Top Senior Software Engineer Jobs in Portland, ME

The Staff Software Engineer, Backend will lead backend development, modernize the tech stack, ensure service quality, and mentor engineers.

As a Senior Software Engineer, you'll work on backend systems, engage in engineering challenges, and contribute to software development and deployment.

As a Staff Data Engineer, you'll architect and build data pipelines, champion small data strategies, mentor teams, and ensure operational excellence in data workflows.

As a Senior Software Engineer, you will develop core components of TipCalc, optimize backend services, and ensure high engineering standards through design and code reviews.

As a Senior Software Engineer, you'll design and implement full-stack features, develop AI-driven workflows, and ensure code quality for a dental billing platform while collaborating with users to address their needs.

Lead company-wide transformation of test automation and quality engineering: define vision and roadmap, architect scalable testing frameworks across server/web/mobile/desktop, integrate AI/LLM for test generation and flakiness management, establish observability and quality gates, mentor engineers, and partner with leadership to embed quality across the SDLC.

As a Senior Software Engineer, you will design and develop user-facing applications, enhance product experiences, and collaborate with teams to drive improvements in user engagement and satisfaction.

Own and enhance a large section of the API platform: lead technical direction, design and build API decisioning products, write automated tests, troubleshoot/resolve production issues, ensure SLAs and participate in on-call rotations, and collaborate with product, security, and engineering teams.

The Senior Software Engineer will develop full stack software using Typescript, MySQL, React, and Next.js, oversee features from conception to production, and collaborate across teams at Ethena.

Oversee the CI infrastructure as the Product Owner, manage integrations, optimize performance, and support observability and incident management while collaborating with engineering teams.

The Principal Software Engineer will lead integration domains, make architectural decisions, mentor engineers, and drive AI-driven solutions for cybersecurity tools.

The role involves designing and developing full-stack features using Angular and Java/Spring Boot, building scalable services, and optimizing system performance. Responsibilities include API design, technical documentation, and collaboration with engineering teams.

The Senior Software Engineer will develop and execute the strategy for Corporate Payments products, focusing on architectural roadmaps and innovation in engineering practices.

The Lead Software Engineer will develop and implement strategies for Corporate Payments products, enhance architecture, and foster a collaborative engineering culture.

As a Senior Software Developer, you will enhance TherapyNotes' platform by building features, designing APIs, and mentoring junior developers.

The QA Engineer will design and maintain automated testing frameworks for web, mobile, and backend systems, perform data validation, and collaborate with teams to integrate tests into CI/CD pipelines.

Design, build, and own integrations connecting Chainguard products to cloud marketplaces, vulnerability scanners, and observability tools. Develop security advisory systems and APIs, support cloud platform integrations (GCP/AWS/Azure), mentor peers, and drive long-term, scalable architecture and partner onboarding initiatives.

The Senior Software Engineer will lead the design and implementation of full-stack features, mentor peers, and contribute to architectural decisions focusing on enterprise-grade software solutions.

The Senior Software Engineer will develop reliable systems for IoT fleet management, create user interfaces, and support data engineering tasks.

The Principal Software Engineer will lead software architecture, design, and development for genetic testing systems, collaborating across teams to deliver robust solutions that enhance patient care.

As a Senior Software Engineer, you will build software for carbon dioxide removal efforts, focusing on full-stack development and optimizing complex workflows.

The Senior Software Engineer will build backend systems, collaborate with customers, drive product features, and enhance AI automation at Acai Travel.

The Sr Software Development Engineer will design and maintain scalable cloud-based solutions, lead project technical direction, and ensure high-quality deliverables in a fast-paced Agile environment.

Develop and deliver production-ready front-end and back-end code, design within service architecture, debug cross-service issues, mentor teammates, and lead process improvements to ensure high-quality, timely software delivery.

Develop and maintain software applications, ensuring code quality and collaborating with teams to design solutions. Lead and mentor junior engineers and improve development practices.