Top Software Engineer Jobs in Chicago, IL

Develop, test, and maintain scalable backend RESTful APIs and microservices using Java and Spring Boot on cloud platforms. Define API contracts/OpenAPI specs, implement OAuth2-based integrations, write automated tests, support CI/CD and deployments, troubleshoot production issues, participate in code reviews, and maintain technical and operational documentation.

Designs and delivers secure, scalable full-stack Java solutions for commercial and investment banking use cases. Responsibilities include maintaining master data models, building ingestion and distribution pipelines, developing APIs, creating CI/CD and ML deployment pipelines, implementing AWS infrastructure as code, contributing to knowledge graphs, and producing architecture and design artifacts. The role also requires collaboration across data platform teams and responsible use of AI-assisted development tools.

Design, develop, test, deploy, and support scalable software services, APIs, and event-streaming applications using Java and Spring Boot. Collaborate with engineers, architects, analysts, stakeholders, and product managers on technical solutions. Apply CI/CD and engineering best practices, participate in pair programming and TDD, and mentor junior engineers while supporting full systems lifecycle delivery.

Develop, deploy, and support proprietary trading applications for human and algorithmic derivatives traders. Collaborate with engineers, traders, and quants to design systems, add features to C# infrastructure, understand the full trading pipeline, and provide real-time support and bug fixes for live trading applications.

Designs, develops, tests, deploys, and supports reliable software solutions and significant application components. Translates business requirements into technical specifications, builds APIs and integrations, improves CI/CD and DevOps automation, performs testing and troubleshooting, monitors application health, and resolves production issues. Collaborates with product, architecture, engineering, and business teams while managing technical debt, supporting upgrades, guiding junior engineers, and participating in critical incident escalations.

Builds AI-enabled automation and tools for ServiceNow and other platform administration, inventory, release planning, environment lifecycle management, upgrades, and deployment processes. The role includes process improvement, troubleshooting, best-practice development, stakeholder collaboration, and occasional after-hours or weekend support.

Develop Android system applications for Toast’s device management platform, focusing on background services, device policy enforcement, setup, firmware and app updates. Support new hardware and OS upgrades, expand automated testing with Robot Framework, investigate production issues, and collaborate with product, hardware, QA, and software teams. The role requires strong Android development skills in Java or Kotlin, Android architecture libraries, debugging tools, and source control.

Design, develop, test, deploy, and support scalable, reliable, secure software solutions. Translate business and product requirements into technical designs, contribute to architecture decisions, improve testing, CI/CD, observability, security, and resilience, and support production systems. Collaborate across teams, resolve technical issues, mentor engineers, communicate tradeoffs, and influence engineering standards. Responsibilities and leadership scope vary across Senior, Staff, and Senior Staff levels.

Develop and maintain trading platform software and trading algorithms, identify technical opportunities, solve complex problems, and collaborate with traders, quantitative researchers, and engineers. The role involves working across the software development lifecycle, learning new technologies, and applying strong algorithmic and analytical skills in a dynamic financial markets environment.

Develop and maintain Kotlin-based payment terminal and SDK solutions deployed across Android, Linux, and backend environments. Build payment features, integrations, and business logic for cards, mobile wallets, and QR codes. Contribute to C++ libraries, automated testing, debugging, and product stability. Collaborate with engineers, designers, and stakeholders while mentoring teammates through reviews and debugging. The role is office-first in Chicago.

Build and launch scalable fullstack web applications and APIs for Affirm’s Ads Platform. Collaborate with product, design, analytics, and engineering partners to break projects into deliverable phases, make technical trade-offs, write tested and extensible code, monitor service metrics, support on-call operations, review code, and participate in team development and interviews.

Develop and deliver complex software features using Ruby on Rails and React. Responsibilities include system design, requirements clarification, deployments, operational support, performance and security improvements, database optimization, AWS infrastructure troubleshooting, SSO integrations, monitoring, web server administration, compliance implementation, automated testing, and mentoring junior engineers.

