Top Backend Developer Jobs

As a Back End Engineer, you will develop core financial systems, manage APIs, and optimize architecture while collaborating across teams.

Build and maintain backend systems for data center networking: implement Go and Python services, design scalable ingestion/transform pipelines across Kafka, Postgres, and Clickhouse, maintain schema versioning and backwards compatibility, create CI/CD workflows, enable fine-grained historical and real-time querying, collaborate on reproducible model training/evaluation pipelines, and optimize performance to meet real-time serving constraints.

As a Back-End Developer, you will create scalable systems and APIs, maintain software development, and collaborate with teams to deliver solutions.

Lead and oversee full stack applications for Yahoo Search, ensuring architectural integrity and code quality while mentoring engineers and collaborating with cross-functional teams.

Design, build, and operate scalable AWS-based backend services and APIs for the Collectors Vault. Own architecture and delivery, improve performance and reliability, mentor engineers, and leverage modern AI tools to accelerate development and engineering velocity.

Lead backend and full-stack work on the Payments team, building multi-gateway integrations (Stripe, PayPal), payment APIs, and customer payment UIs. Ensure secure, compliant (PCI-DSS) payment flows, reliability, observability, and scalability across AWS/Kubernetes microservices. Partner cross-functionally to design architecture, implement settlement/reconciliation, and maintain high availability.

Build and operate the Power Packs customer experience and backend services. Design data foundations, APIs, and integrations across platform services. Troubleshoot distributed systems, contribute full-stack plumbing as needed, improve observability and documentation, and collaborate with Product and partner teams to deliver scalable, multi-tenant marketplace capabilities.

Design, develop, test, and maintain enterprise-grade Java backend systems and Spring Boot microservices. Build and enhance REST APIs, integrate with internal authentication, optimize performance and scalability, contribute to large-scale data pipelines, write automated tests, troubleshoot production issues, and collaborate with product, QA, and DevOps in Agile processes.

The Back-End Engineer will design and build core platform services, operate production services, and work on AI-powered features while collaborating with cross-functional teams and mentoring junior engineers.

Design, build, and operate large-scale backend services (identity, friend graph, persistence). Collaborate cross-team to evaluate trade-offs, ensure availability, scalability, and operational excellence, debug and resolve incidents, and use AI tools to accelerate development while maintaining security and code quality.

Nango is hiring Senior and Staff Backend Engineers to design, build, and optimize backend systems and APIs, collaborating with customers and driving product strategy.

As a Backend Engineer, you will own end-to-end backend systems, build reliable APIs on Node and AWS, and implement scalable architectures. You will be responsible for high-quality production code delivery, establish best practices, and interface with product teams to enhance financial product performance.

Build and launch AI-powered user-facing features on a Ruby on Rails backend. Integrate LLMs (OpenAI, Google, Anthropic), own zero-to-one product initiatives, write well-tested maintainable code, and mentor engineers while collaborating with product, design, and cross-functional teams.

Design, develop, test, document, and debug full-stack software with emphasis on backend and containerized cloud deployments. Build and integrate RESTful APIs, migrate or develop cloud-native applications (preferably AWS), mentor team members, and manage development lifecycle using Agile and DevOps practices. Maintain and troubleshoot production issues and promote reusable, extensible architecture.

Lead design, build, and maintenance of scalable, secure blockchain participation and custody infrastructure. Improve automation, monitoring, incident response, and observability; debug distributed protocols; inform leadership strategy; scope product opportunities; and support on-call reliability and deployment automation.

Contribute to design, development, and maintenance of real-time risk control and decisioning services. Implement risk rules, scoring models, and feature pipelines for fraud, AML, and account security. Troubleshoot issues, write technical documentation, and collaborate with Risk Operations and CS teams to investigate cases and improve systems.

Design and ship REST APIs, model data in relational and graph stores, operate and observe production services, debug customer issues end-to-end, optimize SQL performance, build Python services, and deploy containerized apps on AWS Kubernetes.

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.

Build and maintain backend microservices that command, monitor, and automate satellites. Own Python services end-to-end, design APIs, handle commands and telemetry, integrate with flight and ground systems, support internal users, and occasionally participate in live spacecraft operations and incident response.

Build and scale backend microservices that command, monitor, and automate satellites. Own Python production services, design APIs, handle commands/telemetry across satellite buses, collaborate with flight and embedded teams, support internal users, and participate in SatDevOps rotations to operate spacecraft and debug live missions.

Design and optimize microservices and high-performance distributed data pipelines for autonomous-vehicle AI: streaming, ETL, workflow orchestration, RAG workflows, model deployment, logging/security, and performance tuning while collaborating with systems and AI teams.

As a Senior Backend Engineer at Posh, you will design and scale backend services, manage AI infrastructure, and collaborate on integrating AI features into products.

As a Backend Engineer, you will design and optimize backend services, APIs, and data processing, collaborating with leadership and users.

Lead AI-driven development efforts, modernize engineering processes to enhance quality and speed in software development, and implement best practices for AI tools.

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