Top Principal Engineer Jobs in Boston, MA

Lead design and build of an AWS-only AI Operations platform: hosting, IaC, registries (Accountability, Agent, Tool), identity/authorization patterns, developer DX, observability, and security hooks for agentic systems. Evangelize internally and partner on compliance and security integrations.

Build internal AI operations infrastructure and tools (knowledge systems, agent-builder UIs, dashboards, catalogs). Design data flows and decide centralization vs decentralization. Create discoverable, governable surfaces for teams to compose and trust agents. Run a portfolio of small internal products, prioritize requests, and ship production code while partnering with a technical infrastructure counterpart.

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

As a Principal Hardware Engineer, you'll design scalable hardware systems for automation in fulfillment operations, integrating hardware with software through a collaborative approach.

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 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.

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.

The Principal Full Stack Software Engineer will design, develop, and mentor teams in building scalable web applications, influencing architecture and engineering standards in AI and cloud technologies.

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.

The Principal Software Engineer will design AI-native systems, set standards for development processes, lead engineering practices, and deliver autonomous workflows to enhance business outcomes in wealth management technology.

Lead and mentor an engineering team building GovIntel and GovChannel product capabilities. Own technical direction, design and deliver scalable SaaS features, APIs, integrations, and platform reliability. Partner with Product, QA, Cloud Ops, and stakeholders to prioritize work, drive CI/CD and observability practices, lead reviews and incident response, and apply AI-assisted tools to improve development speed and quality.

The Security Engineering Manager oversees IT security policies, manages incident response, tracks threats, engages with IT teams, and provides regular incident reporting.

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.

The Senior Data Scientist will design and implement AI-enabled products using clinical trial data, mentor team members, and collaborate with stakeholders.

The Principal Consulting Engineer will implement and support IP-based call center solutions, guide project strategies, and provide technical leadership while collaborating with clients and stakeholders to achieve project goals.

The Principal Signal Processing Engineer will lead the development and application of algorithms for RF sensing, engage with customers, guide teams, and drive business development.

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

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.

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

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 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 Principal Quantitative Engineer will lead the design and implementation of applications for portfolio construction and asset allocation, collaborating closely with quantitative analysts to convert AI prototypes into production-ready applications.

Build, operate, and secure cloud-native and edge infrastructure including Kubernetes, artifact pipelines, application streaming, and air-gapped appliances. Partner with product, GRC, and mission owners to design, deploy, and harden systems, remediate vulnerabilities, support audits (IL5/IL6/JWICS), and ensure trusted artifact delivery across environments.