Top Software Engineer Jobs in Chicago, IL

Design, build, test, deploy, monitor, and support reliable, scalable backend services for Expedia’s content ecosystem. Collaborate with engineers and product managers on system design, APIs, data modeling, and integrations across services. Improve reliability, performance, security, observability, and operational excellence through code reviews and best practices. Contribute to AI/ML-enabled backend solutions, production operations, experimentation, and continuous technical improvement.

Build and scale backend services, APIs, and advertiser-facing features for Expedia Group’s unified advertising platform. The role involves system and API design, data modeling, deployment, operational support, performance improvement, observability, troubleshooting, and secure testing. Engineers will primarily develop backend systems with some React frontend work, collaborate across distributed teams, and contribute to scalable, high-throughput advertising technology.

Build and launch backend identity decisioning systems that validate consumer identity and satisfy KYC regulations. Collaborate with Product, Compliance, Auth, Fraud, Analytics, and engineering teams; decompose projects, write tested and extensible code, monitor system metrics, support availability and on-call operations, debug code, participate in reviews, and contribute to technical decisions and team development.

Build and operate Java-based distributed microservices supporting trade clearing, margin, settlement, reconciliation, and related financial workflows. Responsibilities include designing services, optimizing PostgreSQL, ensuring data integrity, creating tests and observability, defining service-level objectives, contributing to architecture decisions, and participating in production on-call support. The role requires full software lifecycle ownership and collaboration with nontechnical partners in a regulated clearinghouse environment.

Build and operate Java microservices supporting trade clearing, margin, settlement, reconciliation, and financial data integrity. Responsibilities include PostgreSQL optimization, distributed systems development, testing, observability, SLOs, production support, architecture documentation, and on-call ownership. The role collaborates with nontechnical partners and uses technologies including Kubernetes, Kafka, Linux, GitHub Actions, Helm, ArgoCD, and PostgreSQL.

Build and operate Java microservices supporting clearing workflows such as trade processing, margin, and settlement. Responsibilities include optimizing PostgreSQL, ensuring data integrity and reconciliation, implementing observability and service-level objectives, contributing to architecture documentation, testing, production support, and on-call operations. The role requires distributed-systems experience, strong Java skills, and collaboration with nontechnical partners.

Leads the technical direction and architecture of data product systems, including APIs, backend services, data stores, and processing systems. Builds and reviews production code, partners with product managers, data scientists, and ML engineers, and oversees system design, operations, observability, and on-call health. The role also mentors engineers, drives cross-team technical alignment, evaluates machine-learning production systems, and guides effective use of AI engineering tools.

Develop and maintain scalable, highly available software across the full SDLC. Lead design, implementation, testing, deployment, monitoring, and maintenance of backend services and major features. Contribute to architecture, performance, quality, and system scalability; resolve systemic issues; document requirements; and support customer needs. Mentor engineers, lead technical breakdowns, participate in Agile practices, and work with cloud platforms, messaging systems, machine learning, and distributed data technologies.

Leads design, development, testing, troubleshooting, and production delivery of scalable Java-based financial technology solutions. Builds resilient microservices using Java, Spring Boot, Kafka, React, AWS, and Kubernetes; manages unit, SIT, and UAT testing; supports clearing and settlement functions; and promotes secure, responsible AI-assisted engineering practices, automation, code quality, and operational stability.

Leads software engineering within an agile Corporate Technology team, designing, developing, troubleshooting, and reviewing secure enterprise applications. Builds Java and Spring Boot solutions using microservices, APIs, databases, cloud-native architecture, messaging, and modern UI frameworks. Drives automation, application resiliency, CI/CD, responsible AI-assisted development, technical evaluations, and engineering communities of practice. Coaches teams on secure AI adoption, validates AI-generated outputs, and promotes scalable engineering standards.

Leads development of a next-generation equipment and asset finance platform. Designs, builds, tests, secures, and troubleshoots scalable Java and Spring Boot applications using microservices, REST, Kafka, React, and relational databases. Provides technical direction to a global feature team, mentors engineers, reviews code, drives AI-assisted engineering practices, and contributes to architecture. Improves application stability, observability, code quality, deployment reliability, and operational support across development, staging, and production environments.

