Top Principal Engineer Jobs in Boston, MA

Lead high-leverage technical work across teams: define architecture and patterns, drive end-to-end delivery and operational excellence, ship AI-enabled systems, mentor engineers, set AI guardrails, and represent technical leadership internally and externally.

No specific responsibilities listed. Senior technical leadership role to develop and direct hedge fund and analytics technology platforms, collaborate with investment stakeholders, design and implement analytics systems, and mentor engineering staff.

Lead architecture and development of modern, secure web administration UIs for Imprivata's Identity Configuration Platform. Drive front-end standards, build React/TypeScript applications, integrate with identity protocols (OIDC, SAML, OAuth), mentor engineers, collaborate with product/UX/backend teams, and improve performance, reliability, and maintainability within an Agile environment.

Lead design and optimization of low-observable aircraft features, perform electromagnetic signature modeling and simulation, direct RCS testing and validation, partner with materials and multidisciplinary teams to mature RAM and coatings, translate threats into survivability features, and support program assessments and milestone decisions.

Lead design and prototyping of generative AI experiences for autonomy development; drive UX for Hivemind products; perform user research, collaborate with CTO and product leads, and deliver reference implementations and integrations across full-stack web and edge systems.

The position involves reversing complex software/firmware, developing cybersecurity solutions, leading technical teams, and conducting vulnerability research, all while ensuring national security.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

Lead system architecture and engineering for advanced audio products, collaborating across teams to define technical strategies and ensure successful product development.

The Principal Engineer will lead electronic systems development for atomic clocks, mentor engineers, and collaborate across teams on design execution.

The Principal Engineer - Process will support manufacturing and development of the Chip Scale Atomic Clock, focusing on process optimization, materials analysis, and lean manufacturing methodologies.

Lead development, monitoring, and optimization of wafer fab processes (photo, etch, deposition, diffusion) to improve yield, cycle time, cost, and equipment reliability. Create/update process specs, qualify new equipment, apply SPC/DoE and Six Sigma, analyze data (Excel/JMP), present results, and lead cross-functional teams to resolve production issues.

Design, implement, and maintain DevSecOps features for cloud-native and on-prem database platforms. Collaborate with product and cross-functional teams, follow development workflows (source control, code reviews, CI/CD), write automated tests, and support security, configuration, monitoring, licensing, and upgrades across Kubernetes and traditional deployments.

Lead architecture and evolution of Kubernetes-based cloud and hybrid platforms. Design scalable, secure, multi-cluster platform capabilities, drive multi-year roadmaps, mentor senior engineers, lead incident response and platform transformations, and enable developer productivity across hundreds of teams.

Lead design, implementation, testing, and maintenance of mobile and web software. Build APIs and web applications, author documentation, create prototypes, perform code reviews, collaborate with designers and QA, support releases and post-release maintenance, mentor peers, and provide technical input for project estimates and sales.

The Principal Engineer will lead the design and delivery of core platform capabilities, focusing on scalable systems, AI application, and mentoring engineers while driving architectural decisions and improving operational systems.

As a Principal Software Engineer, you'll architect and code backend services and ML models, integrate them with Salesforce, and mentor junior engineers.

Lead the research and development of algorithms for motion planning in autonomous driving, integrating predictive systems and mentoring team members.

The Senior Principal Engineer will define and develop system architectures for high-speed industrial products, collaborating closely with customers and stakeholders. Responsibilities include product definition, development, and support, along with participation in business development and technical troubleshooting.

The Principal Engineer will guide architectural strategy, solve complex technical challenges, mentor engineers, and ensure compliance with healthcare standards.

Lead architecture, design, and development of embedded electronic systems including hardware, firmware (C/C++), PCB design, test and production software, system bring-up, troubleshooting, and manufacturing support while mentoring junior engineers.

The Staff/Principal Engineer will lead AI-assisted engineering efforts, architect solutions using C#, React, and Python, and drive MLOps initiatives while mentoring senior engineers in a healthcare technology context.

Develop algorithms for autonomous driving and create software for safe and intuitive motion planning. Collaborate with perception and control components, and mentor team members.

Design, implement, and validate DSP algorithms for licensable audio technologies (noise reduction, voice pickup, spatial audio, speech enhancement). Ensure algorithm robustness, portability, and scalability across embedded real-time platforms and partner products. Support integration, tuning, testing on hardware, evaluate third-party tech, and collaborate with systems, software, and product teams to enable partner delivery.

Lead long-term technical strategy and execution across multiple teams, architecting and evolving foundational frontend/backend systems and platforms at massive scale. Drive AI/ML adoption, solve ambiguous, high-impact problems, remain hands-on in critical system design and implementation, and align senior leaders on roadmaps and engineering standards.

Lead Salesforce architecture and technical delivery for enterprise projects, focusing on Marketing Cloud and Financial Cloud. Design integrations and SOA components, develop Apex/Visualforce/Lightning solutions, manage data model and APIs, and provide technical leadership to break solutions into executable work.