Top Senior Software Engineer Jobs in Portland, ME

The Software Engineer Sr leads UI design and development, optimizing scalable applications, mentoring staff, and ensuring compliance with standards while collaborating with teams.

Lead the design and implementation of scalable monetization systems while mentoring engineers and driving technical strategy for revenue growth.

As a Software Engineer Principal (UI), you'll design and code software solutions, provide technical guidance, and lead problem-solving efforts to meet complex business needs.

As a Software Engineer/Senior Software Engineer, you'll design, develop, and maintain high-quality software solutions, focusing on API development and technical excellence while collaborating with teams.

As a Senior Full-Stack and Platform Software Engineer at mabl, you will develop features for an AI-powered test automation platform, enhancing user experiences, designing APIs, and optimizing data pipelines while collaborating with cross-functional teams.

Manage clusters, develop with Golang, provision infrastructure with Terraform, and enhance performance of the platform handling untrusted code.

As a Principal Mobile Software Engineer, you'll lead mobile platform development, scale React Native architecture, mentor engineers, and collaborate across teams to build impactful features.

The Software Engineer Principal leads the design and development of large-scale systems, mentoring teams and driving architecture decisions while ensuring compliance with best practices and security standards.

Seeking a Software Engineer/Senior Software Engineer to design, develop, and deliver quality backend services and APIs using Go, with emphasis on Kubernetes and cloud services.

Develop and enhance features within the Subscriptions Backend, ensuring system stability and observability, and leading architectural decisions.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.

The role involves developing the BLE implementation on mobile products, collaborating with cross-functional teams, mentoring junior developers, and ensuring high-quality code delivery in a fast-paced environment.

Design, maintain, and evolve core backend systems and APIs. Collaborate with product teams to create durable and reusable systems while enhancing performance and security.

Build enterprise-grade authentication, authorization, and identity features across the full stack. Design and implement RBAC, provisioning (SCIM), SSO/OAuth integrations, secure public APIs, and admin workflows for auditing and compliance. Own end-to-end product changes, collaborate on architecture, and mentor engineers to deliver scalable, reliable systems for enterprise customers.

As a Staff UI Software Engineer, you will lead the design and architecture of the Basis application, mentoring others and driving large-scale projects while enhancing UI performance and quality.

The role involves leading projects as a full-stack engineer, focusing on SaaS products, enhancing user experiences, and building accessible software.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Lead the evolution of the frontend platform, design complex user interfaces, provide technical leadership, and optimize CI/CD infrastructure for a scalable experience.

As a Software Engineer at Vercel, you will enhance and improve the CDN's performance, analyze web latency, and support a team of developers working primarily in Lua.

The Senior Software Engineer will design and optimize recommendation algorithms, maintain data pipelines, and improve personalized user experiences using machine learning techniques and backend engineering skills.

The Staff Software Engineer will lead design, development, and mentoring in building Embedded Finance capabilities while ensuring high-quality production services.

As a Senior Software Engineer, you will build and integrate marketing technology stacks, lead technical projects, collaborate with cross-functional teams, and foster a high-performing engineering culture.

The role involves developing high-quality front-end software for freight logistics, mentoring junior engineers, and collaborating on customer experience projects using advanced frameworks.

Develop and deliver high-quality front-end software for freight logistics. Lead design, mentor junior engineers, and enhance customer experiences using modern frameworks.