Top Backend Engineer Jobs in Chicago, IL

The Senior Platform Backend Engineer will design and operate AWS-based systems, focusing on backend services for data platforms and analytics, while ensuring reliability and operational excellence.

The Backend Engineer will develop infrastructure for product integration, create documentation for team training, and influence technology decisions.

Design, optimize, and scale ClickUp's search infrastructure using OpenSearch/ElasticSearch. Improve relevance, speed, and real-time indexing; build vector/semantic search capabilities; create measurement frameworks; integrate search with AI and product features; troubleshoot at scale; and mentor junior engineers to maintain high search quality under heavy load.

Build and maintain secure, well-tested backend systems and internal tooling (dashboards, workflows, automation) for lending and trading operations. Design scalable APIs and durable workflows, integrate external services, optimise performance, and collaborate with Risk, Ops, Trading, Product, and Engineering teams to deliver reliable production systems.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

The Staff Backend Software Engineer will design and improve scalable backend systems for Dropbox's Commerce Platform, ensuring system reliability and data consistency while influencing technical strategy and collaborating with cross-functional teams.

The Staff Software Engineer will lead technical strategy, ensure system availability, and develop backend systems at scale, collaborating across teams to drive capacity modeling and operational quality.

Develop and enhance backend systems, collaborate with teams for project execution, and improve engineering standards and processes.

Develop a platform for liquidity and loan collateralization. Responsibilities include building and integrating data pipelines, creating user experiences, and collaborating with teams for system design.

The Software Engineer, Backend Engineer will develop, automate, and maintain core functionalities for Rescale customers, focusing on backend systems and cloud services.

Define technical direction and architect systems for high-performance, scalable infrastructure. Mentor engineers and drive architectural decisions. Manage large-scale data ingestion and retrieval.

The Staff Backend Engineer will lead the Gatekeeper system, focusing on performance, reliability, and operations while collaborating with service teams to enhance overall system durability and security.

The Staff Backend Engineer will architect high-throughput streaming systems, define technical direction, mentor engineers, and solve complex problems for Helius' core products.

The Staff Backend Engineer will design and scale core systems for a B2B SaaS platform, focusing on backend architecture, reliability, and AI-assisted engineering workflows.

The Backend Engineer will architect and optimize execution and matching infrastructure for low-latency trading systems, focusing on performance with a strong systems background.

As a Backend Engineer, you'll design and implement systems for decentralized applications, enhance scalability, and collaborate with the team.

The Lead Software Engineer will develop automated testing capabilities for Capital One's applications, manage test execution, and lead diverse technology projects. The role requires collaboration with product teams and implementing cloud-based solutions while mentoring team members.

The Senior Backend Engineer II will design, build, and maintain backend services for financial workflows, collaborating with product and engineering teams to enhance system reliability and performance.

The Backend Developer will design and implement scalable applications, maintain cloud services, ensure security best practices, and collaborate on new features.

Drive technical strategy and architecture, lead cross-functional projects, ensure system reliability and performance, mentor engineers, improve operational practices, and communicate effectively across teams.

As a Senior Backend Engineer, you will design and maintain backend services, integrate healthcare systems, and mentor junior engineers. Your role involves ensuring data security and reliability while collaborating across teams on API design and cloud deployment.

As a Software Engineer, you'll design, build, and maintain IAM solutions, ensuring security and reliability while working with cloud computing standards.

The Lead Engineer will design and manage scalable web applications and collaborate with cross-functional teams to implement high-quality software for BigFuture. Responsibilities include architecture definition, mentoring, and leading Agile ceremonies while exploring technologies like AI.

Seeking a Software Engineer to build scalable applications for ETF operations, automate data validation, and integrate diverse financial data sources.

Design and implement on-chain minting and cross-chain liquidity systems, build scalable REST/GraphQL backends, deploy multi-region cloud services with CI/CD and containerization, implement monitoring and alerting, mentor engineers, support partners, and deliver DeFi-focused features with strong documentation.