Top Senior Software Engineer Jobs in Portland, ME

The role involves developing and maintaining scalable cloud-based services, enhancing system reliability, automating cloud infrastructure, providing technical leadership, and improving operational excellence.

The Staff Software Engineer will enhance developer productivity by designing tools, automating workflows, and mentoring teams on best practices in developer experience.

The Staff Software Engineer - Platform will design and build core services for scalable data analytics, mentor teams, enhance platform reliability, and implement cloud-native solutions.

Develop new features, fix bugs, refactor codebase in a TypeScript/React environment, collaborate with teams to meet user needs, and contribute to team culture.

Design and deliver features for the Ready-to-Build product, collaborate with sales and implementation teams, maintain and test code, enhance platform functionality.

Design and build backend functionalities for Temporal's high-availability services, ensuring reliability and scalability across cloud environments. Document processes and maintain service metrics.

The Staff Software Engineer leads the technical direction of the Quality and Release Platform, focusing on release engineering and code quality. Responsibilities include designing CI/CD systems, mentoring engineers, improving automation, and defining best practices for code quality and AI tools.

As a Senior Software Engineer, you will design and implement AI technologies to address complex logistics challenges and mentor team members.

As a Senior Software Engineer, you will develop solutions for improving support agent experience, focus on backend components, and collaborate with cross-functional teams.

Design, implement, and optimize core frontend, backend, and model-integration components. Drive engineering direction, ship and scale LLM-powered applications, build robust APIs and streaming systems, establish CI/CD and instrumentation, and deliver production-grade agentic workflows with measurable reliability and performance.

As a Staff Backend Engineer at FloSports, you'll lead backend development initiatives, focusing on scalable distributed systems, authentication frameworks, and mentoring engineers while collaborating with product teams for technical solutions.

Design and implement backend services in Go for high-throughput AI workloads. Collaborate with teams, optimize system performance, and maintain cloud integrations.

The Senior Software Engineer will develop features for Phantom's web platforms, lead new product initiatives, interface with users, and contribute to team culture.

The Senior Software Engineer will develop backend systems, mentor engineers, and collaborate with cross-functional teams while contributing to product features and roadmaps.

Lead design, build, and maintain CRM and MarTech integrations and services; lead technical discovery and execution; mentor engineers; collaborate with marketing and cross-functional teams; ensure system stability and participate in on-call rotations.

As a Staff Software Engineer, you will architect and scale AI/MCP Server and Gateway for multi-agent workflows, ensuring reliability and performance while collaborating with cross-functional teams.

As a Senior Software Engineer, you will develop scalable applications, collaborate with teams, and improve code quality while maintaining backend system reliability.

As a Staff Software Engineer at Radiant Security, you'll build and optimize data platforms, ensuring scalable data ingestion and system performance while collaborating across teams.

As a Senior Software Engineer in Localization, you'll contribute to Mozilla's localization projects and technology, improve internationalization features, and engage with the community of localizers while driving feature development.

As a Senior Software Engineer, you'll design modern scalable platforms, focusing on front-end and back-end development using VueJS/ReactJS and C# microservices, while integrating with AWS and modern data warehouses.

The Senior Backend Engineer will design and build scalable cloud-native backend systems for real-time monitoring and automation in HVAC operations, owning the entire lifecycle of services and mentoring junior engineers.

As a Staff Software Engineer AI-Native, you will build and evolve AI-native engineering workflows, design high-quality APIs, and collaborate with international teams to deliver reliable services while mentoring others.

The role involves designing, developing, and maintaining iOS applications, driving technical architecture, and promoting knowledge sharing within the team.

As a Senior Software Engineer, you'll build and maintain data infrastructure in Go for Bluesky's applications, ensuring scalability and performance on large backend systems.

Lead the development of scalable software solutions, design responsive UIs, manage AWS infrastructure, and ensure code quality through collaboration.