Top Senior Platform Engineer Jobs in Chicago, IL

As a Senior Software Engineer, you will design best practices for AI Agents, develop standards, collaborate on product opportunities, and stay updated on emerging Agent techniques.

Design, build, and operate enterprise-scale multi-cloud infrastructure (Azure primary, GCP, AWS exposure). Own landing zones, Terraform modules, production AKS/GKE Kubernetes, Vault secrets, hybrid networking, CI/CD pipelines, monitoring, DR, and automation (Ansible, Python/Bash). Mentor engineers, document runbooks, and collaborate with security, application teams, and leadership to ensure secure, reliable, cost-optimized cloud platforms.

Own and evolve the Core Platform architecture: design and operate scalable APIs, event-driven distributed services, SDKs and AI-integrated workflows. Ensure reliability, observability, performance, and security; provide technical leadership, mentor engineers, and drive best practices.

Responsible for the full software development lifecycle, collaborating with teams to design, develop, and maintain applications while mentoring others and ensuring engineering standards.

Design, build, and maintain full-stack web and API solutions using React, TypeScript, Node.js, and GraphQL. Lead architecture and DevOps efforts, improve CI/CD and observability, mentor engineers, collaborate with product and design, and ensure security, performance, scalability, and reliability. Troubleshoot issues, create technical documentation and diagrams, and continuously improve developer experience and engineering standards.

Lead architecture, scalability, and reliability for the Integrations Platform across SDKs, agents, job pipelines, and developer tooling. Drive platform roadmap, observability, workflow orchestration, AI-enabled integration authoring, and cross-functional initiatives while mentoring engineers and collaborating with product and customer teams.

Build and scale backend services for identity, access control, secure content sharing, and data access. Contribute to Dgraph internals, collaborate with platform and infrastructure teams, drive architecture and permissions models, and write high-quality Go and Python code focused on reliability, security, and performance.

Design, build, and maintain backend services for identity, access control, secure content sharing, and data access on the data platform. Contribute to Dgraph internals and Data Studio tooling, collaborate with platform and infra teams, drive permissions and secure-sharing architecture, and write well-tested Go and Python code focusing on reliability, security, and performance.

Build and operate cloud-native platform infrastructure enabling AI agents in healthcare: safe CI/CD for agent capabilities, agent-focused observability, scalable infrastructure, automation, runbooks, and incident response.

Lead technical strategy and architecture for Coinbase's Blockchain Platform, overseeing nodes, indexers, wallets, and asset lifecycle. Drive cross-team platform rearchitectures, enforce security and reliability standards, champion AI-driven automation, use observability to improve reliability, and represent the platform to executives to secure alignment and resources for large-scale blockchain infrastructure initiatives.

As a Senior AI Platform Engineer, you will architect AI-driven systems, develop CI/CD pipelines, and optimize infrastructure for AI workflows.

Lead design and delivery of a reliability platform for production systems. Own quarterly goals, guide engineers through ambiguity, collaborate with PM/design/analytics, monitor and operate services (on-call), set quality and code standards, and mentor teammates. Integrate AI/LLM tooling to improve automation, debugging, and service health.

Own design, automation, and lifecycle of Kubernetes platform for global network infrastructure. Build production-quality tooling for cluster provisioning, upgrades, GitOps delivery, observability, and recovery. Provide production support and incident response for network services on the platform, drive root-cause analysis, and establish platform standards and runbooks.

Build and maintain cloud infrastructure and application platform to enable rapid deployments, troubleshoot incidents, design self-healing systems, join on-call rotation, and support product and data engineers with observability and networking expertise.

Build, operate, and extend data platform and application-layer services enabling secure, self-service data applications at scale. Implement provisioning, CI/CD, access control, integrations, observability, automation, and incident response while contributing to semantic layer and AI-ready tooling roadmaps.

Founding member of the Platform team owning infrastructure, security, CI/CD, and reliability. Design and operate AWS account architecture and services (ECS Fargate, RDS/Aurora, ElastiCache, SQS, ALB), author Terraform IaC, harden IAM and S3, enable AWS security tooling, maintain SOC 2 readiness, improve GitHub Actions pipelines, build PR and local dev environments, integrate observability, and lead incident reviews and runbook creation.

Lead end-to-end QA for an agentic AI platform: plan tests, write manual and automated E2E cases, run Playwright clusters, test LLM/agent behaviors, integrate tests into CI/CD, triage defects, and drive regression and release sign-off.

Build the core AI platform and high-performance Rust backend powering an AI-native trading copilot. Implement streaming responses, low-latency tool execution, caching, orchestration of models and tools, secure APIs, auditing/tracing, and safe, auditable trading action infrastructure. Partner with product and frontend to enable AI-native UX and translate trading domain requirements into resilient platform primitives.

Design, build, and maintain Salesforce applications and integrations to support institutional sales, billing, and compliance. Own end-to-end feature delivery, collaborate with product and business stakeholders, ensure engineering quality through reviews and documentation, mentor junior engineers, and support operations via on-call rotations and incident triage.

Design and build tooling, workflows, and guidance to make GitLab easier to deploy, validate, and operate across cloud-native, self-managed, and ephemeral environments. Shape deployment architecture, topology, scaling principles, and platform contracts while collaborating with application, infrastructure, and delivery teams.

Design, build, and deploy scalable Generative AI solutions (LLMs, RAG, agentic AI) across cloud platforms. Develop pipelines using LangChain/LangGraph, ensure secure, production-grade deployments with containerization, orchestration, IaC, observability, and CI/CD. Collaborate cross-functionally and apply secure coding and governance practices in regulated environments.

As a Senior Platform Engineer at Socket, you'll enhance infrastructure, improve performance, debug production issues, and build observability systems while participating in an on-call rotation.

Build and operate developer experience and platform foundations across ephemeral environments, CI/CD, AWS infrastructure, infrastructure-as-code, feature flags, security scanning, observability, and AI-assisted development tooling. Create golden paths, improve build and test speed, consolidate pipelines, support multi-tenant HIPAA requirements, and carry pager responsibility for infrastructure used by engineering teams.

As a Senior Software Engineer at FleetWorks, you will lead customer integrations, build workflows, develop platform components, and provide field insights to enhance software solutions in freight booking.

Lead and grow ReflexAI’s platform engineering: design and automate multi-cloud (GCP/AWS) infrastructure, build developer tooling and CI/CD golden paths, improve observability and on-call ergonomics with Datadog, and strengthen cloud security, secrets management, and compliance to support production-grade AI workloads.