Top Senior Software Engineer Jobs in Portland, ME

Lead test strategy and build scalable automated test frameworks for a custom Linux kernel. Validate performance, reliability, and security; develop test suites for kernel enhancements and VM software; debug low-level system issues; enhance CI/build automation; provide technical leadership and mentor junior engineers.

The Senior Software Engineer will architect and develop the Solver network, ensuring performance, collaborating with teams, and leading engineering standards.

The role involves leading frontend development, maintaining UI components, overseeing CI/CD pipelines, mentoring engineers, and enhancing application performance in collaboration with cross-functional teams.

The Senior Software Engineer, Fullstack will lead product development by collaborating with teams, owning projects from inception to production, and ensuring high-quality code and system performance.

As a Senior Software Engineer, you'll ship quality software across the web stack, collaborate with product/design teams, and provide technical leadership within a small engineering team.

Lead architecture and delivery of scalable, secure web products. Collaborate with product and ministry stakeholders, guide vendors, review code, and ensure quality, security, and maintainability across platforms.

Lead and manage a high-performing engineering and DevOps team, developing software applications and cloud infrastructure, ensuring reliability and scalability.

As a Senior Applied AI Engineer at Vanta, you'll design and implement AI-powered features, mentor engineers, and ensure AI systems improve customer experience, leveraging LLMs and full-stack development skills.

The Open Source Engineer will expand LanceDB's integration with big data systems, manage dataset operations, and enhance open-source community efforts.

Develop AI/ML-powered features in ClickHouse Cloud, focusing on frontend and API architecture, UI/UX, and integrations with AI systems.

As a Staff Software Engineer, you’ll lead the design and reliability of Duetto's data lakehouse, evolving data systems using Python and AWS, ensuring data quality, and implementing AI-driven solutions.

As a Senior Software Engineer, you will deliver software solutions for clients, teach agile practices, and ensure project success through collaboration. You will work directly with teams and clients to implement effective software development methodologies.

The Senior Software Engineer will build scalable backend systems, design APIs, and integrate ML models, enhancing Yahoo's search functionality.

Build and improve backend systems (primarily DogByte) supporting hospital workflows. Own projects end-to-end from design to production, collaborate with Product, SRE, and DevSecOps, apply AI tools thoughtfully to developer workflows, and review cross-team work to ensure reliability, scalability, and maintainability.

Lead technical vision and architecture for a scalable virtual care platform. Architect and develop Ruby on Rails backend, build React front end, guide technical decisions, collaborate cross-functionally, drive adoption of new technologies, and contribute to long-term product roadmap while mentoring engineers.

Lead design, development, delivery, and maintenance of high-performance web applications for Provider Directory and Scheduling. Collaborate cross-functionally, mentor engineers, resolve performance and concurrency issues, build integrations with EHRs, and improve reservation/resource-sharing systems to ensure secure, well-tested, and documented solutions.

Design and implement Kotlin/Java Android apps, frameworks, and SDKs for vehicle infotainment (AOSP/AAOS). Use test-driven development, collaborate with UX, product, cluster, and mobile teams, contribute to architecture and code reviews, and deliver high-quality embedded HMI features for EVs.

Design and implement Kotlin-based Android/AOSP/AAOS apps, frameworks, and SDKs for vehicle infotainment. Deliver features and fixes, use TDD, perform code reviews, write design docs and roadmaps, collaborate with UX/product/engineering, and provide technical leadership.

Build and maintain end-to-end features across frontend and backend; collaborate with product, operations, sales, and marketing; scope, prototype, test, deploy, and maintain services; write maintainable code and exhaustive tests; participate in code reviews; mentor teammates; estimate and prioritize work; operate effectively in an asynchronous remote environment.

Build and own mission-critical full‑stack features for a cannabis ERP and commerce platform. Work across product, design, and support to deliver high-quality code, tests, and AI-native workflows; define timelines, communicate progress, and ensure data integrity and compliance.

The role involves developing and optimizing core components of the Flow blockchain protocol, focusing on performance, scalability, and reliability, while also ensuring interoperability with the web3 ecosystem.

As a Staff Software Engineer, you'll architect and build foundational platform services, focusing on data infrastructure, healthcare interoperability, and secure APIs while mentoring other engineers.

Design, architect, and deliver scalable full-stack web features; own complex systems end-to-end; mentor engineers; deploy and manage cloud-based, containerized applications; maintain high code quality and excellent user experience while collaborating with product.

The Software Engineer V - Security Engineer will lead security measures, translate compliance requirements into actionable guidance, and proactively secure sensitive data across product teams.

Lead the design and implementation of identity and access management solutions, collaborating in an agile environment and providing technical leadership.