Jobs in the United States

25+ jobs

Group jobs by employerEmail me new jobs Save this search

Added just now
I&C Engineer (Level III or Senior Level) – Gas – PM&C (Project Management & Construction)
Duke Energy Business Services, LLC
Charlotte, NC · Raleigh, NC · Plainfield, IN · St. Petersburg, FL · Cincinnati, OH
· Must have obtained Bachelor of Science in Engineering from an ABET accredited program or PE
Added just now
UO
AUTOMATION ENGINEER #00084285
University of Missouri System
MO
- $60,944 to $86,632 USD / year
The Information Technology Department supports administrative systems, academic technologies, and research computing. System reliability and campus operations are strengthened through IT…
Added 1 min ago
UG
Lead Software Engineer
UnitedHealth Group
Raleigh, NC
- $112,700 to $193,200 USD / year
…that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve…
Added 1 min ago
Cable and Optics Engineer
Hopkinton, MA
…solutions, and data management our customers need most. Our teams design and develop the hardware and software that connect infrastructure, accelerate computational workloads, integrate…
Added 3 mins ago
Enterprise Architect (Solutions Engineer), Identity
Workday, Inc.
Remote, United States
…governance capabilities, expected to become part of Workday's Agent System of Record, to prospects and customers. This team sits at the exciting intersection of Sales, Product Management,…
Added 3 mins ago
Software Development Engineer II - Regression Infrastructure, Trainium Manufacturing Infrastucture
Annapurna Labs (U.S.) Inc.
Austin, TX
You might start by reviewing overnight health reports for the regression systems and checking that every system is configured, connected and ready. Then you could dig into a recurring…
Added 6 mins ago
Estimator - BESS
RES
United States
…accurate, competitive, and timely estimates for Bid-Build and EPC (Engineer-Procure-Construct) construction Requests for Proposals…
Added 6 mins ago
Senior Safety and Environmental Compliance Engineer
Tarana Wireless, Inc.
Milpitas, CA
As a Senior Safety and Environmental Compliance Engineer, you will work in a team whose primary responsibility is to bring up and maintain a stable operating platform and build a system for…
Added 6 mins ago
CA
Building Inspector (6331) - Citywide - (X00137)
City and County of San Francisco
San Francisco, CA
- $142,116 to $172,770 USD / year
…structures as well as health and sanitation codes; and building…
Added 7 mins ago
Full-stack Engineer 4
Capital One
Richmond, VA
Provide technical leadership and direction across Agile teams, setting standards for design, development, and operational excellence
Added 7 mins ago
Network Engineer 4 ((Cloud Operations Resilience Engineering)
Capital One
Plano, TX · McLean, VA · Richmond, VA
…frameworks and emerging technologies to join our team. As a Network Engineer, you’ll have the opportunity to be on the forefront of driving a major transformation across Capital…
Added 7 mins ago
Controls Engineer - HV Systems & Electrified Powertrain
FEV North America Inc
Sterling Heights, MI
FEV is seeking an experienced and highly skilled engineer in the field of hybrid/electric vehicle control systems, high-voltage system integration, and embedded controls for electrified…
Added 8 mins ago
Electrical Engineer II - Space Avionics Integration
Blue Origin LLC
Seattle, WA
…engage program leadership and engineers to drive intelligent system design, part selection, subcontracts, and…
Added 8 mins ago
CI
System Engineer Level 3
CHAREM ISD and our local districts
Charlevoix, MI
- From $35.92 USD / hour
- Tier 3 Escalation Support: Act as the senior technical escalation resource for Level 1 and Level 2 System Engineers to diagnose and resolve complex hardware, software, server, and network…
Added 9 mins ago
Logistics Project Engineer
Airbus Americas, Inc.
Mobile Area, AL
Airbus Commercial Aircraft is looking for a Logistics Project Engineer to join our Logistics Operational Excellence team based in Mobile, AL.
Added 9 mins ago
Electrical Controls Engineer Level I or Level II - Corporate
RMC
Portland, OR
The Electrical Controls Engineer will support the design of industrial machinery controls used in the manufacture of high-efficiency, electric motor-driven industrial air compressors. This…
Added 9 mins ago
AE
Sr Firmware Engineer
Advanced Energy Industries, Inc
Wilmington, MA
- $110,000 to $150,000 USD / year
We are seeking for a Senior Firmware Engineer based in Wilmington, MA. In this position, you will lead the embedded firmware architecture for the next generation platform using C++…
Added 10 mins ago
Engineering Technician 7 - Balloon Parachute Rigger
Analytical Mechanics Associates, Inc.
Remote, United States
SSHINE will provide concept design, development, integration, test and evaluation, and engineering prototypes to demonstrate the viability of innovative space technologies along with…
Added 10 mins ago
Fulfillment Automation Solutions Engineer
Beacon Biosignals
Remote, United States
As a Fulfillment Automation Solution Engineer, you will be a founding member of FAST, the Fulfillment Automation Solutions Team. FAST’s mandate is to deliver Beacon Platform tools and…
Added 11 mins ago
Cable and Optics Engineer
Dell
Hopkinton, MA
…solutions, and data management our customers need most. Our teams design and develop the hardware and software that connect infrastructure, accelerate computational workloads, integrate…
Added 11 mins ago
Analog Design Eng Intern - High-Speed/RF
Texas Instruments
Santa Clara, CA
Partnering with business teams and system engineering to develop mutually agreeable design specifications
Added 11 mins ago
Analog Design Eng Intern - High-speed/RF/mm-wave
Texas Instruments
Dallas, TX
Partnering with business teams and system engineering to develop mutually agreeable design specifications
Added 11 mins ago
Analog Design Eng Intern (GaN Device)
Texas Instruments
Santa Clara, CA
Kilby Labs is looking for a qualified internship candidate for the position of Analog Design Engineer with focus on GaN and TFT device technology: process- and device-design,…
Added 12 mins ago
Project Engineer - Electrical & Controls (Jackson, TN)
Mars Wrigley Conf. (MCNA)
United States
Designing systems and selecting hardware and/or directing third-party engineering and/or system Integrator firms Providing design services to meet their contract deliverables
Added 13 mins ago
EC
Senior Software QA Engineer - Automation
Entrust Corporation
Shakopee, MN
- $91,619 to $134,375 USD / year
Must have unrestricted work authorization in the U.S · Where you will be: This is a hybrid role requiring three days per week in our Shakopee, MN headquarters office

