Top Senior Full-Stack Engineer Jobs in Boston, MA

Build and scale full-stack platform services for user onboarding, identity management, privacy controls, and secure public-safety workflows. Develop React applications, Node.js APIs, database models, and complex SQL queries. Containerize applications with Docker, deploy Kubernetes microservices using Helm, and leverage AWS services including S3, API Gateway, and SQS. Solve authentication, authorization, performance, and data-security challenges while shaping foundational platform architecture.

Develop and maintain scalable full-stack applications for telecom and contact center environments. Build Java and Spring Boot microservices, REST APIs, event-driven integrations, frontend applications with Angular or React, and Node.js components. Work with PostgreSQL, OpenAPI, containers, and Jenkins CI/CD pipelines while optimizing performance and reliability. Collaborate with QA, DevOps, Product, and engineering teams on technical design, architecture, code reviews, and implementation decisions.

Lead full-stack development for secure, scalable mission planning and command-and-control software supporting space communications programs. Build frontend interfaces and backend services, design APIs, translate mockups into applications, conduct code reviews, improve quality and security, and mentor junior engineers. Work with modern web frameworks, containerized microservices, and highly secure government environments while owning technical problems end to end.

Develop and maintain scalable cloud applications powering a robotic fleet. Responsibilities include building web interfaces, APIs, telemetry and logging systems, dashboards, secure robot-cloud communications, cloud infrastructure, monitoring, troubleshooting, architecture, code reviews, and technical documentation. The role collaborates with embedded, AI/ML, and business teams to deliver reliable robotics software.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

Own Hercules’ full data stack, including ETL from third-party providers into BigQuery, data modeling with dbt and medallion architecture, semantic-layer metric definition, and self-service business intelligence in Omni. Build reliable, maintainable systems and dashboards while applying strong software architecture, API design, code quality, and AI-assisted development practices.

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.

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.

Designs, builds, and scales customer-facing full-stack platforms using React, TypeScript, backend languages, APIs, microservices, databases, and AWS. Responsibilities include architecture and code reviews, automated testing, CI/CD, cloud deployment, production troubleshooting, performance and reliability improvements, and collaboration with product and design teams. The role also mentors engineers, communicates technical decisions, and independently delivers complex initiatives in distributed Agile teams.

Build and evolve Humana’s NBA Action Library and Command Center using React, TypeScript, Node.js, PostgreSQL, and Kafka. Develop accessible front-end experiences, REST APIs, data models, integrations, automated tests, and reliable state-driven workflows. Collaborate with product, design, and platform teams to deliver secure, scalable software supporting action creation, governance, versioning, preview, and publishing.

Build and maintain full-stack features for a security infrastructure platform, expand PKI, PAM, and KMS products, work directly with enterprise customers, and explore AI applications in secrets management. The role requires strong JavaScript ecosystem expertise, particularly React, Node.js, and TypeScript, with optional Go and developer tools experience. This is a primarily remote role requiring work during US hours.

Deploys, configures, integrates, and operates Databricks and enterprise cloud data infrastructure for HUD. Automates infrastructure through IaC, scripting, APIs, and CI/CD; configures security, identity, access, compute, storage, and Unity Catalog. Supports data pipelines and Databricks applications, troubleshoots platform and integration issues, documents procedures, collaborates with cloud, cybersecurity, DevSecOps, and application teams, and provides technical leadership.

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.

Lead architecture and implementation of scalable web applications using NestJS and Next.js. Build and optimize PostgreSQL schemas and queries, implement responsive UIs with Tailwind CSS, integrate LangChain-driven AI features, manage authentication with Clerk, and create end-to-end tests and automation with Puppeteer to ensure launch readiness and reliable user experiences.

Build and deploy reliable full-stack software using React, Django, Python, TypeScript, and Azure. Own architecture and design decisions, collaborate in Agile ceremonies, improve engineering processes, mentor junior developers, and develop internal financial modeling tools. Partner with business stakeholders to define requirements, solve problems, and deliver scalable software supporting clean-energy investment and operations.

Develop and deploy a cloud-ready PostgreSQL/PostGIS database, Python REST APIs, ETL workflows, React interfaces, dashboards, and GIS visualization tools for the USGS Volcano Hazards Program. Ensure accessibility, security compliance, documentation, testing, and interoperability across volcano observatories. Collaborate with government stakeholders, support federal certification activities, and participate in up to three onsite visits during the 12-month engagement.

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.

Build and operate high-scale internationalization infrastructure, including translation workflows, APIs, UIs, libraries, and platform tooling. Improve legacy systems through migrations while enhancing reliability, observability, latency, security, and cost efficiency. Prototype and productionize machine-learning and large-language-model capabilities, collaborate across engineering and business teams, and deliver measurable improvements in quality, adoption, developer productivity, and operational efficiency.

Develop and maintain full-stack TypeScript applications using React, Node.js, and PostgreSQL. Build intuitive user interfaces, scalable APIs, and secure systems; collaborate on architecture, code reviews, testing, deployments, incident response, and infrastructure improvements. Mentor engineers, reduce technical debt, participate in Agile ceremonies, and support production systems in a remote-first environment.

Lead the design, development, and optimization of scalable web and mobile applications using Ruby on Rails, React, React Native, Docker, PostgreSQL, and AWS. Own architecture, APIs, data models, monitoring, performance, and code quality while collaborating with product, data, and DevOps teams. Provide technical leadership through system design, code reviews, mentoring, and continuous improvement in a remote-first healthcare technology environment.

Develop and support enterprise full-stack applications using Java, Spring Boot, Python, React, and cloud technologies. Build secure APIs, microservices, integrations, chatbot interfaces, and conversational UI features. Deploy cloud-native applications with Azure or AWS, Docker, and Kubernetes while contributing to CI/CD, testing, monitoring, security, and architecture. Collaborate with product, engineering, architecture, and business teams in an agile environment.

Build and maintain full-stack web features across database models, APIs, services, and user interfaces. Own product workflows from requirements and design through deployment, write production-ready code, collaborate with product and design, improve system reliability, and lead continuous releases. The role requires strong React, TypeScript, and Node.js experience, autonomy, clear communication, and a bias toward execution in a startup environment.

Lead end-to-end development of customer-facing product experiences and backend systems across frontend and backend layers. Design scalable services, APIs, and data flows; improve accessibility, performance, reliability, security, observability, and maintainability. Partner with Product, Design, Data, and engineering leaders to deliver complex initiatives, influence architecture, support incident response, mentor engineers, and connect technical decisions to customer and business outcomes.

Lead full-stack software development across frontend and backend systems, delivering user-facing healthcare features from concept through iteration. Design APIs and application architecture, write technical specifications, improve testing and CI practices, collaborate with product, AI/ML, clinical, and UX teams, and guide cross-team technical decisions. The role involves React, Python, cloud infrastructure, databases, asynchronous workflows, and healthcare data technologies.

Lead complex software projects and mentor engineers while building scalable full-stack products for Vanta’s expansion team. Develop purchasing, checkout, upgrade, renewal, billing, and trial experiences that support self-serve growth and revenue automation. Set technical direction, own product functionality and infrastructure, collaborate across teams, and contribute to engineering culture. The role uses TypeScript, React, and Node.js and involves greenfield development in a rapidly scaling startup environment.