Top Staff Engineer Jobs in Chicago, IL

Lead the technical vision, architecture, and delivery of Toast’s pricing engine across multiple teams. Design and operate highly available distributed systems, APIs, databases, and event-driven services at scale. Serve as the pricing domain expert, improve correctness and performance, lead incident response and reliability initiatives, mentor engineers, establish operational excellence, and align technical priorities with Product and engineering leadership.

Lead backend engineering strategy for Affirm’s search and recommendation platform. Design and launch highly available distributed systems, guide technical architecture and execution, improve team operations and reliability, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on search, recommendations, consumer shopping experiences, monetization, and scalable platform foundations.

Lead design and delivery of scalable, resilient distributed systems. Act as technical authority across teams, mentor engineers, drive architecture and CI/CD best practices, troubleshoot production issues, optimize performance, and enhance observability while writing production-grade Java.

Lead backend engineering strategy for Affirm’s international Identity team. Design and launch highly available distributed systems supporting KYC, user lifecycle management, and identity decisioning. Drive technical planning, cross-functional collaboration, operational excellence, monitoring, testing, and on-call readiness. Establish engineering quality standards, influence architecture, mentor team members, and deliver scalable systems using Python or Kotlin, AWS, MySQL, Spark, and Kubernetes.

Lead architecture and full-stack development for scalable applications, including interactive dashboards, backend microservices, APIs, data integrations, AI-enabled features, MFT orchestration, and cloud-native DevOps infrastructure. Establish monitoring and operational standards, resolve complex production issues, guide technical strategy, mentor engineers, and collaborate with product leadership on technical roadmaps.

Leads software engineering for administrative and reporting tools, overseeing web and service integration architecture, development practices, scalability, testing, and production transitions. Designs full-stack solutions using Java EE and Angular, tunes SQL performance, manages feature delivery, and collaborates with UX/UI, product, architecture, and development teams. Coaches and trains full-stack developers while communicating technical solutions to stakeholders.

Design, deliver, and operate business-critical distributed systems for Signify Health’s value-based care technology platform. The role requires full-stack development, polyglot programming, scalable distributed-systems expertise, cloud engineering, SQL and relational database knowledge, and strong communication. Preferred experience includes event-driven architectures, AI-assisted development tools, Kafka, APIs, containers, Kubernetes, infrastructure as code, monitoring, CI/CD, and agile methods. Quarterly or as-needed travel is required.

Leads development of enterprise administrative and reporting tools, including full-stack web applications and service integrations. Defines scalable architecture, manages development priorities, creates technical specifications and test plans, and addresses performance issues. Collaborates with UX/UI, product, and engineering teams while overseeing DevOps transitions. Leads, coaches, and trains full-stack developers.

Leads technical strategy, architecture, and implementation for cross-border money movement and digital asset payment systems. Designs scalable distributed platforms, resolves complex technical challenges, establishes engineering standards, reviews solutions across teams, and mentors engineers. Partners with product, architecture, operations, and engineering teams to deliver secure, resilient, compliant payment capabilities. Requires extensive Java and cloud experience, payment-platform expertise, event-driven architecture knowledge, and strong technical leadership.

Provides hands-on technical leadership for mobile and terminal payment experiences. Defines architecture and long-term strategy across mobile apps, SDKs, payment terminals, and distributed backend systems. Leads complex reliability, performance, security, and compatibility initiatives; establishes APIs and integration patterns; aligns Product, Design, Legal, and external partners; mentors engineers; and advances observability, testing, and operational excellence.

Leads technical vision, architecture, modernization, and engineering quality for scalable payment platforms. Designs cloud, data, microservice, event-driven, and multi-tenant systems; establishes API and coding standards; reviews critical code; mentors engineers; partners with leadership; and drives cross-domain technical initiatives.

Staff Software Engineer responsible for architecting enterprise platform services, REST APIs, microservices, event-driven systems, and cloud-native solutions on Azure or AWS. The role leads integration of agentic AI, LLMs, and MCP capabilities; shapes technical strategy; improves developer experience; mentors senior engineers; and establishes architecture standards, documentation, and responsible AI development practices across engineering teams.

Lead technical strategy and execution for foundational Trust and Safety systems supporting consumer risk and credit reporting. Design and operate highly available backend systems, improve reliability and monitoring, establish engineering standards, guide complex cross-functional initiatives, and mentor engineers. The role involves ownership of system architecture, technical planning, operational readiness, code quality, and team development.

