Top Senior Golang Jobs in Seattle, WA

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.

Design and build high-performance Go backend services, APIs, cloud-native applications, CLI tools, Kubernetes controllers, and operators. Optimize concurrency, memory, garbage collection, latency, and throughput. Integrate messaging systems and data stores while implementing testing, observability, security, and documentation. Lead code and design reviews, mentor engineers, contribute to shared Go libraries and platform tooling, and translate ambiguous requirements into reliable production solutions.

Design, build, and scale distributed backend services supporting hundreds of thousands of users. Develop efficient Golang and Python code, optimize infrastructure, make architectural decisions, conduct code reviews, and collaborate with frontend and mobile engineers. The role also involves technical planning, platform innovation, and contributing to product evolution in an autonomous startup environment.

Design and build Go-based control-plane services, CSI drivers, and tooling for high-performance storage integrated with Kubernetes AI and compute workloads. Develop declarative Terraform/OpenTofu and GitOps automation, telemetry, and observability systems. Support bare-metal, hybrid, air-gapped, and sovereign deployments using Kubernetes, Cluster API, Harbor, and PKI/TLS. Integrate enterprise and scale-out storage platforms while addressing throughput, latency, reliability, consistency, and scaling.

Design and build scalable distributed backend systems in Golang using PostgreSQL and Redis. Architect highly available services across microservices, networking, and cloud platforms; prototype and productionize platform capabilities and internal tooling; collaborate with CTO leadership on strategic initiatives; and influence engineering standards. The role focuses on greenfield AI infrastructure, developer tooling, performance, reliability, and systems operating at scale.

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.

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.

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.