Top Senior Golang Jobs in Chicago, IL

Build and scale Buyercloud ad-serving systems that process billions of auctions daily. Design data- and model-driven features, optimize performance and cost, extend observability, participate in on-call rotations, produce documentation and playbooks, and support production incidents.

Senior Software Engineer responsible for developing and maintaining web applications and microservices (React, Golang). Mentor team members, lead code reviews, influence technical decisions, improve CI/CD and testing strategies (unit, E2E, performance), collaborate across teams on integrations, and promote engineering best practices and documentation.

Build and maintain high-performance, low-latency cloud-native microservices in Go for identity resolution and audience targeting. Own features end-to-end, optimize query and data-access paths (Aerospike, Kafka, Snowflake, S3), ensure reliability with observability and CI/CD, troubleshoot production incidents, enforce data quality, and collaborate with product, SRE, QA, and data teams to evolve identity and audience-domain architecture.

Design and build high-performance backend services and cloud-native applications in Go. Develop Kubernetes controllers/operators, gRPC/REST APIs, integrate messaging and data stores, profile and optimize performance, implement observability and tests, lead reviews, and mentor engineers while maintaining documentation and platform tooling.

The Senior Software Engineer will modernize USPS shipping technology, refactor legacy systems for cloud integration, and develop high-performance services using Go, while collaborating with teams and addressing production challenges.

Senior Go developer to build data aggregation and transformation systems, automated trading solutions, and service APIs. Design and implement highly loaded, fault-tolerant distributed systems using concurrency, synchronization, unit testing and mocking, performance metrics and tuning. Work with network/file streams, SQL/NoSQL and key-value stores, message brokers, and containerized deployments.

Lead the backend team, setting technical direction for a scalable platform, designing distributed systems in Golang, and mentoring engineers.