Top Backend Developer Jobs

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.

Design and build high-performance Java/Spring Boot backend microservices and event-driven systems for global post-trade accounting. Integrate Snowflake and SQL Server, use Kafka for streaming, and Redis for low-latency caching. Participate in design, code reviews, testing, performance tuning, and cross-functional collaboration; occasionally support light UI updates and automation tasks. Focus on reliability, maintainability, and production readiness.

The role involves developing, deploying, and maintaining backend services for Postman Flows in a Kubernetes cloud environment, focusing on high performance and operational excellence.

The Senior Backend Engineer will design, develop, and maintain web applications, ensure performance and scalability, and collaborate on full software development lifecycle.

As a Software Engineer II, you will develop backend services using Java and AWS technologies, collaborating with cross-functional teams to build scalable healthcare solutions.

Design and implement backend systems for business operations at WHOOP, ensuring reliability, performance, and scalability. Collaborate with stakeholders and mentor engineers.

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

The role involves developing and implementing cloud-native microservices for a Next-Gen SIEM platform, focusing on threat detection and processing vast datasets. Responsibilities include technical decision-making, mentoring junior engineers, and ensuring software engineering best practices.

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.

Lead backend engineer responsible for architecting and delivering large-scale distributed microservices for Capital One Travel. Lead projects and mentor developers, collaborate with product teams, design cloud-native solutions using Java/Scala and AWS, and promote shared platform patterns and best practices across stakeholder teams.

The Backend Product Engineer will enhance the Radar platform, manage API traffic, engage with customers, and work across various backend technologies to drive product success.

Lead diverse technology projects, mentor developers, and deliver cloud-based solutions while utilizing various programming languages and technologies.

Lead a team of developers to deliver cloud-based solutions, solve complex business problems, and mentor junior engineers while staying current with technology trends.

Lead a team of developers to deliver cloud-based solutions, collaborate with product managers, and utilize programming languages and tools for technology projects.

Design, build, and operate scalable backend services, data pipelines, and distributed systems on AWS. Improve content quality with AI/automation, optimize CI/CD and developer tooling, mentor engineers, and collaborate with product and design to deliver reliable, data-driven features that power Realtor.com.

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.

Build enterprise-grade authentication, authorization, and identity features across the full stack. Design and implement RBAC, provisioning (SCIM), SSO/OAuth integrations, secure public APIs, and admin workflows for auditing and compliance. Own end-to-end product changes, collaborate on architecture, and mentor engineers to deliver scalable, reliable systems for enterprise customers.

The Senior Backend Engineer will develop cloud-based systems for cybersecurity, focusing on scalability and reliability, using languages like Go and Python. Collaboration and mentorship are key components.

Design, build, and maintain globally distributed, fault-tolerant backend microservices and data pipelines. Integrate and refine Large Language Models, collaborate cross-functionally, ensure high-quality code, testing, monitoring, and mentor other engineers while owning features end-to-end.

The Software Engineer II (Backend, Health Records) will design, develop, and support backend systems for health data processing, including APIs and data pipelines, while ensuring data security and privacy.

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.

Backend Engineer responsible for designing, developing, and scaling APIs, SDKs, and databases to power AI applications, guiding technical direction, and shaping company culture.