Top Senior Software Engineer Jobs in Portland, ME

The Senior Software Engineer will design backend services, improve data pipelines, and enhance reporting infrastructure while mentoring other engineers. This role supports capital partners by ensuring accurate data flow through Upstart's platform.

As a Staff Software Engineer, lead and design complex frontend systems, mentor junior engineers, and drive technical direction across multiple teams.

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.

As a Staff Software Engineer, you'll define Webflow's deployment strategy, enhance developer productivity, and mentor engineers while ensuring system reliability.

Lead the design and delivery of scalable data platform services, guide engineers, and improve engineering practices while collaborating with cross-functional teams.

The Senior Software Engineer will design and implement solutions for a restaurant platform, enhance performance and collaborate with teams to solve challenges.

The Senior Software Engineer will lead technical strategies, build AI-driven software systems, mentor junior engineers, and ensure security best practices.

Lead architecture and implement scalable features for the Risk Cloud platform using Spring Boot/Java and modern back-end tools. Write and review tests, collaborate cross-functionally using Agile, improve front-end performance, and contribute to CI/CD and infrastructure-as-code practices.

As a Senior Software Engineer, you will develop and enhance core software libraries, maintain APIs, lead projects, and mentor junior engineers while collaborating in an Agile environment.

As a Senior Software Engineer in Growth, you'll drive revenue through technology, collaborating with cross-functional teams to build solutions and products that enhance customer growth and operational efficiency. You'll utilize your skills in full stack development, leveraging data for impactful decisions while mentoring junior engineers.

As a Senior Backend Engineer, you'll develop and enhance authentication strategies, improve access management, and ensure security for GitLab users, focusing on scalable solutions.

Lead architecture and implementation of a new frontend platform, define org-wide frontend best practices, mentor engineers, collaborate with product/design/backend, operationalize tools and CI/CD, drive cross-team initiatives, and ensure high-performance, maintainable, and accessible frontend systems.

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 enhance video capabilities, support live streaming and storage infrastructure, and collaborate on platform development. Responsibilities include coding, mentoring, and ensuring platform reliability for millions of users.

As a Software Development Engineer in Test, you'll create and conduct automated tests, resolve technical issues, and collaborate with development teams to ensure software quality.

As a Lead Infrastructure Engineer, you'll enhance database reliability, automate infrastructure, collaborate on initiatives, and participate in on-call duties.

Lead the technical direction of Care & Onboarding platforms by driving architectural decisions, overseeing large initiatives, and enhancing engineering quality.

Lead AI feature development, integrate large models, collaborate cross-functionally, ensure technical quality, monitor AI advancements, and build user interfaces and tools for AI applications.

The Senior Staff Software Engineer will architect Affirm's lakehouse analytics platform, lead data governance efforts, mentor engineers, and collaborate across teams to optimize data solutions using Snowflake and other big data tools.

The Senior Software Engineer will develop scalable backend applications, enhance DevOps practices, drive architectural solutions, and improve system infrastructure in a collaborative environment.

Design, build, and operate reliable and scalable systems to support Anrok's product, focusing on technical debt, security, and performance optimization.