Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior AI Engineer (LLM & Agent Systems) — Platform

Full-time

Calliere



Role Summary


This role focuses on designing and scaling reusable AI-driven workflows, particularly those powered by large language models and autonomous agents. You will build foundational components and abstractions that enable multiple internal teams to rapidly develop and deploy intelligent systems. The position emphasizes system reliability, evaluation rigor, and thoughtful tradeoffs in model and tooling selection.

Core Ownership Areas


  • Develop reusable agent-based workflows to accelerate delivery across multiple projects.


  • Define and maintain evaluation standards to ensure consistent model performance over time.


  • Improve system reliability across key dimensions such as accuracy, latency, and robustness.


  • Build shared APIs and platform components used broadly across engineering teams.


Key Responsibilities


  • Design and implement orchestration patterns for LLM-powered agents.


  • Evaluate and select models, tools, and providers based on performance, cost, and reliability.


  • Build testing frameworks, evaluation pipelines, and monitoring systems for AI outputs.


  • Implement safeguards, fallback mechanisms, and cost optimization strategies.


  • Collaborate with platform and backend engineers to integrate AI capabilities into scalable services.


  • Identify repeatable patterns across projects and convert them into reusable platform features.


Requirements

Required Experience


  • Strong background in building production-grade distributed systems or platform infrastructure.


  • Practical experience developing and deploying LLM-based or agent-driven systems.


  • Demonstrated ability to design for reliability, observability, and cost efficiency.


  • High standards for code quality and system design.


Nice-to-Have Experience


  • Familiarity with retrieval systems, embeddings, or context management pipelines.


  • Experience working within regulated or security-conscious environments.


Approach to Work


  • Prioritizes measurable quality through structured evaluation and testing.


  • Designs systems for reuse, scalability, and clean abstraction layers.


  • Focuses on building solutions that generalize beyond a single use case or team.


Benefits



- Hybrid onsite.


- Incredible perks and comp package. 

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior AI Engineer (LLM & Agent Systems) — Platform in King County, WA vacancy
  • Metropolis Technologies is seeking a Senior AI Engineer to join our Applied AI organization. You will own end-to-end AI-powered systems, from prompt pipelines to production deployment...  ...build robust data pipelines, maintain LLM-based architectures, and ensure reliable,... 
    Senior

    Metropolis Technologies

    Seattle, WA
    4 days ago
  •  ...seeking a highly experienced Senior AI Solutions Engineer to design, develop, and...  ...hands-on experience building LLM-powered applications, RAG architectures...  ...and enterprise-scale data platforms such as Snowflake,...  ..., APIs, and enterprise systems. Evaluate and optimize model... 
    Platform
    Senior

    Qaurs Techno Systems LLC

    Bellevue, WA
    27 days ago
  •  ...their careers. Role: Senior Python AI Engineering Lead Location:...  ...Python-based AI compliance platform. This is a hands-on player...  ...RAG, REST APIs, event-driven systems, and cloud-native infrastructure...  ...analysis pipelines, and LLM-powered features. Build... 
    Platform
    Senior

    NMK GLOBAL, INC

    Bellevue, WA
    3 days ago
  • $146.88k - $220.32k

     ...We are a small engineering team at the Allen Institute for AI working on AI for the...  ...advanced AI-powered platform delivers real-time...  ...understanding the system, not blaming individuals...  ...We are building an agent platform for...  ...experience shipping LLM agents to production... 
    Platform
    Senior
    Full time
    Contract work
    Work at office
    Local area
    Flexible hours
    Weekend work

    The Allen Institute For Artificial Intelligence

    Seattle, WA
    1 day ago
  •  ...client backs and builds AI-native ventures from...  ...they're looking for a Senior AI Engineer who wants to be a core...  ...shipped end-to-end AI systems to production, built things...  ...on someone else's platform and wants to see their...  ...agentic AI systems: agents, retrieval, orchestration... 
    Platform
    Senior
    Full time

    Calliere

    King County, WA
    1 day ago
  •  ...receive stable and reliable platform services in different...  ....The Global E-commerce Engineering Efficiency team focuses...  ...release and deployment systems, developer tooling, and...  ....- Design and deliver AI-powered developer...  ...support tools.- Integrate AI/LLM capabilities into... 
    Platform
    Senior

    TikTok

    Seattle, WA
    a month ago
  • $137.4k - $161.7k

     ...ready to make an impact?Senior AI Software Engineer – Technology &...  ...build modern software systems from concept through production...  ...including intelligent agents, copilots, workflow automation, and LLM-powered experiences...  ...capabilities into existing platforms and engineering... 
    Platform
    Senior
    Local area
    Immediate start
    Flexible hours

