Top Senior Full-Stack Engineer Jobs in Boston, MA

The Senior Full-Stack Engineer will design, implement, and maintain systems for Trading API customers, focusing on both frontend and backend development, while leading projects and mentoring peers.

Architect, design, build, test, and deploy highly available real-time systems. Participate across the SDLC, implement automated testing and CI/CD, maintain documentation, troubleshoot and enhance existing software, and collaborate in an Agile/Scrum team environment.

The Senior Frontend Engineer will enhance user productivity by developing a scalable collaboration platform, optimizing app performance, and leading feature design and implementation.

The Full Stack Engineer will develop the BrandVNO platform, enhancing customer SDKs and ensuring high-quality telecom experiences across mobile apps.

Develop and maintain the frontend using Vue.js, integrate with Django APIs, ensure application performance, and participate in code reviews for continuous improvement.

As a Senior Full Stack Engineer, you'll lead development of features in Node.js/React, maintain data pipelines, and support code quality in a collaborative, innovative environment focused on scientific research.

This role involves delivering high-quality software, collaborating with teams, leading code reviews, and contributing to architectural decisions for scalable systems.

Lead the development and technical direction of fullstack applications, ensuring high quality, performance, and security while collaborating with cross-functional teams and mentoring other engineers.

The Senior Fullstack Engineer will build foundational product features and integrations to drive user acquisition, optimization, and monetization at LangChain, collaborating with various teams for growth.

Lead the technical architecture and implementation for LangSmith, collaborating with teams, mentoring juniors, and ensuring code quality.

As a Senior Software Engineer, you'll implement collaboration features, support team architecture, work across tech stacks, and improve developer experience.

The Senior Fullstack Engineer will design, build, and maintain features for Clarium's AI-powered healthcare platform, collaborating with cross-functional teams to enhance efficiency.

As a Full Stack Engineer, you'll develop production-ready AI and ML features, build APIs, design scalable systems, and implement frontend solutions using Angular.

Join Logz.io as a Senior Full Stack Developer, owning features from frontend to backend, collaborating on architectural decisions and optimizing performance across a real-time data stack.

Lead the design and development of scalable SaaS platform solutions while producing and enhancing applications in the SaaS ecosystem using full-stack development practices.

Design and implement AI-powered backend systems for media experiences in Dropbox, collaborating with cross-functional teams, and influencing technical decisions.

Lead the development and maintenance of content ingestion systems, oversee software feature design, communicate across teams, and mentor members.

Rapidly triage and resolve customer-reported full‑stack bugs across 3D visualization, report/PDF generation, and databases. Independently investigate unfamiliar codebases, implement tested fixes, ensure performance integrity, collaborate with CSE to prioritize and deploy fixes, and reduce backlog velocity.

As a Senior Full Stack Engineer, you'll work with a cross-functional team to implement features, develop with TypeScript, and ensure scalability and reliability of applications.

Build enterprise-grade features for multi-location customers: frontend React+TypeScript interfaces, admin consoles, backend APIs, SSO/RBAC security, multi-tenant PostgreSQL architectures, and well-tested, maintainable code.

As a Full Stack Engineer, you will build features from database to UI, implement integrations, ensure stability, and improve the platform with a focus on technical excellence and user experience.

The Senior Full-Stack Developer will create software solutions jointly with clients, ensuring high-quality code and effective collaboration with the team.

The Senior Full Stack Engineer will build and enhance web visualization tools, collaborate with teams, support scalable APIs, and maintain CI/CD processes.

Lead modernization of a legacy .NET/SQL Server payment-integrity platform: migrate services to modern .NET, design reliable RESTful APIs, improve database performance, implement security and observability, and use AI agents to accelerate refactors and testing while partnering with product, UX, DevOps, and QA to ship high-quality features.

The role involves building and scaling a core product, owning major features, and influencing architecture in a healthcare AI startup while ensuring security and ethics.