Top Remote Principal Software Engineer Jobs in Boston, MA

Lead the rearchitecture and implementation of Arcadia's User Management system, focusing on authentication and authorization frameworks. Drive new systems and mentor engineers to ensure secure data access and operational excellence.

Lead technical architect and hands-on principal engineer for the SOC Experience team, building scalable investigation workflows, agentic LLM features, automation, remediation actions, and analyst tooling. Drive architecture, mentor engineers, prototype solutions, ensure reliability and observability, and partner with product, UX, and SOC stakeholders to turn operational problems into auditable, production-grade systems.

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.

Lead design, development, and delivery of mission-critical SIEM platform features. Define technical vision, own quality and uptime, mentor engineers, collaborate cross-functionally, build AI-assisted workflows, and drive performance, monitoring, and architecture decisions.

Lead the architectural design and development of a new consumer credit product, focusing on backend systems, distributed services, and integrating AI tools. Mentor team members and influence product direction through engineering insights.

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.

As a Senior Principal Engineer, you'll define and drive the technical strategy for customer experience platforms, lead architectural decisions, and mentor engineering teams to enhance customer and agent experiences.

The role involves building and optimizing a machine learning and simulation platform, supporting MLOps, model deployment, and infrastructure modernization, while mentoring engineers.

Provide technical leadership for internal platforms and security automation supporting Upstart Bank. Lead architecture, design, and implementation of platform services, APIs, relational schemas, authentication and RBAC systems. Partner with risk, compliance, and operations stakeholders, mentor engineers, mitigate technical risks, and drive long-term platform strategy and engineering standards.

The Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.

Lead and mentor an engineering team building GovIntel and GovChannel product capabilities. Own technical direction, design and deliver scalable SaaS features, APIs, integrations, and platform reliability. Partner with Product, QA, Cloud Ops, and stakeholders to prioritize work, drive CI/CD and observability practices, lead reviews and incident response, and apply AI-assisted tools to improve development speed and quality.

The role involves building and optimizing big data pipelines, designing data architectures, collaborating with data scientists, and driving technical strategy for data processing infrastructure.

Lead architecture and implementation of high-performance software to deploy and operate AI/ML models for network threat detection. Build autonomous AI agent workflows, production ML pipelines, and services; drive cross-team engineering standards, mentor engineers, and represent technical direction to leadership.

The Principal Software Engineer leads a team to develop full-stack real-time applications, integrates machine learning models, and influences software architecture in cloud environments while supporting healthcare analytics.

The Principal Software Engineer - Web is responsible for designing and developing new features for Yahoo Mail, mentoring peers, and enhancing user experience. This role requires strong knowledge of web technologies and collaboration with cross-functional teams to deliver high-quality updates and improvements.

Lead architecture and technical direction for Ruby on Rails and React systems, design scalable APIs and front-ends, own services/databases/infrastructure (MariaDB, Redis, Elasticsearch), use Kubernetes for scaling, integrate AI-assisted development workflows, mentor engineers, and deliver secure, well-tested production releases.

The Principal Software Engineer will lead architectural direction, integrate AI capabilities, mentor engineers, and tackle complex technical challenges for scalable systems.

The Principal Software Engineer will architect and oversee the development of distributed systems, mentor engineers, and drive architectural initiatives for large platforms.

Lead architecture and long-term technical direction for Docker Hardened Images (DHI). Define platform standards for image and Helm chart hardening, supply-chain posture (SBOM, SLSA, signing), and distribution. Drive cross-functional roadmaps, resolve ambiguous packaging/security problems, influence upstream OSS, mentor senior engineers, shape test and tooling strategy, and participate in on-call incident response.

Define frontend technical strategy and standards across the org, establish data layer and state management best practices, collaborate with AI Developer Experience on AI-assisted frontend tooling, embed with teams to write code (~50% time), drive platform-level operational excellence, influence executive strategy, and mentor engineers to raise frontend architecture and developer experience.

The Principal Software Engineer, Cloud will lead the Cloud Platform team to define technical strategy and architectural direction, ensuring robust cloud systems for robotics and AI applications.

The role involves designing and developing secure software solutions, focusing on innovative sensor technology for Linux environments, and enhancing customer adoption through collaboration.

Design and build autonomous accounting agents, implement a custom accounting ledger, integrate financial data providers, and ship daily features using TypeScript/Node/Svelte. Work rapidly in an early-stage startup, make product decisions, and engage in customer problem discovery.

The Principal Software Engineer will lead technical initiatives, align cross-functional teams, establish standards, and guide multiple engineering teams towards strategic objectives, driving large-scale improvements in business outcomes.

The Principal Software Engineer will shape and evolve HubSpot's data platforms, driving architectural decisions, building frameworks, and influencing infrastructure across teams.