Top Principal Engineer Jobs in Boston, MA

Lead design and delivery of flight-critical power electronics for the X-BAT aircraft, including inverters, DC-DC converters, and battery management. Own full hardware development cycle, drive PCB layout, harden designs for harsh environments, mentor engineers, lead reviews, and manage program timelines through production.

Architect and implement enterprise GenAI platforms (RAG and agentic systems), design knowledge retrieval, orchestration, tool-using agents and human-in-the-loop workflows, ensure production readiness and governance with product/data/security teams, define platform engineering best practices, and solve complex platform challenges with broad autonomy.

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.

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

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.

Lead design and build of scalable backend systems and data platforms; own architecture and production deployments; improve reliability, performance, and observability; mentor engineers and collaborate with Product, Data Science, SRE, and Security.

Lead design, development, and maintenance of cloud-hosted Claims and Policy Center applications. Collaborate with distributed engineers, architects, and vendors in an agile environment to improve performance, solve complex system problems, enforce technical standards, and implement secure, scalable microservice and event-driven solutions using modern web frameworks and cloud technologies.

The Principal SAP PaPM Configuration Engineer analyzes and configures use cases, supports production users, and mentors team members to enhance SAP PaPM systems within the finance environment.

Lead and deliver complex automation engineering projects with minimal supervision. Ensure regulatory compliance, risk-managed design, cost/schedule control, and cross-functional alignment. Design experiments, develop technical solutions, perform feasibility and economic analyses, mentor engineers, and represent technical expertise externally. Support product/process improvement and may influence validation strategy. Travel required (20-30%).

Lead architecture, deployment, and integration of VMware Cloud Foundation solutions; act as technical advisor on VMware SDDC (vSphere, vSAN, NSX-T); develop VCF Automation and Operations service offerings; lead engagements, mentor engineers, produce reusable assets, and support sales with proposals and solution design.

Lead architecture and implementation of a scalable data lakehouse and streaming platform. Define technical strategy, build resilient systems, optimize performance, mentor engineers, and partner across teams to enable analytics and ML use cases using modern data platform technologies.

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.

Hands-on technical leader and core individual contributor building cloud-native defense/intelligence software. Drive architecture, code reviews, feature delivery, and mentor a small Agile team while implementing DevOps, CI/CD, and robust AWS/EKS-based deployments.

The Principal Cloud Support Engineer at Wasabi leads technical support, mentors engineers, resolves complex issues, and advises enterprise clients, focusing on cloud storage solutions.

The Principal AI/ML Engineer will develop machine learning models for campaign optimization in AdTech, collaborating across engineering and product teams to enhance advertising capabilities.

Design, develop, and maintain software applications and databases for business environments, collaborating with IT and various business units to support investment systems.

Lead architecture and implementation of AI-powered scientific products end-to-end. Design data models, APIs, deployment, observability, and maintainability. Collaborate with scientists and ML researchers, make high-stakes technical decisions, bridge research and production ML, and occasionally direct embedded contractors while owning technical output and quality.

Lead the Streaming Systems team, building high-throughput, low-latency infrastructure for real-time computation on billions of events. Mentor engineers and solve complex scaling challenges directly affecting marketing AI products.

Lead design, programming, testing, commissioning and troubleshooting of upper-level automated sortation controls. Provide technical leadership, mentor junior engineers, develop modular PLC/HMI code, review electrical designs, coordinate vendors/customers, support site commissioning and system acceptance testing.

The Principal Developer will lead the technical direction of the Exposure Management product area, contribute to architectural decisions, mentor engineers, and ensure high engineering standards across teams.

Design and architect cloud-first, full-stack, scalable SaaS products; provide technical leadership, mentor engineers, promote automated testing and CI/CD, integrate AI/ML features (LLM/RAG), ensure observability and security, and collaborate with product, operations, and support.

Lead and build an ML Acceleration team to define strategy and implement scalable solutions to speed ML training. Hands-on role combining technical design (distributed training, hardware and model optimization) with people management, cross-functional collaboration, impact measurement, and continuous performance improvements for production autonomous vehicle ML systems.

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 DevOps Engineer will lead the design and operation of CI/CD pipelines, platform reliability, and compliance for software deployment, while influencing DevOps practices and simplifying operational management across teams.