Top Engineering Jobs in Chicago, IL

Design, develop, deploy, and maintain high-volume backend systems supporting customer funding, trading, and back-office operations. Lead development practices through code reviews, mentoring, architecture guidance, and quality ownership. Build reliable, observable software using Python and TypeScript, collaborate with finance and trading teams, improve operational efficiency, document workflows, and oversee projects from design through iteration.

Lead mobile architecture and develop scalable Flutter applications for iOS and Android. Own features through testing, release, monitoring, and debugging; guide technical roadmaps; optimize performance and reliability; improve observability and crash analytics; collaborate with Product and Design; mentor engineers; and promote engineering excellence.

Own end-to-end quality for a web trading product squad by defining test strategies, building Playwright automation in TypeScript or JavaScript, integrating tests into CI/CD, and improving test reliability. Partner with engineers and product managers on testability, architecture, and acceptance criteria. Perform exploratory testing, apply AI-assisted QA tools, maintain shared frameworks, and mentor junior QA team members.

Architects and optimizes high-volume database platforms supporting trading applications. Responsibilities include MySQL schema design, SQL and query optimization, migrations, scalability, reliability, observability, production issue resolution, developer tooling, and database architecture. The role partners with engineering and platform teams, leads technical initiatives, establishes database best practices, mentors engineers, and uses Google Cloud services to improve performance, resilience, and operational efficiency.

The Staff Software Engineer will lead the architecture of the FCM platform, ensuring financial correctness and system integrity, while modernizing systems and improving operational tooling.

Design, evolve, and optimize Scala-based, low-latency trading services. Lead architecture for scalability and performance, tune JVM/Akka systems, enhance observability, ensure security and regulatory compliance, and mentor junior engineers while collaborating cross-functionally to support 24x7 high-volume trading.

Lead the SRE function for NinjaTrader’s trading platform, ensuring availability, scalability, performance, and 99.95% uptime. Responsibilities include managing Kubernetes services, resolving production incidents, participating in a 12x7 on-call rotation, automating deployments and operational tasks, designing monitoring and alerting systems, establishing SLIs/SLOs, using Terraform for infrastructure automation, and implementing cloud security and compliance practices. The role also mentors engineers and collaborates cross-functionally on reliable platform delivery.

Serve as the senior technical lead for partner integrations with NinjaTrader APIs. Troubleshoot and resolve complex API and real-time data issues, collaborate with partner engineering and Technical Account Managers, conduct code reviews, build diagnostic tools, set API support quality standards, mentor junior engineers, and translate partner feedback into roadmap improvements.

Design, build, and maintain Scala-based backend services for evaluation, risk, and trading workloads (real-time auto-liquidation, account state, post-trade). Own end-to-end features, evolve actor-based systems (Akka/Pekko), design Postgres schemas (JSONB), diagnose production incidents, drive code quality, collaborate with cross-functional teams, mentor juniors, and contribute to architecture and modernization decisions.