The average salary range is between $ 137,265 and $ 207,568 year , with the average salary hovering around $ 165,000 year .
Principal engineer Jobs in Los Angeles, CA
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Principal engineer • los angeles ca
Last updated: 1 day ago
Hybrid (Minimum 4 days in office) | Full Time | https : / / kizen.At Kizen, we’re engineering a more humane future where AI drives universal healthcare, more impactful work, world-class education, ...Show moreLast updated: 30+ days ago
Principal Communication Systems Engineer.Our exciting Space client in the LA area are looking for a Principal Communication Systems Engineer to work across cutting-edge Communication Systems for Sa...Show moreLast updated: 7 days ago
Be among the first 25 applicants.Get AI-powered advice on this job and more exclusive features.This range is provided by Engtal.
Your actual pay will be based on your skills and experience talk with...Show moreLast updated: 1 day ago
Discovery, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community.
Please do not contact the recruiter directly.Discovery… the stuff dreams are...Show moreLast updated: 20 days ago
Principal Civil Engineer - Roadway.Southstar | DCCM has an immediate opening for an experienced.Principal Civil Engineer - Roadway.
Capital Improvement Program construction projects for our public a...Show moreLast updated: 6 days ago
JOIN THE CITY OF ORANGE AS A PRINCIPAL CIVIL ENGINEER (DESIGN ENGINEERING)!.Under general direction, plans, organizes, oversees, coordinates, and reviews the work of a major engineering unit within...Show moreLast updated: 7 days ago
Arcadis is the worlds leading company delivering sustainable design engineering and consultancy solutions for natural and built assets.
We are more than 36000 people in over 70 countries dedicated t...Show moreLast updated: 19 days ago
At Motorola Solutions we believe that everything starts with our people.Were a global close-knit community united by the relentless pursuit to help keep people safer everywhere.Our critical communi...Show moreLast updated: 15 days ago
Salary : $180,000-$240,000 annually DOE.Principal Engineer - Electrical.Vi is a growing engineering practice headquartered in San Ramon, CA, with offices across California and the U.We are seeking a...Show moreLast updated: 30+ days ago
Carollo Engineers is an internationally recognized environmental engineering firm that specializes in the planning, design, and construction of water and wastewater facilities.We are seeking a Prin...Show moreLast updated: 7 days ago
We anticipate the application window for this opening will close on - 28 Oct 2025.At Medtronic you can begin a life-long career of exploration and innovation while helping champion healthcare acces...Show moreLast updated: 16 days ago
Principal Turbomachinery Engineer – Founding Team Member Driving Next-Generation Propulsion Systems!.A well-funded, stealth-mode company in Southern California is developing a new generation ...Show moreLast updated: 2 days ago
A company is looking for a Principal Engineer.Key Responsibilities Lead transmission projects from conception through project award, collaborating with project managers to define requirements and...Show moreLast updated: 30+ days ago
Applications will be accepted on a continuous basis.First review begins December 1, 2025.Apply early for priority consideration.
The is like no other city in the world.Located in the heart of metrop...Show moreLast updated: 3 days ago
Founded in 2002, Infinity Ward is the original studio behind the Call of Duty® franchise.The titles developed by Infinity Ward have won more than 200 "Game of the Year" awards and 100 "Editor's Cho...Show moreLast updated: 30+ days ago
K2 Space is building large, high-powered spacecraft for the next generation of space development.Backed by Lightspeed Venture Partners, Altimeter Capital, and many others ($200M raised to date), we...Show moreLast updated: 19 days ago
Launch Potato is a profitable digital media company that reaches over 30M monthly visitors through brands such as.As The Discovery and Conversion Company our mission is to connect consumers with th...Show moreLast updated: 30+ days ago
RELOCATION ASSISTANCE : Relocation assistance may be available.At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around th...Show moreLast updated: 5 days ago
Jump is transforming the live sports experience with the only end-to-end fan engagement platform built specifically for sports teams and venues.
