Top Tech Jobs & Startup Jobs in Chicago, IL

Lead end-to-end data science projects, build supervised/unsupervised/deep learning models and AI agentic/LLM-powered applications, design experiments, feature engineering, productionize and monitor models, partner with engineering teams, and mentor junior data scientists.

Lead design, development, and deployment of high-performance native and Flutter mobile apps. Define mobile architecture, mentor engineers, optimize performance and integrations, ensure code quality and CI/CD, collaborate with product and engineering leaders, and drive technical strategy across web and mobile platforms.

Lead design, development, and deployment of scalable, reliable API-driven services and integrations. Mentor engineers, collaborate with product teams, resolve performance and scalability issues, promote best practices (TDD, trunk-based development), and contribute to organizational technical strategy and hiring.

Lead iOS technical architecture and standards, own CI/CD and release processes, improve observability and security, integrate push/identity/deep links, mentor distributed iOS team, collaborate with backend/product, and support incident response and hotfixes.

Lead technical architecture and hands-on implementation of IAA's Azure-based data platform. Design and build scalable, production-grade data pipelines, semantic models, and data products for BI, analytics, forecasting, and ML. Define standards, mentor engineers, resolve performance and scalability challenges, and drive platform strategy across Fabric, Synapse, Power BI, and related Azure services.

Lead design and delivery of complex full‑stack features using .NET and modern web architectures. Mentor junior engineers, review code, drive performance, reliability, and maintainability, collaborate with product/QA/DevOps, and reduce technical debt while owning technical solutions.

Design, build, and operate scalable, fault-tolerant microservices and APIs across an e-commerce platform. Own end-to-end delivery, lead technical design, reduce technical debt, troubleshoot production issues, and champion testing, CI/CD, security, and observability while leveraging AI-assisted developer tools.

Contribute to a microservices-based e-commerce platform: design, build, test, and operate back-end services and front-end React components. Own features from requirements through deployment, use CI/CD and containerization, support production incidents, and leverage AI-assisted developer tools to accelerate work.

Provide hands-on legal counsel to senior management and field teams across commercial, regulatory, M&A and dispute matters; lead negotiations, manage litigation and legal settlements, deliver in-house training, and help develop the Legal team while ensuring compliance across multinational operations.

Lead and mentor cross-functional e-commerce engineering teams to deliver resilient, observable, high-quality software. Hire and retain engineers and QA, optimize lean value streams, partner with product and staff engineers on design and delivery, and continuously improve workflows, tools, and processes to enable daily delivery of business value.