Gen AI Staff Engineer

PlexTrac is the #1 AI-powered penetration test reporting tool and platform for real time threat exposure management. It helps cybersecurity teams address the most critical threats and vulnerabilities efficiently. This innovative approach has allowed PlexTrac to gain significant traction among companies and teams of all sizes, including several of the Fortune 500.

Having recently closed a $70 million Series B funding round as of February 2022, PlexTrac is poised for exponential growth and is seeking top notch talent for strategic roles to join the team. Candidates interested in leveraging extensive professional experience to build innovative programs around a new concept in the cybersecurity market and who love working in a fast-paced, energetic start-up environment should apply!

PlexTrac Mission and Culture is to empower teams to win the right cybersecurity battles. PlexTrac is culturally a mission-oriented organization, by which we mean that we seek to make the lives of our customers better knowing that their improved efficiency and effectiveness has a direct impact on the security of our world. Likewise, we seek to improve the lives of our employees by creating a workplace in which they can flourish professionally and personally. We are flexible, creative, collaborative, detail oriented, humble, hard workers who practice what we preach. Those attributes in our team members lead to and are rewarded with a fast-paced, never boring, fun loving work environment — whether we are physically or virtually present with one another.

Our core values describe us as humans and leaning into them is how we define success:

• Integrity through transparency and accountability 
• Aggressive innovation
• Positively impact people

We are looking for an experienced, hands-on Gen-AI Staff Engineer to set technical direction, build core systems, and translate complex ML/AI tradeoffs into business outcomes everyone understands — from ICs to the CEO. As a Gen AI Staff Engineer, you'll be at the forefront of our AI for CTEM (Cybersecurity Threat Exposure Management) initiative, playing a pivotal role in shaping its architecture, driving innovation, and guiding a skilled development team.

If you're into building cutting edge solutions that have a real impact on organizations' cybersecurity and enjoy working in a collaborative, cross functional start up environment, apply today!

Key Responsibilities

• Lead technical strategy and architecture for our Gen-AI initiatives: model selection, data pipelines, infrastructure, inference, monitoring, and cost controls
• Build and ship production AI embedded products (prompt orchestration, fine-tuning pipelines, retrieval-augmented generation, model serving, observability)
• Be the principal engineer for AI: hands-on coding, designing APIs, owning reliability and performance at scale
• Translate technical tradeoffs to non-technical stakeholders (product, sales, execs) and create clear decision frameworks
• Mentor engineers, set engineering standards, and grow the AI engineering playbook (tests, data quality, safety guardrails)
• Drive vendor & model strategy (open-source vs hosted LLMs)
• Strong communicator — able to explain complex ML topics to PMs, sales, legal, and executives

Qualifications

• 7+ years software engineering experience 
• Proven, hands-on history shipping ML/AI systems into production (fine-tuning or instruct-tuning, RAG, vector DBs, model serving)
• Deep technical understanding of inference stack, scaling, latency/cost tradeoffs, and data pipelines
• Experience choosing/training models (LLMs/transformers) and deploying safely with monitoring/observability
• Hands-on experience in fine-tuning LLMs, Agentic AI, MCPs and RAG systems
• 2+ years of experience in AI/ML engineering, with a focus on NLP, LLMs, and conversational AI
• Strong experience with Python and knowledge of JavaScript development (TypeScript, React)
• Experience in building data pipelines, analytics, ETL processes, SQL, and event streaming
• Strong systems and