Senior Lead Software Engineer - LLM Ops Platform Reliability

JPMorgan Chase & Co.; Glasgow; On-site; GBP 90,000 - 120,000; Full time

Job summary

JPMorgan Chase & Co. in Glasgow seeks a Senior Lead Software Engineer to design and operate large language model serving infrastructure at scale.

You will own reliability, performance, and cost-efficiency across production AI platforms, engaging with cloud and Kubernetes deployments, observability, and secure software delivery. You will lead reliability engineering for LLM endpoints, participate in on-call rotations, and drive automation to improve stability and developer experience.

Qualifications

• Production-grade software development and operations experience.
• Experience building AI infrastructure and model hosting in production.
• Strong Python and automation skills.
• Proficiency with cloud platforms and IaC tooling.
• Knowledge of SRE practices and incident response.

Responsibilities

• Design, develop, troubleshoot, and deliver secure, high-quality production software and services for AI infrastructure.
• Build backend services and APIs that enable reliable operation of AI infrastructure in production environments.
• Operate and scale large language model serving infrastructure, including model hosting, request routing, batch processing, and cache optimization.
• Deploy, host, and lifecycle-manage models on cloud-based and on-prem GPU clusters using IaC and CD pipelines.
• Implement observability with dashboards and alerting for LLM and GPU workloads.
• Tune capacity, autoscaling, and cost efficiency for LLM inference workloads.

Skills

Python

Cloud infrastructure

Kubernetes

Site reliability engineering

Observability

Infrastructure as code

Performance tuning

Incident response

Tools

Kubernetes

Python

Docker

Terraform

KServe

Ray Serve

Triton Inference Server

Job description

Help shape how AI systems run reliably in production at scale. In this role, you’ll build and operate large language model serving infrastructure, bringing strong engineering fundamentals and site reliability practices to cutting-edge AI platforms. You’ll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you’ll find meaningful impact and growth here.

As a Senior Lead Software Engineer at JPMorganChase within the AI and Machine Learning Platform team, you will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale, with deep instrumentation and strong operational rigor. You will partner across engineering to deliver secure software, improve stability, and lead incident response and continuous improvement.

Job responsibilities

• Design, develop, troubleshoot, and deliver secure, high-quality production software and services for AI infrastructure
• Build backend services and APIs that enable reliable operation of AI infrastructure in production environments
• Operate and scale large language model serving infrastructure, including model hosting, request routing, continuous batching, and cache optimization
• Deploy, host, and lifecycle-manage open-source and proprietary large language models on cloud-based container orchestration platforms and on-premises GPU clusters using reproducible infrastructure as code and continuous delivery pipelines
• Implement observability across logs, metrics, and traces with dashboards and actionable alerting for large language model and GPU workloads
• Tune GPU and accelerator capacity, autoscaling, and cost efficiency for large language model inference workloads using performance optimization techniques such as quantization, parallelism, and speculative decoding
• Lead reliability engineering for large language model endpoints through capacity planning, load and soak testing, safe rollouts, failover, and incident response for outages and model-quality regressions
• Participate in on-call rotations, lead incident triage and mitigation, and produce clear post-incident root-cause analyses and follow-up actions
• Identify recurring operational issues and automate remediation to improve platform stability and developer experience
• Build and maintain multi-agent systems with strong orchestration, including planning, coordination, tool-calling, state and memory management, and workflow control where appropriate
• Drives team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective patterns across the team.

Required qualifications, capabilities, and skills

• Hands-on experience with system design, application development, testing, and operational stability in production environments
• Advanced proficiency in Python for building production-grade services and tooling
• Proficiency with automation and continuous delivery methods
• Hands-on experience with cloud infrastructure platforms and infrastructure-as-code tooling for delivery and lifecycle management
• Strong understanding of site reliability engineering practices, including incident management, root-cause analysis, runbooks, and reliability patterns
• Practical knowledge of observability and instrumentation across metrics, logs, and traces
• Hands-on experience with Kubernetes and container-based orchestration platforms, including managed cloud variants
• Experience hosting and serving large language models on cloud-based infrastructure and local GPU environments
• Knowledge of large language model reliability and risk considerations, including latency and throughput trade-offs, model versioning, prompt and response logging, and safe rollout patterns
• Hands-on experience using enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security
• Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; ability to guide peers on safe and effective usage within team practices

Preferred qualifications, capabilities, and skills

• Experience operating large language model inference servers such as vLLM and llm-d (or directly equivalent model serving stacks) in production
• Experience developing generative AI applications, AI agents, vector search, and retrieval-augmented generation patterns
• Experience building AI agents using orchestration frameworks such as LangChain, LangGraph, CrewAI, or similar platforms
• Experience operating or integrating model serving platforms such as KServe, Ray Serve, or NVIDIA Triton Inference Server alongside other large language model serving stacks
• Familiarity with Amazon SageMaker JumpStart, SageMaker Endpoints, and Amazon Bedrock for managed model hosting
• Experience with online large language model quality monitoring, including hallucination detection, toxicity filtering, and drift detection using open telemetry conventions
• Contributions to open-source large language model serving or inference projects, (vLLM, llm-d, Ray, KServe, Triton)