Top Senior Software Engineer Jobs in Portland, ME

Seeking a Senior Drupal Software Developer to implement custom Drupal websites and mentor a team while ensuring solutions are accessible and responsive.

Build full-stack features for a web-based broker platform serving Medicare customers. Work across frontend and backend, influence architecture, reduce technical debt, collaborate with product and design, use AI-powered developer tools, and mentor engineering best practices to scale the platform.

Senior Software Engineer responsible for designing, building, and maintaining the loans platform. Collaborate with product and cross-functional teams to deliver reliable, scalable, and secure services; mentor engineers; improve system performance, observability, and deployment practices.

As a Senior Software Engineer, you'll design, develop, and maintain full-stack applications, utilizing TypeScript and modern frameworks while collaborating cross-functionally to enhance user experience and performance.

Provide technical leadership for internal platforms and security automation supporting Upstart Bank. Lead architecture, design, and implementation of platform services, APIs, relational schemas, authentication and RBAC systems. Partner with risk, compliance, and operations stakeholders, mentor engineers, mitigate technical risks, and drive long-term platform strategy and engineering standards.

Design, build, and maintain internal software platforms, APIs, integrations, and data workflows that support risk, compliance, legal, and bank operations. Translate stakeholder requirements into scalable architectures, relational data models, authorization and audit systems, and background processing. Produce technical designs, documentation, and contribute to platform-wide architecture and build-versus-buy decisions.

The Software Engineer will modernize the platform, enhance legacy systems, design new services, and collaborate on architecture, leveraging various technologies and engineering practices.

The role involves optimizing hardware support within a software stack for AI model deployment, collaborating with teams and hardware vendors to enhance performance and portability across platforms.

As a Senior Software Engineer, you'll lead the design and implementation of impactful software systems, collaborating with product managers and the open-source community to drive project success and ensure seamless integration with defense systems.

The Senior Full-Stack Software Engineer will develop robust solutions in React and NextJS, work on both front and back ends, and leverage AI tools for productivity. Responsibilities include modernizing applications, building modular components, and ensuring high code quality in a collaborative environment.

Design, build, and maintain RESTful connectors and normalization layers for identity/entitlement data; implement data sync, delta detection, and versioning; develop Next.js/React dashboards; integrate enterprise APIs and secure read-only auth; use AI-assisted coding tools; collaborate with PMs, architects, and QA while maintaining documentation and version control.

As an SDET, you will design and implement test automation for AWS serverless payment processing, ensuring reliability, scalability, performance, and security in a CI/CD pipeline.

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

The Senior Software Engineer will lead projects for the Forms platform, designing and building features across web, mobile, and backend systems while mentoring other engineers and improving platform scalability and reliability.

Lead quality assurance and test strategy across Agile teams, drive automation for testing, mentor QA teams, and ensure high-quality software delivery.

The role involves end-to-end ownership of features across the MERN stack, optimizing performance, collaborating on design, and participating in discussions like roadmapping and code reviews.

As a Senior Software Engineer, you'll build AI-powered features, integrate LLMs, design scalable systems, mentor teammates, and collaborate to enhance user experiences.

The Software Engineer will develop a modern data platform, manage architecture, write reusable code, and ensure system integrations. Responsibilities include collaborating with teams, documenting processes, and enhancing applications.

The role involves developing APIs, building internal tools, and collaborating with teams to enhance system performance while solving engineering challenges.

We are seeking a product-minded backend engineer to work on our Customer Studio product, focusing on data performance, analytics, audience syncing, and generative AI. The role requires strong architecture, scalability considerations, and product engagement.

The role involves developing tools for enterprises to manage Hightouch deployments, focusing on access control, change management, and data warehouse performance.

You will develop and enhance the LivePerson Voice product, focusing on stability and innovation, and create new APIs and features while collaborating with teams to deliver quality software solutions.

Lead full‑stack development of cloud-based web applications, designing and implementing front-end and back-end components, CI/CD pipelines, and infrastructure (Terraform/AKS). Mentor developers, collaborate with product/design/architects, ensure performance, security (OAuth/JWT), testing, and integration with databases and third‑party services. Provide technical leadership and ownership across project lifecycle and production support.

This role involves leading web platform initiatives, mentoring senior engineers, architecting web applications, and implementing technical strategies for improved performance.

The Senior Software Engineer will lead the development of payment systems, oversee key subsystems, mentor engineers, and ensure high-quality code and architectural standards while collaborating with cross-functional teams.