Top Senior Backend Engineer Jobs in Boston, MA

Design, develop, and maintain scalable, high-performance backend systems and APIs. Integrate cloud-native services, manage SQL/NoSQL databases, implement security best practices, optimize performance, and support production environments. Collaborate with product, frontend, and DevOps teams, participate in code reviews, and troubleshoot backend and cloud infrastructure issues.

Design, build, and scale event-driven, distributed backend systems in Python to extract and enrich metadata at massive scale. Lead architecture, mentor engineers, integrate ML/LLM components, optimize performance, and ensure observability and reliability across AWS-based pipelines.

Lead design and scaling of content ingestion, metadata, and processing systems. Build reliable pipelines handling messy formats, collaborate with ML, security, and product teams, mentor engineers, and drive platform and AI/LLM integration for content workflows and quality.

The Backend Software Engineer will develop data ingestion pipelines, implement observability tools, and provide technical support while improving team collaboration.

The Senior Software Engineer will lead and support a team in developing reliable and scalable backend systems, collaborating on product development, and improving infrastructure for secure communication between services.

Build and scale backend services for the Booking Engine: design and implement PHP features and APIs, model availability/pricing data, improve performance, migrate to microservices/event-driven architecture, ensure reliability at scale, mentor engineers, and drive backend architecture and best practices.

The role involves developing a decentralized darkpool with high-performance matching engine, cross-chain liquidity aggregation, and fault-tolerant architecture while ensuring cryptographic privacy and low latency.

Lead backend architecture and implementation for Java Spring microservices, validate and own AI-assisted code, mentor engineers, collaborate with product to deliver features, and drive technical excellence and scalable, test-covered systems.

Build and own the graph layer and RAG architecture enabling agent reasoning over full patient context. Select graph DBs, design query patterns, and ensure temporal coherence. Implement event-driven Kafka pipelines for auditable, immutable agent workflows and enforce ReBAC permissions. Prioritize safety and scalable AI-assisted workflows, participate in spec and plan reviews, and drive architecture decisions.

Build, enhance, and maintain backend services and REST APIs in Go; develop ETL pipelines in Python; design reliable PostgreSQL-backed APIs; use AWS services (S3, Lambda, Step Functions, Glue) for data processing; write well-tested, secure code; support operations and maintenance; participate in code reviews and cross-functional Agile collaboration.

The Senior Back-End Developer builds and maintains server-side operations for cloud solutions, collaborating with teams to deliver software, support users, and document features.

Lead backend development to scale and harden API infrastructures, implement unit testing playbooks, optimize core algorithms, support migration from Supabase to a robust cloud provider, ensure system reliability and scalability, collaborate with frontend and DevOps, and integrate AI workflows and RPA where applicable.

The Senior Backend Engineer will lead client projects, build AI solutions, and develop technical standards while mentoring junior engineers.

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.

The Senior Backend Engineer will develop financial technology solutions, focusing on transparency in consumer lending through modern API development and data analytics, while collaborating with various teams to enhance product offerings.

Design and implement core data pipelines for an AI-native cloud platform, focusing on robust and scalable solutions for cybersecurity.

The Senior Backend Engineer will design and develop scalable software applications, focus on cloud migration, and lead technical efforts with development teams.

The role involves designing and expanding backend systems, mentoring engineers, and executing technical strategies to modernize architecture and improve system performance.

The Senior Backend Engineer will develop, test, and maintain scalable integrations, support cross-functional teams, and enhance developer experiences.

Design, build, and optimize scalable, secure backend services, APIs, and data pipelines to support thick-client desktop applications (e.g., Electron). Focus on performance, concurrency, data modeling, authentication/authorization, and integration with DevSecOps pipelines. Collaborate on schema design, code reviews, CI/CD, containerization, and secure communications in regulated environments.

Design, implement, and maintain scalable backend services primarily in Clojure; support and modernize legacy Node.js services; collaborate on cloud deployments, infrastructure-as-code, and deployment pipelines; ensure code quality through reviews and debugging; work with cross-functional teams to integrate services and improve reliability.

Design and build scalable backend systems, data pipelines, and cloud infrastructure. Own CI/CD, containerization, databases, and reliability; collaborate with tech leads to deliver secure, production-grade solutions for startups in a fully remote environment.

Design, develop, and operate scalable backend systems focused on authentication and authorization. Lead secure REST API and IAM feature development, mentor engineers, perform security-first code reviews, integrate observability, and drive reliable production releases in a remote-first SaaS environment.

Design, implement, and maintain scalable, high-performance backend services for Home Assistant Cloud. Work on authentication, subscriptions, and payment services, participate in code reviews, collaborate cross-functionally, apply security and data-protection best practices, and operate production systems including troubleshooting and improving reliability and performance.

Build, scale, and maintain cloud-native backend services and APIs using C#/.NET on Azure. Lead architecture, performance optimization, CI/CD, code reviews, mentor engineers, and collaborate with product, design, and frontend teams to deliver reliable, high-performance features.