.
Exposure to adversarial machine learning or explainability techniques.
Infra skills for ML (Docker K8s GPU scheduling model serving).
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:
Senior IC
Employment Type
Full Time