Leads end-to-end software development for Legal and Anti-Financial Crime technology, spanning React, Python or Node.js, data platforms, cloud infrastructure, and AI-enabled workflows. Designs secure, auditable systems; builds APIs, integrations, data pipelines, testing frameworks, and LLM-powered agents with human oversight. Owns architecture, production support, root-cause resolution, DevSecOps practices, and technical standards while mentoring engineers and partnering with legal, compliance, security, privacy, and product stakeholders.

Architect and build a high-performance trading platform for active traders. Develop responsive web interfaces integrating real-time market data, low-latency execution workflows, and advanced trading tools. Collaborate with cross-functional engineering teams on large-scale initiatives, emphasizing scalability, performance, API quality, maintainability, developer experience, and end-user usability.

Lead the technical vision and architectural evolution of Huntress’s Core Platform. Build complex Ruby on Rails features, solve scaling challenges, manage cross-team dependencies, drive architectural decisions, and oversee system lifecycle and technical risk. Mentor engineers, establish engineering excellence, collaborate with managers and product leaders, and help teams adopt AI coding tools responsibly.

Provides technical leadership across teams by setting direction for complex systems, leading architecture and design, resolving ambiguous high-impact problems, and improving scalability, reliability, security, observability, developer experience, and engineering effectiveness. The role partners with product and engineering leaders, contributes hands-on to critical projects, mentors engineers, and influences outcomes without direct management authority.

Design and implement scalable, secure, high-performance software systems and public-facing APIs. Lead system design, apply agentic coding workflows, collaborate with Product and Data Science, mentor engineers, and own initiatives improving efficiency, performance, and customer satisfaction. The role requires extensive experience with highly available distributed systems, API versioning and rate limiting, modern backend and frontend technologies, AWS, and Domain-Driven Design.

Provides technical leadership across teams, leads complex engineering initiatives, designs scalable architectures, translates ambiguous requirements into solutions, and contributes hands-on to production systems. Responsibilities include code and design reviews, mentorship, improving reliability and observability, influencing engineering standards, and partnering with product, design, operations, and business stakeholders. The role also supports platform modernization, technical roadmaps, and cost-aware engineering practices.

Designs and supports hybrid cloud networking infrastructure across Azure environments, including hub-and-spoke, Virtual WAN, VPN, ExpressRoute, routing, and DNS. Leads infrastructure automation, Infrastructure as Code, CI/CD, observability, governance, and security initiatives. Troubleshoots complex infrastructure issues, develops architecture standards, documents solutions, mentors engineers, conducts code reviews, and partners with technical and business stakeholders. Participates in on-call rotations and occasional after-hours deployments.

Own and evolve enterprise CI/CD release pipelines, with emphasis on continuous delivery, progressive rollouts, automated health checks, rollback, and multi-service releases. Lead Terraform and multi-cloud IaC architecture across AWS, Azure, and GCP, including reusable modules, state management, governance, security, compliance, and cost controls. Drive organization-wide IaC adoption, monitor deployments and infrastructure, respond to incidents, and mentor engineering teams.

Lead the technical direction and architecture of the Foundations platform team, owning authentication, authorization, SSO, secrets management, tenancy, and core platform services. Design APIs, drive services through launch, make technical decisions, establish engineering standards, and mentor engineers without formal management authority. Partner with engineering and product leaders to align execution with priorities.

Leads and contributes to the design, development, and delivery of scalable Java and Spring Boot software solutions. Designs microservices and APIs, supports cloud initiatives, creates proofs of concept, optimizes performance, conducts code reviews, resolves complex issues, and provides root-cause analysis. Collaborates with architects, business leaders, and engineering teams while mentoring junior developers and promoting technical best practices, quality, and innovation.

Lead the architecture and operation of Horizon3’s developer experience platform, including local development, CI/CD, build systems, container images, artifact promotion, release workflows, security gates, and delivery observability. Build reusable tooling and paved paths, establish secure AI-assisted development practices, improve reproducibility and supply-chain security, and mentor engineers. Partner across Platform, Security, QA, and application teams to drive adoption, reliability, delivery speed, and continuous improvement.

Architects and develops embedded firmware and core software for automotive real-time ECUs, including BSP drivers, AUTOSAR MCAL integration, RTOS, bootloaders, cybersecurity, and functional safety features. Leads technical development, supplier integration, debugging, requirements documentation, configuration management, and workflow automation. Requires strong experience with C, assembly, microcontrollers, memory systems, CAN protocols, firmware debugging, and automotive software standards.