Top Principal Software Engineer Jobs in Boston, MA

Lead technical direction for Surety underwriting platform modernization using React, NestJS, TypeScript, and AWS. Design scalable systems, guide architecture and technical decisions, translate business needs into solutions, support contractor-led delivery teams, improve engineering quality, and mentor engineers. Collaborate with product, engineering, solution, and delivery teams in an ambiguous enterprise environment while balancing hands-on technical work with broader technical leadership.

Provides technical leadership across Customer Care Engineering by setting technology vision, defining architectural strategy, and guiding scalable, resilient, AI-enabled platforms. Leads cross-organizational modernization initiatives, distributed systems and cloud architecture, AI integrations, engineering standards, and complex technical decisions. Partners with engineering, product, data science, and business leaders; mentors senior engineers; manages technical risk and dependencies; and translates ambiguous business needs into executable strategies and measurable outcomes.

Serve as a hands-on cloud architect for the Engineering Platform organization. Design AWS-based system architectures, build Terraform and application prototypes, establish reusable cloud-native patterns, and guide SaaS maturity, security, compliance, resilience, cost management, and AI workloads. Partner with engineering teams and AWS architects, improve self-service infrastructure and governance, document technical decisions, influence technical direction, mentor senior engineers, and lead cloud-native workshops.

Owns company-critical, long-term technical problems across multiple teams and organizations. Defines technical strategy, architectures, roadmaps, and engineering standards for large-scale customer-facing systems. Remains hands-on in software development while driving AI adoption in products and engineering workflows. Partners with senior product, engineering, and executive leaders to resolve complex problems, improve reliability and performance, and shape Dropbox’s technical direction.

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.

Leads architecture, technical direction, and hands-on development of robotic manipulation software. Develops motion planning, kinematics, control, multi-arm coordination, simulation, hardware integration, and distributed-system interfaces. Oversees testing, deployment, production support, troubleshooting, design reviews, and engineering standards while mentoring engineers and coordinating with multidisciplinary teams.

Provides technical leadership for real-time, high-throughput trading and market data platforms supporting institutional public-markets workflows. Designs low-latency, event-driven, API-first architectures; establishes engineering standards; leads design reviews; promotes CI/CD, testing, observability, and responsible AI use; collaborates with product and architecture stakeholders; and mentors engineers. Requires strong Python and AWS experience, distributed-systems expertise, and familiarity with regulated financial services.

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.

Designs and develops Go microservices, Kubernetes controllers, and Linux networking software for HPE enterprise storage systems. Builds highly available distributed services, automates data-center network switch management and upgrades, develops software distribution services, and creates comprehensive automated tests. Troubleshoots customer issues, reviews designs and code, collaborates across storage and cloud teams, and mentors engineers.

Leads the technical vision, architecture, and execution of AI performance, framework, benchmarking, and developer-productivity initiatives. Drives cross-team architecture, resolves complex systems trade-offs, mentors technical leaders, and contributes hands-on through prototyping, implementation, reviews, debugging, observability, and automation. Delivers measurable improvements in model onboarding speed, runtime performance, reliability, hardware utilization, and Azure capacity efficiency across models, frameworks, compilers, runtimes, systems, services, and hardware.

Lead architecture and hands-on delivery of secure mobile and backend applications for U.S. Air Force tactical users. Build resilient real-time communication, messaging, and offline mapping capabilities for degraded networks. Guide engineering practices involving AI-assisted development, automated testing, security review, and CI/CD. Partner cross-functionally, manage two engineers, and coach their development while overseeing technical direction and delivery.

Provides principal-level technical leadership for scalable learning and skilling platforms. Designs architectures, writes and reviews production software, leads full software lifecycles, and applies Azure, AI, Copilot, Power Platform, and custom solutions. Responsibilities include secure integrations, CI/CD, infrastructure as code, testing, observability, production support, Responsible AI, reusable components, cross-team technical alignment, and engineering mentorship.

Provides technical leadership for designing, coding, and operating hyperscale Azure Storage services. Builds high-performance storage servers, supports emerging hardware and AI workloads, improves efficiency, availability, durability, resiliency, observability, and performance, and resolves system bottlenecks. The role requires hands-on expertise in low-level storage systems, datapath, kernel-mode programming, distributed systems, and operating systems, along with independent architecture and technical decision-making.

