Top Senior Software Engineer Jobs in Chicago, IL

Develops secure, scalable software solutions using Golang within an agile banking technology team. Responsibilities include system design, application development, testing, troubleshooting, architecture documentation, data analysis, and operational stability. The role also uses AI-assisted development tools responsibly, validates generated code, supports automation, and improves coding practices and system architecture. Preferred experience includes Envoy Proxy, Kubernetes or AWS EKS, and identity protocols such as OIDC, OAuth 2.0, and SAML.

Leads the development and deployment of data solutions using Palantir Foundry and AIP. Manages engineering teams, coaches team members, oversees project planning and execution, analyzes system interactions, manages client relationships, and drives innovation. The role applies software engineering, data engineering, analytics, and AI/ML techniques to deliver scalable client solutions while maintaining technical and professional standards.

Leads the development and deployment of software and data solutions using Palantir Foundry and AI/ML technologies. Responsibilities include data engineering, analytics, system improvement, client account management, project ownership, team leadership, coaching, stakeholder engagement, and continuous improvement. The role requires building scalable applications with large datasets and delivering customer-focused solutions.

Build and operate high-throughput backend services for AI agents, calendar, scheduling, integrations, real-time data pipelines, and APIs. Design platform infrastructure, event-driven systems, and client-server protocols using Go, PostgreSQL, Kubernetes, and cloud platforms. Collaborate with AI, product, and frontend teams, improve reliability through testing and infrastructure as code, and mentor junior engineers.

The Founding Engineer will lead the development of Sailor Health's AI-powered platform, building systems for patient care and mentor the engineering team.

Build the core AI platform for an AI-native trading experience. Develop a high-performance Rust backend supporting streaming responses, low-latency tool execution, caching, and model orchestration. Design secure, observable APIs and runtime components with authentication, authorization, rate limiting, auditing, tracing, retries, and fallbacks. Build safe trading action infrastructure with deterministic previews, confirmations, idempotency, and audit logs while partnering with product and frontend teams.

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.

Build and ship backend features end-to-end using Ruby on Rails and SQL. Lead complex technical projects, solve architecture challenges, establish standards, conduct meaningful code reviews, resolve high-risk bugs, document systems, collaborate across engineering teams, and mentor junior engineers.

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.

Design, build, test, deploy, and support scalable software for Grainger’s customer order platform, including cart, pricing, freight, tax, payment, and invoicing capabilities. Partner with engineers, architects, analysts, stakeholders, and product managers to deliver maintainable solutions. Implement CI/CD and engineering best practices, participate in Agile development, solve complex technical problems, and mentor junior engineers.

Leads development and optimization of complex Tableau dashboards and analytics solutions. Oversees data integration across warehouses, SQL and NoSQL databases, and APIs using Python and automation. Mentors developers, guides architecture and performance improvements, partners with senior stakeholders, and manages strategic analytics initiatives. Promotes secure, responsible AI-assisted engineering practices, establishes validation standards, and delivers metrics supporting operational efficiency, cost modeling, capacity planning, and quality.

Leads software engineering efforts by providing technical direction, developing and reviewing secure production code, influencing system design and technology decisions, and serving as a subject matter expert. Builds and operates 24x7 tier-one online services while contributing to engineering standards, open-source data technologies, operational stability, and an inclusive team culture.

Design, develop, test, secure, modernize, integrate, and maintain mission-critical full-stack software for a federal defense program. Responsibilities include building front-end and back-end features, APIs, automated tests, secure coding fixes, CI/CD support, code reviews, defect resolution, documentation, Agile delivery, stakeholder coordination, and mentoring junior developers. The role requires collaboration across architecture, cybersecurity, cloud, database, testing, and Government teams.

Lead the design, development, rollout, and operation of Decisioning Studio integrations and distributed data pipelines. Build fault-tolerant ingestion and activation systems supporting batch, files, APIs, streaming, arbitrary schemas, multi-region deployment, compliance, and high-volume enterprise data. Own production reliability, observability, incident response, architecture decisions, and technical direction while collaborating with data science and product teams and mentoring engineers.

Designs, develops, tests, implements, and documents web and console applications using .NET technologies. Translates functional requirements into technical designs, partners with architects and infrastructure teams, applies architectural standards and design patterns, and provides technical leadership in a fast-paced environment.

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.

Leads technical architecture and engineering strategy for Capital One’s card technology platforms. Responsibilities include modernizing monolithic systems into microservices and event-driven platforms, defining API and architecture standards, ensuring performance and scalability, mentoring engineers, supporting development teams, and leading cross-divisional technical initiatives. The role requires hands-on software engineering, cloud computing, data architecture, enterprise design patterns, distributed systems, and technical thought leadership.

Staff Software Engineer responsible for leading design and delivery of large-scale order platform capabilities spanning cloud and point-of-sale systems. The role drives architecture, performance, reliability, API design, code quality, incident response, and technical roadmap alignment. It also requires cross-team collaboration, domain expertise in order processing and synchronization, mentoring engineers, and using AI-assisted development tools to improve productivity.

Develop and maintain scalable Java and Kotlin backend services for NinjaOne’s SaaS backup and recovery platform. Design high-availability features supporting backup, archive, restore, and download workflows at large scale. Collaborate with globally distributed engineering teams, own architecture and design decisions, mentor engineers, optimize databases and distributed systems, and deliver reliable production software using technologies including AWS, PostgreSQL, Redis, Kafka, and REST frameworks.

Designs, develops, tests, implements, and supports proprietary financial applications in a Microsoft-based environment. Analyzes business requirements and large datasets, builds system integrations, performs SQL-based analysis, validates solutions, and provides application maintenance and break/fix support. The role requires extensive SDLC experience, collaboration across teams, and expertise supporting asset management, financial instruments, or portfolio management systems.

Drives performance engineering and scalability across software systems by identifying bottlenecks, optimizing code, queries, databases, and architecture, and implementing fixes. Builds performance frameworks, data-generation tools, benchmarks, and CI/CD automation using k6, JavaScript, Grafana, and InfluxDB. Establishes performance standards, investigates distributed systems and cloud environments, documents architectural decisions, and collaborates with engineering teams to improve throughput, latency, reliability, and efficiency.

Lead frontend technical strategy for Affirm’s checkout decision orchestration systems. Design and architect scalable web applications, guide major technical initiatives, improve reliability and operational processes, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on building fast, clear, and reliable checkout experiences using modern declarative UI frameworks.

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.

Design, build, and operate low-latency, high-throughput ad delivery systems for bidding, ranking, auctions, and pacing. Integrate ML signals, collaborate with Product and Data teams, ensure reliability and observability, run operational reviews, and mentor engineers while driving scalable backend APIs and data processing pipelines.

Leads full-stack software engineering for secure, scalable enterprise applications. Designs, develops, reviews, debugs, and troubleshoots Java-based solutions using microservices, cloud-native architecture, databases, messaging, and modern UI frameworks. Drives automation, application resiliency, AI-assisted engineering practices, secure coding, testing standards, architectural evaluations, and adoption of emerging technologies. Coaches teams, leads communities of practice, and collaborates across internal teams and external vendors.