By focusing on aligned incentives between teams and f...Show moreLast updated: 5 days ago
Principal AI Engineer
KizenLos Angeles, California, United StatesFull-time
- Promoted
Principal Communication Systems Engineer
EVONALos Angeles, CA, United StatesFull-time
- Promoted
Principal Electrical Engineer
Engtal IncLos Angeles, CA, United StatesFull-time
- Promoted
Principal Analytics Engineer
Warner Bros. DiscoveryCulver City, California, United StatesFull-time
- Promoted
Principal Engineer
Southstar | DCCMSanta Fe Springs, CA, USFull-time
- Promoted
Principal Civil Engineer
City of Orange, CAPasadena, CA, United StatesFull-time +1
Principal Structural Engineer
ArcadisLos Angeles, California, USAFull-time +1
Principal Hardware Quality Engineer
Motorola SolutionsCulver, California, USAFull-time
- Promoted
Principal Engineer
3VILos Angeles, CA, USFull-time
- Promoted
Principal Engineer
Carollo EngineersLos Angeles, CA, United StatesFull-time
Principal Systems Engineer
MedtronicNorthridge, California, USAFull-time
- Promoted
Principal Turbomachinery Engineer
Approach VentureLos Angeles, CA, USFull-time
Principal Engineer
VirtualVocationsGlendale, California, United StatesFull-time
- Promoted
Principal Civil Engineer
City of West Hollywood, CAWest Hollywood, CA, United StatesFull-time
Principal Engineer
Infinity WardWoodland Hills, CA, USFull-time +1
- Promoted
Principal Development Test Engineer
K2 SpaceLos Angeles, CA, USPermanent
Principal Machine Learning Engineer
Launch PotatoLos Angeles, California, USAFull-time
- Promoted
Principal / Sr. Principal Software Engineer
Northrop GrummanLos Angeles, CA, USFull-time
Principal AI Engineer
JumpLos Angeles, California, USAFull-time
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- Santa Rosa, CA (from $ 161,951 to $ 223,848 year)
- Hillsboro, OR (from $ 119,125 to $ 223,300 year)
- San Antonio, TX (from $ 150,000 to $ 222,200 year)
- Lee's Summit, MO (from $ 115,000 to $ 222,200 year)
- San Bernardino, CA (from $ 150,000 to $ 222,200 year)
- Chandler, AZ (from $ 109,500 to $ 222,200 year)
- Des Moines, IA (from $ 131,250 to $ 222,200 year)
- New York, NY (from $ 142,989 to $ 221,370 year)
- Mesa, AZ (from $ 109,500 to $ 221,000 year)
The average salary range is between $ 120,710 and $ 189,961 year , with the average salary hovering around $ 149,870 year .
Principal AI Engineer
KizenLos Angeles, California, United States30+ days ago
Job type
- Full-time
Job descriptionLead the design and implementation of production-ready RAG systems that integrate seamlessly with our backend infrastructure using Django, Kafka, PostgreSQL, and Clickhouse Architect multi-agent AI systems that operate effectively within our platform's constraints and understand business value implications. Drive product strategy by providing accurate work estimations and technical roadmaps with minimal supervision. Design and implement sophisticated vector search solutions, including graph-based RAG systems Architect and build highly scalable LLM-powered systems that can handle enterprise-level workloads Lead LLM fine-tuning initiatives to customize models for specific business domains and use cases Design and implement user feedback systems to collect, analyze, and incorporate insights for continuous improvement Optimize LLM performance, cost, and reliability in production environments Establish MLOps best practices using platforms like Langfuse or LiteLLM to ensure robust model monitoring and evaluation Mentor and develop junior engineers in AI / ML best practices Collaborate with cross-functional teams to translate business requirements into technical solutions Lead system architecture decisions and technical direction for AI initiatives Evaluate emerging AI technologies for potential adoption Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field 8+ years of backend engineering experience with Django, Kafka, and PostgreSQL 4+ years of hands-on experience building and deploying machine learning systems Proven track record of implementing production RAG systems at scale Strong experience in product management, including work estimation and roadmap planning Experience building solutions at scale with large enterprise data in healthcare, finance, or banking sectors. Expert-level Python development skills with Django experience Deep understanding of distributed systems and message queuing using message broker systems (e.g., Kafka) Advanced PostgreSQL knowledge, including optimization for AI workloads Experience building and optimizing retrieval-augmented generation (RAG) systems Experience architecting and implementing multi-agent AI systems Knowledge of deep learning frameworks (PyTorch or TensorFlow) and NLP, particularly transformer architectures Experience with cloud platforms (AWS preferred) and containerization (Docker, Kubernetes) Experience building solutions using pre-trained LLMs (OpenAI, Claude, Llama, etc.) Strong background in MLOps practices and tools, including platforms like Langfuse or LiteLLM Proficiency in writing clean, well-documented code and troubleshooting complex issues Experience in testing and validating products and communicating results with stakeholders Experience applying graph algorithms to machine learning problems Strong experience with modern NLP techniques and transformer architectures Knowledge of evaluation metrics for NLP system performance Solid foundation in probability theory and statistical inference Experience with statistical modeling and hypothesis testing Understanding of sampling methods and experimental design Proven experience designing and implementing scalable LLM-powered systems in production environments Deep understanding of LLM orchestration and optimization techniques for high-throughput applications Experience with prompt engineering, fine-tuning, and context window management for optimal LLM performance Demonstrated expertise in LLM fine-tuning methodologies, including RLHF, PEFT, and LoRA techniques Experience building data collection pipelines for LLM training and fine-tuning Knowledge of efficient usage strategies, cost optimization for LLM API consumption, and performance optimization