Top Principal Engineer Jobs in Boston, MA

Own the architecture, technical direction, quality, and long-term support of SharkNinja’s consumer mobile application. Build hands-on with React Native, Expo, and TypeScript; design connected-device experiences, pairing flows, protocols, and real-time synchronization; and support BLE and WiFi reliability. Establish reusable patterns, libraries, testing, and release practices, lead architectural research, mentor engineers, collaborate with global teams, and onboard new products to the app.

Lead research, architecture, and production development of hardware formal verification tools enhanced by agentic AI. Build formal verification algorithms, multi-agent systems, solver orchestration, RTL analysis, automated SystemVerilog Assertion generation, and high-performance C/C++ implementations for commercial EDA suites. The role requires deep expertise in formal methods, hardware verification, AI frameworks, RTL languages, and 15+ years developing advanced EDA tools.

Architects scalable distributed systems and low-level cloud platform services, establishes engineering standards and SLOs, designs CI/CD and deployment safety pipelines, leads complex incident escalations and postmortems, and mentors engineering teams. The role requires full-stack, API, and microservices development in Linux or Unix environments, strong SRE expertise, architectural leadership, and US citizenship with eligibility for security clearance.

Design and evolve distributed search and analytics systems for the Splunk platform. Lead complex engineering efforts from design through delivery, improve performance and reliability, mentor engineers, collaborate cross-functionally, and work with customers to resolve production issues.

Owns commissioning and production readiness for a high-volume advanced materials manufacturing line. Responsibilities include designing material flows, defining process windows and equipment parameters, implementing MES, SCADA, and SPC systems, establishing QA/QC controls, qualifying equipment, investigating nonconformances, driving corrective actions, supporting production, and mentoring technical staff. The role translates novel materials processes into controlled, repeatable manufacturing while leading continuous improvement during an aggressive production ramp.

Leads complex mechanical and electromechanical product development from concept through manufacturing. Sets technical direction, develops designs using Creo or SolidWorks, builds and tests prototypes, conducts analyses and verification, and applies DFM, DFA, cost, and reliability principles. Leads multidisciplinary teams, mentors engineers, supports client engagements and proposals, manages technical risks, and communicates design tradeoffs to clients and stakeholders.

Leads supplier quality for high-reliability printed wiring boards by conducting audits, capability assessments, source inspections, first article inspections, and process evaluations. Analyzes supplier metrics and defects, drives root-cause and corrective-action efforts, reviews PPAP and FAI submissions, and leads continuous improvement toward zero defects. Partners with quality, category management, and supply chain teams while providing technical guidance on PWB standards, manufacturing processes, testing, and acceptance requirements. The remote role requires approximately 50% travel to suppliers across the country.

Build and own Arcadia’s internal developer platform across a large-scale data lakehouse and Kubernetes applications. Develop self-service APIs, templates, golden paths, CI/CD capabilities, observability, security controls, and reliability practices. Lead platform migrations, improve developer experience, manage stakeholder needs and costs, set technical direction, and coach senior engineers. The role requires hands-on software development alongside expertise in cloud infrastructure, Kubernetes, networking, infrastructure as code, SLOs, incident response, and platform product management.

Leads process hazard analyses, layer of protection analyses, and PSM/RMP compliance audits for complex client projects. Facilitates HAZOPs and other PHA methods, interprets process drawings, prepares technical deliverables, ensures quality, and provides engineering leadership. Manages project scope, schedules, budgets, staff assignments, and client relationships while mentoring engineers, supporting business development, and identifying process safety improvements.

Designs transistor-level mixed-signal CMOS circuits for advanced data converters, including amplifiers, comparators, switched-capacitor circuits, voltage and current references, and LDOs. Develops behavioral models, collaborates on architecture and layout, documents designs, conducts reviews, and supports hands-on laboratory evaluation. Requires strong circuit-design expertise, Cadence and SPICE experience, MATLAB modeling skills, and effective teamwork.

Own the B2B eCommerce platform end to end, delivering customer and internal commerce features across Next.js, React, TypeScript, Python, GraphQL, REST, and Azure services. Build production AI agents and LLM features using Claude technologies, operate cloud infrastructure with Terraform and CI/CD, improve observability and security, and resolve production issues. Serve as the technical owner for commerce architecture, core purchasing flows, integrations, database performance, and engineering quality while partnering with business stakeholders.

Leads the mechanical engineering domain for robotic recovery products, owning mechanical architecture, system integration, design, analysis, prototyping, validation, cost reduction, manufacturability, and production transfer. The role establishes CAD, FEA, tolerance, and design-review standards; partners with electrical, firmware, controls, suppliers, and contract manufacturers; mentors engineers; and supports technology roadmaps. Regular travel to the NYC office and supplier or manufacturing engagements, including international travel, is required as needed.