    West Monroe Partners

    Seattle, WA
    a month ago
  •  ...solutions for establishing system user's credentials,...  ...Forward Deployed Engineer is a production engineer...  ...teams—to make AI systems secure, governed...  ...client environments—LLM systems, multi-agent pipelines, RAG architectures...  ...risk across cloud platforms (AWS, Azure, or GCP)... 
    Platform
    Senior
    Full time
    Work experience placement
    Live in
    Work at office
    Local area

    Accenture

    Seattle, WA
    a month ago
  • $135.2k - $306.4k

     ...in Computer Science, AI/ML, Engineering, or a related...  ...ownership of production systems, or equivalent Senior Staff / Principal-level...  ..., infrastructure platforms, or AI/ML platform services...  ...strong knowledge of LLM application patterns...  ...inference gateways, agent runtimes, workflow... 
    Platform
    Senior
    Full time
    Flexible hours

    Oracle

    Seattle, WA
    7 days ago
  •  ...bulldozers, loaders, excavators—into AI-powered fleets that operate...  ...defense operations as a TRL9 hardened system, not a science experiment. Built by engineers from mining, construction, Waymo,...  ...control stacks into production platforms. Leverage simulation, digital... 
    Platform
    Senior
    Full time

    Aim Company

    Seattle, WA
    1 day ago
  • $184k - $287.5k

     ...powers innovative AI research and developers...  ...building the AI/ML platform for improving...  ...infrastructure software engineer to join our team....  ...in production.As a senior DGX Cloud AI Infrastructure...  ...large-scale AI, LLM, and GenAI...  ...track and improve system and service reliability... 
    Platform
    Senior
    Full time
    Remote work

    Nvidia

    Seattle, WA
    4 days ago
  •  ...usher in this new era, we seek AI-native thinkers across every function...  ...team empowers Snowflake engineers to do what they do best: write...  ...world's best Developer Experiences platform using the latest AI advancements. We own Bazel Build systems, IDEs, and Cloud Workspaces. We... 
    Platform
    Senior
    Full time
    Work at office

    Snowflake

    Bellevue, WA
    1 day ago
  •  ...Opportunity A rapidly scaling AI value-creation firm; one that sits...  ...building, private equity operations, and platform engineering is looking for a senior FDEr to embed directly inside...  ...portfolio companies and ship production AI systems that actually change how those... 
    Platform
    Senior
    Full time

    Calliere

    King County, WA
    1 day ago
  • $236k - $330k

     ...this new era, we seek AI-native thinkers across...  ...are looking for talented systems developers and researchers...  ...state of the art in LLM inference systems and optimization...  .... We embrace AI-native engineering, using AI not only as...  ..., hardware platforms, workload characteristics... 
    Platform
    Senior
    Shift work

    Snowflake

    Bellevue, WA
    8 days ago
  • $176.76k - $232k

     ...The Enterprise Data & AI team is a strategic and...  ...the data and AI platforms and products that enable...  ...responsibilities As a Senior AI/ML Engineer, you will lead the delivery...  ...to architectures and system design for serving AI/...  ...and engineering of LLM and GenAI systems including... 
    Platform
    Senior
    Permanent employment
    Contract work
    Part time
    Work visa

    lululemon

    Seattle, WA
    2 days ago
  • $173.9k - $235.2k

     ...complex challenges.Within ASP, the AI & Strategic Partner Engineering team is seeking a Senior Systems Development Engineer to create...  .... You'll build and manage AI agents that handle operational tasks...  ...solutions that bridge both platforms.You'll design, build, and harden... 
    Platform
    Senior
    Internship
    Worldwide
    Flexible hours

    Amazon

    Seattle, WA
    a month ago
  • $140k - $180k

     ...way their clients do business.  As a Senior AI Engineer, you will understand how AI is positioned...  ...~ Production experience with Azure AI platform, and the implementation of enterprise...  ...Things. Reply services include Consulting, System Integration and Digital Services.... 
    Platform
    Senior
    Full time

    Reply

    Seattle, WA
    1 day ago
  • $159.2k - $301.6k

    The Opportunity We are looking for a Senior AI Systems Engineer with deep C++ expertise to help build...  ...generation of AI-enabled product and platform capabilities. This role sits at the intersection...  ...codebases to AI-powered services, agents, and model-backed workflows. Define... 
    Platform
    Senior
    Full time
    Temporary work
    Local area
    Remote work
    Worldwide

    Adobe Systems

    Seattle, WA
    5 days ago
  •  ...this new era, we seek AI-native thinkers across...  ...of how work gets done.Senior Software Engineer — Cortex TrainingThe Snowflake ML Platform team's mission is to let...  ...Cortex Training is our LLM post-training platform:...  ...handle the hard distributed-systems parts, including... 
    Platform
    Senior

    Snowflake

    Bellevue, WA
    a month ago
  • $150k - $210k

     ...Role Overview As a Senior Applied AI Engineer at MediaAlpha, you will be a key contributor building LLM-powered applications for our...  ...internal teams and ad serving platform. You will implement features...  ...use patterns, and multi-step agent workflows. Integrate LLM-... 
    Platform
    Senior
    Full time
    Work at office
    Local area
    3 days per week

    Mediaalpha Inc.