Rapid7

Principal AI Engineer

Remote, United States

$221,000 to $299,000 USD / year

Apply on mymoose.wd1.myworkdayjobs.com About employer

Applications open in a new tab.

Job details

Pay: $221,000 to $299,000 USD / year
Experience: 12+ years of software or ML engineering experience, including 2+ years building production LLM or agentic AI systems.
Posting language: English
Posted: Nov 13, 2026

Original job description

Our Engineering organisation is scaling its AI Engineering capabilities under new leadership, creating an opportunity to build the next generation of AI at Rapid7. We’re looking for Principal AI Engineers to join us and help shape what comes next by defining and influencing the technical direction of our LLM and agentic AI systems. As a Principal AI Engineer, you’ll raise the bar for engineering standards, and build truly cutting edge greenfield solutions that deliver real impact for our Global customers. Through your technical leadership and mentoring, you’ll help shape our product and platform investments and influence how we build and scale AI across the organisation.

About the Team AI is reshaping cybersecurity on both sides. Attackers can use AI to strike at machine speed, and only AI-powered defense can keep up. At the same time, organizations can only adopt AI with confidence if it is secure. Rapid7 sits at the intersection of security and AI, and we are building industry-defining products for this new era. Rapid7's AI Engineering team builds the AI that powers our security platform. We are AI engineers and applied scientists who take models from research to production, combining open-source and frontier LLMs, AI agents, and fast predictive models with more than 20 years of Rapid7 security expertise. Our work drives core use cases across Detection and Response, such as alert triage, threat investigation, and automated response, and Exposure and Remediation, such as vulnerability prioritization, attack surface risk assessment, and guided remediation. Together, these help customers stop threats faster and fix what matters most.

About the Role As a Principal AI Engineer, you will set the technical direction for how Rapid7 builds, tunes and serves LLMs and agentic systems across its security products. You understand LLMs from the ground up, from transformer internals and training to fine-tuning and inference optimization, and you stay hands-on with the hardest problems. You know where LLMs shine and where they fall short, and you treat them as one tool in the AI toolbox, alongside predictive AI and classical ML, choosing the right approach for each problem. Specifically your focus will be to:

