Top Principal Engineer Jobs in Boston, MA

Lead design and hands-on development of low-latency, real-time trading and market-data platforms for public markets. Architect event-driven, API-first systems, embed CI/CD, observability, and responsible AI practices, collaborate with product and enterprise teams, and mentor engineers to deliver resilient, cloud-native solutions.

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 Principal Radar Systems Engineer leads radar system development, collaborates with multi-disciplinary teams, and ensures effective solutions to customer needs while applying systems engineering principles.

As a Principal Healthcare Cloud Engineer, you will architect cloud-based solutions for healthcare, automate deployments, mentor teams, and innovate technology practices.

The Principal Software Engineer will architect and lead the development of scalable systems, drive technical excellence, mentor teams, and promote best practices at a fintech company.

The Principal ML Engineer at Agero will develop and productionize a Dispatch System using ML models, optimize decision-making processes, and lead a team to improve operational performance.

Lead machine learning initiatives to enhance underwriting model accuracy. Design and implement advanced training strategies and optimize workflows. Mentor engineers and influence modeling strategy.

The Principal Software Engineer will lead teams in developing full-stack applications, enhance services, drive architectural discussions, and mentor other engineers.

The Principal Front-Office Engineer designs and implements applications to enhance risk analysis and reporting, working closely with risk teams. The role focuses on building robust systems and tools in a fast-paced investment environment, leveraging software engineering skills and financial knowledge.

Responsible for ensuring security and integrity in technology operations, providing expertise in security engineering, and collaborating with teams to embed security measures in API design and deployment.

As a Principal Software Engineer, you will mentor junior engineers, solve technical problems, and enhance customer-focused software solutions in an agile environment.

Lead design and implementation of enterprise-grade AI systems, architect AI infrastructure, and drive technical strategy for AI-powered products primarily for military applications.

Lead the development of ultrasound products, define electrical designs, resolve technical issues, collaborate with cross-functional teams, and mentor engineers.

The Principal Engineer will develop AI tools for scientific authoring, enhance document workflows, and collaborate with scientists for AI integration in regulatory and manuscript submissions.

The Principal Electrical Systems Engineer will lead the development of prototypes, design reusable modules, and evaluate new technologies for future product platforms, collaborating across teams.

The Principal Product Analytics Engineer leads the design and architecture of Toast's product analytics ecosystem, ensuring reliable and scalable data for analysis across various platforms. This role involves creating data frameworks, implementing quality controls, and collaborating with cross-functional teams to support data-driven product development and AI insights.

Lead the development of software for handheld imaging devices, focusing on UI/UX, data processing, and AI/ML integration in a multidisciplinary team.

Seeking a Principal QA Engineer to define test strategies, ensure quality in enterprise applications, collaborate with teams, and oversee testing practices.

Seeking a Senior Software Engineer to build and manage scalable data products and user experiences, collaborating across teams to deliver insights.

Lead application security strategy at Upstart, focusing on threat modeling, application security controls and influencing engineering to enhance security posture across products.

Lead the design and execution of radar sensing platforms and wireless communication subsystems. Collaborate cross-functionally, innovate with the latest technologies, mentor team members, ensure quality and reliability in RF designs, and troubleshoot complex issues.

As Principal Product Manager, you'll drive the evolution of PagerDuty's developer platform, focusing on API integration and developer experience, while collaborating closely with engineering and AI teams.

Design, implement, and maintain C++ tracking and estimation software for ISR and sensor systems. Lead small multidisciplinary teams, manage codebase from requirements through testing, support demonstrations and customer interactions, and work within Agile/DevSecOps environments on Windows and Linux.

The Principal Model-Based Systems Engineer will lead development programs using MBSE approaches, mentor teams, and implement digital engineering goals, focusing on DoD systems.

The Principal Software Engineer at Snyk will lead technical initiatives, mentor engineers, engage with stakeholders, and influence product strategy, focusing on software security and scalability.