Top Backend Engineer Jobs in Boston, MA

Build and improve frontend experiences for login, signup, OAuth, account security, and multi-user/org support. Contribute to migrating main views to React Native, design high-performance React/TypeScript UIs, collaborate with backend engineers and product teams, and write well-tested, reliable code to maintain low-latency user surfaces at scale.

Lead long-term technical vision and roadmap for the Overseer platform to ensure correctness across Coinbase fund flows. Own architecture, design and delivery of real-time detection, invariant frameworks, and partner APIs. Drive cross-team alignment, set engineering standards, mentor engineers, lead P0 initiatives, and apply generative AI responsibly to scale automated guardrails and enforcement capabilities.

As a Backend Engineer, you will design, build, and scale APIs for Modulate's conversation intelligence platform, enhancing system performance and reliability while collaborating with product teams.

As a Software Engineer II, you'll develop scalable backend services, optimize APIs, and collaborate across teams to enhance user growth metrics.

Design and implement backend solutions that support hardware development at WHOOP, creating tools for hardware integration and managing data pipelines.

The Senior Software Engineer will lead the development of backend services and APIs, design system architecture, and collaborate closely with teams to evolve the Enterprise platform.

The Senior Staff Software Engineer will architect Affirm's lakehouse analytics platform, lead data governance efforts, mentor engineers, and collaborate across teams to optimize data solutions using Snowflake and other big data tools.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

The Senior Backend Engineer will develop the Payroll product, overseeing the entire development cycle from design to deployment, in a microservices architecture.

Design, build, and maintain scalable backend services and APIs for commerce workflows using Python/Django. Improve reliability, performance, and observability, operate AWS deployments, work with PostgreSQL and event-driven architectures (SNS/SQS), modernize legacy systems, and support CI/CD, testing, and production troubleshooting.

The Principal Python Backend Engineer will design and build high-performance backend systems for AI/ML services, focus on clean code, maintainability, and automation, while leading teams through a collaborative and innovative approach.

Staff Backend Engineer responsible for leading complex engineering projects, designing scalable systems, mentoring junior engineers, and enhancing platform performance at Socure.

Design, build, and maintain backend workflow orchestration and state management for analyzer integrations on the ECL platform. Modernize legacy .NET systems, ensure reliable event-driven operations, collaborate with integration, infrastructure, and QA teams, and preserve workflow behavior during knowledge transfer.

Lead architecture and implementation of conversational AI systems, build scalable backend services and REST APIs, drive high-impact projects, integrate external partners and carriers, collaborate with Data Science on ML/LLM solutions, and ensure platform performance and scalability.

The Staff Software Engineer will lead technical strategy, ensure system availability, and develop backend systems at scale, collaborating across teams to drive capacity modeling and operational quality.

Develop and enhance backend systems, collaborate with teams for project execution, and improve engineering standards and processes.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.

Lead the design and implementation of backend services for data cataloging and ML training systems, focusing on performance and scalability.

Build and maintain secure, well-tested backend systems and internal tooling (dashboards, workflows, automation) for lending and trading operations. Design scalable APIs and durable workflows, integrate external services, optimise performance, and collaborate with Risk, Ops, Trading, Product, and Engineering teams to deliver reliable production systems.

The Back-end Engineer will develop and maintain services and APIs, design data models, and contribute to system stability, collaborating with other engineers and product managers.

The Backend Engineer will develop infrastructure for product integration, create documentation for team training, and influence technology decisions.

Develop a platform for liquidity and loan collateralization. Responsibilities include building and integrating data pipelines, creating user experiences, and collaborating with teams for system design.

As a Backend Engineer, you'll design and implement systems for decentralized applications, enhance scalability, and collaborate with the team.

The Software Engineer, Backend Engineer will develop, automate, and maintain core functionalities for Rescale customers, focusing on backend systems and cloud services.

Define technical direction and architect systems for high-performance, scalable infrastructure. Mentor engineers and drive architectural decisions. Manage large-scale data ingestion and retrieval.