Lead end-to-end mechanical design and production scale-up for complex robotic modules. Develop electromechanical architectures, components, assemblies, and mechanisms optimized for reliability, manufacturability, cost, and high-volume production. Apply DFM/DFA, tolerance analysis, GD&T, materials and structural design expertise. Collaborate with engineering, manufacturing, quality, tooling teams, suppliers, and contract manufacturers to validate designs, resolve production issues, and transition products from prototypes through full-scale manufacturing. Provide technical leadership and establish scalable mechanical design standards.

Lead high-frequency PCB, backplane, cable, and flex-circuit design for rugged defense and first-responder applications. Own PCB design and layout using Cadence Allegro, conduct design reviews, establish CAD rules, support fabrication vendors, improve processes, and contribute to technology roadmaps and design experiments. Collaborate with systems, signal integrity, mechanical, software, and purchasing teams across multiple locations.

Provides senior engineering leadership for community-scale climate resilience. Assesses building, infrastructure, and natural-hazard vulnerabilities; develops performance-based mitigation recommendations; translates physical risk into modeling assumptions and insurance criteria; evaluates verified loss reduction; and guides implementation with property owners, communities, governments, utilities, underwriting, analytics, and catastrophe modeling teams. Requires expertise in natural catastrophe perils, building performance, construction, retrofits, and risk reduction.

Leads mechanical product development teams, mentors 3–15 engineers, supports complex technical projects, solves difficult design challenges, and coaches teams on project management, proposals, statements of work, and budgets. Collaborates with multidisciplinary teams and manufacturing partners to develop products from concept through production using varied manufacturing processes and CAD tools.

As a Principal Engineer - Steam Turbine, you will lead steam turbine engineering activities, mentor junior engineers, and support business development efforts while participating in client meetings and conferences.

Leads the design, implementation, integration, and optimization of global enterprise Finance solutions. Responsibilities include ERP solution leadership, Finance process transformation, system integration, data migration, reconciliation, testing, quality governance, deployment readiness, and post-production stabilization. The role also identifies AI automation opportunities and develops governed AI-enabled solutions across ERP, data, API, and workflow platforms while advising Finance, Product, Architecture, and Engineering stakeholders.

Design, develop, deploy, and operate cloud-scale Azure regional networking infrastructure spanning router hardware, operating systems, optical transceivers, and distributed orchestration systems. Lead architecture and cross-team technical initiatives, write maintainable code, improve reliability, observability, performance, and automation, apply AI-driven engineering practices, and mentor engineers while collaborating with hardware, supply chain, datacenter operations, research, vendors, and senior leaders.

Set technical direction for enterprise platform services supporting licensing, entitlements, account administration, onboarding, provisioning, notifications, and partner workflows. Design secure, scalable multi-tenant architectures and lead cross-team technical initiatives from ambiguity to implementation. Improve reliability through observability, testing, safe deployments, incident learning, and operational documentation. Contribute hands-on through design and code reviews, mentor senior engineers, and influence engineering, product, and business stakeholders.

Design, build, and operate resilient AWS cloud infrastructure, Kubernetes platforms, CI/CD pipelines, and infrastructure-as-code modules in a regulated medical-device environment. Improve security, scalability, performance, cost efficiency, deployments, and operational support. Collaborate with Engineering, QA, IT, and Security teams while troubleshooting distributed systems and providing technical leadership across global teams.

Own the architecture, implementation, and operational excellence of major Azure Boost DPU software components. Develop low-level systems software spanning operating systems, virtualization, networking, storage, device management, and hardware interfaces. Lead complex cross-functional initiatives, optimize hyperscale performance and reliability, resolve system-level issues, establish engineering practices, influence platform architecture, and mentor engineers across Azure infrastructure teams.

Leads hands-on modernization of Pearson’s content platform, including large-scale migrations, shared platform services, APIs, AI capabilities, cloud infrastructure, security, reliability, and technical roadmaps. Designs and delivers complex systems, writes production code, resolves high-impact incidents, evaluates technologies, and establishes engineering standards. Mentors senior engineers, influences cross-functional stakeholders, and drives initiatives from exploration through launch while balancing scalability, cost, maintainability, and risk.

Lead the architecture and technical direction of Forward Financing’s core fintech platform. Design scalable distributed backend systems, guide cross-team initiatives, establish engineering best practices, resolve incidents, and mentor engineers. The role owns the technical roadmap and architectural vision while partnering across teams to improve reliability, observability, code quality, and delivery. Ruby on Rails expertise is required, along with strong communication, influence, agile development experience, and a broad backend or full-stack perspective.

Provides technical leadership for architecture and evolution of large-scale distributed data platforms supporting Azure network telemetry. Designs streaming and batch systems, establishes reusable engineering patterns, drives cross-team technical strategy, and owns capabilities from design through production operations. Ensures scalability, reliability, security, performance, data quality, and operational excellence while mentoring engineers and influencing technical leaders. The role also involves architectural reviews, dependency management, risk reduction, and applying AI or machine learning approaches to operational systems.