Build and deploy full-stack healthcare financial products used by millions of patients. Develop AI- and ML-powered features, integrate LLMs, enhance an AI billing assistant, and create patient payment solutions. Collaborate with product, design, and partner engineering teams to deliver production-ready software. Contribute to technical planning, coordinate complex development efforts, mentor peers, and maintain high standards for testing, code quality, efficiency, and technical debt management.

Design, implement, and maintain scalable serverless backend services and responsive Next.js front-end components. Build data scrapers and integrations, improve CI/CD and IaC, mentor junior engineers, and collaborate with product and clients to solve complex compliance problems.

Design and implement software solutions across full-stack applications, including microservices, APIs, frontend and backend systems. Diagnose production issues, improve scalability, manage risk, and collaborate with Product, Analytics, Operations, and engineering teams. Mentor junior developers, prioritize work across projects, participate in on-call rotation, and apply AI tools responsibly to enhance development workflows.

Build and scale full-stack software for employer and Employee Assistance Program products, including employer portals, patient and provider workflows, eligibility, authorization, and billing. Lead technical projects, design secure distributed systems, mentor engineers, contribute to engineering culture, and use modern technologies and AI-assisted development tools. Collaborate cross-functionally to expand access to mental healthcare.

Develop and lead full-lifecycle software projects, including architecture, object-oriented design, database modeling, coding, testing, implementation, and optimization. Lead technical teams, make architectural decisions, estimate resources and timelines, manage delivery commitments, and collaborate with stakeholders. Mentor junior engineers, establish development standards, conduct code reviews, and support scalable business solutions using modern software development, cloud, DevOps, and database technologies.

Build and ship web-based transportation management software for trucking customers. Collaborate with product, UX, and engineering teammates to understand user workflows, solve domain problems, deliver features rapidly, and maintain an effective balance between quality and velocity. The role requires proactive ownership, strong communication, frequent collaboration, and willingness to learn the trucking industry and engage with customers.

Lead backend engineering for a high-performance, data-intensive SaaS platform. Responsibilities include defining technical vision, designing scalable and highly available systems, executing technical projects, participating in architecture decisions, monitoring and optimizing services, improving CI/CD and infrastructure, conducting postmortems, mentoring engineers, documenting practices, and aligning with partner teams.

Leads architecture and hands-on development of scalable backend systems and APIs supporting real-time applications. Owns the engineering lifecycle, writes high-performance code, establishes testing and reliability practices, resolves production issues, guides technical roadmaps, collaborates cross-functionally, and mentors engineers. The role requires expertise in object-oriented backend development, distributed cloud systems, automated testing, system monitoring, and technical leadership.

Design and deliver Android system applications for Toast POS devices, including device policy enforcement, setup, firmware and app updates, background services, and fleet deployment. Lead technical design, cross-functional planning, Android and hardware upgrades, automated testing, production issue investigations, and staged rollouts. Mentor engineers and collaborate with product, hardware, QA, and software teams to build secure, reliable device-management systems.

Lead end-to-end development of reliable care-agent tooling and software services integrating contact-center platforms with backend systems. Own architecture, performance, security, production operations, and technical direction while partnering with product, care operations, QA, and engineering teams. Translate operational workflows into scalable solutions, mentor engineers, and improve tools using agent feedback, operational metrics, and AI-assisted development practices.

Lead technical vision and strategy for Affirm’s Cards backend engineering organization. Architect scalable and reliable platforms, guide cross-team initiatives, champion AI adoption and engineering excellence, influence technical roadmaps, and mentor engineers through Staff level. The role requires strong architectural expertise, organizational leadership, project management, communication, and cross-functional collaboration.

Own complex software systems and critical workflows end-to-end while ensuring reliability, performance, security, and maintainability. Lead architectural decisions, mentor engineers, manage incident response, improve system health, and communicate effectively with technical and non-technical stakeholders. The role requires extensive Ruby on Rails, AWS or equivalent cloud infrastructure, Linux production operations, frontend development, relational databases, testing, CI/CD, and observability experience.

Lead technical execution and architecture for the Loyalty product. Own roadmap, design distributed services and APIs, ensure reliability/observability, integrate with ZMP and AthenaOS, build and coach engineering teams, and drive cross-team delivery of scalable multi-tenant loyalty capabilities.

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.