    Bellevue, WA
    1 day ago
  •  ...Integration Engineer – Fullstack PythonWe are seeking a talented...  ...background to join our AI solutions team. In this role...  ...and optimizing intelligent systems leveraging AI agents, the LangGraph framework, and...  ...management.Experience with cloud platforms (AWS, GCP, Azure),... 
    Platform

    Diversity Nexus

    Seattle, WA
    5 days ago
  • $115.4k - $173k

     ...content into other game engines and 3D environments...  ....We’re building systems that allow real-...  ...emerging software platforms. We’re also developing...  ...by future AI-driven tools and systems...  ...evaluation loops, agents, tool use, or model...  ...style tool interfaces, LLM agents, multimodal... 
    Platform
    Senior
    Full time
    Work at office
    Remote work
    Worldwide

    Unity Technologies

    Bellevue, WA
    a month ago
  • $126.56k - $189.84k

     ...degrades. Phaidra creates AI-powered control systems for the industrial sector,...  ...AI control systems (i.e. agents) without writing code. They...  ...As an AI Controls Solutions Engineer, you'll play a critical role...  ...role is to use Phaidra's platform and tools to put AI into production... 
    Platform
    Senior
    Temporary work
    Work experience placement
    Work at office
    Local area
    Remote work
    Flexible hours

    Phaidra

    Seattle, WA
    3 days ago
  • $200k - $275k

     ...Every Identity, from AI to HumanIdentity is the...  ...users. Okta for AI Agents extends that work to...  ...alongside their identity, platform, and security engineering teams, write...  ...the patterns.Engage senior leadership. Brief the...  ...operational maturity in systems that authenticate and... 
    Platform
    Senior
    Local area
    Worldwide
    Flexible hours
    Shift work

    Okta, Inc.

    Bellevue, WA
    3 days ago
  •  ...Description This Sr. AI Engineer leads the...  ...scaling of advanced AI systems and autonomous agents that transform enterprise...  ...enterprise-grade AI platforms and solutions leveraging...  ...functions. As a senior technical contributor...  ...thought leadership in LLM engineering, multi-... 
    Platform
    Senior
    Work experience placement

    Insight Global

    Bellevue, WA
    2 days ago
  • $264k - $379.5k

     ...usher in this new era, we seek AI-native thinkers across every...  ...ecosystem that powers our AI-pilled engineers and our agentic organizations...  ...are built upon.Act as an agent of clarity in a space that is...  ...workflows, and modern CI/test platform modernization efforts.Snowflake... 
    Platform
    Senior

    Snowflake

    Bellevue, WA
    8 days ago
  • $145k

     ...Agentic AI Engineer Envorso Sports · Seattle, WA (Hybrid) or Remote,...  ...Envorso Sports builds the platform that runs a...  ...mobile app, from one system instead of six disconnected...  ...and own the internal agent tooling: guardrails on...  ...and shipping AI/LLM-powered applications... 
    Platform
    Full time
    Live in
    Remote work
    Visa sponsorship

    Provn

    Seattle, WA
    a month ago
  • $152k - $241.5k

    We are seeking a Senior AI/ML Performance and Efficiency Engineer, GPU Clusters at NVIDIA to join...  ...Robotics, Autonomous vehicles, LLM’s, Videos and...  ...experience with NSight Systems and NSight ComputeExperience...  ...familiarity with cloud computing platforms (e.g., AWS, GCP, Azure)... 
    Platform
    Senior
    Full time
    Remote work

    Nvidia

    Seattle, WA
    4 days ago
  • $160k - $220k

     ...our Deep Learning Advertising Platform. Since 2015, we have...  ...will be at the forefront of AI-driven advertising solutions,...  ...Cognitiv’s real-time bidding systems and be accountable for delivering...  ...strong working relationships with engineering teammates and cross-functional... 
    Platform
    Senior
    Full time
    Work from home

    Cognitiv

    Bellevue, WA
    1 day ago
  • $152k - $241.5k

     ...looking for outstanding Senior High Performance AI Engineers to build the next...  ...of agentic AI systems for the CUDA ecosystem...  ...models, to designing agent architectures and multi...  ...accelerator platforms, and the ability to...  ...deploying with TRT-LLM, SGLang, vLLM, or Transformer... 
    Platform
    Senior
    Full time
    Remote work

    Nvidia

    Redmond, WA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior AI Engineer (LLM & Agent Systems) — Platform. Be the first to apply!