Top Principal Engineer Jobs in Boston, MA

The Principal Front-Office Engineer will lead the design and implementation of AI-driven solutions in investment strategies, collaborating with analysts to enhance toolsets and reporting systems.

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.

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

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

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

Lead design, development, and deployment of production-grade AI systems (LLM apps, retrieval pipelines). Own technical direction, ensure scalability, reliability, security, and responsible AI. Drive MLOps, model evaluation, monitoring, and mentor engineers while partnering with product and business stakeholders.

The Principal Packaging Engineer will oversee lab operations, manage packaging development projects, ensure compliance with standards, and provide strategic direction to teams.

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.

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.

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.

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.

Lead Android migration and launch across Cash Line and Unsecured Installment products. Define mobile architecture, partner with product/design, mentor engineers, deliver high-quality native Android and React Native solutions, and continue as a mobile specialist post-launch to improve performance and scalability.

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.

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

Lead technical pre-sales and strategic advisory for Zero Trust Cloud solutions across hybrid and multi-cloud environments. Drive Proof-of-Value engagements, collaborate with sales, SEs, and product teams, influence product roadmap, and present Zero Trust strategies to technical and executive stakeholders to accelerate regional GTM.

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

Lead technical architect and hands-on principal engineer for the SOC Experience team, building scalable investigation workflows, agentic LLM features, automation, remediation actions, and analyst tooling. Drive architecture, mentor engineers, prototype solutions, ensure reliability and observability, and partner with product, UX, and SOC stakeholders to turn operational problems into auditable, production-grade systems.

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

The role involves leading security initiatives, building security tools, conducting vulnerability assessments, and collaborating with teams to enhance cloud security and risk management.

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.

Lead the design and execution of a new enterprise data platform, ensuring metrics reliability and supporting AI-driven products, while mentoring engineers and collaborating across teams.

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.

As a Principal Data Engineer, you will design and implement LLM, AI-powered security data platforms, mentor engineers, and drive the adoption of data solutions across teams.