Top Tech Jobs & Startup Jobs in Chicago, IL

Modernize a legacy, mission-critical system by implementing backend domain services in TypeScript/Node.js, extracting business rules from legacy Java/PL/SQL, ensuring financial-grade correctness and auditability, delivering full-stack vertical slices (React to AWS CDK), using AI-agent development tools, and maintaining CI/CD with automated testing.

Replace a legacy platform with a modern web ecosystem using AI-assisted development. Decompose business problems for AI agents, implement backend domain services in TypeScript/Node.js, extract logic from Java/PL/SQL, ensure financial-grade auditability, deliver full-stack vertical slices (React, IaC via AWS CDK), enforce CI/CD and automated testing (Vitest/Playwright), and collaborate with stakeholders on beta environments.

Lead modernization of a legacy Oracle system to PostgreSQL: design migration pipelines, implement automated reconciliation and CDC workflows, interpret PL/SQL business logic, build full-stack features (React UIs, Node APIs), ensure financial-grade data integrity, and vet agent-generated code for federal compliance.

Lead modernization of a legacy Oracle system into a single-schema PostgreSQL platform. Design repeatable migration pipelines, implement automated reconciliation and data-quality checks, extract business rules from PL/SQL, build CDC workflows and analytics stores, and develop full-stack features (TypeScript/Node.js/React) while overseeing AI-agent-generated code and ensuring federal financial audit-grade integrity.

Lead development and deployment of ML models and analytics for aircraft predictive maintenance. Build robust ETL pipelines, perform EDA and statistical analysis, collaborate with domain experts, integrate models into applications/APIs, and monitor model performance in production.