Develop backend tools and systems that improve batch development, testing, workflow efficiency, and reliability. Collaborate with product, infrastructure, design, and analytics teams; break projects into deliverable phases; build scalable, well-tested code; monitor metrics; support system availability and on-call operations; debug code; conduct reviews; and contribute to engineering growth and hiring activities.

Software Engineering Interns join agile full-stack teams for a 10-week program, completing software development lifecycle work on high-visibility business initiatives. Interns receive boot camp and training in Ruby, Rails, Go, and related technologies while collaborating with engineers and nontechnical partners. The hybrid role requires working from the Chicago office three days per week.

Build and improve high-traffic consumer web experiences using React and TypeScript. Contribute to experimentation, client-side tagging, marketing integrations, attribution, measurement, performance, testing, observability, and privacy-aware development. Collaborate with Product, Design, Marketing, Analytics, Data Engineering, and senior engineers. Break down projects, write reliable and extensible code, support operations and on-call efforts, participate in code reviews, and contribute to team growth.

Lead the design and development of ETL solutions for regulatory risk compliance at PNC, requiring advanced programming skills and collaboration on data-intensive applications.

Participate in a two-day social-impact hackathon building tech solutions for nonprofits. Develop, test, and troubleshoot software; write secure code; collaborate with engineers and stakeholders; use automation and approved AI development tools responsibly; attend training and mentorship; and potentially be considered for a 2027 Software Engineer Program Summer Internship.

Design and implement backend APIs, microservices, and checkout platform components for Affirm’s financial products. Own system health, improve performance and reliability, collaborate across engineering teams, and contribute to technical standards, tooling, and processes. The role requires developing, testing, and shipping high-quality software at scale while making customer-centric technical decisions.

Lead development of scalable search-platform software focused on product-catalog relevance. Design lexical and semantic retrieval, hybrid ranking, reranking, and learning-to-rank systems; evaluate quality through offline metrics and online experiments. Partner with Data Science, Product, Analytics, and Architecture teams on embeddings, relevance measurement, and technical solutions. Maintain production systems, resolve issues, mentor engineers, conduct code reviews, and promote continuous delivery and engineering best practices.

Develop and maintain backend services for OppFi’s financial technology platform. Responsibilities include building Java applications and services, collaborating in an Agile environment, conducting code reviews and testing, documenting best practices, and refining technical requirements into production-ready solutions. The role uses AWS, Docker, PostgreSQL, APIs, and related cloud-native technologies.

Develops and supports enterprise Salesforce solutions across the full software delivery lifecycle. Responsibilities include Apex and Lightning Web Components development, Salesforce configuration, integrations using REST and SOAP APIs, architecture contributions, automated deployments, code reviews, troubleshooting, documentation, and production support. The role collaborates with product, business, architecture, and engineering teams while promoting scalable, secure, maintainable solutions and continuous platform improvement.

Leads full-stack software engineering for secure, scalable corporate technology systems. Designs distributed, event-driven microservices using Java, Spring Boot, Kafka, MongoDB, and CQRS/Saga patterns; builds React and TypeScript applications; reviews code; improves operational stability; and guides architecture, testing, security, and AI-assisted engineering practices. Collaborates with vendors and internal teams while leading technical communities and promoting agile delivery.

Leads software engineering for secure, scalable financial technology applications. Designs distributed systems using event-driven pipelines, CQRS, and real-time streaming; develops and reviews React UI code; improves automation, testing, resiliency, and operational stability; collaborates with UX, product, backend, vendors, and internal teams; and guides responsible adoption of AI-assisted engineering practices.

Design, architect, and implement large-scale, reliable, and secure software systems for Customer Information Management. Partner with product and architecture teams, ensure code quality, CI/CD, testing, and observability, drive operational resilience, mentor engineers, and influence cross-team technical direction.

Design, implement, test, deploy, and monitor scalable backend services and high-availability processes. Lead architectural decisions, mentor junior engineers, drive feature lifecycles, improve code quality and testability, and respond to customer issues. Contribute to Agile planning and documentation across domains while addressing performance, scaling, and systemic problems.