of large-scale deployments. Experience implementing LLM caching mechanisms and vector store optimizations Expertise in designing fault-tolerant LLM architectures with appropriate fallback mechanisms Understanding of techniques to reduce latency in LLM-powered applications Knowledge of strategies for handling data privacy and security in LLM applications Knowledge of model monitoring and evaluation techniques Experience designing and implementing robust user feedback collection systems for AI applications Knowledge of feedback aggregation and analysis techniques to identify patterns and improvement areas Experience building systems that leverage user feedback for continuous LLM improvement Understanding of human-in-the-loop approaches for refining AI system outputs Experience with A / B testing frameworks to evaluate AI system changes Ability to translate user feedback into actionable model improvements Experience implementing evaluation frameworks to measure AI system quality and performance Demonstrated ability to lead technical initiatives and architectural decisions Experience managing technical product roadmaps and providing accurate work estimations Strong problem-solving skills and ability to work independently on complex projects Strategic thinking ability to balance immediate solutions with long-term scalability Excellent collaboration skills when working with cross-functional teams Excellent written and verbal communication skills in English Driven, self-motivated, adaptable, empathetic, energetic, and detail-oriented Experience with graph-based RAG systems Contributions to open-source projects in backend or AI domains Experience with streaming data processing at scale Deep interest in emerging AI technologies and their practical applications Strong mentoring capabilities to guide and develop team members Ability to work in our Los Angeles or Austin office Hybrid Work Model Career Growth Opportunities Engaging Work Culture Top-Tier Compensation Equity Package Healthcare Coverage Professional Development Stipends PTO
Los Angeles "Near UCLA" | Hybrid (Minimum 4 days in office) | Full Time | https : / / kizen.com
About Us
At Kizen, we’re engineering a more humane future where AI drives universal healthcare, more impactful work, world-class education, exceptional customer experiences, and — overall — a more fulfilling human experience.
Kizen is on a mission to give every team member an AI Assistant - turning every company into an AI-company, every worker into an AI-Enhanced Worker, and every Process into an AI-optimized, continuously improving process. Kizen is the first GenAI enterprise application builder. Businesses of any size, within any industry can build AI assistants for complex jobs across healthcare, finance, and HR and modern enterprise applications - like CRMs, Workflow Automation, Real Time Dashboards, and Secure Portals in minutes and perfect them in an afternoon. Kizen helps teams systematically improve processes and business outcomes with data-driven insights and powerful automation with access to all the latest AI models.
About the Role
Shape the Future of AI at Kizen
Are you ready to push the boundaries of what's possible with AI and backend systems? At Kizen, we're engineering intelligent systems that combine cutting-edge AI with robust backend architecture to revolutionize healthcare, redefine work-life balance, transform education, and elevate customer experiences. Our mission is to create technology that doesn't just work – it transforms how businesses operate.
As we rapidly expand, we're seeking exceptional engineers who excel in both AI development and backend systems. This is your opportunity to be part of something transformative – to architect and build systems that set new benchmarks for what technology can achieve across industries.
At Kizen, you'll join a brilliant, fun team tackling challenges that matter. We offer :
- The opportunity to work on groundbreaking AI technologies with real-world impact
- A startup culture that values innovation, ownership, and rapid iteration
- Regular opportunities to present your technical solutions to company leadership
- A supportive environment for professional growth and learning
We're looking for a Principal AI Engineer to provide strategic feedback and direction for our engineering team as we bring our next-generation platform to the world. In this position, you'll architect, plan, and build sophisticated AI systems with collaborators seamlessly integrating with our backend infrastructure, focusing on generative AI, retrieval-augmented generation (RAG), and multi-agent architectures.
Key Responsibilities
Experience
Required Qualifications
Education and Experience
Technical Expertise
ML / AI Experience
LLM Systems Expertise
User Feedback and System Improvement
Professional Skills
Preferred Qualifications
Why Kizen
We’re a fast-growing company that values innovation, growth, and continuous improvement. By joining Kizen, you’ll play a pivotal role in shaping the future of the company while enjoying a supportive, dynamic, and collaborative workplace. You’ll have opportunities for professional development, impact, and career advancement.
What We Offer
Kizen is proud to be an equal-opportunity employer. We are committed to building a diverse and inclusive culture that celebrates authenticity to win as one. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, disability, protected veteran status, citizenship or immigration status, or any other legally protected characteristics. At Kizen, we fully comply with the Americans with Disabilities Act (ADA). We are dedicated to embracing challenges and creating an accessible, inclusive workplace for all individuals.
The base salary range for this position is $250,000-$350,000. However, base pay offered may vary depending on job-related knowledge, skills, and experience. In addition to base salary, we also offer generous equity and benefits packages.
If you’re excited about creating impact experiences and contributing to a fast-paced, people-focused team, we’d love to meet you!
OTE - $312,000-$412,000K
Compensation Range
$250,000 - $412,000 USD