Top Principal Engineer Jobs in Boston, MA

Lead multi-year technical vision and architecture for Payments, Scheduling, Forms, RCM and mobile platforms. Drive cross-team solutions, evaluate build-vs-buy, mentor senior engineers, set company-wide engineering standards, and ensure scalability, reliability, and observability for high-throughput distributed systems.

Principal Frontend Engineer responsible for architecting and maintaining a high-performance, real-time trading web application using React, Next.js, TypeScript, and Jotai. The role owns frontend features, optimizes mobile performance, manages real-time data and WebSockets, ensures code quality, and partners with founders and leadership on technology, product, and feature decisions. Experience building interactive trading platforms, particularly in DeFi, is required.

Leads the architectural vision and hands-on development of Ford Pro Intelligence’s large-scale SaaS platforms, APIs, data pipelines, and web applications for fleet telematics. The role provides technical leadership across teams, mentors engineers, translates business needs into scalable designs, scopes enterprise initiatives, improves engineering standards, and serves as the technical escalation point for critical incidents. Key technologies include Kotlin, Spring Boot, React, PostgreSQL, Redis, and GCP services.

Lead photolithography process engineering and team for wafer fabrication. Responsibilities include optimizing processes, troubleshooting, and collaborating on tech development.

The Engineering Director will lead and manage the cloud infrastructure and developer enablement, focusing on AI-native systems, team development, and security operations.

As a Senior+ Engineer, you will lead the design and architecture of impactful open-source projects while mentoring teams, coding, and engaging with the community.

The Client Engine Software Engineer will design and implement complex client-side engines using advanced algorithms, focusing on high-performance and fault-tolerance in a remote team environment.

The Principal Engineer for Customer Quality acts as the key customer contact for quality issues, addressing complaints, and driving continuous improvement. This role requires collaboration with multiple teams to establish quality standards and facilitate customer audits, while managing quality performance and supporting product lifecycle decisions.

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.

Build Quince’s greenfield, AI-native supply chain planning platform from architecture through production. Own forecasting and optimization model pipelines, experimentation, deployment, monitoring, operator tooling, integrations, and AI-augmented workflows. Partner with scientists, planners, business leaders, and distributed engineering teams to translate supply chain needs into scalable systems. Set technical direction, establish engineering standards, and recruit and develop a high-performing team.

ABCorp is looking for a Principal Software Engineer to lead the technical direction of their Client Experience Platform, overseeing frontend, backend, and data architecture while mentoring engineers and collaborating with Product and UX teams.

Lead a full-stack product team to build secure financial and card issuance SaaS solutions while ensuring system reliability and compliance in a regulated environment.

Lead architecture, design, and delivery of custom manufacturing equipment. Translate process requirements into mechanical systems, make build-vs-buy decisions, prototype and deploy hardware, and establish practices for in-house equipment development while mentoring a growing team.

The Principal Motion Planning Engineer will lead algorithm development for motion planning in autonomous vehicles, manage projects, and mentor team members.

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 strategic design and technical delivery for large-scale VMware Cloud Foundation programs. Develop high- and low-level designs for complex multi-site environments, plan hybrid-cloud integrations and migrations, define security and compliance standards, create reference architectures, support customer and executive engagements, resolve escalations, and mentor senior engineers. The role requires deep VMware expertise across vSphere, vSAN, NSX, and Aria, with training provided for broader VCF specialization.

Leads New Jersey environmental investigation, remediation, compliance, and engineering projects while growing an established client book. Serves as a senior technical leader and seller-doer, overseeing proposals, pricing, project delivery, financials, regulatory coordination, technical reports, remedy evaluation, and client relationships. Provides technical oversight, mentors staff, supports recruiting, and partners with an LSRP on NJDEP alignment and project strategy.

Designs analog and digital electronic hardware for fire alarm products, including embedded systems, power supplies, sensors, interfaces, and networking. Leads cross-functional hardware development from requirements through manufacturing, managing technical execution, cost, schedule, compliance, and system architecture. Collaborates with Product Management and engineering teams, evaluates emerging technologies, improves engineering processes, and ensures products meet UL, ULC, CE, and FCC standards.

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.

Lead design and build of production-ready cloud and AI systems, prioritize security and reliability, ship solutions quickly using modern engineering practices, collaborate with cross-functional teams, mentor engineers, drive customer adoption, and deliver reusable assets and end-to-end complex deliveries.

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

Own cross-team, platform-level engineering initiatives end-to-end: architecture, migrations, observability, on-call, and customer outcomes. Drive AI-native tooling and agentic AI adoption, mentor senior engineers, and set technical standards across teams.

Lead design and implementation of VaiDA mobile experiences: own architecture, build secure and performant native iOS/Android apps, integrate with AI/back-end services, ensure usability and accessibility, manage signing/provisioning and enterprise deployments (Intune), define testing and release standards, and collaborate across product, design, and engineering teams.