Lead the design and evolution of cloud-native platforms, distributed systems, and infrastructure services at large scale. Define architecture across compute, networking, storage, datacenter, and AI infrastructure environments. Improve automation, lifecycle management, observability, reliability, security, and developer productivity. Guide technical strategy across engineering organizations while contributing to GPU, HPC, bare-metal, networking, and distributed computing platforms. Mentor engineers and foster technical excellence through architecture reviews and cross-organizational collaboration.

Build and launch product features end-to-end using TypeScript, SvelteKit, and Bun. Own new functionality from front end to back end, work directly with customers, and maintain high standards for systems design and code quality in an early-stage startup.

Lead development of scalable document-processing systems using Go, AWS serverless services, PostgreSQL, and OpenSearch. Own PDF processing reliability and performance at scale, build observability, contribute to database design, and drive architectural decisions. Translate ambiguous requirements into shipped solutions, mentor engineers, review code, and collaborate with product, QA, cloud, and architecture teams. The role also requires responsible handling of PHI under HIPAA requirements.

Designs and delivers large-scale Spring Boot and React applications, reusable APIs, microservices, and cloud-native solutions. Leads application architecture, reliability, security, observability, testing, deployment, and QA readiness across complex projects. Uses AWS, Docker, Jenkins, and Nomad to build scalable systems, advises on technical strategy and risk, coordinates project delivery, resolves technology issues, documents solutions, and mentors junior engineers.

Lead architecture and scaling for UKG Ready’s multi-tenant SaaS platform serving tens of thousands of customers. Own architectural governance, cloud and platform standards, AI/ML production integration, responsible AI practices, M&A technical diligence and integration, operational reliability, and cross-functional alignment. Deliver architecture roadmaps, MLOps patterns, integration playbooks, and technical documentation while mentoring senior engineers and architects as a hands-on strategic individual contributor.

Lead architectural design and hands-on implementation for UKG Ready software modules. Define technical roadmaps, architecture standards, CI/CD practices, observability, resilience, security, and cloud optimization. Collaborate with engineering, product, operations, and other stakeholders; evaluate emerging technologies; drive multi-year architecture strategy; document system architecture; mentor engineers; and leverage AI tools to improve engineering productivity and product capabilities.

Lead software architecture, design, development, and implementation for banking and payments solutions. Mentor engineering teams, collaborate on enterprise architecture, build scalable distributed services, manage vulnerabilities, and support Agile delivery. Work includes cloud platforms, CI/CD, big data, API integration, payment systems, legacy modernization, and technical performance troubleshooting.

Principal Software Engineer leading architecture and delivery across content, learner data, and adaptive learning programs. Designs AI- and agent-driven personalization services, learner models, recommendation engines, content platforms, and data pipelines. Builds and evaluates production AI capabilities for accuracy, pedagogy, safety, and bias; establishes shared service contracts and quality gates. Partners with learning science, product, design, data, platform, and security teams while mentoring engineers, improving observability, safeguarding student data, and evolving prototypes into durable platforms.

Leads the design and implementation of highly scalable Azure messaging and PubSub services. Defines architecture, testing strategies, coding standards, and reusable engineering frameworks; mentors engineers and conducts design and code reviews. Drives incident response, root-cause analysis, service reliability, SLA compliance, and operational improvements. Partners with stakeholders and customers to shape requirements and product direction, while advancing responsible AI practices throughout the software development lifecycle.

Lead technical strategy and architecture for Azure Storage geo-replication, data protection, failover orchestration, and business continuity. Drive cross-team delivery, operational excellence, telemetry, automation, AI-assisted operations, and represent the team in executive and customer engagements.

Leads architecture, development, testing, and deployment of hyperscale distributed storage systems optimized for AI and machine learning workloads. Drives innovations in scalability, performance, security, durability, and efficiency; collaborates with AI and cloud infrastructure teams; mentors engineers; and evaluates emerging technologies for AI-native storage.

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.