Top Senior Full-Stack Engineer Jobs in Boston, MA

As a Senior Full Stack Engineer, you'll build high-performance observability tools, engage with developers, and tackle technical challenges in monitoring applications.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.

Responsible for leading a team of engineers, supporting product development, identifying technical issues, and ensuring high-quality code delivery in backend systems at scale.

The Senior Full Stack Developer will develop and maintain scalable web/mobile applications, create business and technical requirements, and lead strategic initiatives with hands-on experience in various technologies.

This role involves designing and developing scalable web applications, leading projects, mentoring engineers, and ensuring quality through best practices and collaboration.

Lead full-stack development of email and web services, design scalable architectures, monitor and improve email delivery and sender reputation, build prototypes, ensure reliability and security, participate in on-call rotation, and collaborate with designers and product teams.

Lead full-stack development and architecture for accounts and email services. Build prototypes and features, monitor email delivery and sender reputation, diagnose service issues, improve security/logging/performance/accessibility, conduct code reviews, collaborate on product and design, and participate in a shared on-call rotation to maintain reliable services.

Develop and optimize web applications, APIs, and backend services. Collaborate cross-functionally and take ownership of features from concept to deployment.

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

As a Senior Full Stack Engineer, you'll design and build cloud-native applications for the payments platform, ensuring reliability and scalability. Collaborate with engineering teams to deliver solutions and maintain production systems.

As a Senior Fullstack Software Engineer, AI, you'll design AI systems, build backend functionalities, support scalable solutions, and collaborate with cross-functional teams to enhance customer experiences.

As a Senior Full-Stack and Platform Software Engineer at mabl, you will develop features for an AI-powered test automation platform, enhancing user experiences, designing APIs, and optimizing data pipelines while collaborating with cross-functional teams.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

As a Senior Full Stack Developer at Capnexus, you'll design and build a cloud-native subcontractor pre-qualification platform using AWS, incorporating AI and modern frontend/backend technologies, ensuring seamless integration and deployment.

Lead the design and development of scalable data infrastructure supporting satellite operations and Earth observation, optimizing cloud-native data pipelines and systems.

The Senior Full-Stack Engineer will oversee full-stack application development, perform code reviews, collaborate with teams, and ensure high-quality outcomes.

The Senior Full Stack Engineer will design and build APIs, develop user-facing features, mentor other engineers, and ensure high-quality software delivery.

The role involves owning the product workflow, building user-facing features, maintaining systems, and collaborating with cross-functional teams. Strong React and Typescript skills are essential.

As a Senior Full Stack Engineer at Calendly, you will build and maintain core calendar infrastructure, focusing on API development, synchronization services, and search infrastructure, collaborating with cross-functional teams.

As a Senior Full-Stack Engineer, you will build features across React/TypeScript and Python/Django, shape product outcomes, and collaborate with cross-functional teams to ensure user satisfaction and engineering quality.

Lead the development of Coperniq's platform by designing, developing, and maintaining scalable full-stack solutions while collaborating with teams and mentoring juniors.

The Senior Full Stack Developer will design, develop, and maintain web applications using Python and React, while collaborating with cross-functional teams to deliver high-quality software solutions.

Design, build, and run full-stack growth experiments end-to-end to improve acquisition, activation, engagement, and monetization. Collaborate with product, design, and analysts, analyze results, iterate quickly, and contribute to experimentation platform and growth infrastructure.

Design, build, and maintain resilient full-stack services for distributed financial SaaS systems. Lead end-to-end projects, optimize performance, ensure security and observability, mentor teams, and reduce technical debt.

As a Senior Full Stack Engineer, you will develop scalable software solutions, mentor junior engineers, and improve system performance by integrating various technologies.