Top Principal Engineer Jobs in Boston, MA

Define and drive the multi-year roadmap for audit logging, SIEM integration, and unified security visibility. Architect high-throughput, fault-tolerant Go/gRPC pipelines (Kafka/Flink), build customer-facing security dashboards and integrations, ensure compliance-grade immutable logs, set org-wide logging and observability standards, partner across platform teams, and mentor senior engineers while authoring RFCs.

The Principal Engineer will lead the engineering team in building systems across full stack, improving development efficiency, and expanding products in new markets.

The Principal Engineer will lead technical direction and execution for identity and engagement platforms, modernize systems, and mentor engineers, driving high-quality delivery and collaboration across teams.

Lead the engineering architecture for an AI-driven product, focusing on system design, collaborating with AI agents, and ensuring quality and scalability in large-scale SaaS environments.

Lead the rearchitecture and implementation of Arcadia's User Management system, focusing on authentication and authorization frameworks. Drive new systems and mentor engineers to ensure secure data access and operational excellence.

The Senior Kubernetes Engineer will manage and enhance Kubernetes clusters, automate deployments, ensure security, and collaborate with teams to deliver reliable containerized applications.

As a Principal Engineer for Core Infrastructure at Klaviyo, you will architect and enhance the Kubernetes platform and CI/CD pipelines, improve developer velocity, and ensure operational excellence while incorporating AI tools for automation and incident response.

The Principal Developer Productivity Engineer will enhance GM's developer tools, mentor engineers, and drive system performance through observability and software engineering best practices.

The Principal Software Development Engineer will lead architectural strategy for Ads Intelligence solutions, collaborating with cross-functional teams to build scalable products and mentor engineers.

This role involves designing and developing core modules for an enterprise-level clinical data platform, ensuring compliance with quality standards, and collaborating with teams for software development and testing.

Lead architecture and evolution of an enterprise Kubernetes platform across cloud and on-premises. Define platform roadmap, standards, and automation; design multi-cluster/multi-region solutions; implement GitOps, IaC, observability, security, and resiliency practices; mentor engineers and drive cross-functional platform initiatives for reliability, scalability, and developer experience.

The Principal Software Engineer will lead architectural strategy and product development, mentor engineers, and collaborate across teams in an interdisciplinary setting.

Lead design and implementation of RF hardware systems, collaborating with teams on system requirements and hardware designs, while supporting assembly, integration, and testing.

The role involves developing advanced signal processing algorithms, leading projects, engaging with customers, and supporting business development initiatives. Requires deep technical knowledge and leadership in radar and electronic warfare solutions.

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.

Develop and implement AI validation methodologies, enhance application performance, collaborate with Agile teams, and lead AI testing efforts for healthcare products.

The Principal AI Engineer will design AI-powered workflows, partner with stakeholders, and build production-level systems in a cross-functional environment.

The Principal Front-End Engineer will enhance the Growth team's platform and infrastructure by developing tools, managing applications, and ensuring a high-quality user experience across projects.

Design, implement, and standardize robotics control solutions (PLC/HMI/SCADA/motion) for GMP manufacturing, lead FAT/SAT/commissioning, support validation and integration with IIoT/digital systems, manage vendors and projects, mentor staff, and ensure compliance with GxP/GAMP and data integrity. Travel up to 25% to support global project execution.

The role involves designing and enhancing database engine components, optimizing algorithms, and maintaining programming language support, requiring extensive experience in low-level system code development.

The Principal Engineer will lead Babel Street's API and MCP platform strategy, designing agent-ready APIs and managing cross-team technical initiatives, ensuring the API-first platform is optimized for AI interactions and developer usability.

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

The Principal SDET will lead automation framework development, mentor teams, drive migration to modern testing solutions, and collaborate across engineering teams to enhance quality and efficiency.

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

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.