Top Tech Jobs & Startup Jobs in NYC, NY

Lead research and development of autonomous internal network and Active Directory attack capabilities for the NodeZero platform. Build production-grade Python systems, exploit vulnerabilities and misconfigurations, extend graph-based attack models, validate complex attack scenarios, and maintain safe, scalable offensive tooling. Mentor engineers, conduct code reviews, shape coverage priorities, document technical decisions, and collaborate with product, engineering, and customer-facing teams.

Build autonomous AI agents that translate proven attack paths into targeted security-control changes, safely apply or stage those changes, and verify remediation by rerunning attacks. Responsibilities include ML reasoning systems, evaluation and training data pipelines, counterfactual experiments, heterogeneous control-plane integrations, safety architecture, staged rollouts, rollback, auditability, and diagnosing agent failure modes. The role requires production ML engineering, agentic systems or LLM post-training, outcome-based evaluation, Python software engineering, distributed systems, and cloud infrastructure experience.

Owns business application engineering solutions from discovery through production support. Responsibilities include building Workato integrations, AWS middleware, Jira and Confluence workflows, secure automations, API and event-driven integrations, monitoring, documentation, and governance. The role also serves as a technical escalation point, mentors administrators, partners with business and AI teams, and applies least-privilege access and auditable data practices.

Build and scale a browser automation and crawling engine for autonomous web application penetration testing. Develop reliable Playwright and Stagehand workflows across complex JavaScript applications, authentication flows, WebSockets, file uploads, and anti-bot defenses. Improve crawl coverage, determinism, throughput, endpoint discovery, queueing, and state management across distributed browser sessions. Collaborate with offensive security engineers and contribute to graph-backed application mapping while balancing deterministic automation with selective LLM use.

Lead AI and LLM offensive security engineering by breaking agentic systems, researching prompt injection, tool-use exploitation, model and supply-chain attacks, and automating repeatable attack modules for NodeZero. Build production-grade LLM applications and microservices with safety, reliability, cost, and observability considerations. Drive threat modeling, exploit development, and technical strategy for AI security capabilities.

Lead the Data Streaming engineering sub-team responsible for reliable, scalable ingestion, normalization, and routing of cybersecurity telemetry. Manage and grow a 6–7 engineer team, establish SLOs and on-call processes, maintain schemas and data contracts, improve pipeline reliability and scalability, and collaborate with Security Research, Database Platform, and Asset Inventory teams. The role requires hands-on expertise with streaming architectures, cloud-native operations, data quality, and pipeline observability.

Design and own NodeZero’s over-the-air update infrastructure across thousands of customer deployments. Responsibilities include delivery protocols, version negotiation, rollout orchestration, health verification, rollback, fleet state management, constrained-environment delivery, reliability, incident response, architecture, production coding, and mentoring engineers. The role requires secure, highly reliable distributed systems that operate across air-gapped and customer-managed Kubernetes environments.

Staff Engineer responsible for database architecture, performance, reliability, migrations, and operational standards across PostgreSQL, graph, and time-series data stores. The role involves writing production code, analyzing query performance, designing failover and migration systems, mentoring engineers, and guiding database practices across teams. Candidates need deep PostgreSQL expertise, experience with graph and analytical databases, cloud or Kubernetes operations, and proficiency in Go or Python.

Drive enterprise sales growth for Horizon3’s cybersecurity platform by acquiring new accounts, managing customer relationships, exceeding quotas, developing channel partnerships, and leading the full sales cycle from qualification through negotiation and closure. Maintain Salesforce pipeline accuracy, conduct product demonstrations, manage post-sale ROI processes, and collaborate with distributed sales, support, and customer success teams. The role may require up to 50% travel within the assigned territory.

Lead a 6–7 person engineering team responsible for building, shipping, and maintaining production-grade integrations with security platforms such as CrowdStrike, SentinelOne, Splunk, and ServiceNow. Own the integration product roadmap, API contracts, reliability, compatibility, certification pipeline, and upstream change management. Partner with customer success, security research, and partnerships teams while hiring and developing engineers. The role requires hands-on technical expertise in Go or Python, enterprise authentication, event-driven architectures, AWS serverless services, and security data normalization.