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.

Build full‑stack vertical slices for a mission-critical legacy modernization using agentic AI tools. Lead frontend UX with React/TypeScript, maintain component library and accessibility, implement Node APIs and Prisma/Postgres schemas, deploy AWS infrastructure, and ensure quality via TDD, CI, and Playwright while shipping small, continuous releases.

Build full-stack vertical slices for a mission-critical government system with a frontend focus: React/TypeScript UIs, Node services, Prisma schemas, PostgreSQL, and AWS. Use agentic AI tools, lead design-system/accessibility, apply TDD and Playwright E2E testing, maintain CI/CD, and iterate continuously with stakeholder review.

Design, build, and maintain ingestion and transformation pipelines for a knowledge-graph analytics platform. Profile and prepare structured and semi-structured source data, ensure data lineage and traceability, implement transformation logic for graph loading, collaborate with data scientists on graph modeling and entity resolution, improve pipeline reliability, and document ingestion patterns using version control and issue tracking.

Lead Infrastructure/DevOps for a DoD IL4 web modernization. Build AWS GovCloud IaC with TypeScript/CDK, enforce NIST compliance, architect high-performance CI/CD, implement Zero Trust, use agentic AI to automate infrastructure, and support full-stack debugging and platform reliability.

Build and manage AWS GovCloud infrastructure with AWS CDK (TypeScript), enforce NIST compliance, design high-performance GitHub Actions CI/CD, automate security authorization evidence, implement Zero Trust (CAC/ICAM, mTLS), use agentic AI to generate infrastructure, own merged code, debug full stack issues, and support application teams while meeting DoD IL4 requirements.

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.

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.