Define the architecture and technical roadmap for LLM and agentic AI systems across Detection and Response and Exposure and Remediation
Lead model strategy: when to use frontier or open-source models, and when to fine-tune, distill, or post-train
Fine-tune, distill and post-train open-source LLMs on security data, from data curation through training, evaluation and deployment
Set engineering standards for context engineering, inference optimization, and evaluation across teams
Optimize LLM inference at scale with techniques such as speculative decoding, KV-cache management, continuous batching, quantization and custom kernels, balancing quality, latency and cost
Establish evals as the release gate for every AI system we ship
Lead design reviews and resolve the hardest technical trade-offs
Stay hands-on: prototype and build critical model, training and inference code yourself
Mentor Staff and Senior engineers and shape product and platform investment

The skills and qualities you’ll bring include:

12+ years of software or ML engineering experience, including 2+ years building production LLM or agentic AI systems. A PhD in Computer Science, Machine Learning, AI or a related field is preferred, or equivalent depth of expertise demonstrated through industry experience and technical contributions
A track record of building scalable, production-grade AI systems used across multiple teams or products with a strong history of organization-wide impact through technical leadership, mentoring, and shared platforms and standards
LLMs from first principles: deep understanding of transformer architecture, attention, tokenization and positional encodings, and how models are trained and served, with the ability to implement core components from scratch
PyTorch: expert-level, including custom model code, training loops, mixed precision and distributed training (e.g., FSDP, DeepSpeed)
Fine-tuning and post-training: hands-on full and parameter-efficient fine-tuning (LoRA, QLoRA) of open-weight LLMs, distillation, and preference or RL-based methods (e.g., DPO, GRPO)
Context engineering: retrieval, memory, and context management for long-running agent workflows
Inference optimization: deep knowledge of prefill and decode, KV-cache management (e.g., PagedAttention, prefix caching), continuous batching, speculative decoding, FlashAttention and quantization, and serving at scale with vLLM, SGLang or TensorRT-LLM
Evals: defining evaluation strategy and benchmarks for LLM and agent systems
Strong predictive AI and classical ML fundamentals, and the judgment to choose between them and LLMs based on accuracy, latency and cost
Strong distributed systems and Python fundamentals
Takes ownership of significant technical outcomes across multiple teams, proactively identifying and addressing risks, driving complex challenges to resolution and ensuring solutions deliver against agreed technical and customer objectives
Strong communicator with the ability to explain technical trade-offs to engineering, product, and leadership audiences
Builds strong cross functional partnerships across Engineering, Product, and other teams to align on technical direction and deliver shared outcomes
Connects customer needs and business priorities to technical decisions, evaluating the value, cost and trade-offs of AI solutions to ensure investments deliver measurable customer and business outcomes
Embody our core values to foster a culture of excellence that drives meaningful impact and collective success

Preferred Skills and Experience:

Experience pre-training or training LLMs from scratch
Experience writing GPU kernels (CUDA or Triton) and profiling GPU workloads
Security domain experience, such as detection engineering, SOC/MDR, or vulnerability management
Experience running AI workloads on AWS at scale
Publications, patents, or open-source contributions in AI

We know that the best ideas and solutions come from multi-dimensional teams. That’s because these teams reflect a variety of backgrounds and professional experiences. If you are excited about this role and feel your experience can make an impact, please don’t be shy - apply today.

About Rapid7 At Rapid7, our vision is to create a secure digital world for our customers, our industry, and our communities. We do this by harnessing our collective expertise and passion to challenge what’s possible and drive extraordinary impact. We’re building a dynamic and collaborative workplace where new ideas are welcome.

Protecting 11,500+ customers against bad actors and threats means we’re continuing to push the envelope just like we’ ve been doing for the past 20 years. If you ’re ready to solve some of the toughest challenges in cybersecurity, we’re ready to help you take command of your career. Join us.

Rapid7, Inc. is committed to fair and equitable compensation practices. A candidate’s salary is determined by various factors including, but not limited to, relevant work experience, skills, and certifications. We evaluate compensation decisions on a case-by-case basis, and it is not typical for an individual to be hired at the very top of the salary range.

The annual salary range for this role, depending on location, is:

United States: $221,000.00 - 299,000.00 USD Annual Salary ranges may vary based on geographical location. This range does not include variable/incentive compensation, equity and benefits (where applicable/eligible).

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or any other status protected by applicable national, federal, state or local law.

Apply on mymoose.wd1.myworkdayjobs.com About employer

More about this job

Skills

Leadership
Rapid7
Cybersecurity
Research
Prioritization
Hazard assessment
ML
Computer science
Machine learning
Coaching
PyTorch
Python
AWS

Report this job

Work requirements

Jobs in the United States