Software Engineer Jobs in Cambridge, MA

The Principal Software Engineer will lead architectural decisions, mentor engineers, optimize system performance and reliability, and drive technical direction for LangChain's observability and evaluations platform.

The Senior Software Engineer II will design and develop cloud-native backend systems for Stream Governance, mentor engineers, and solve complex data challenges in a team-focused environment.

The Principal Software Engineer will lead Android SDK development, mentor other developers, collaborate on project plans, and design scalable solutions while ensuring technical excellence.

Lead the development of full-stack solutions, mentor teams, evaluate technologies, design scalable systems, and improve operational efficiency while ensuring high quality.

Develop and optimize machine learning models for autonomous vehicles, focusing on ML model deployment and performance across various compute platforms.

Embed with product and domain teams to rapidly design, prototype, and deploy production-grade AI agents and full-stack solutions. Lead architecture and documentation, build front-end interfaces, integrate LLMs/RAG and agent frameworks, operate and monitor production systems, triage incidents, and mentor junior engineers while driving stakeholder alignment.

Design, develop, and maintain scalable data platforms and batch/streaming pipelines. Implement data scientist algorithms, drive engineering best practices, mentor junior engineers, improve processes and infrastructure, and contribute to distributed system software and CI/CD in an Agile environment.

Lead design, delivery, and scaling of reliable, secure consumer-facing platform systems. Define architecture, translate ambiguous problems into execution plans, improve developer tooling/workflows, mentor engineers, and collaborate cross-functionally to shape the platform roadmap.

Lead full‑stack development of customer‑facing features, own product lifecycle from design to release, build scalable AI‑enabled back‑end systems on AWS, improve CI/CD and testing, collaborate with product, design, and ML researchers, and ensure security and privacy best practices.

The Principal Embedded Software Engineer develops high-performance embedded software solutions, mentors junior engineers, and manages technical risks in software projects across various domains.

Designs, develops, and tests enterprise-grade applications and back-end services. Implements test automation (unit to integration), RESTful APIs, event-driven workflows, and database solutions. Collaborates in Agile/Scrum, supports UAT and post-installation testing, and produces documentation and project plans for multiple initiatives.

As a Senior Fullstack Software Engineer, design and maintain scalable web applications, work across the tech stack, and mentor junior developers to improve user experience and safety.

The Senior Software Engineer will enhance financial services applications by developing front-end and back-end features, collaborating with product teams and providing technical support.

As a Staff Software Engineer, you will lead the technical vision for DataRobot's Fleet team, mentoring engineers and architecting scalable infrastructure using Kubernetes for multi-cloud environments.

Lead frontend design and implementation for patient and physician products, shape frontend architecture (design systems, state, testing, performance), integrate AI/LLM features with backend/ML teams, and deliver polished, accessible, high-performance interfaces in a hybrid NYC/Boston environment.

Design and build high-performance UI and APIs, manage database architecture, optimize systems for reliability and performance, and collaborate cross-functionally in a scientific context.

The Senior Software Engineer will build and maintain backend services, collaborate across teams, and contribute to Pixability's video advertising optimization platform.

The Lead Software Development Engineer in Test is responsible for designing, developing, and maintaining automated tests and frameworks to ensure software quality. The role includes collaborating with team members, creating test cases, and aligning risk processes.

Design, develop, and maintain scalable AI/ML systems and end-to-end pipelines (data preprocessing, model training, prompt engineering). Collaborate cross-functionally, optimize model performance, ensure fairness and security, monitor production systems, troubleshoot issues, mentor junior engineers, and recommend improvements to data infrastructure and tooling.

Seeking a Staff Software Engineer to lead architectural decisions, design GraphQL APIs, interface with biologists, and support software development in synthetic biology.

Responsible for building and scaling a cloud-native Content Platform involving secure communications and document generation, integrating with Quadient and other services, and focusing on API development and frontend capabilities.

Lead a full-stack product team to build secure financial and card issuance SaaS solutions while ensuring system reliability and compliance in a regulated environment.

ABCorp is looking for a Principal Software Engineer to lead the technical direction of their Client Experience Platform, overseeing frontend, backend, and data architecture while mentoring engineers and collaborating with Product and UX teams.

Lead full‑stack engineering initiatives to build AI-enabled healthcare products. Ship physician-facing web and mobile features, integrate ML/LLM tooling, architect scalable back-end systems and health data pipelines, and collaborate cross-functionally with product, clinical, and research teams.

Own and evolve core backend platform primitives: external APIs, retrieval/search (RAG) infrastructure, unified health data models including time-series, and enterprise integrations to support AI-driven clinical workflows and multi-tenant reliability.