Top Principal Engineer Jobs in Boston, MA

Serve as technical authority for mixed-signal IC architecture and design, lead complex projects from concept to production, integrate analog and digital IP, drive methodology innovation, mentor engineers, and influence product and technology roadmaps.

Lead design and delivery of flight-critical power electronics for the X-BAT aircraft, including inverters, DC-DC converters, and battery management. Own full hardware development cycle, drive PCB layout, harden designs for harsh environments, mentor engineers, lead reviews, and manage program timelines through production.

Lead architecture, development, and validation of end-to-end aircraft fuel systems. Drive cross-functional integration, system-level modeling (CFD), verification, supplier qualification, ground and flight test support, anomaly root-cause analysis, and mentor engineering teams while contributing to long-term fuel-system technology roadmaps.

Lead architecture and evolution of an enterprise Kubernetes platform across cloud and on-premises. Define platform roadmap, standards, and automation; design multi-cluster/multi-region solutions; implement GitOps, IaC, observability, security, and resiliency practices; mentor engineers and drive cross-functional platform initiatives for reliability, scalability, and developer experience.

Lead design and build of scalable backend systems and data platforms; own architecture and production deployments; improve reliability, performance, and observability; mentor engineers and collaborate with Product, Data Science, SRE, and Security.

Design and build polished frontend experiences and workflow visualizations for VaiDA, Vertex's enterprise AI platform. Lead UX engineering strategy, prototype and implement interaction designs, develop reusable UI components and design standards, collaborate across product/AI/backend teams, advocate usability and accessibility, and mentor engineers to scale intuitive, data-rich multi-agent workflows for thousands of employees.

Senior technical leader for fraud platforms responsible for architecture, resiliency, and scalable designs. Hands-on coding, solution decomposition, CI/CD, observability, test automation, incident RCA, and guiding multiple Agile teams for platform modernization and operational excellence.

Lead design, development, and maintenance of cloud-hosted Claims and Policy Center applications. Collaborate with distributed engineers, architects, and vendors in an agile environment to improve performance, solve complex system problems, enforce technical standards, and implement secure, scalable microservice and event-driven solutions using modern web frameworks and cloud technologies.

Lead and deliver complex automation engineering projects with minimal supervision. Ensure regulatory compliance, risk-managed design, cost/schedule control, and cross-functional alignment. Design experiments, develop technical solutions, perform feasibility and economic analyses, mentor engineers, and represent technical expertise externally. Support product/process improvement and may influence validation strategy. Travel required (20-30%).

Lead architecture and technical direction for an AI-first SaaS product (Growth Studio). Define scalable services, APIs, data flows, and AI-enabled workflows; guide integrations, run architecture/code reviews and POCs; mentor engineers; produce technical documentation; and partner with product, UX, QA, and ops to deliver reliable, secure, and maintainable platform capabilities for GovCon customers.

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.

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

Lead development, integration, and qualification of semiconductor processes; drive yield, defect reduction, and cost optimization using DOE/SPC and data analytics; enable NPI transition to high-volume manufacturing; lead failure analysis and reliability efforts; collaborate with design, manufacturing, and foundry partners and mentor engineering staff.

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.

Build and maintain ZODL's core Rust-based wallet and infrastructure (Zallet and core libraries). Implement protocol features from specifications, improve performance and reliability, support mobile teams, participate in reviews, testing, releases, and respond urgently to bugs and security issues.

Lead design and architecture of cloud-first, full-stack enterprise software. Provide technical leadership, mentor engineers, promote automated testing and CI, improve scalability, troubleshoot issues, and deliver complex projects on time.

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 technical design and hands-on development of low-latency, event-driven trading and market data platforms. Drive architecture, engineering standards, CI/CD, observability, and AI-assisted tooling; collaborate with product and solution teams; mentor engineers; ensure resilient, secure, cloud-native solutions aligned with enterprise strategy.

Technical lead embedded with Investment Strategy & Capital Management to design and build full‑stack applications, productionize AI prototypes, enhance analytics and reporting, and partner with investment teams. Hands‑on architecting, iterating, and scaling data‑rich systems using Python and SQL in a hybrid Boston environment.

Technical lead embedded with investment teams to design, prototype, and productionize AI-enabled full‑stack applications for fixed income and investment analytics. Build scalable systems, partner with analysts, write robust Python code, develop front-end visualizations, and integrate Bloomberg/financial data into production workflows.

Design and build production-grade applications, tooling, and data pipelines to support portfolio construction, asset allocation analytics, and quantitative research. Convert AI prototypes into robust full‑stack solutions, contribute to shared quantitative libraries, and maintain dashboards and production systems to support investment decision‑making.

The Principal Engineer will shape the technical strategy for messaging infrastructure, influence architectural decisions across teams, and solve complex technical problems. Responsibilities include mentoring engineers, driving coherence across teams, and leading initiatives to ensure Weave's competitiveness in messaging solutions.

Lead design and delivery of a cloud-native BaaS payments platform. Architect scalable distributed systems, define API contracts, drive CI/CD and TDD practices, mentor engineers, reduce technical debt, and partner with product teams.

Lead architecture, design, and delivery of PET product features; write production full‑stack code; champion testing, observability, CI/CD and operational readiness; mentor engineers and collaborate with product to shape technical roadmap.

The Principal Engineer will lead the technical ecosystem, ensuring hands-on execution in a high-growth environment, focusing on AI integration and full-stack development.