Top Software Engineer Jobs in Chicago, IL

Develop and scale backend streaming and data infrastructure using Kafka, Flink, AWS, Kubernetes, and related technologies. Break down projects, deliver tested software, collaborate with product and engineering teams, monitor system availability, participate in on-call support, debug code, conduct code reviews, and contribute to team development.

Lead backend engineer responsible for system-level design, implementation, and ownership of low-latency, high-reliability trading and market-data backend systems. Translate business needs into technical designs, write production-ready code, design schemas and integrations, lead reviews, reduce technical debt, and support production while establishing engineering standards and observability.

Lead cross-functional teams to design, build, and deliver high-quality web, mobile, and embedded software. Provide technical direction, mentor developers, promote best practices (TDD, Agile), communicate with clients, and contribute to company technical outreach. Balance hands-on coding with architecture, team coaching, and client-facing responsibilities.

The Senior Software Engineer will design and build cloud-native applications, lead technical initiatives, and mentor junior developers while collaborating with the product team.

Develop and scale cloud-based software platforms for advertising measurement, attribution, optimization, and privacy-preserving data collaboration. Build microservices, APIs, reporting tools, and real-time or batch processing solutions using Go and cloud-native technologies. Implement automated testing, monitoring, CI/CD, infrastructure automation, and scalable data infrastructure. Collaborate with product, architecture, SRE, QA, compliance, and other cross-functional stakeholders while troubleshooting issues and contributing to technical decisions.

Build, optimize, and maintain software systems using AI while collaborating across disciplines on healthcare technology. Develop distributed, event-driven systems, learn new languages and frameworks, and protect user privacy through data security and HIPAA-compliant practices. The role works with AWS, Kubernetes, and large-scale medical datasets in a fast-paced, mission-driven environment.

Leads technical strategy, architecture, operational excellence, mentorship, and multi-team software delivery. Designs maintainable distributed systems using microservices, improves monitoring and operational maturity, drives innovation, and collaborates with stakeholders across departments. Requires 9+ years of enterprise software development experience, public-cloud expertise, strong leadership, communication, analytical, documentation, and problem-solving skills.

Leads the design and development of full-stack systems supporting diagnostics and genomic data processing. Responsibilities include architecting microservices, scaling bioinformatics workflows, developing AI-assisted applications, optimizing PostgreSQL and Redis, managing GCP infrastructure and CI/CD, and integrating APIs and agentic workflows. The role also involves technical leadership, mentoring, cross-team collaboration, architectural decision-making, and bridging software engineering with computational biology teams.

Own end-to-end technical initiatives for iManage’s core cloud platform, including requirements, architecture, implementation, and delivery. Design scalable distributed systems, microservices, and event-driven architectures using modern backend technologies and Azure. Evaluate AI technologies and practical workloads, address reliability and security, collaborate cross-functionally, and mentor engineers while influencing technical direction across teams.

Develop and test high-performance C++ applications for trading platforms. Collaborate with traders and experienced engineers to translate requirements into efficient solutions, while monitoring, profiling, and troubleshooting systems for reliability and stability. The role provides mentorship and exposure to the complete trading-system development lifecycle, including production support, performance tuning, multithreaded programming, and real-time systems.

Develop and maintain options valuation and risk management systems. Responsibilities include full-cycle software development, requirements gathering, solution design, coding, code reviews, troubleshooting, performance improvements, documentation, and collaboration with traders, risk managers, quantitative analysts, and support teams. The role requires object-oriented programming, data analysis tools, and strong knowledge of mathematics, statistics, probability, stochastic calculus, numerical methods, and linear algebra.

Design, build, and maintain blockchain and payments infrastructure; develop scalable microservices and secure RESTful APIs to transfer value across blockchain and banking protocols; integrate with banks and fintech; own system design, testing, deployment, and troubleshooting; ensure reliability, code quality, and strong test coverage while collaborating with product and engineering teams.

Supports the reliability and operational excellence of health benefits systems involving HSA administration, banking integrations, compliance, and money movement. Responsibilities include independently resolving escalations, monitoring dashboards and logs, triaging incidents, executing data corrections, maintaining runbooks, analyzing recurring support issues, and collaborating with engineering, product, treasury, and operations teams. The role also mentors teammates, contributes to postmortems, improves troubleshooting processes, and uses AI tools for prototyping and debugging.

Leads software engineering across architecture, design, prototyping, and delivery for pharmacy technology platforms. Provides mentorship, establishes development frameworks and best practices, collaborates with business and IT stakeholders, leverages approved AI developer tools, supports Agile/Scrum execution, improves performance and security, and leads production issue triage and root-cause analysis.

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.

Develop and maintain production-grade market data feed handlers and quant-ready data archives supporting research and trading. Work with C++ and Python across proprietary equities protocols, order book data, normalization, gap detection, reconciliation, and backfills. Collaborate with quantitative researchers, support expansion into global markets, improve data systems, and mentor teammates. The role requires strong understanding of market microstructure, venue-specific behavior, and maintainable engineering practices.

Leads development of secure, scalable software solutions using Java, Spring Boot, React.js, and cloud-native technologies. Designs systems, writes and reviews production code, troubleshoots issues, improves operational stability, and guides agile SDLC practices. Promotes responsible AI-assisted engineering, including validation for security, correctness, and performance. Collaborates with vendors and internal teams to evaluate architectures and technology solutions within financial services environments.

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Architect and build a high-performance trading platform for active traders. Develop responsive web interfaces integrating real-time market data, low-latency execution workflows, and advanced trading tools. Collaborate with cross-functional engineering teams on large-scale initiatives, emphasizing scalability, performance, API quality, maintainability, developer experience, and end-user usability.

Develop and maintain native iOS applications using Swift and SwiftUI for DraftKings’ financial platform. Responsibilities include building user-facing features, integrating APIs, managing data and state, optimizing performance, monitoring crash analytics, participating in code reviews and testing, and troubleshooting reliability issues. The role collaborates with product, design, analytics, and engineering teams to deliver scalable, compliant mobile experiences.

Develop and maintain backend systems, automation, databases, data pipelines, dashboards, and visualization tools supporting finance, trading, and operations teams. Improve processing efficiency, system performance, and data accessibility across a global business intelligence environment. Collaborate with BI developers and business stakeholders while working with large datasets. The role requires Python, SQL, cloud, containerization, CI/CD, and agentic coding tool experience.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Build and maintain Ruby-based services and customer-facing trading applications within a distributed architecture. Design reliable, low-latency systems; troubleshoot production issues; write comprehensive tests; contribute to peer reviews; perform light infrastructure work; and translate technical requirements into production-quality code. Engineers work across Ruby, Java, and JavaScript, collaborate on greenfield and existing systems, and provide guidance to junior teammates while developing ownership of the platform.

Design, build, and optimize nanosecond-level trading systems in C++; co-design the hot path with FPGA engineers; integrate machine learning signals into production trading; own architecture through live production while keeping code simple, clear, and maintainable; collaborate closely with researchers and hardware teams.

Develop, test, document, and debug software for telecommunications and IP networking equipment in cybersecurity environments. Work across infrastructure, applications, full-stack development, embedded communication systems, security analysis, system testing, and lab automation. Collaborate with product development teams to solve complex federal networking and communications challenges. Travel to customer sites as needed and obtain a Top Secret clearance for continued employment.