Top Senior Golang Jobs in Portland, ME

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, develop, and maintain scalable backend services in Golang. Build and consume REST APIs and microservices in cloud environments, collaborate with cross-functional teams, debug and optimize performance, and participate in code reviews and best-practice adoption.

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.

Design, develop, test, and maintain scalable front-end and back-end services and APIs. Lead technical design, perform code reviews, troubleshoot production issues, document systems, implement automated tests, and collaborate with cross-functional teams to deliver reliable shipping infrastructure.

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

Build, ship, and maintain cloud-native and air-gapped delivery tooling (UDS/Zarf) across mission-critical environments. Contribute to system design, production support (on-call), security and interoperability, open-source contributions, and technical documentation. Mid-levels own scoped features; seniors lead architecture, cross-team initiatives, and mentor others.

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.