Top Principal Engineer Jobs in Boston, MA

Lead architecture, development, optimization, validation, and production deployment of reusable audio DSP components across multiple product platforms. Translate MATLAB/Simulink algorithms into optimized C/C++ for embedded DSPs and processors, guide fixed- and floating-point implementations, perform hardware bring-up and lab debugging, and establish validation and engineering standards. Mentor engineers and provide technical direction across distributed, cross-functional teams.

Own the implementation, hardening, and polish of game AI behaviors and systems for shipping. Collaborate with design, animation, and other disciplines to tune AI features and support the creative vision. Ensure reliable, stable enemy behaviors and enhance existing architecture. The role requires deep Unreal Engine and modern game AI experience, strong C++ skills, animation systems knowledge, and at least one shipped game title focused primarily on AI.

Lead the mobile engineering team in evolving iOS and Android applications toward an AI-native, thin-client architecture. Define participant API and platform direction, contribute Python to backend services, establish AI-assisted development processes, improve DevOps and continuous delivery, mentor engineers, and partner closely with Product and Design. The role requires principal-level technical leadership, product focus, system architecture expertise, and hands-on use of AI coding agents.

Provides technical leadership on complex, high-impact engineering projects from design through launch. The role involves architecture, company-wide initiatives, engineering excellence, mentoring technical leaders, and establishing standards for scalable, reliable, secure, observable systems. The engineer will collaborate across teams, communicate complex technical topics, and apply customer-focused decision-making and A/B testing techniques.

The Principal Engineer will lead the design and delivery of core platform capabilities, focusing on scalable systems, AI application, and mentoring engineers while driving architectural decisions and improving operational systems.

Principal Engineer serving as the CTO’s technical deputy, leading day-to-day engineering execution, architecture, code reviews, developer support, and delivery. The role requires hands-on full-stack development across databases, backend, frontend, cloud infrastructure, and DevOps. It also champions AI-agent-assisted development by establishing workflows, guardrails, and quality standards. The engineer will mentor teammates, resolve technical blockers, improve reliability and documentation, and collaborate with technical, product, and research stakeholders.

Leads the architecture and hands-on implementation of connected firmware platforms, including wireless connectivity, embedded UI, provisioning, pairing, and app/cloud integration. Defines technical standards, reviews internal and partner designs, supports wireless certifications, and resolves interoperability issues. Establishes testing, build, coding, and reproducibility standards while mentoring engineers and influencing cross-functional technical direction. Requires deep embedded C/C++ expertise, connected-device architecture experience, wireless certification knowledge, and a track record in consumer electronics, IoT, robotics, or related high-volume products.

Leads architecture, reliability, and automation for cloud network foundations across AWS, GCP, Azure, and internal infrastructure. Designs routing, segmentation, firewalls, connectivity, access, and infrastructure-as-code systems; establishes SLOs, monitoring, incident response, and recovery practices. Builds reusable automation, improves change safety, partners across platform, security, IT, and engineering teams, serves as a senior escalation point, creates operational standards, and mentors engineers.

Designs, implements, and improves secure, scalable Microsoft Azure solutions, including landing zones, networking, identity, governance, infrastructure automation, CI/CD, monitoring, and hybrid connectivity. Leads complex cloud initiatives, establishes architecture and engineering standards, troubleshoots incidents, optimizes reliability and costs, develops operational practices, mentors engineers, and collaborates with technical and business stakeholders on modernization and platform adoption.

Provides hands-on technical leadership for robotic inspection systems, owning systems engineering, architecture, integration, verification, troubleshooting, and production transition. Leads multidisciplinary teams across mechanical, electrical, controls, embedded computing, sensing, and software; manages requirements, interfaces, trade studies, testing, manufacturing readiness, field demonstrations, and technical risk. Mentors engineers and supports proposals, customer engagements, intellectual property, and technology roadmaps.

Lead technical design and delivery of mission‑critical embedded digital hardware from concept through production. Architect high‑speed, ruggedized systems (FPGAs, secure processors, DDR5, PCIe, 400G Ethernet), drive verification, mentor teams, and advise leadership on technical risk, cost, and schedule for defense/aerospace products.

Develops scalable quantitative investment technology supporting alpha research, portfolio construction, risk management, and systematic strategies. Builds full-stack Python and database solutions, quantitative models, data pipelines, APIs, cloud infrastructure, batch workflows, and CI/CD systems. Partners with quantitative researchers and investment teams to deliver production-ready solutions. Preferred experience includes MLOps, machine learning, generative AI, optimization libraries, and responsible AI practices.

Develop and evaluate signal processing, image processing, machine learning, and computational algorithms for ultrasound-enabled medical devices. Implement real-time software, analyze bench, preclinical, and clinical data, validate algorithms, assess technical feasibility, and guide design decisions. Collaborate with engineering, clinical, design, and research teams while providing technical leadership and mentorship in algorithm development for cardiac electrophysiology applications.

Leads the design, engineering, administration, and support of enterprise LAN and WAN networks. Resolves complex networking issues, performs root-cause analysis, develops network designs and Visio documentation, oversees data communications projects, and evaluates emerging technologies. The role coordinates technical project phases, collaborates with IT teams, mentors engineers, maintains networking policies and inventory, and communicates with senior management. Expertise in routing, switching, cloud networking, and F5 load balancers is required.

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.