Top Remote Senior Full-Stack Engineer Jobs in Boston, MA

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Develop and deploy customer-focused web, mobile, and backend applications across the full software stack. Design major features, contribute to architecture decisions, conduct code reviews, and ensure secure, high-quality implementations. Collaborate with stakeholders and cross-functional teams using Agile and SDLC practices. Manage version control, CI/CD, environments, and releases; maintain automated test coverage and perform root-cause analysis. Build and optimize relational data solutions using SQL Server, including complex queries, stored procedures, and performance tuning.

Design and lead backend platform services, REST and GraphQL APIs, integrations, security patterns, HIPAA-compliant PHI controls, AI/LLM integration, observability, and reliability infrastructure. Contribute to end-to-end full-stack features using TypeScript, Next.js, and React. Establish architecture standards and reviews while supporting scalable services used by healthcare teams and patients.

Leads technical vision and strategy for Affirm’s Marketplace, Search, Ads Platform, and consumer experiences. Designs scalable full-stack platforms, guides architecture and technical excellence, coordinates initiatives across engineering teams, mentors engineers, and drives reliable delivery of customer-focused products across iOS, Android, and Web.

Lead the technical vision and delivery of high-performance APIs and patient and provider web experiences using Ruby on Rails and React. Collaborate with Product, Design, and Engineering to deliver scalable features, improve development and testing standards, and balance user experience with maintainable code. Responsibilities include backend API architecture, frontend performance, automated testing, deployment pipelines, on-call support, and protecting user data.

Own fullstack development for Broad Arrow Auctions across customer-facing auction experiences and internal live-auction tools. Build scalable web applications, APIs, integrations, automated tests, and cloud infrastructure using Azure and AWS. Maintain Billboard auction software, integrate Microsoft Dynamics 365, monitor production systems, participate in on-call support, contribute to architecture, improve reliability and performance, and mentor less experienced engineers.

Build and scale full-stack applications, backend services, APIs, infrastructure, and user experiences supporting millions of users. Design reliable, high-performance systems; partner with Product, Design, and Data; own projects through deployment and optimization; improve observability and developer productivity; and support AI adoption through automation and AI-powered workflows.

Build and evolve scalable full-stack products using React, TypeScript, Next.js, Python, and Django. Own frontend and backend architecture, APIs, testing, CI/CD, observability, performance, and reliability. Collaborate with Product and Design, lead technical initiatives, identify risks, define solutions in ambiguous environments, and mentor engineers. Develop 0-to-1 experiences and production systems across cloud-based environments while establishing engineering standards and monitoring technical and product metrics.

Build and maintain full-stack features for Vanta’s third-party risk management products, including vendor onboarding, lifecycle management, monitoring workflows, data models, and platform abstractions. Write tested code, participate in reviews and architecture decisions, and collaborate with product, design, and engineering teams to deliver customer-facing functionality. Experience with TypeScript, React or Node.js, web applications, databases, and REST or GraphQL APIs is expected.

Lead development of secure, scalable digital banking software across front-end and backend systems. Design Angular or React applications, build APIs, optimize SQL performance, integrate third-party platforms, improve code quality, implement testing strategies, and mentor engineers. Collaborate with cross-functional teams in an Agile environment while supporting cloud-native practices, regulatory compliance, and continuous product improvement.

Develop and maintain full-stack features for CMS’s Unified Case Management system. Responsibilities include building Java and Spring Boot backend services, APIs, data models, Angular or React interfaces, database interactions, and automated tests using test-driven development. The engineer will optimize performance, scalability, security, and data integrity; collaborate on system design and integration; reduce technical debt; and support teammates in a remote-first environment.

Designs, builds, and scales full-stack web applications using React, TypeScript, Python, and AWS. Develops APIs and backend services, optimizes relational and document databases, implements automated testing, and manages Docker-based deployments and CI/CD pipelines. Collaborates with technical and non-technical stakeholders, translates business requirements into production-ready solutions, communicates clearly, and mentors colleagues while promoting strong engineering practices.

Design, build, and optimize scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Build and ship full-stack features, including REST APIs, single-page applications, data models, cloud-based containerized services, and relational database solutions. Translate product requests into deliverable work, contribute to architectural decisions, review pull requests, and protect patient data by maintaining strict PHI-handling practices. Work in a trunk-based development environment with short-lived branches, frequent releases, and continuous collaboration.

Build and own a multi-tenant web platform for managing AI infrastructure. Develop Next.js and React features, server-side authentication and API proxying, generated TypeScript SDKs, resilient data synchronization, design-system components, accessibility, performance, testing, observability, and production deployment. Collaborate with backend and globally distributed teams, review code, troubleshoot production issues, and mentor junior engineers.

Senior Full Stack Engineer building scalable, high-performance web applications. Own feature design through delivery, write clean reusable code, optimize databases, work with CI/CD, containers, cloud, distributed systems, mentor teammates, and maintain zero customer-reported bugs.

Build and maintain full-stack software for startup clients, including backend services, frontend experiences, new features, redesigns, bug fixes, and product improvements. Collaborate daily with product managers, designers, and engineers in a distributed, agile environment. Take ownership across the technology stack, write clean maintainable code, contribute to client missions, and support team growth and knowledge sharing.

The Senior Fullstack Software Engineer will design, implement, and maintain features for Conveyor's SaaS platform, involving both backend and frontend work, while collaborating closely with team members and mentoring juniors.

Design, build, and maintain AI-powered B2B SaaS products across frontend, backend, and AI. Own projects end-to-end, collaborate with product and design, ensure maintainability, mentor teammates, and inform roadmap and implementation decisions.

Designs, builds, tests, deploys, and optimizes full-stack product features using React and Python. Develops GraphQL integrations, scalable backend services, data visualizations, analytics instrumentation, and production-ready platform capabilities. Contributes to UX workflows, CI/CD, monitoring, code quality, and stakeholder updates while collaborating in agile sprints and evaluating new technologies.

Lead technical direction and delivery for the Acquisition & Onboarding full‑stack team. Build and maintain mobile (React Native/native) and web experiences, backend services at scale, and operational tooling. Drive architecture, mentor engineers, ensure reliability/monitoring/on‑call readiness, collaborate with product and design, and improve dev processes, testing, and release practices to impact conversion and retention.

Build and own scalable fintech products end to end, partnering with product, design, and data teams. Design high-performance, event-driven systems, integrate AI models and autonomous agents, instrument features, monitor business outcomes, and optimize user experiences. Work across React, TypeScript, React Native, Laravel, PostgreSQL, and AWS while influencing technical strategy, architecture, and product decisions.

Build and scale backend-focused systems supporting truckload freight operations, including high-volume carrier quotes, automated transactions, distributed services, and APIs. Design scalable data models and architectures, contribute across the React and TypeScript stack, make key technical decisions, mentor engineers, and collaborate with product leadership. The role also involves developing AI-powered logistics tools and maintaining reliable, secure infrastructure on Kubernetes and GCP.

Owner of Vannevar's authentication and authorization platform: build tenant-isolated auth systems, self-service user/group/permission admin UI, tooling to visualize and validate access, feature-flag and platform management interfaces, and shared authorization capabilities across products.

Senior fullstack engineer to build and scale Brigit's consumer finance platform. Own end-to-end features across frontend (React/React Native/TypeScript) and backend (Java/REST/SQL), optimize database and APIs for high scale, integrate 3rd-party services, implement risk and transaction algorithms, improve CI/CD, testing, monitoring, and internal tooling to support millions of users.