Top Tech Jobs & Startup Jobs in Chicago, IL

Build and maintain scalable React-based web applications using TypeScript and JavaScript. Create reusable UI components, integrate APIs, manage client-side state, optimize performance and accessibility, and collaborate with UX, backend, and product teams in a large engineering environment.

Design, develop, and maintain scalable full-stack applications for intermediary clearing and custody platforms. Collaborate with product, architecture, and engineering teams to modernize applications, implement cloud migrations, build APIs, automate workflows, and improve CI/CD, observability, security, and deployment practices in an Agile environment.

Build and maintain polyglot full-stack applications, architect scalable microservices, implement agentic AI/LLM workflows, develop modern frontends, manage AWS cloud infrastructure, and own the full software lifecycle including deployment and production monitoring.

Lead data transformation and modernization efforts to move data from legacy data warehouse and SQL Server reporting into an Enterprise Financial Data Lake. Gather and document business and technical requirements, perform data analysis, participate in design with squads and developers, translate technical needs for non-technical stakeholders, and support CI/CD automation. Work in an Agile environment to improve systems and productivity.

Build modern, responsive web applications using Angular and TypeScript. Implement pixel-perfect UIs from Figma/wireframes, manage state with NgRx/RxJS, integrate REST APIs, optimize performance and cross-browser compatibility, write unit tests (Jasmine/Karma), and participate in code reviews.

Design and build scalable Python/FastAPI backend services integrating generative AI, LLMs, vector databases and RAG. Develop REST APIs, agent-based workflows, async/event-driven processing, and cloud-native deployments (Docker/Kubernetes). Implement security, observability, CI/CD, and production support while collaborating with cross-functional teams.

Lead QA team to define and execute QA strategies, build and maintain mobile automation frameworks, integrate testing into CI/CD, set quality metrics, manage defects, review test plans, and report progress to stakeholders to ensure high-quality mobile applications.

Develop and maintain automated test suites and perform manual testing to assess product quality. Train squads on test management, collaborate to improve test coverage and application health, and promote quality practices and automation within Agile teams.

Lead development of a unified payments platform covering pay-ins, payouts, merchant acquiring, settlement, routing, and reconciliation. Produce PRDs, user stories, API specifications, process maps, and transaction journeys. Partner with engineering, QA, UI/UX, and data teams to deliver scalable payment orchestration, manage backlog and releases, support UAT and operationalization, and integrate AI-driven product enhancements.

Design and implement scalable, secure, high-performance system architectures. Lead architectural reviews, define technical requirements with stakeholders, recommend technologies, mentor teams, mitigate technical risks, and drive best practices and innovation.